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Workers at oil refineries, power plantstrains and railroads, chemical plants, steel mills, shipyards and other asbestos jobsites in the state of Ohio may be at risk of developing mesothelioma cancer, lung cancer, asbestosis or other asbestos-related diseases. Thousands of workers may be at risk of developing these deadly diseases as a result of exposure to asbestos parts and other materials used at these sites.

If you or a loved one were exposed to asbestos at an Ohio jobsite and have developed symptoms of mesothelioma or another asbestos disease, you may be eligible to file a lawsuit or to receive asbestos testing at no out of pocket expense. For more information, contact the lawyers at Hissey Kientz, LLP by calling toll-free at 1-866-275-4454, or fill out the free case evaluation form located on this page.

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  • 3M (Cleveland)
A
  • A & I Company (Marietta)
  • A.& P. Tea Company (Ironton)
  • A.C. Humko (Columbus)
  • A.C. Williams (Ravenna)
  • A.E. Staley Manufacturing Company (Painesville)
  • A. Gottlieb Container (Cincinnati)
  • A.H. Pugh Printing Company (Cincinnati)
  • A.I. Root Company (Medina)
  • A.K. Property Corp (Canton)
  • A.K. Property Corporation (Wooster)
  • A.M. Higley Corp (Cleveland)
  • A.P. Green Refractory Company (Columbus)
  • A.S. Taft Power Building (Cincinnati)
  • A. Shulman Company (Akron)
  • Abb Automation (Wickliffe)
  • Abex Company Electro (Elyria)
  • Abex Corporation (Bedford)
  • Abex Corporation (Cleveland)
  • Abex Corporation (Elyria)
  • Abex Engineering (Elyria)
  • Abitec Corp (Columbus)
  • Acacia Heat (Cleveland)
  • Acands, Inc.
  • Acands, Inc. (Bowling Green)
  • Acands, Inc. (Cincinnati)
  • Acands, Inc. (Cleveland)
  • Acands, Inc. (Columbus)
  • Acands, Inc. (Toledo)
  • Accro Cast Corp (Dayton)
  • Ace Metal (Cleveland)
  • Acklin Stamping Company (Toledo)
  • Acme Machinery Company (Cleveland)
  • Acme Power Plant (Toledo)
  • Acme Sach & Door (Cincinnati)
  • Acme Stove & Repair (Cleveland)
  • Acme Wet Wash Laundry (Canton)
  • Acoustical Department (Cleveland)
  • Adamson United Company (Akron)
  • Adams School (Youngstown)
  • Addressograph-Multigraph Corporation (Cleveland)
  • Addressograph Multigraph Corp (Euclid)
  • Admiral King High School (Lorain)
  • Advance Bag Company (Middleton)
  • Advance Drum & Barrel (Cleveland)
  • Advance Sales (Cleveland)
  • A E Anderson (New Boston)
  • A E Anderson (New Richmond)
  • A E Burkhardt and Company (Cincinnati)
  • Aep Gavin Plant (Cheshire)
  • Aep Gen. James A. Gavin Plant (Cheshire)
  • Aep Kyger Creek Power Plant (Cheshire)
  • Aerodyn Company (Medina)
  • Aeronautics (Cleveland)
  • Aeronca Incorporated (Middleton)
  • Aeronica Manufacturing (Middleton)
  • Aero Products (Sandusky)
  • Aeroproducts Div Gmc (Vandalia)
  • Aeroquip Republic Rubber (Youngstown)
  • Aerospace (Cleveland)
  • Ae Staley Manufacturing Company (Painesville)
  • Aetna Iron and Steel Company (Bridgeport)
  • Aetna Paper Company (Dayton)
  • Aetna Rubber Company (Ashtabula)
  • Aetna Rubber Company (Cleveland)
  • Aetna Rubber Company (Sandusky)
  • Aetna Standard Ins Company (Bridgeport)
  • Aetna Standard Ir. Corporation (Bridgeport)
  • Aetna Stand Iron and Steel Company (Bridgeport)
  • Aetna Welding (Cleveland)
  • Airco Plastics (Sandusky)
  • Aircraft Braking Systems (Akron)
  • A I Research (Newark)
  • Air Injector Corporation (Cleveland)
  • Air National Guard Facilities (Columbus)
  • Air Nitrate Plant (Toledo)
  • Air Nitrates Corp (Cincinnati)
  • Air Service Command (Fairfield)
  • Ajax Management (Warren)
  • Ajax Manufacturing (Euclid)
  • Akron, Bedford and Cleveland Railway (Cleveland)
  • Akron, Bedford and Cleveland Railway Company (Bedford)
  • Akron, Bedford and Cleveland Railway Company (Cuyahoga Falls)
  • Akron and Cuyahoga Falls R.I. Company (Akron)
  • Akron Brewing Company (Akron)
  • Akron Childrens Hospital (Akron)
  • Akron City Hospital (Akron)
  • Akron Cuyahoga Falls R. I. Company (Cuyahoga Falls)
  • Akron Electric Company (Akron)
  • Akron Gas Company (Akron)
  • Akron General Health (Akron)
  • Akron General Hospital (Akron)
  • Akron Heating and Ventilating. Company (Akron)
  • Akron Iron Company (Akron)
  • Akron Milling Mining and Manufacturing Company (Akron)
  • Akron Oxygen (Willoughby)
  • Akron Rubber Reclaiming Company (Akron)
  • Akron Rubber Reclaiming Company (Barberton)
  • Akron Safety Building (Akron)
  • Akron St. Railway and Illnig. Company (Akron)
  • Akron Standard (Barberton)
  • Akron Standard Mold (Akron)
  • Akron Steam Heating Company (Akron)
  • Akron Steel Treating Plant (Akron)
  • Akron Thermal (Akron)
  • Akron Tower Supply Company (Akron)
  • Akron University (Akron)
  • Akron Univ Womens Dorm (Akron)
  • Akron Water Works Company (Akron)
  • Ak Steel (Zanesville)
  • Ak Steel Corp (Middleton)
  • Akwell Corp (Akron)
  • Akzo Chemical (Gallipolis)
  • Albert Bess (Fremont)
  • Albert Kahn Associated Architects and Enigineers Inc. (Sandusky)
  • Albert R. Hostetter Company (Dayton)
  • Albrecht Tool (Cleveland)
  • Alcoa (Brookpark)
  • Alcoa (Chillicothe)
  • Alcoa Aluminum (Cleveland)
  • Alcohol Plant Tank (Cincinnati)
  • Alexco Inc. (Niles)
  • Alfred A. Pope Building (Cleveland)
  • Alkali Rubber Company (Akron)
  • Allegheny Ludlum Steel (Waterville)
  • Allen County Institution Power Plant (Lima)
  • Allen Foundry & Machine (Lancaster)
  • Allen Products Company (Cleveland)
  • Allen Refractories Company (Columbus)
  • Allen School (Canton)
  • Alliance Cold Stge. and Packg. Company (Alliance)
  • Alliance Gas and Power Company (Alliance)
  • Alliance Research Center (Alliance)
  • Alliance Tubular Products (Alliance)
  • Allied Boiler (Cleveland)
  • Allied Chemical & Dye Corporation (Toledo)
  • Allied Chemical (Fostoria)
  • Allied Chemical (Ironton)
  • Allied Chemical and Dye Company (Ironton)
  • Allied Chemical Company (Painesville)
  • Allied Chemical Company (Youngstown)
  • Allied Chemical Corporation (South Point)
  • Allied Chemical Corporation (Warren)
  • Allied Egry Business Systems (Dayton)
  • Allied Engineering Company (Cleveland)
  • Allied Rubber & Mice (Cleveland)
  • Allied Service (Marietta)
  • Allied Signal (Fostoria)
  • Allis (Cleveland)
  • Allis-Chalmers Company (Norwood Plant) (Cincinnati)
  • Allis Chalmers Manufacturing Company (Norwood)
  • Alloy Engineering (Berea)
  • Alloy Industry (Berea)
  • Alloys & Chemical Manufacturing Company (Cleveland)
  • Alms and Doepke Company (Cincinnati)
  • Alpha-Portland Cement (Ironton)
  • Altivity Packaging (Middleton)
  • Alton Company (Cleveland)
  • Alum. Magnesium (Sandusky)
  • Aluminum Billets Inc (Niles)
  • Aluminum Corporation (Cleveland)
  • Aluminum Smelting & Refining Company (Cleveland)
  • Aluminum Smelting (Maple Heights)
  • Am. Sheet and Tin P. Company (Struthers)
  • Amac Enterprises (Cleveland)
  • Amax Specialty (Cleveland)
  • A M Byers and Company (Girard)
  • Amcast Industrial Corporation (Ironton)
  • Amc Corp Jeep Div (Toledo)
  • American Aluminum Company (Barberton)
  • American Art Works (Coshocton)
  • American Ball Bearing Company (Cleveland)
  • American Bitumals Corp (North Bend)
  • American Bituminus & Asphalt (Cincinnati)
  • American Book Company (Cincinnati)
  • American Bottle Company (Newark)
  • American Box Company (Cleveland)
  • American Brake Shoe Company (Elyria)
  • American Bridge (Lorain)
  • American Cancer Society (Dover)
  • American Can Company (Toledo)
  • American Cereal Company (Akron)
  • American Clay Machinery Company (Bucyrus)
  • American Coating Mills (Middleton)
  • American Crayon Company (Sandusky)
  • American Cyanamid Company (Fremont)
  • American Cynamid (Marietta)
  • American Diamalt Company (Cincinnati)
  • American Elec Power Service Corp (Columbus)
  • American Electric & Power Company (Marietta)
  • American Electric Power (Relief)
  • American Electric Power Company (Canton)
  • American Electric Power Company (Conesville)
  • American Electric Powerhouse (Beverly)
  • American Electric Power Service Corp (Brilliant)
  • American Encaustic Tiling Company (Zanesville)
  • American Fiberboard (Middleton)
  • American Forge and Machine Company (Canton)
  • American Fork and Hoe Company (Ashtabula)
  • American Fork and Hoe Company (Cleveland)
  • American Fork and Hoe Company (Geneva)
  • American Gas and Electric Company (Lima)
  • American Gas and Electric Service (Relief)
  • American Greetings Inc. (Cleveland)
  • American Handling Equip. (Cleveland)
  • American Hard Rubber Company (Akron)
  • American Hoist (Cleveland)
  • American Insurance Union Building (Columbus)
  • American Laundry Machine Company (Norwood)
  • American Louisiana Pipe Line Company (Defiance)
  • American Malleable Cast (Marion)
  • American Marietta Company (Marietta)
  • American Metal (Cambridge)
  • American Mineral Spirits Company (Toledo)
  • American Monarch (Cleveland)
  • American Motors Corporation (Toledo)
  • American Municipal Power Gorsuch Station (Marietta)
  • American Municipal Power Gravel Bank Power Plant (Marietta)
  • American Municipal Power Ohio, Inc. (Marietta)
  • American Oak Leather Company (Cincinnati)
  • American Portland Cement Company (Cincinnati)
  • American Radiator and Standard Sanitary Corp (Elyria)
  • American Radiator and Standard Sanitary Corp (Tiffin)
  • American Roll and Foundry Company (Canton)
  • American Rolling Mill Company (Middleton)
  • American Rolling Mill Company (South Columbus)
  • American Rolling Mill Company (Zanesville)
  • American Rollling Mills Company (Fremont)
  • American Rubber and Tire Company (Akron)
  • American Seeding Mach. Company (Springfield)
  • American Sewer Pipe Company (Barberton)
  • American Sheet and Tin Plate (Canton)
  • American Sheet and Tin Plate (Wellsville)
  • American Sheet and Tin Plate Company (Cambridge)
  • American Sheet and Tin Plate Company (Canal Dover)
  • American Sheet and Tin Plate Company (Martins Ferry)
  • American Sheet and Tin Plate Company (New Philadelphia)
  • American Sheet Tin Plate Company (Cleveland)
  • American Shipbuilding Company (Cleveland)
  • American Shipbuilding Company (Lorain)
  • American Shipyards (Toledo)
  • American Spring Wire (Cleveland)
  • American Steel & Wire Company (Cleveland)
  • American Steel (Marion)
  • American Steel and Wire Company (Newburgh)
  • American Steel Casting Foundries Company (Alliance)
  • American Stove Company (Cleveland)
  • American Stove Company (Lorain)
  • American Strawboard Company (Circleville)
  • American Straw Board Company (Lima)
  • American Structural Products Company (Toledo)
  • American Suede Shoe Company (Toledo)
  • American Tank (Cleveland)
  • American Tool Works (Cincinnati)
  • America Nut and Bolt Company (Cleveland)
  • American Viscose Corporation (Marietta)
  • American Welding & Manufacturing (Warren)
  • American Welding & Manufacturing Company (Niles)
  • American Welding (Youngstown)
  • American Wire Mills (Cleveland)
  • American Zinc Oxide (Columbus)
  • America Sheet Steel Company (Bridgeport)
  • America Sheet Steel Company (Niles)
  • America Sheet Tin Plate Company (Niles)
  • America Strawboard Company (Barberton)
  • America Weldless Steel Tube Company (Toledo)
  • Americn Cook Company (Cincinnati)
  • Am Steel and Hoop Company (Youngstown)
  • Am Tobacco Company (Middleton)
  • Am Works (Cleveland)
  • Anchor Hocking Corporation (Lancaster)
  • Anchor Hocking Glass Corporation (Lancaster)
  • Anchor Packing (Warren)
  • Anderson Construction (Portsmouth)
  • Andrew Jergens Company (Cincinnati)
  • Andrew Plocher (Dayton)
  • Andrews and Hitchcock Iron Company (Youngstown)
  • Andrews Soap Company (Cincinnati)
  • Angel Jay L Inc (Columbus)
  • Angel Jay L Inc (Toledo)
  • Anheuser Busch Brewery (Columbus)
  • Anheuser Busch Incorporated (Columbus)
  • Anna Dean Farm (Barberton)
  • Ann Arbor Railroad Company (Toledo)
  • Ansted and Burk Company (Springfield)
  • Anunciation Church (Cleveland)
  • Apex International (Cleveland)
  • Apex Smelting Company (Cleveland)
  • Apex Welding (Cleveland)
  • Ap G Fire Brick Company of Ohio (Norwood)
  • Ap Green F B Company (Lima)
  • Ap Green F B Company (Sandusky)
  • Ap Green F B Company of Michigan (Canton)
  • Ap Green F B Company of Ohio (Canton)
  • Ap Green Fire Brick Company of Ohio (Cincinnati)
  • Ap Green Refractories Company (Canton)
  • Ap Green Refractories Company (Cincinnati)
  • Ap Green Refractories Company (Columbus)
  • Ap Green Refractories Company (Independence)
  • Ap Green Refractories Company (Toledo)
  • Ap Green Refr Company of Ohio (Cleveland)
  • Ap Green Services Div Bi (Independence)
  • Ap Green Services Division (Cincinnati)
  • Apple Creek State Hospital (Canton)
  • Appleton Papers, Incorporated (Dayton)
  • Apron City Hospital (Akron)
  • Aquarium (Cincinnati)
  • Arbuckle Ryan Company (Alliance)
  • Arbuckle Ryan Company (Massillon)
  • Arbys (Parma)
  • Arby’s (Cleveland)
  • Archer Daniels Midland Company (Ashtabula)
  • ARCO (Cleveland)
  • Arhuckle Ryan Company (Toledo)
  • Aristech Chemical (Haverhill)
  • Aristech Chemical Corp (Ironton)
  • Arkview Federal Savings & Loan Company (Shaker Heights)
  • Armature Coil (Cleveland)
  • Armco (Ashland)
  • Armco Steel (Mansfield)
  • Armco Steel (Marion)
  • Armco Steel Corp (Zanesville)
  • Armco Steel Corporation (Fremont)
  • Armco Steel Corporation (Middleton)
  • Armour and Company (Alliance)
  • Armstrong Contracting & Supply (Cleveland)
  • Armstrong Cork Company (Cleveland)
  • Armstrong Cork Company (Columbus)
  • Army Air Force (Cleveland)
  • Arnold Hoffman Company (Cincinnati)
  • Arrow Aluminum (Avon Lake)
  • Arrow Aluminum (Cleveland)
  • Art Galvanizing (Cleveland)
  • Arthur G.Mckee & Company (Cleveland)
  • Arwood Corporation (Cleveland)
  • Asarco, Inc. (Columbus)
  • Asbestos & Asphalt Rfg. Company (Fremont)
  • Asbestos Service Company (Columbus)
  • Asbestos Service Company (Warren)
  • Asbestos Service Company (Youngstown)
  • Ashland Chemical (Columbus)
  • Ashland Chemical (South Point)
  • Ashland College (Ashland)
  • Ashland High School (Ashland)
  • Ashland Oil & Refining Company (Canton)
  • Ashland Oil (Ashland)
  • Ashland Oil (Belpre)
  • Ashland Oil (Lima)
  • Ashland Oil (South Point)
  • Ashland Oil, Incorporated (North Bend)
  • Ashland University (Ashland)
  • Ashtabula C Plant (Ashtabula)
  • Ashtabula General Hospital (Ashtabula)
  • Ashtabula Powerhouse (Ashtabula)
  • Ashtabula Scrap & Reclamation Plant (Ashtabula)
  • Ashtabula Tele Company (Ashtabula)
  • Ashtabula Water Supply Company (Ashtabula Harbor)
  • Ashtabula “C” Plant (Geneva)
  • Asphalt Block Pavement Company (Toledo)
  • Associated Sheet Metal Company (Cleveland)
  • At&T (Medina)
  • A T & T Company (Medina)
  • A T & T Company (Portsmouth)
  • A T & T Company (Sandusky)
  • Athens State Hospital (Athens)
  • Atkins & Pearce Manufacturing Company (Cincinnati)
  • Atlantic Foundry Company (Akron)
  • Atlas Car (Cleveland)
  • Atlas Foundry (Cleveland)
  • Atlas Laundry-Linen Supply (Columbus)
  • Atlas Underwear Company (Piqua)
  • Atmospheric Nitrogen Corporation (South Point)
  • Atomic Plant (Portsmouth)
  • Atomic Power Plant (Toledo)
  • Auglaize Box Board Company (Saint Marys)
  • August Wagner and Sons Brewing Company (Columbus)
  • Ault-Wilbong Company (Cincinnati)
  • Ault and Wiborg Company (Saint Bernard)
  • Ault and Wilborg Company (Norwood)
  • Aultman and Taylor Machinery Company (Mansfield)
  • Aultman Health Foundation (Colesville)
  • Aultman Health Services (Canton)
  • Aultman Hospital (Canton)
  • Austin Powder Company (Cleveland)
  • Autolite (Toledo)
  • Autolite Factory (Fostoria)
  • Automobile Club (Cleveland)
  • Automotive Equipment (Westlake)
  • Avci Manufacturing Corp (Evendale)
  • Avco Corporation (Cincinnati)
  • Aventis Pharmaceuticals (Cincinnati)
  • Avon Beach Station (Avon)
  • Avon Lake Powerhouse (Cleveland)
  • Avon Lake Power Plant (Avon Lake)
  • Avtron Manufacturing, Inc. (Cleveland)
B
  • B & A Plumbing & Heating Company (Sandusky)
  • B & O (Chillicothe)
  • B & T Metals (Columbus)
  • B & W (Willoughby)
  • B. & O. (Cincinnati)
  • B. F. Goodrich Chemical Company (Akron)
  • B.F. Goodrich Chemical Company (Avon Lake)
  • B.F. Goodrich Chemical Company (Cleveland)
  • B.F. Goodrich Company (Cincinnati)
  • B.F. Goodrich Company (Cleveland)
  • B. F. Goodrich Development Center (Avon Lake)
  • B.F. Goodrich Research Lab (Brecksville)
  • B. F. Goodrich Siding (Cincinnati)
  • B. F. Goodrich Spur (Cincinnati)
  • B.P. America Inc. (Toledo)
  • B.P. Chemical (Lima)
  • B.P. Oil (Toledo)
  • B.P. Refinery (Lima)
  • Babcock & Wilcox (Brilliant)
  • Babcock & Wilcox Canton Works (Barberton)
  • Babcock & Wilcox Canton Works (Canton)
  • Babcock & Wilcox Company (Alliance)
  • Babcock & Wilcox Company (Barberton)
  • Babcock & Wilcox Company (Cleveland)
  • Babcock and Wilcoxx Company (Ashland)
  • Babcox & Wilcox (Dayton)
  • Bailey Meter Company (Cleveland)
  • Bailey Meter Company (Wickliffe)
  • Bakelite Company (Marietta)
  • Baker Rauling Company (Cleveland)
  • Baker Wood Preserving Company (Marion)
  • Baldwin – Lima – Hamilton Corp (Fremont)
  • Baldwin Company (Cincinnati)
  • Baldwin Piano Company (Cincinnati)
  • Baltimore & Ohio Railroad (Cincinnati)
  • Baltimore & Ohio Railroad Company (Canton)
  • Baltimore & Ohio Railroad Company (Dayton)
  • Baltimore & Ohio Railroad Company (Ivorydale)
  • Baltimore & Ohio Railroad Company (Lorain)
  • Baltimore & Ohio Team Track (Athens)
  • Baltimore and Ohio Railway Company (Cleveland)
  • Bamburger Reinthol (Cleveland)
  • B and O Rr Company (Newark)
  • B and W Company (East Liverpool)
  • Bandw Fossil Power Generation Divon (Barberton)
  • Barberton Aluminum (Barberton)
  • Barberton Citizens Hospital (Barberton)
  • Barberton City Schools (Barberton)
  • Barberton Hs (Barberton)
  • Barberton Land and Hotel Company (Barberton)
  • Barberton Laundry (Barberton)
  • Barberton Manufacturing. Company (Barberton)
  • Bardsons – Oliver (Cleveland)
  • Barnes Manufacturing Company (Mansfield)
  • Barney and Smith Car Company (Dayton)
  • Barrett Brewing Company (Cleveland)
  • Barrett Chemical (Ironton)
  • Barrett Company (Cleveland)
  • Barrett Company (Struthers)
  • Barrett Company (Toledo)
  • Barrett Company (Youngstown)
  • Barrett Division (Ironton)
  • Barth – Clevite (Cleveland)
  • Barth – Mcneil (Cleveland)
  • Bartholomew City Hospital (Columbus)
  • Bartlett Brothers Company (Cleveland)
  • BASF Corporation (Greenville)
  • Basic Incorporated (Fostoria)
  • Basic Oxygen Furnace (Cleveland)
  • Basic Science Building (Cincinnati)
  • Battelle Memorial Institute (Columbus)
  • Bayer Corp Gerald W. Leas (Addyston)
  • Bayer Corp Port Plastics (Addyston)
  • Bayshore Power Plant (Toledo)
  • Bay West (Middleton)
  • Bd. of County Comm. (Cleveland)
  • Beach Enameling Company (Coshocton)
  • Beach Park Power Railway Company (Lorain)
  • Beach St. Heating (Akron)
  • Beans Ferry (Martins Ferry)
  • Bearfoot Sole Company Inc (Wadsworth)
  • Beaver County Light Company (East Liverpool)
  • Beaver Remmer Plant (Dayton)
  • Bebensburg Power Company (Barberton)
  • Bechtel Corporation (Ashtabula)
  • Bechtol Carney and Company (Toledo)
  • Becker, Barnes & Becker Rendering Company (Bryan)
  • Becker – Seidel Company (Cleveland)
  • Beckett Paper Company (Fremont)
  • Beckford Plant (New Richmond)
  • Beckjord Power Plant (New Richmond)
  • Beckman Senior and Company (Cleveland)
  • Bedford High School (Bedford)
  • Bedford Pilot Plant (Bedford)
  • Beekman “A” Housing Project (Cincinnati)
  • Belfonti (Canton)
  • Belfont Iron Works Company (Ironton)
  • Belfort Iron Works (Ironton)
  • Bellaire Gas and Electric Company (Bellaire)
  • Bellaire Light and Power Company (Bellaire)
  • Bellaire Nail Works (Bellaire)
  • Bellaire Steel Company (Bellaire)
  • Bella Isle (Cleveland)
  • Bell Stone School (Canton)
  • Belmont Brewing Company (Martins Ferry)
  • Benada Aluminum (Girard)
  • Bendix-Westinghouse Company (Elyria)
  • Bendix Corp (Dayton)
  • Benjamin Hey Company (Cincinnati)
  • Berger Brewing Company (Cincinnati)
  • Bergr Mbg. Company (Canton)
  • Bernert Heat Treating (Cincinnati)
  • Bersted Manufacturing (Fostoria)
  • Bescast Inc (Willoughby)
  • Bessemer Linestone Company (Youngstown)
  • Best Foundry Company (Bedford)
  • Best Truck Equipmt (Wickliffe)
  • Bethandale Corporation (Cleveland)
  • Bethesda Hospital (Cincinnati)
  • Bethesda Hospital (Zanesville)
  • Bethesda Oak Hospital (Cincinnati)
  • Bethesda Steam Line (Cincinnati)
  • Bethlehem Steel (Massillon)
  • Bettcher (Cleveland)
  • Beverly Powerhouse (Beverly)
  • Bf Goodrich, Avon Lake Chemical (Avon Lake)
  • B F Goodrich Chemical Company (Avon Lake)
  • B F Goodrich Company (Marietta)
  • Bf Goodrich Company (Marion)
  • Bf Goodrich Experimental Station (Avon Lake)
  • B F Goodrich Rubber Company (Akron)
  • Big Four Railway Company (Cincinnati)
  • Bingham (Cleveland)
  • Bingham-Herbrand Corporation (Fremont)
  • Bird Electronics (Solon)
  • Bishop & Babcock Manufacturing Company (Cleveland)
  • Bistron Corp (Lima)
  • Blace Cleaners (Cleveland)
  • Black and Clauson Company (Fremont)
  • Black Drill (Cleveland)
  • Black Pollak Iron Company (Cincinnati)
  • Blau Knox (Cleveland)
  • Blau Power Piping Division (Youngstown)
  • Bleille Supply (Fremont)
  • Bliss Company (Canton)
  • Bluffton College (Bluffton)
  • Blymer Ice Machine Company (Cincinnati)
  • Board of City Affairs (Cincinnati)
  • Board of County Commissionerof Cuyahoga Company (Cleveland)
  • Board of Education (Mansfield)
  • Board of Education (Saint Bernard)
  • Board of Education of City of Dayton (Dayton)
  • Board of Education School District (Cincinnati)
  • Board of Public Service (Columbus)
  • Board of Public Service (Dayton)
  • Board of Public Service (Mansfield)
  • Board of Public Service (Troy)
  • Board of Trustees Ohio Boys Industrial School (Lancaster)
  • Bobby Brooks (Cleveland)
  • Bob Evans’ Restaurant (Cincinnati)
  • Bodwell Lemmon Company (Cleveland)
  • Boehm Pressed Steel Company (Cleveland)
  • Boggs Industry Electric (Ironton)
  • Boise Cascade (Cleveland)
  • Bolling Oven (Avon)
  • Booher Insulation, Inc. (Dayton)
  • Bormot Company (Canton)
  • Boston & Ohio Railroad (Cleveland)
  • Boston & Ohio Railroad (Lorain)
  • Bourne-Fuller Company (Cleveland)
  • Bourne and Fuller Company (Cleveland)
  • Bowden Manufacturing (Willoughby)
  • Bowling Green Light and Power Company (Bowling Green)
  • Bowling Green State University (Bowling Green)
  • Bow Socket Company (Ashtabula)
  • BP (Cleveland)
  • BP Amoco Ohio (Toledo)
  • Bradley Electric Light, Heat & Power Company (Cleveland)
  • Braeburn (Cleveland)
  • Brainard Plumbing Company (Cleveland)
  • Brainard Strapping (Warren)
  • Brand Plastic (Canton)
  • Brauer Supply (Cincinnati)
  • Braun Brothers Packing Company (Troy)
  • Breeding Insulation Company Inc. (Cincinnati)
  • Briarhill and Campbell Works Plant (Youngstown)
  • Briar Hill Iron and Coal Company (Youngstown)
  • Brice Dreber Asylum (Cleveland)
  • Bridgeport Brass Company (Ashtabula)
  • Brier Hill Iron and Coal Company (Youngstown)
  • Brier Hill Steel Company (Youngstown)
  • Briggs Manufacturing Company (Cincinnati)
  • Briggs Manufacturing Company (Youngstown)
  • Brighton Corporation (Cincinnati)
  • Brighton Mushroom Farm (Napoleon)
  • Brilliant Power Station (Brilliant)
  • Britton Service Company (Cleveland)
  • Broadview Heights Hospital (Brecksville)
  • Broadway High Service Pumping Station (Toledo)
  • Broadway Plant (Toledo)
  • Brodess Construction (Cleveland)
  • Bromaid Steel Company (Warren)
  • Bronson Portland Cement Company (Cleveland)
  • Brost Foundry (Cleveland)
  • Brown Bonnell Works (Youngstown)
  • Brown Bormell Iron Company (Youngstown)
  • Browne and Fuller Company (Cleveland)
  • Brownell Stoker & Combust (Dayton)
  • Brown Fintube (Elyria)
  • Brown Fin Tube Company (Elyria)
  • Brownflo Sicker & Comb Company (Canton)
  • Brown Graves Company (Akron)
  • Brown Hoisting Mchy Company (Cleveland)
  • Browning Company (Cleveland)
  • Browning Eng. Company (Cleveland)
  • Browning Manufacturing Company (Mansfield)
  • Brown Plastering Company (Cincinnati)
  • Brown Steel (Columbus)
  • Bruckman Brewing Company (Cincinnati)
  • Brush-Wellman (Toledo)
  • Brush Beryllium (Cleveland)
  • Brush Electric Company (Cleveland)
  • Brush Laboratories (Bedford)
  • Brush Laboratories (Cleveland)
  • Brush Wellman, Inc. (Cleveland)
  • Bryan Light Dept (Bryan)
  • Bryan Municipal Light & Power (Bryan)
  • Buckeye Brewing Company (Toledo)
  • Buckeye Bumpers Div (Springfield)
  • Buckeye Cellulose Corporation (Dayton)
  • Buckeye Cereal Company (Massillon)
  • Buckeye Cotton Oil Company (Cincinnati)
  • Buckeye Electric Company (Cleveland)
  • Buckeye Engine Company (Salem)
  • Buckeye Foundry Company (Cincinnati)
  • Buckeye Insulating Company (Cleveland)
  • Buckeye Iron and Brass Works (Dayton)
  • Buckeye Iron Coupler Company (Columbus)
  • Buckeye Mal. Iron and Couple Company (Columbus)
  • Buckeye Ordnance Plant (South Point)
  • Buckeye Ordnance Works (South Point)
  • Buckeye Ordnance Works. (Ironton)
  • Buckeye Power Inc. (Brilliant)
  • Buckeye Rolling Mill Company (Newark)
  • Buckeye Rubber Products Company (Cleveland)
  • Buckeye Steel Casting Company (South Columbus)
  • Buckeye Steel Castings Company (Columbus)
  • Buckeye Steel Mill (Jackson)
  • Buck Power (Brilliant)
  • Bucyrus Electric Light Company (Bucyrus)
  • Bucyrus Gas and Electric Company (Bucyrus)
  • Buel Gatterdam Company, Incorporated (Columbus)
  • Buffalo Road Roller Company (Springfield)
  • Bulk Mail (Cincinnati)
  • Bullock Elec and Manufacturing Company (Cincinnati)
  • Bullock Works (Norwood)
  • Bunker Hill Greenhouses Inc (Medina)
  • Bunting Brass and Bronze Company (Toledo)
  • Burdett (Mansfield)
  • Burdett (New Philadelphia)
  • Burdette Oygen (Youngstown)
  • Burdett Oxygen Company (Cleveland)
  • Burdox (Cleveland)
  • Burger Brewing (Cincinnati)
  • Burger Chef (Dayton)
  • Burger Station (Shadyside)
  • Burgess Steel and Iron Company (Portsmouth)
  • Burke Golf Company (Newark)
  • Burns Incorportion (Lorain)
  • Bushey Cotton Company (Columbus)
  • Butler County Jail (Cincinnati)
  • Butler County Retarded Children\\\’s School (Fremont)
  • Butler County Vocational School (Fairfield)
  • Byerly Asphalt (Marietta)
C
  • C.A. Litzler (Cleveland)
  • C.C.C. and St. L. Railway (Columbus)
  • C.C.C. and St. L.Railway Company (Bellefontaine)
  • C.E.I. (Ashtabula)
  • C.P. Hall Chemical (Akron)
  • C. Schmidt and Sons Inc (Cleveland)
  • C. W. Booher, Inc. (Dayton)
  • C.W. Raymond Company (Dayton)
  • Cabot Corporation (Ashtabula)
  • Cabot Titania, Inc. (Ashtabula)
  • Cabot Titania Corp (Ashtabula)
  • Cabot Titania Corporation (Cleveland)
  • Cal-Hio Chemical Plant (Cleveland)
  • Calhio Chemicals, Inc. (Perry)
  • Calhoun Residence Hall Plbg (Evendale)
  • Cambria (Lorain)
  • Cambridge Brewing Company (Cambridge)
  • Cambridge Glass Company (Cambridge)
  • Cambridge State Hospital (Cambridge)
  • Cambridge State Hospital (Canton)
  • Camp and Thompson (Cuyahoga Falls)
  • Campbell Soup Company (Napoleon)
  • Canadian Copper Company (Cleveland)
  • Canal Steam Station (Cleveland)
  • Canal Street Garage (Cincinnati)
  • Candle Lite Homes Lot 23 (Columbus)
  • Canton Bearing Plant (Canton)
  • Canton Bearing Plant (Colesville)
  • Canton Casting (Canton)
  • Canton City Sewage Disposal Plant (Canton)
  • Canton Die (Canton)
  • Canton Drop Forge (Colesville)
  • Canton Drop Forging & Manufacturing. Company (Canton)
  • Canton Drop Forging & Manufacturing Company (Massillon)
  • Canton Electric Company (Canton)
  • Canton Electric Light and Power Company (Canton)
  • Canton Forge and Axle Works (Canton)
  • Canton Forge Plant (Canton)
  • Canton Hughes Pump Company (Canton)
  • Canton Laundry and Cleaning Company (Canton)
  • Canton Light Heat and Power Company (Canton)
  • Canton Malleable Iron Company (Canton)
  • Canton Saw Company (Canton)
  • Canton Screen Plant (Canton)
  • Canton Sewage (Canton)
  • Canton South High School (Canton)
  • Canton Steel Company (Canton)
  • Canton Steel Foundry Company (Canton)
  • Capital City Products Company (Columbus)
  • Capitol Savings and Trust Company (Columbus)
  • Carbon Black (Belpre)
  • Cardinal Operating Company (Brilliant)
  • Cardinal Powerhouse (Brilliant)
  • Cardinal Power Plant (Brilliant)
  • Cardinal Power Station (Brilliant)
  • Carew Building (Cincinnati)
  • Carew Tower Building (Cincinnati)
  • Cargill, Inc. (Dayton)
  • Carlisle Chemical Works (Reading)
  • Carl Meyer Corp (Rocky River)
  • Carlson Electric Company (Youngstown)
  • Carlson Fabricating & Welding (Lorain)
  • Carnahan Tin Plate and Sheet Company (Canton)
  • Carnation Company (Coshocton)
  • Carnegie-Illinois Steel Corporation (Youngstown)
  • Carnegie Ill. Steel Corporation (Canton)
  • Carnegie Steel Company (Bellaire)
  • Carnegie Steel Company (Cleveland)
  • Carnegie Steel Company (Columbus)
  • Carnegie Steel Company (Fairport Harbor)
  • Carnegie Steel Company (Mingo Junction)
  • Carpenters Union – Local 100 (Columbus)
  • Carrier Corporation (Akron)
  • Carroll Foundry and Machine Works (Bucyrus)
  • Carrousel Shopping Center (Cincinnati)
  • Carthage Mills. Inc. (Cincinnati)
  • Case Crane and Kilbourne Jacobs Company (Columbus)
  • Case Institute Library and Humaniti (Cleveland)
  • Case Institute of Technology (Cleveland)
  • Case School of Applied Science (Cleveland)
  • Case Western Reserve University (Cleveland)
  • Cash Sale (Cleveland)
  • Castalloy (Brookpark)
  • Castle Homes (Akron)
  • Catalytic Construction Company (Toledo)
  • Catalytic Inc (Piqua)
  • Caxtron Building Company (Cleveland)
  • Cecil Peck (Cleveland)
  • Cedar & Warrensville Center Md. (Cleveland)
  • Cedar Apartments (Cleveland)
  • Cedar Ave Power House (Cleveland)
  • Cedar Locust (Canton)
  • Cedar Road Apartments (Cleveland)
  • Cedar School (Canton)
  • Ceder Apartments (Cleveland)
  • Cei Powerhouse (Cleveland)
  • Celina Stearic Acid Company (Celina)
  • Celotex Corporation (Cleveland)
  • Celotex Corporation (Lockland)
  • Central Alloy Canton (Canton)
  • Central Alloy Steel Corp (Canton)
  • Central Aluminum (Columbus)
  • Central Ave Shops (Toledo)
  • Central Branch (Dayton)
  • Central Brass (Cleveland)
  • Central Catholic High School (Canton)
  • Central Concrete Supply (Lima)
  • Central Foundry (Defiance)
  • Central Furnace (Cleveland)
  • Central Furnace Company (Massillon)
  • Central Heating Company (Toledo)
  • Central Market St. Railway Company (Columbus)
  • Central National Bank (Cleveland)
  • Central Ohio Light & Power (Bluffton)
  • Central Silica Company (Zanesville)
  • Central Steel Company (Massillon)
  • Central Thomson Houston Company (Cincinnati)
  • Central Trust (Cincinnati)
  • Central Union Depot and Railway Company (Cincinnati)
  • Central Union Telephone Building (Columbus)
  • Centra Sales Company (Cleveland)
  • Centria (Cambridge)
  • Centrifugal Castings (Ravenna)
  • Century Die (Fremont)
  • Cerro Copper & Brass (Cleveland)
  • Certified Alloys (Cleveland)
  • Certified Alloys (Maple Heights)
  • C E Sears and Company (Circleville)
  • Chafer and Becher (Cleveland)
  • Champion Bar and Knife Company (Springfield)
  • Champion Coated Paper Company (Fremont)
  • Champion International Paper Mill (Fremont)
  • Champion Machine & Forging (Cleveland)
  • Champion Paper (Chillicothe)
  • Champion Papers, Inc. (Fremont)
  • Champion Spark Plug Company (Toledo)
  • Champion Works (Springfield)
  • Champlain Street Plant (Toledo)
  • Chandler Price Company (Cleveland)
  • Charles F. Ketterling Memorial (Dayton)
  • Charles Hoffman Company (Mansfield)
  • Charles Pfizer & Company Inc (Gibsonburg)
  • Charles Sucher Packing Company (Dayton)
  • Chas Boldt Company (Cincinnati)
  • Chase Brass & Copper Company (Cleveland)
  • Chase Brass & Copper Company (Euclid)
  • Chatfield Manufacturing Company (Carthage)
  • Cheasapeake & Ohio Railroad (Fremont)
  • Chemical Abstract Building (Columbus)
  • Chemical Products Company (Reading)
  • Chemical Products Plant (Cleveland)
  • Chemical Products Works (Cleveland)
  • Chemical Rubber Company (Cleveland)
  • Chemidyne Corporation (Macedonia)
  • Cherry Valley Iron Works (Leetonia)
  • Chesapeake and Ohio Railroad (Toledo)
  • Cheshire Power Station (Cheshire)
  • Chestnut St. Power Plant (Saint Marys)
  • Chevrolet (Cleveland)
  • Chevrolet Division of General Motors Company (Norwood)
  • Chevrolet Motor Division (Parma)
  • Chevrolet Motor Plant (Brookpark)
  • Chevrolet Plant (Toledo)
  • Chevron Asphalt Company (Belpre)
  • Chevron Asphalt Company (Cincinnati)
  • Chevron Asphalt Company (North Bend)
  • Chevy Plant-General Motors (Cleveland)
  • Chicago , Indiana and Southern Railroad Company (Cleveland)
  • Chicago and Toledo Railway Company (Toledo)
  • Chicago Bridge & Iron Company (Lima)
  • Children’s Home (Cincinnati)
  • Children’s Hospital (Cincinnati)
  • Children’s Mental Hospital (Fremont)
  • Chilliclothe Mills Rec Area (Chillicothe)
  • Chillicohigh School (Chillicothe)
  • Chillicothe Mills (Chillicothe)
  • Chillicothe Paper Company (Chillicothe)
  • Chillicothe Tire and Rubber Company (Chillicothe)
  • Chittenden Hotel (Columbus)
  • Christ Hospital (Cincinnati)
  • Christ Hospital (Evendale)
  • Christian Moerlein Brewing Company (Cincinnati)
  • Chrysler (Bowling Green)
  • Chrysler Corp (Fostoria)
  • Chrysler Corp (Perrysburg)
  • Chrysler Corporation (Dayton)
  • Chrysler Corporation (Toledo)
  • Chrysler Corporation (Twinsburg)
  • Church of Christ Scientist (Cleveland)
  • Cincinnati, Newport, and Covington Railway (Cincinnati)
  • Cincinnati Abbatoir Company (Cincinnati)
  • Cincinnati and Columbus Traction Company (Cincinnati)
  • Cincinnati and Eastern Electric Railway Company (Cincinnati)
  • Cincinnati and Hamilton E.L. Railway (Middleton)
  • Cincinnati and Hamilton Electric Street Railway Company (Cleveland)
  • Cincinnati and Newport Railway Company (Cincinnati)
  • Cincinnati and Suburban Bell Telephone Company (Cincinnati)
  • Cincinnati Bell (Cincinnati)
  • Cincinnati Brewing Company (Fremont)
  • Cincinnati Car Company (Cincinnati)
  • Cincinnati Chemical Company (Cincinnati)
  • Cincinnati Chemical Works (Norwood)
  • Cincinnati Chemical Works (Saint Bernard)
  • Cincinnati Children’s Hospital & Medical Center (Cincinnati)
  • Cincinnati Club (Cincinnati)
  • Cincinnati Coffin Company (Cincinnati)
  • Cincinnati Corrigating Company (Cincinnati)
  • Cincinnati Country Club (Cincinnati)
  • Cincinnati Edison Electric Company (Cincinnati)
  • Cincinnati Electronics (Cincinnati)
  • Cincinnati Gas & Electric (Avon Lake)
  • Cincinnati Gas & Electric Company (New Richmond)
  • Cincinnati Gas and Electric Company (Cincinnati)
  • Cincinnati Gas and Electric Company (Moscow)
  • Cincinnati Gas and Electric Company (North Bend)
  • Cincinnati General Hospital (Cincinnati)
  • Cincinnati Gymnasuim (Cincinnati)
  • Cincinnati Ice Manufacturing and Cold Storage Company (Cincinnati)
  • Cincinnati Industries Inc (Cincinnati)
  • Cincinnati Machine (Cincinnati)
  • Cincinnati Machine Unova (Cincinnati)
  • Cincinnati Masonic Temple Company (Cincinnati)
  • Cincinnati Milacron (Cincinnati)
  • Cincinnati Milling Machine Company (Cincinnati)
  • Cincinnati Municipal Airport (Cincinnati)
  • Cincinnati Music Hall Association (Cincinnati)
  • Cincinnati Northern Traction Company (Fremont)
  • Cincinnati Post Office (Cincinnati)
  • Cincinnati Refinery (Cleves)
  • Cincinnati Rubber Manufacturing Company (Cincinnati)
  • Cincinnati Rubber Manufacturing Company (Norwood)
  • Cincinnati Savings Curtain Wall (Cincinnati)
  • Cincinnati Soap Company (Dayton)
  • Cincinnati Specialties (Cincinnati)
  • Cincinnati Street Railway Company (Cincinnati)
  • Cincinnati Suede (Cincinnati)
  • Cincinnati Terminal Warehouse Company (Cincinnati)
  • Cincinnati Traction Company (Cincinnati)
  • Cincinnati Union Terminal Company (Cincinnati)
  • Cincinnati Water Works (Cincinnati)
  • Cincinnati Work House (Cincinnati)
  • Circleville High School (Circleville)
  • Circleville Light and Power Company (Circleville)
  • Circleville Plant Al Russkow (Circleville)
  • Citizens Electric Railway Light and Power Company (Mansfield)
  • Citizens Lighting and Heating Company (Toledo)
  • City and Suburban Telegraph Ass\\\’N (Cincinnati)
  • City Asbestos Company (Cleveland)
  • City Auto Stamping Company, Inc. (Toledo)
  • City Hall (Athens)
  • City Hall (Cincinnati)
  • City Heat and Light Company (Fostoria)
  • City Hospital (Cleveland)
  • City Hospital of Akron (Akron)
  • City of Akron, Department. of Public Services (Akron)
  • City of Bryan Job (Toledo)
  • City of Cincinnati Department of Public Works (Cincinnati)
  • City of Cincinnati Water Works Department (Cincinnati)
  • City of Cleveland, Department of Public Utilities, Div Light and Power (Cleveland)
  • City of Cleveland – Ridge Road Incinerator (Cleveland)
  • City of Cleveland – Southerly Sewage Disposal Plant (Cleveland)
  • City of Cleveland Board of Public Service (Cleveland)
  • City of Cleveland Boys Farm (Hudson)
  • City of Cleveland Div Ave Pumping Sta (Cleveland)
  • City of Cleveland Fairmount Pumping Station (Cleveland)
  • City of Cleveland Water Works Kirkland Street Pumping Station (Cleveland)
  • City of Dayton Water Works Pumping Station (Dayton)
  • City of Hamilton Municipal Building (Fremont)
  • City of Hamilton Ohio Department of Public Utilities (Fremont)
  • City of Hamilton Water Works Department (Fremont)
  • City of Napoleon Municipal Water & Electric (Napoleon)
  • City of Orrville – Municipal Power Plant (Orrville)
  • City of Painesville Municipal Light Plant (Painesville)
  • City of Painesville Power (Painesville)
  • City of Piqua (Piqua)
  • City of Reading Municipal Electric Plant (Reading)
  • City of St. Marys Municipal Power Plant (Saint Marys)
  • City of Toledo Water Works (Toledo)
  • City of Troy Power Plant (Troy)
  • City Power Plant (Fremont)
  • City Railway Company (Dayton)
  • City Water Department (Alliance)
  • City Water Department (Fostoria)
  • City Water Department (Lorain)
  • City Water Department (Newark)
  • Civil Aeronautic Administration (Oberlin)
  • Clark & Greater Cleve Garden Center (Cleveland)
  • Clark & J&L Steel (Cleveland)
  • Clark (Euclid)
  • Clark (Mansfield)
  • Clark Asbestos Company (Cleveland)
  • Clark Asbestos Company (Lorain)
  • Clark Asbestos Company (Oberlin)
  • Clark Equipment Company (Cleveland)
  • Clark Equipment Company (Lima)
  • Clark Grave Vault Company (Columbus)
  • Clark Refining and Marketing Inc (Lima)
  • Clark Refining Ohio (Lima)
  • Clev. Welding and Manufacturing Company (Cleveland)
  • Cleve Bearing Prod (Cleveland)
  • Cleve Cap Screw Company (Cleveland)
  • Cleveland & Sandusky Brewing Corporation (Cleveland)
  • Cleveland, Cincinnati Chicago and St. Louis Railway (Bellefontaine)
  • Cleveland, Painesville, and Ashtabula Railroad (Cleveland)
  • Cleveland Aircraft (Avon)
  • Cleveland Akron Bag Company (Cleveland)
  • Cleveland Alloy (Berea)
  • Cleveland and Elyria Electric Railway Company (Cleveland)
  • Cleveland and Painesville Electric Railroad (Painesville)
  • Cleveland and Painesville Electric Railroad (Toledo)
  • Cleveland and South Western Tractor Company (Elyria)
  • Cleveland Arcade Company (Cleveland)
  • Cleveland Armature (Cleveland)
  • Cleveland Arm H (Cleveland)
  • Cleveland Automobile Company (East Cleveland)
  • Cleveland Axle Manufacturing Company (Canton)
  • Cleveland Bakery (Cleveland)
  • Cleveland Berea Elyria and Oberlin Railway (Cleveland)
  • Cleveland Berea Elyria and Oberlin Railway (Elyria)
  • Cleveland Board of Education (Cleveland)
  • Cleveland Builders Supply Company (Cleveland)
  • Cleveland Cap Screw Company (Cleveland)
  • Cleveland City Cable Railway Company (Cleveland)
  • Cleveland City Forge and Iron Company (Cleveland)
  • Cleveland City Railway Company (Cleveland)
  • Cleveland Cliffs Iron Company (Cleveland)
  • Cleveland Clinic (Cleveland)
  • Cleveland Clinic Foundation (Cleveland)
  • Cleveland Clinic Hospital (Cleveland)
  • Cleveland Crane & Engineering Company (Wickliffe)
  • Cleveland Diesel Engine (Cleveland)
  • Cleveland Electric Company (Avon Lake)
  • Cleveland Electric Illluminating Company (Ashland)
  • Cleveland Electric Illuminating (Ashtabula)
  • Cleveland Electric Illuminating (Avon)
  • Cleveland Electric Illuminating Company (Ashtabula Harbor)
  • Cleveland Electric Illuminating Company (Avon Lake)
  • Cleveland Electric Illuminating Company (Cleveland)
  • Cleveland Electric Illuminating Company (Eastlake)
  • Cleveland Electric Illuminating Company (Willoughby)
  • Cleveland Electric Lt Company (Cleveland)
  • Cleveland Electric Railway Company (Cleveland)
  • Cleveland Electro Alloys (Cleveland)
  • Cleveland Electro Metals (Cleveland)
  • Cleveland Electrometals (Cleveland)
  • Cleveland Elyria and Westrn Railway (Elyria)
  • Cleveland Elyria Electric Railway Company (Cleveland)
  • Cleveland Energy Resource (Cleveland)
  • Cleveland Faucet Company (Cleveland)
  • Cleveland Foundry Company (Cleveland)
  • Cleveland Frog and Crossing Company (Cleveland)
  • Cleveland Furnace Company (Cleveland)
  • Cleveland General Electric Company (Cleveland)
  • Cleveland General Hospital (Cleveland)
  • Cleveland Grain Company (Mansfield)
  • Cleveland Graphite Bronze Company (Cleveland)
  • Cleveland Hardware Company (Cleveland)
  • Cleveland Hippodroma Company (Cleveland)
  • Cleveland Hopkins Airport (Cleveland)
  • Cleveland Ice and Refigerating Company (Cleveland)
  • Cleveland Illuminating Company (Cleveland)
  • Cleveland Lake Road Generating Station (Cleveland)
  • Cleveland Laundry Company (Cleveland)
  • Cleveland Medical Center (Cleveland)
  • Cleveland Metal Abrasive (Cleveland)
  • Cleveland Metal Products Company (Cleveland)
  • Cleveland Metro General Hospital (Cleveland)
  • Cleveland Metropolitan General Hospital (Cleveland)
  • Cleveland Metropolitan Housing Authority (Cleveland)
  • Cleveland Milling Company (Cleveland)
  • Cleveland Mine (Cleveland)
  • Cleveland Museum of Art (Cleveland)
  • Cleveland Oak Belt (Cleveland)
  • Cleveland Painesville and Eastern Traction Company (Painesville)
  • Cleveland Painsville and Eastern Railroad Company (Cleveland)
  • Cleveland Painsville and Eastern Railway (Willoughby)
  • Cleveland Pneumatic Tool (Cleveland)
  • Cleveland Precision (Cleveland)
  • Cleveland Precision (Euclid)
  • Cleveland Provision Company (Cleveland)
  • Cleveland Public Power (Cleveland)
  • Cleveland Railway Company (Cleveland)
  • Cleveland Regional Treatment Center (Cleveland)
  • Cleveland Rubber Corporation Company (Cleveland)
  • Cleveland Shipbuilding (Lorain)
  • Cleveland Shopping News Company (Cleveland)
  • Cleveland Southwestern and Columbus Railway Company (Elyria)
  • Cleveland Southwestern and Columbus Ty Company (Cleveland)
  • Cleveland Stamping and Tool Company (Cleveland)
  • Cleveland State Hospital (Cleveland)
  • Cleveland State University (Cleveland)
  • Cleveland Stevedore Company (Huron)
  • Cleveland Thermal Energy (Cleveland)
  • Cleveland Tranist Drill Company (Cleveland)
  • Cleveland Trust Company Building (Cleveland)
  • Cleveland Twist Drill Company (Cleveland)
  • Cleveland Union Terminals (Cleveland)
  • Cleveland Water Condition (Cleveland)
  • Cleveland Water Works (Cleveland)
  • Cleveland Wire & Spring Company (Cleveland)
  • Cleveland Wire Plant (Cleveland)
  • Cleveland Works (Cleveland)
  • Cleveland Worsted Mills Company (Cleveland)
  • Cleveland Worsted Mills Company (Newburgh)
  • Cleveland Worster Mills Company (Ravenna)
  • Clevite Corporation (Bedford)
  • Clevite Corporation (Cleveland)
  • Clevite Engine (Cleveland)
  • Clevite Research Center (Cleveland)
  • Climax Tire and Rubber Company (Delaware)
  • Clopay Building (Cincinnati)
  • Cloverleaf High School (Canton)
  • Cloverleaf School (Canton)
  • Clow Corporation (Coshocton)
  • Club Monarch (Cleveland)
  • Club Products (Cleveland)
  • Clyde Porcelain Steel Corporation (Clyde)
  • Clyffside Brewing Company (Cincinnati)
  • Coca Cola Bottling Works Company (Cincinnati)
  • Coe Manufacturing. (Painesville)
  • Cognis Corporation (Cincinnati)
  • Coit Road Plant (Cleveland)
  • Coke Plant (Youngstown)
  • Cole-Layer Trumble Company (Dayton)
  • Colin Gardner Paper Company (Middleton)
  • Collective Contract (Cincinnati)
  • College of Wooster (Wooster)
  • Colonial Salt Company (South Akron)
  • Columbia Axle Company (Cleveland)
  • Columbia Cement Corporation (Zanesville)
  • Columbia Chemical (Ironton)
  • Columbia Chemical Div (Barberton)
  • Columbia Hca Healthcare (Canton)
  • Columbia Ice Company (Cleveland)
  • Columbia Park Station (Cincinnati)
  • Columbia Power Company (Cincinnati)
  • Columbia Southern Cement (Barberton)
  • Columbia Southern Chemical Company (Barberton)
  • Columbia Southern Chemical Corporation (Canton)
  • Columbia Southern Personal Building (Canton)
  • Columbus & Southern Ohio Electric (Athens)
  • Columbus & Southern Ohio Electric Company (Columbus)
  • Columbus & Southern Ohio Electric Company (Conesville)
  • Columbus, Buckeye, Lake and Newark Traction Company (Hebron)
  • Columbus Aircraft Div. (Columbus)
  • Columbus and Iron and Steel Company (Columbus)
  • Columbus and Southern Ohio Electric (Moscow)
  • Columbus and Southern Ohio Electric Company (Coshocton)
  • Columbus and Southern Ohio Electric Company (Dayton)
  • Columbus Army Depot (Columbus)
  • Columbus Bolt Works (Columbus)
  • Columbus Buggy Company (Columbus)
  • Columbus Center Building (Columbus)
  • Columbus Central Railway Company (Columbus)
  • Columbus Coated Fabrics (Columbus)
  • Columbus Consolidated Street Railroad Company (Columbus)
  • Columbus Delaware and Marion Electric Company (Marion)
  • Columbus Dispatch Building (Columbus)
  • Columbus Edison Electric Light Company (Columbus)
  • Columbus Electric Light and Power Company (Columbus)
  • Columbus Electric Railway Company (Columbus)
  • Columbus General Depot (Columbus)
  • Columbus Iron and Steel Company (Columbus)
  • Columbus Iron and Steel Company (South Columbus)
  • Columbus London and Springfield Street Railway Company (Springfield)
  • Columbus Metrol Housg Auth (Columbus)
  • Columbus Metropolitan Housing Authority (Columbus)
  • Columbus Oil Cloth Company (Columbus)
  • Columbus Packing Company (Columbus)
  • Columbus Public Service Company (Columbus)
  • Columbus Py Power & Light Company (Columbus)
  • Columbus Railway Power and Light Company (Columbus)
  • Columbus Savings and Trust Company (Columbus)
  • Columbus Sewage Pumping Station (Columbus)
  • Columbus Shops (Columbus)
  • Columbus Show Case Company (Columbus)
  • Columbus Southern Power (Conesville)
  • Columbus St. School (Columbus)
  • Columbus State Hospital (Columbus)
  • Columbus State Institute (Columbus)
  • Columbus Steel Company (Columbus)
  • Columbus Stove (Columbus)
  • Columbus Street Railway Company (Columbus)
  • Columbus Union Oil Cloth Company (Columbus)
  • Columbus Warehouse (Columbus)
  • Columbus Woolen Manufacturing Company (Columbus)
  • Combustion Engineering (Miamisburg)
  • Comm Bookbinding Company (Cleveland)
  • Commercial Forging Company (Cleveland)
  • Commercial Insulation Company (Youngstown)
  • Commercial Intertech & Shearing (Warren)
  • Commercial Intertech & Shearing (Youngstown)
  • Commercial Milling Company (Cleveland)
  • Commercial Piping (Youngstown)
  • Commercial Shearing & Stamping Company (Youngstown)
  • Commonwealth and Southern Corp (Toronto)
  • Compco Metal Products (Youngstown)
  • Complete Insulation Service Inc. (Dayton)
  • Composite Medi-Facility (Fairborn)
  • Concrete Mason (Elyria)
  • Conesville Power Plant (Conesville)
  • Conrail (Bellefontaine)
  • Conrail (Youngstown)
  • Cons Enginiens (Cleveland)
  • Consol. Iron (Cleveland)
  • Consolidated Aluminum Corporation (Hannibal)
  • Consolidated Gas Company (Macedonia)
  • Consolidated St. Railway Company (Toledo)
  • Consolidated Telephone (Cincinnati)
  • Constellation Steel Mill (Cincinnati)
  • Consumers Brewing Company (Newark)
  • Cont. Bakeries (Cleveland)
  • Container Corp of America (Cincinnati)
  • Container Corporation (Cincinnati)
  • Container Corporation of America (Circleville)
  • Continental Aviation and Engineering Company (Toledo)
  • Continental Can (Columbus)
  • Continental Hospital (Westlake)
  • Continental Sugar Company (Fremont)
  • Convention Hall (Cincinnati)
  • Cooke Greenhouse (Cleveland)
  • Cook Well Strainer Company (Cincinnati)
  • Cooper Energy Serv (Springfield)
  • Copper Corner (Cleveland)
  • Copperly Corporation (Cleveland)
  • Copperweld (Shelby)
  • Copperweld Steel Company (Warren)
  • Corning Glass Works (Greenville)
  • Correct Air Corporation (Willoughby)
  • Corrigan-Mckenney Steel Company (Cleveland)
  • Corrigan Mckinney and Company (Cleveland)
  • Coryville Ice Company (Cincinnati)
  • Coshocton Div (Coshocton)
  • Coshocton Light and Heating Company (Coshocton)
  • Coshocton Strawpaper Company (Coshocton)
  • Cottage Creamery Company (Orrville)
  • Courier Journal (Louisville)
  • Cp Wright & Company At St. Ann’s Hospital (Cleveland)
  • Crane & Breed Casket Company (Cincinnati)
  • Crane Company (Alliance)
  • Crane Company (Canton)
  • Crawford Garage (Akron)
  • Crawford Power (Cincinnati)
  • Crawford Taylor, Branch of United States Baking Company (Mansfield)
  • Creedmore Cartridge Company (Barberton)
  • Crescent Building (Cincinnati)
  • Crescent Works (Cleveland)
  • Crest Hills Junior High School (Cincinnati)
  • Cromwell Steel Company (Lorain)
  • Crosley Div Avco Manufacturing and Company (Cincinnati)
  • Crosley Radio Corp (Cincinnati)
  • Cross Creek Coal Company (New Philadelphia)
  • Cross Pointe Paper (Dayton)
  • Crouse Clay Products Company (Akron)
  • Crowell Publishing Company (Springfield)
  • Crown Rubber Company (Fremont)
  • Crown Rubber Stamp (Cleveland)
  • Crucible Steel (Cleveland)
  • Crystal Ice and Storage Company (Youngstown)
  • Crystal Springs Ice Company (Cincinnati)
  • Crystal Tissue Company (Middleton)
  • Custodial Farm (Orient)
  • Custom Machine, Inc. (Cleveland)
  • Cuyahoga Greenhouse (Cleveland)
  • Cuyahoga Light Company (Cleveland)
  • Cuyahoga Soap Company (Cleveland)
  • Cuyahoga Valley Railway (Cleveland)
  • Cuyahoga Works (Cleveland)
  • Cyclops Corp Empire Reev (Mansfield)
D
  • D&H Machine (Canton)
  • D.A.P. (Jackson)
  • D.L. All Manufacturing Company (Columbus)
  • D. T. Williams Valve Company (Cincinnati)
  • Dairy Delivery Company (Cleveland)
  • Dairymens Milk Company (Cleveland)
  • Dale Products (Fremont)
  • Dana Corporation (Toledo)
  • Dangler Stove and Manufacturing Company (Cleveland)
  • Darling and Company (Cleveland)
  • Darling Company (Reading)
  • Darlson Fabrication & Welding Company (Lorain)
  • David Davies Packing Company (Columbus)
  • Davis-Besse Nuclear Power Plant (Oak Harbor)
  • Davis Bakery (Cleveland)
  • Davis Drywall & Insulation (Cleveland)
  • Davison Chemical Company (Alliance)
  • Davis Sewing Machine Company (Dayton)
  • Davis Tailoring Company (Cincinnati)
  • Dayco Plant (Dayton)
  • Dayton Airport – Midwest Steel Building (Dayton)
  • Dayton and Troy Electric Company (Dayton)
  • Dayton and Xenia Trac. Company (Dayton)
  • Dayton Arcade Company (Dayton)
  • Dayton Breweries Company (Dayton)
  • Dayton Builders Supply (Dayton)
  • Dayton Citizens Electric Company (Dayton)
  • Dayton Electric Light Company (Dayton)
  • Dayton Engineering Laboratories Company (Dayton)
  • Dayton Forge & Heat Treat (Dayton)
  • Dayton Forging (Dayton)
  • Dayton Ice Manufacturing Cold Storage Company (Dayton)
  • Dayton Lighting Company (Dayton)
  • Dayton Malleable Company (Dayton)
  • Dayton Malleable Iron Company (Ironton)
  • Dayton Masonic Temple (Dayton)
  • Dayton Mental Health Center (Dayton)
  • Dayton Metal Products Company (Dayton)
  • Dayton Power & Light (Manchester)
  • Dayton Power & Light Company (Dayton)
  • Dayton Power & Light Company (Miamisburg)
  • Dayton Power and Light Company (Aberdeen)
  • Dayton Power and Light Company (Cincinnati)
  • Dayton Press, Inc (Dayton)
  • Dayton Rubber Company (Marietta)
  • Dayton Rubber Manufacturing Company (Dayton)
  • Dayton Signal Depot (Dayton)
  • Dayton State Hospital (Dayton)
  • Dayton Steam Plant (Dayton)
  • Dayton Tire & Rubber Company (Dayton)
  • Dayton Union Railway Company (Dayton)
  • Dayton Walther Corp (Dayton)
  • Dayton Wright Airplane Company (Dayton)
  • Deaconess Hospital (Cincinnati)
  • Dean Electric Company (Elyria)
  • Dearing & Company (Youngstown)
  • Decatur Ind. Inc. (Celina)
  • Defense Construction Supply Center (Columbus)
  • Defense Plant Corp (Alliance)
  • Defense Plant Corp (Canton)
  • Defense Plant Corp; Plant C (Akron)
  • Defense Supply Agency (Columbus)
  • Defiance Box Company (Defiance)
  • Defiance Light and Power Company (Defiance)
  • Defiance Milk Products Company (Defiance)
  • Deforest Sheet and Tin Plate Company (Niles)
  • Delaware and Magnetic Spgs. Railway Company (Delaware)
  • Delco (Kettering)
  • Delco Manufacturing (Dayton)
  • Delco Moraine (Dayton)
  • Delco Products (Dayton)
  • Delphi Automotive System (Dayton)
  • Delphi Automotive System (Sandusky)
  • Delphi Automotive System (Vandalia)
  • Delphi Auto Systems Corporation (Dayton)
  • Delphi Auto Systems Corporation (Vandalia)
  • Delphi Chassis Systems (Dayton)
  • Delphi Chassis Systems (Kettering)
  • Delphi Chassis Systems (Sandusky)
  • Delphi Corporation (Columbus)
  • Delphi Hardware Plant (Columbus)
  • Delphi Interior Lighting (Columbus)
  • Delphi Packard Electric System (Warren)
  • Delphis Green Plant (Lexington)
  • Deluxe Check Printers (Cleveland)
  • Deming Company (Salem)
  • Dennison University (Granville)
  • Department of Highways (Middleton)
  • Department of Public Welfare, State of Ohio (Mansfield)
  • Department of Public Welfare State of Ohio (Cleveland)
  • Department Public Health and Welfare Div of City Hospital (Cleveland)
  • Detrex Chemical (Ashtabula)
  • Detroit & Toledo Railroad (Toledo)
  • Detroit Steel Corporation (Portsmouth)
  • Detroit Steel Mill (New Boston)
  • Detroit Steel Mill (Portsmouth)
  • Dewstoe Brainard Company (Cleveland)
  • Diamond Alkali (Ashtabula)
  • Diamond Alkali Company (Cleveland)
  • Diamond Alkali Company (Fairport Harbor)
  • Diamond Alkali Company (Painesville)
  • Diamond Alkali Research Center (Painesville)
  • Diamond Brick Company (Barberton)
  • Diamond Crystal Colonial Salt Divison (Akron)
  • Diamond Crystal Salt (Canton)
  • Diamond Crystal Salt Company (Akron)
  • Diamond Fabricator (Cleveland)
  • Diamond Fertilizer Company (Sandusky)
  • Diamond Magnesium Plant (Painesville)
  • Diamond Match Company (Barberton)
  • Diamond Power Specialty Company (Lancaster)
  • Diamond Purchasing Company (Lancaster)
  • Diamond Rubber Company (Akron)
  • Diamond Rubber Company (South Akron)
  • Diamond Shamrock Chemical (Cleveland)
  • Diamond Shamrock Chemical (Fairport Harbor)
  • Diamond Shamrock Chemical Company (Cincinnati)
  • Diamond Shamrock Chemical Company (Painesville)
  • Diamond Shamrock Corporation (Ashtabula)
  • Diebold Safe and Lock Company (Canton)
  • Diebolt Brewing Company (Cleveland)
  • Dilles Bottom Station (Dilles Bottom)
  • Dillies Bottom Power Station (Shadyside)
  • Div Ave. Pumping Station (Cleveland)
  • Division-Weiskopf (Cincinnati)
  • Divn- U S Steel Corp (Fairborn)
  • Dixie Terminal (Cincinnati)
  • Dobeckmun Company (Cleveland)
  • Doehler Jarvis Castings (Toledo)
  • Domestic Engineering Building Company (Dayton)
  • Donn Products (Westlake)
  • Doty Manufacturing Company (Dayton)
  • Dover Electric Light and Power (Dover)
  • Dover Forge and Iron Company (Canal Dover)
  • Dover Library (Canton)
  • Dover Light & Power Plant (Dover)
  • Dover Manufacturing Company (Dover)
  • Dover Municipal Light Plant (Dover)
  • Dover Works (Dover)
  • Dow Chemical (Beverly)
  • Dow Chemical (Haverhill)
  • Dow Chemical Company (Cleveland)
  • Dr. Hansen Clinic Building (Cleveland)
  • Dracket Company (Cincinnati)
  • Drackett Company (Reading)
  • Dravo (Marietta)
  • Dresser-Ideco (Columbus)
  • Dressograph Multigraph Corporation (Cleveland)
  • Drop Dies and Forging (Cleveland)
  • Drop Forge and Die (Cleveland)
  • Dues Warehouse (Cincinnati)
  • Duffy Constructions Company (Cleveland)
  • Dunbar – Sullivan (Cleveland)
  • Dunlap Hospital (Canton)
  • Dupont (Cleveland)
  • Dupont (Granville)
  • Dupont (Haverhill)
  • Dupont (Marietta)
  • Dupont (Newark)
  • Dupont Chemical (Ashtabula)
  • Dupont Chemical (Circleville)
  • Dupont Chemical (North Bend)
  • Durez Plastics and Chemicals Inc. Div (Kenton)
  • Durion Company, Inc (Dayton)
  • Durst Milling Company (Dayton)
  • Dust Control (Cleveland)
  • Dwg Cigar Factory (Lima)
  • Dye Company (Cleveland)
  • Dyer Company (Cleveland)
  • Dyson Joseph & Sons Inc (Cleveland)
E
  • E.C. Zukowski (Mentor)
  • E.F. Donleys Sons, Incorporated (Cleveland)
  • E.G. Smith Construction Products (Cambridge)
  • E. H. Dyer and Company (Cleveland)
  • E. I. Dupont De Nemours & Company (Cleveland)
  • E. I. Dupont De Nemours & Company (Huron)
  • E. I. Dupont De Nemours & Company (Toledo)
  • E.I. Dupont De Nemours and Company (Circleville)
  • E.I. Dupont De Nemours and Company (Cleveland)
  • E. Kitzel & Sons (Cleveland)
  • E.M.D. Components (Wickliffe)
  • Eagle Box Board and Paper Company (Maumee)
  • Eagle Ceramics (Cleveland)
  • Eagle Ceramics (Medina)
  • Eagle Coopenage Company (Fremont)
  • Eagle Iron and Steel Company (Ironton)
  • Eagle Pitcher Company (Cincinnati)
  • Eagle Woodenware Manufacturing (Fremont)
  • Earl E. Bright, Inc. (Columbus)
  • Earthmoving Div. (Hudson)
  • Easco (Youngstown)
  • Easco Aluminum (Girard)
  • Easco Aluminum (Niles)
  • East Broadway Plant (Toledo)
  • Eastern States Farmers (Huron)
  • East Evanston Elementary School (Cincinnati)
  • East Fairfield Church (Canton)
  • East Finishing Bay and Maintenance (Lorain)
  • Eastlake High School (Willoughby)
  • Eastlake Plant Unit 5 (Cleveland)
  • Eastlake Station (Eastlake)
  • East Liverpool Traction and Light Company (East Liverpool)
  • Eastman Kodak Company (Cincinnati)
  • East Ohio Gas Company (Canton)
  • East Ohio Gas Company (Cleveland)
  • East Side High School (Cincinnati)
  • East Works (Middleton)
  • Eaton-Yale (Cleveland)
  • Eaton Corporation (Cleveland)
  • Eberhard Manufacturing Company (Cleveland)
  • Eckert Packing Company (Troy)
  • Edgecliff Hi-Rise (Cincinnati)
  • Edgewater Plant (Cleveland)
  • Edgewater Station (Lorain)
  • Edgewater Works (Cleveland)
  • Ed Hart Company (Canton)
  • Edison and Illuminating Company (Tiffin)
  • Edison E Ill’G Company (Middleton)
  • Edward Ford Plate Glass Company (Toledo)
  • Edward R. Hart Company (Canton)
  • Edwards Building Company (Cincinnati)
  • Edw Ford Plate Glass Company (Rossford)
  • Egan Company (Cincinnati)
  • E G Grace (Lorain)
  • E I Du Pont De Nemours (Cleveland)
  • E Kahn’s Sons Company (Cincinnati)
  • Eldon Cronquist, Inc. (Ashtabula)
  • Elecric Autolite Company (Toledo)
  • Electric Auto Light Company (Cincinnati)
  • Electric Autolite Company (Evendale)
  • Electric Autolite Company (Fostoria)
  • Electric Auto Lite Company (Toledo)
  • Electric Furnace (Salem)
  • Electric General (Conesville)
  • Electric Generating Station (Fremont)
  • Electricians Union – Local 32 (Lima)
  • Electric Melting Service (Louisville)
  • Electric Metallurgical Company (Ashtabula)
  • Electric Prod. (Cleveland)
  • Electric Rubber Reclaiming Company (Barberton)
  • Electric Storage Battery Company (Cleveland)
  • Electric Weld (Cleveland)
  • Electro – Alloys Division (Elyria)
  • Electrolite Corp (Defiance)
  • Electro Metallurgical Company (Marietta)
  • Electrometallurgical Division (Marietta)
  • Electro Metalurgical Div Union Carbide and Carbon Corporation (Ashtabula)
  • Elforose Sugar Company (Carthage)
  • Elizabeth Gamble Deaconess Home Assoc (Cincinnati)
  • Eljer Plumbing (Salem)
  • Elkem Metals (Marietta)
  • Elliott Company (Springfield)
  • Ellsworth Coal Company (Cleveland)
  • El Matador Bar (Cincinnati)
  • Elmhurst School C-959 (Toledo)
  • Elpower Works (Shelby)
  • Elwood Myers Company (Springfield)
  • Elyria and Oberlin Electric Railway Company (Cleveland)
  • Elyria and Oberlin Electric Railway Company (Elyria)
  • Elyria Board of Education (Elyria)
  • Elyria Canning Company (Elyria)
  • Elyria City Board of Education (Elyria)
  • Elyria Foundry Company (Elyria)
  • Elyria Gas and Electric Company (Elyria)
  • Elyria Iron and Steel Company (Cleveland)
  • Elyria Iron and Steel Company (Elyria)
  • Elyria Machine Company (Mansfield)
  • Elyria Memorial Hospital (Elyria)
  • Emd Components (Ashland)
  • Emerald Materials (Cincinnati)
  • Emerson School (Dayton)
  • Emery Bleach Facilities (Cincinnati)
  • Emery Industries, Inc (Saint Bernard)
  • Emery Industries Inc (Cincinnati)
  • Emery Industries Inc (Ivorydale)
  • Emery Parking Deck (Cincinnati)
  • Emory Industries (Cincinnati)
  • Empire-Detroit (Mansfield)
  • Empire Detroit Steel (New Boston)
  • Empire Detroit Steel (Portsmouth)
  • Empire Detroit Steel Division (Mansfield)
  • Empire District Electric (Mansfield)
  • Empire Iron and Steel Company (Niles)
  • Empire Reeves New Building (Mansfield)
  • Empire Reeves Steel Corporation (Mansfield)
  • Empire Spring (Elyria)
  • Emtec (Elyria)
  • Enamel Products Company (Cleveland)
  • Endecon Corporation (Cleveland)
  • Endress Florist (New Philadelphia)
  • Enercon Systems, Inc. (Elyria)
  • Engineering Tool & Die (Cleveland)
  • Engle Air Craft Company (Niles)
  • English Woods (Cincinnati)
  • Envirotech Systems Inc (Middleton)
  • Erb Nasa (Cleveland)
  • Erection Shop (Columbus)
  • Erie Cable (Medina)
  • Erie City Iron Works (Piqua)
  • Erie Copper Works (Medina)
  • Erie Dyeing Company (Cleveland)
  • Erie Railroad (Cleveland)
  • Erie Railroad (Youngstown)
  • Erie Railroad Company (Cleveland)
  • Erie Tire and Rubber Company (Sandusky)
  • Erieview Corp (Cleveland)
  • Erieview Insulation (Cleveland)
  • Erieview Plaza (Cleveland)
  • Erie View Plaza (Cleveland)
  • Erving Paper Company (Lockland)
  • Erwine School (Canton)
  • Escast (Waterville)
  • E S Kelly (Springfield)
  • Essex Group, Inc. (Lancaster)
  • Essex Group Control (Lexington)
  • Essex House (Cincinnati)
  • Essex International (Lexington)
  • Essex International (Mansfield)
  • Essex Wire (Lexington)
  • Essex Wire (Mansfield)
  • Estate of Harold C. Schott (Evendale)
  • Euclid & 55 Team Track (Cleveland)
  • Euclid Div. (Cleveland)
  • Euclid Division (Hudson)
  • Euclid Glenville Hospital (Euclid)
  • Euclid Sewage Plant (Euclid)
  • Euclid Spring Company (Wickliffe)
  • Eugene Cook Greehouse (Cleveland)
  • Evangelical Deaconess Hospital (Cleveland)
  • Evans Savings & Loan (Canton)
  • Evendale Plant (Cincinnati)
  • Everbest Drywall (Dayton)
  • Ex-Cell-O Corp (Cleveland)
  • Excelsior Laundry Company (Cincinnati)
  • Excelsior Laundry Company (Dayton)
  • Excelsior Shoe Company (Portsmouth)
F
  • F.A. Pilgrim Ertusion (Youngstown)
  • F.E. Myers and Bro (Ashland)
  • F.L. Emmert Company (Cincinnati)
  • F.W. Means Company (Columbus)
  • F.W. Paulin (Cleveland)
  • F. Zimmerman Company (Cleveland)
  • Fabricated Metal Spec. (Bedford)
  • Fabricating Div Armco Steel Company (Middleton)
  • Factory Power Company (Cincinnati)
  • Fairfield Air Depot Patterson Field (Fairfield)
  • Fairfield Engineering Company (Marion)
  • Fairfield School For Boys (Lancaster)
  • Fairfield South Elementary School (Fairfield)
  • Fairmount St Pumping Station (Cleveland)
  • Fairview Park Hospital Nurses Home (Cleveland)
  • Falcon Iron and Nail Company (Niles)
  • Falcon Tin Plate Company (Canton)
  • Falls Rubber Company (Cuyahoga Falls)
  • Falor St. Plant (Akron)
  • F and R Lazarus and Company (Columbus)
  • Farish Roofing & Siding (Springfield)
  • Farrell-Cheek (Sandusky)
  • Fasson (Painesville)
  • Faultless Rubber Company (Ashland)
  • Favorite Stove Range Company (Piqua)
  • Fayette Memorial Hospital (Cincinnati)
  • F B Morgan Power Company (Cincinnati)
  • Federal Building (Cincinnati)
  • Federal Color Lab (Cincinnati)
  • Federal Creosoting Company (Toledo)
  • Federal Glass Company (Columbus)
  • Federal Knitting Mills Company (Cleveland)
  • Federal Office Building (Cincinnati)
  • Federal Office Building (Cleveland)
  • Federal Office Building (Toledo)
  • Federal Paper Board (Steubenville)
  • Federal Reserve (Cincinnati)
  • Federal Reserve Bank (Cleveland)
  • Federal Steel (Cleveland)
  • Feeble Minded Youth (Columbus)
  • Feeble Minded Youth (Orient)
  • F E I Inc (Cleveland)
  • Feldman Bros. Company (Cleveland)
  • Feroit Bros. (Akron)
  • Ferro Corp (Elyria)
  • Ferro Corp (Perrysburg)
  • Ferro Corporation (Cleveland)
  • Ferro Corporation (Zanesville)
  • Ferrodyne (Cleveland)
  • Ferro Engineering (Cleveland)
  • Ferro Machine and Finery Company (Cleveland)
  • Ferron Concrete Construction Company (Cincinnati)
  • Ferroslag (Lorain)
  • F Gray Company (Piqua)
  • Fiberglass Tower (Toledo)
  • Field W. Swezey (Fostoria)
  • Fireproof Block Company (Columbus)
  • Firestone Synthetic Rubber & Latex (Canton)
  • Firestone Tire & Rubber Company (Akron)
  • Firestone Tire & Rubber Company (Canton)
  • Firestone Tire and Rubber Company (South Akron)
  • First Energy (Lorain)
  • Firstenergy Corporation (Ashtabula)
  • Firstenergy Corporation (Cleveland)
  • Firstenergy Corporation (Geneva)
  • Firstenergy Nuc Operating (Oak Harbor)
  • First National Bank (Canton)
  • First National Bank Building (Cincinnati)
  • First U.P. Church (Canton)
  • Fischer Industries Inc (Cincinnati)
  • Fisher Body (Elyria)
  • Fisher Body and Casting (Cleveland)
  • Fisher Body Company (Norwood)
  • Fisher Body Corporation (Cleveland)
  • Fisher Body Div Gmc (Cleveland)
  • Fisher Body Div Gmc (Mansfield)
  • Fisher Body Division of General Motors (Euclid)
  • Fisher Body Div of G.M. Corp (Fremont)
  • Fisher Food (Elyria)
  • Fitzpatrick and Hoepfner (Columbus)
  • Fitzsimons Company (Youngstown)
  • Fleischmann Company (Cincinnati)
  • Flight Propulsion Laboratory Dept. (Cincinnati)
  • Flintkote (Ravenna)
  • Flow A Matic (Columbus)
  • Floyd Booth Company (Youngstown)
  • Fluor Corp (Toledo)
  • Fluor Incorporated (Haverhill)
  • Fob Plenums (Cincinnati)
  • Fomoco (Cleveland)
  • Fomoco Duct Insulation (Cincinnati)
  • Food Services (Cleveland)
  • Foos Manufacturing Company (Springfield)
  • Foote Mineral (Steubenville)
  • Ford, Cleveland Foundry (Cleveland)
  • Ford-Canton Forge Plant (Canton)
  • Ford Canton Forge Plant (Canton)
  • Ford Foundry (Brookpark)
  • Ford Foundry (Cleveland)
  • Ford Foundry (Lorain)
  • Ford Foundry (Parma)
  • Ford Lorain Assembly Plant (Lorain)
  • Ford Motor (Lima)
  • Ford Motor Brookpark (Brookpark)
  • Ford Motor Company (Brookpark)
  • Ford Motor Company (Canton)
  • Ford Motor Company (Cincinnati)
  • Ford Motor Company (Cleveland)
  • Ford Motor Company (Fostoria)
  • Ford Motor Company (Lorain)
  • Ford Motor Company (Sandusky)
  • Ford Plate Glass Company (Toledo)
  • Forest City Brewing Company (Toledo)
  • Forest City Foundry (Cleveland)
  • Forest Hills School (Cincinnati)
  • Forest Park Middle School (Cincinnati)
  • Forge Products (Cleveland)
  • Form-A-Tool (Cleveland)
  • Formerly National Stove Company (Lorain)
  • Formica Corporation (Cincinnati)
  • Formica Corporation (Evendale)
  • Formica Insulation Company (Cincinnati)
  • Formica Press (Reading)
  • Forrest Towel Supply Company (Columbus)
  • Fort Hamilton Hospital (Fremont)
  • Forum Health Holding Company (Youngstown)
  • Foseco, Inc. (Cleveland)
  • Foseco Chemical Company (Cleveland)
  • Foseco Corporation (Brookpark)
  • Foseco Inc (Berea)
  • Fostoria Electric Light and Power Company (Fostoria)
  • Fostoria Foundry (Fostoria)
  • Foundry Equipment Company (Cleveland)
  • Fox Paper Company (Cincinnati)
  • Fox Paper Company (Lockland)
  • Fox River Paper Company (Urbana)
  • Fox Valley Corporation (Urbana)
  • France Manufacturing (Westlake)
  • Frank Billings (Cleveland)
  • Frank Hill Smith
  • Franklin Enterprises, Inc. (Cincinnati)
  • Franklin Plating (Columbus)
  • Franklin School (Canton)
  • Frasch Process Soda Company (Cleveland)
  • Fred Christen & Sons Company (Toledo)
  • Freiberg Workum (Cincinnati)
  • Fremont Gas and Electric Light Company (Fremont)
  • Fremont Progress Airport (Fremont)
  • French Bauer, Inc. (Cincinnati)
  • French Bros-Bawer Company (Cincinnati)
  • Freyn Brothers, Inc. (Napoleon)
  • Frigidaire Corporation (Moraine)
  • Frigidaire Division (Dayton)
  • Fruehauf Trailer (Avon Lake)
  • F Schumacher (Akron)
  • Fulton Foundry (Cleveland)
  • Fusion Inc. (Willoughby)
G
  • G&W Industries (Cleveland)
  • G.E. (Avon)
  • G.E. (Bucyrus)
  • G.E. (Cleveland)
  • G.E. (Louisville)
  • G.E. (Ravenna)
  • G.E. (Warren)
  • G.E. (Willoughby)
  • G. E. Hull (Marietta)
  • G.H.R. Foundry (Dayton)
  • G.L. Larely Construction (Columbus)
  • G.S. Equipment (Cleveland)
  • G. Wilder Mulh Bwg. Company (Pomeroy)
  • Galion Community Hospital (Galion)
  • Galion Lumber Company (Galion)
  • Gallery of Fine Arts (Columbus)
  • Gallipolis State Hospital (Gallipolis)
  • Gambrinous Plant. (Canton)
  • Garaway High School (Canton)
  • Garden Center of Greater Cleveland (Cleveland)
  • Gardner Board & Carton (Middleton)
  • Gardner Board and Carton Company (Cincinnati)
  • Gardner Paper Board Company (Middleton)
  • Gardner Richardson Company (Cleveland)
  • Garfield High School (Cleveland)
  • Garfield School (Canton)
  • Garfield School (Portsmouth)
  • Garfield Tower (Cincinnati)
  • Garford Manufacturing Company (Elyria)
  • Garford Motor Truck Company (Lima)
  • Garland-Haswell-Reutschler Foundry Company (Dayton)
  • Garlock – Frazee Laundry Company (Cleveland)
  • Garrett Cromwell Eng Company (Cleveland)
  • Garry Iron and Steel Company (Youngstown)
  • Gas Atmospheres Inc (Cleveland)
  • Gas Trubine Laboratory (Perry)
  • Gas Turbine Station (Columbus)
  • Gavin Power Plant (Cheshire)
  • G C Kuhlman Car Company (Cleveland)
  • Ge Chemical Products Plant (Cleveland)
  • Ge Cleveland Wire Plant (Cleveland)
  • Ge Evendale (Evendale)
  • General Aluminum (Cleveland)
  • General American Transportation Corporation (Masury)
  • General Battery Corporation (Cleveland)
  • General Chemical Corporation (Cleveland)
  • General Chemical Div Allied Chemical and Dye (Cleveland)
  • General Dry Batteries, Inc. (Cleveland)
  • General Dry Battery (Cleveland)
  • General Dynamics (Lima)
  • General Electric (Canton)
  • General Electric (Columbus)
  • General Electric (Dover)
  • General Electric (Evendale)
  • General Electric (Niles)
  • General Electric Company (Cincinnati)
  • General Electric Company (Circleville)
  • General Electric Company (Cleveland)
  • General Electric Company (Coshocton)
  • General Electric Company (East Cleveland)
  • General Electric Company (Tiffin)
  • General Electric Company (Toledo)
  • General Extrusions (Youngstown)
  • General Fireproofing Company (Youngstown)
  • General Foods Corporation (Akron)
  • General Hospital (Cincinnati)
  • General Industries Company (Elyria)
  • General Insurance Company (Cincinnati)
  • General James M. Gavin Plant (Cheshire)
  • General Mills, Inc. (Lancaster)
  • General Mills Company (Toledo)
  • General Motors (Cleveland)
  • General Motors (Hudson)
  • General Motors (Vandalia)
  • General Motors Corporation (Canton)
  • General Motors Corporation (Columbus)
  • General Motors Corporation (Dayton)
  • General Motors Corporation (Euclid)
  • General Motors Corporation (Mansfield)
  • General Motors Corporation (Norwood)
  • General Motors Corporation (Toledo)
  • General Motors Corporation (Warren)
  • General Motors Delco Air Div (Moraine)
  • General Motors Foundry (Defiance)
  • General Motors Island Manufacturing (Dayton)
  • General Protestant Orphan Home (Cincinnati)
  • General Refractories (Warren)
  • General Tire & Rubber (Toledo)
  • General Tire & Rubber Company (Akron)
  • General Tire & Rubber Company (Ashtabula)
  • General Tire Chemial Plant (Ashtabula)
  • General Tire Research (Canton)
  • General Welding Supply (Cleveland)
  • Generating Station (Cleveland)
  • Geneva Metal Wheel Company (Geneva)
  • Geneve Memorial Hospital (Geneva)
  • General Fire Proofing (Youngstown)
  • Geo. J. Renner, Jr. (Youngstown)
  • Geo. J Renner Brewing Company (Akron)
  • Geo. Porter Heat Treat (Cleveland)
  • Geo. W. Dittman (Cincinnati)
  • Geo. Wiedemann Brewing Company (Cincinnati)
  • George B. Sennett (Youngstown)
  • George E. Milligan (Lorain)
  • George E. Milligan Office (Elyria)
  • George Heekin Junior Residence (Cincinnati)
  • George Ingel Construction (Columbus)
  • George J Renner (Youngstown)
  • George O. Cromwell (Toledo)
  • George O’Neil New Boston Coke Corporation (New Boston)
  • George W. Cottrell & Son (Toronto)
  • George Washington Company (Cleveland)
  • Georgia Pacific (Toledo)
  • Georgia Pacific Corporation (Columbus)
  • German Methodist Asphan Asylum (Berea)
  • Gibson Art Building (Cincinnati)
  • Gibsonburg Lime Products Company (Gibsonburg)
  • Gibsonbury Lime (Gibsonburg)
  • Gidding Jenny Barkhardt (Cincinnati)
  • Gilbert Elec. Supply Company (Sandusky)
  • Gingiss Formal Wear (Cincinnati)
  • Girard Iron Company (Girard)
  • Glass-Edsell Paper Company (Delaware)
  • Glass Cote Products Div (Cleveland)
  • Glastic Corp (Cleveland)
  • Glatfelter (Chillicothe)
  • Glendale Plant Siding (Toledo)
  • Glen L. Martin Company (Painesville)
  • Glen L Martin Chemical Plant (Ashtabula)
  • Glenn L. Martin Company (East Cleveland)
  • Glenn Smith Company (Cleveland)
  • Glidhill Machinery (Galion)
  • Globe Corporation (Cincinnati)
  • Globe Foundry (Dayton)
  • Globe Soap Company (Saint Bernard)
  • Globe Steel Abrasive (Mansfield)
  • Globe Wernicke Company (Norwood)
  • GMC (Columbus)
  • GMC Chevrolet (Cleveland)
  • GMC Diesel Engine Div (Cleveland)
  • GM Corporation (Warren)
  • GM Delphi Chassis (Dayton)
  • GM Inland Manufacturing (Dayton)
  • Goebel Brewing Company (Toledo)
  • Goodall Company (Cincinnati)
  • Goodrich Chemical Company (Akron)
  • Goodrich Chemical Company (Avon Lake)
  • Goodrich Experimental Station (Avon Lake)
  • Goodrich Gulf Chemical Company (Avon Lake)
  • Goodrich Research Center (Brecksville)
  • Good Samaritan Hosp. (Zanesville)
  • Good Samaritan Hospital (Cincinnati)
  • Good Samaritan Hospital (Dayton)
  • Goodyear Aerospace (Canton)
  • Goodyear Aircraft Company (Canton)
  • Goodyear Aircraft Plant (Akron)
  • Goodyear Building 54 (Cleveland)
  • Goodyear Tire & Rubber Company (Akron)
  • Goodyear Tire & Rubber Company (Canton)
  • Goodyear Tire (Berea)
  • Goodyear Tire (Brookpark)
  • Gordon and Maxwell Company (Fremont)
  • Gorell School (Canton)
  • Gorge Power House (Akron)
  • Gorman – Lavelle Corporation (Cleveland)
  • Gorman Rupp Company (Mansfield)
  • Gould, Inc. (Cleveland)
  • Grabler Manufacturing (Cleveland)
  • Grabler Manufacturing (Tiffin)
  • Grace Evangelical Church (Canton)
  • Granville Technical Center (Granville)
  • Grasselli Chemical Company (Niles)
  • Grasselli Chemical Department (Cleveland)
  • Gravel Bank Powerhouse (Marietta)
  • Greater Cleveland Garden Ctr (Cleveland)
  • Great Lake Coal Mining Company (Columbus)
  • Great Lake Coal Mining Company (Pomeroy)
  • Great Lakes Carbon (Marion)
  • Great Lakes Engineering Works Shipyard (Ashtabula)
  • Great Lakes Flour (Cleveland)
  • Great Lake Sugar Company (Fremont)
  • Great Southern Hotel (Columbus)
  • Green A P Refractories of Ohio (Canton)
  • Green Ball Bearing (Cleveland)
  • Green Jr High School (Canton)
  • Greenville Electric Light and Power Company (Greenville)
  • Greer Steel Company (Dover)
  • Grinnel Building (Cincinnati)
  • Grinnell Corporation (Warren)
  • Griscom Russell Company (Massillon)
  • Ground Round (Cleveland)
  • Grover Musical (Cleveland)
  • Gulf Oil (Cleveland)
  • Gulf Oil Company (Cincinnati)
  • Gulf Oil Corporation (Cleves)
  • Gulf Oil Refinery (Cincinnati)
  • Gulf Oil Refinery (Hooven)
  • Gulf Oil Refinery (Toledo)
  • Gulf Refining Company (Cleves)
  • Gulf Refining Company (Toledo)
  • Gummed Products Company (Troy)
  • Gund Brewing Company (Cleveland)
  • Gwinn Milling Company (Columbus)
  • Gwynne Building (Cincinnati)
H
  • H&M Metal (Cuyahoga Falls)
  • H. & S. Pogue Deptartment Store (Cincinnati)
  • H. A. Preston School (Canton)
  • H.B. Camp Company (Akron)
  • H. B. Milwine and Company (Toledo)
  • H. D. Beach Company (Coshocton)
  • H. H. Meyer Packing Company (Cincinnati)
  • H.J. Heinz Company (Bowling Green)
  • H. J. Heinz Company (Fremont)
  • H.J. Osterfield Company (Dayton)
  • H.K. Ferguson (Avon)
  • H.K. Furguson Company (Painesville)
  • H.M. Crites Milling Company (Circleville)
  • Hadfield Penfield Steel Company (Bucyrus)
  • Hadghorn Construction (Akron)
  • Halex Corporation (Cleveland)
  • Halex Division (Bedford)
  • Hallmark Cards (Cincinnati)
  • Hal Lynn (Cleveland)
  • Halora Corporation (Cleveland)
  • Haltenback and Stephens (Cleveland)
  • Hamilton (Fremont)
  • Hamilton – Otto Coke Company (Fremont)
  • Hamilton Coke and Iron Company (Fremont)
  • Hamilton Company Training (Cincinnati)
  • Hamilton County Commissioners (Cincinnati)
  • Hamilton County Court House (Cincinnati)
  • Hamilton County Home (Cincinnati)
  • Hamilton Dept. of Public Utilities (Fremont)
  • Hamilton Electric Dept (Fremont)
  • Hamilton Furnace Company (Fremont)
  • Hamilton Gas and El Company (Fremont)
  • Hamilton I and S Company (Fremont)
  • Hamilton Ice and Cold Storage Company (Fremont)
  • Hamilton Milk Company (Fremont)
  • Hamilton Stores (Fremont)
  • Hammond Acoustical Company (Canton)
  • H and S Pogue Company (Cincinnati)
  • Harbison-Walker (Portsmouth)
  • Hardesty Milling Company (Canal Dover)
  • Harkness and Cowing (Cincinnati)
  • Harkness and Cowing Company (Saint Bernard)
  • Harkness Cowing Company (Cincinnati)
  • Harring Hall Marvin Company (Fremont)
  • Harrison Radiator (Dayton)
  • Harrison Radiator (Moraine)
  • Harrison School (Canton)
  • Harrop Ceramic Service Company (Columbus)
  • Harshaw Chemical (Solon)
  • Harshaw Chemical Company (Cleveland)
  • Harshaw Chemical Company (Elyria)
  • Harshaw Fuller and Goodwin Company (Cleveland)
  • Harshaw Fuller and Goodwin Company (Elyria)
  • Harter Milling Company (Fostoria)
  • Hartford Junior High School (Canton)
  • Hartje Brothers Paper Company (Toronto)
  • Hartje Brothers Paper Manufacturings (Steubenville)
  • Hartman Building (Columbus)
  • Hartman Electrical Manufacturing Company (Mansfield)
  • Hartzell Industries, Inc. (Piqua)
  • Harvey Brothers (Cleveland)
  • Hatcher Brothers Construction (Mingo Junction)
  • Hatfield Electric (Lorain)
  • Hawthorden States Hospital (Macedonia)
  • Hawthornden State Hospital (Cleveland)
  • Hawthornden State Hospital (Macedonia)
  • Hawthorne Valley Club (Bedford)
  • Hawthorn Hospital (Cleveland)
  • Hayden Plant (Columbus)
  • Hayes Albion (Tiffin)
  • Heating Plant (Barberton)
  • Hedalloy Die (Cleveland)
  • Heekin Can Company (Norwood)
  • Heffner Milling Company (Circleville)
  • Helfrich Die Cast (Canton)
  • Hellenic Cultural Center (Canton)
  • Hendershot & Smith Inc. (Wickliffe)
  • Hendershot (Ironton)
  • Henkel of America Inc (Cincinnati)
  • Henkes Auto Electric (Lorain)
  • Henrite Products (Ironton)
  • Henry Furnance. and Foundrailway Company (Medina)
  • Henry Holtzman and Sons Company (Columbus)
  • Henry P. Thompson (Cincinnati)
  • Heran Court Beverage and Ice Company (Cincinnati)
  • Herancourt Brewing Company (Cincinnati)
  • Hercules Engines, Incorporated (Wooster)
  • Hercules Motor Corporation (Canton)
  • Herron Testing Lab (Cleveland)
  • Hess and Clark (Canton)
  • Hess Spring and Axle Company (Carthage)
  • Hetz Construction Company (Warren)
  • Hewitt Soap Company (Dayton)
  • Heydon Chemical Corporation (Ironton)
  • H H Meyer Refrigeration Packing Company (Cincinnati)
  • H H Meyers Packing Company (Cincinnati)
  • Higbee Company (Cleveland)
  • Highland View Hospital (Cleveland)
  • Hill Clutch Company (Cleveland)
  • Hill Hardware (Fairport Harbor)
  • Hill Manufacturing Company (Jackson)
  • Hillshire Farm/Kahn\\\’S (Cincinnati)
  • Hillside Junior High School (Cleveland)
  • Hilton Davis Chemical Company (Cincinnati)
  • Hilton Davis Chemical Company (Toledo)
  • Hilton Inn (Cincinnati)
  • Hinckley Greenhouse (Cleveland)
  • Hinde and Dauch Paper Company (Cleveland)
  • Hinde and Dauch Paper Company (Sandusky)
  • Hines Flask Company (Cleveland)
  • Hinklin Awning Company (Marion)
  • His Ministry Church (Solon)
  • H Miller (Cincinnati)
  • Hobart Bros. (Troy)
  • Hobart Manufacturing Company (Troy)
  • Hobert Corp (Troy)
  • Hoffman – La Roche (Cambridge)
  • Hoffman Bronze (Cleveland)
  • Holland Bread Company (Dayton)
  • Holland Furnace (Ironton)
  • Hollenden Hotel (Cleveland)
  • Holmes East High School (Canton)
  • Holmes Hospital (Evendale)
  • Holsman (Cleveland)
  • Holy Family Catholic Church (Parma)
  • Home Insulation Company (Youngstown)
  • Home Lighting Heat and Power Company (Springfield)
  • Home Telephone Company (Middleton)
  • Hooker Electrochemical Company (Kenton)
  • Hootman Aluminum Foundry (Bryan)
  • Hoover (Canton)
  • Hoover Owens Rentschler Company (Fremont)
  • Hornell Ice and Cold Storage Company (Marion)
  • Horsburgh – Scott (Cleveland)
  • Horvitz Company (Cleveland)
  • Hospitality Motor Inn (Cincinnati)
  • Hotel Gibson (Cincinnati)
  • Hotel Metropole (Cincinnati)
  • House of Loretta (Canton)
  • House of Pierre (Cincinnati)
  • Houston Hay Al and Sons (Coshocton)
  • Howard Paper Company (Urbana)
  • Howard Paper Mills (Dayton)
  • Hudepohl Brewing Company (Cincinnati)
  • Hudgeons Products (Cleveland)
  • Huebner Toledo Breweries Company (Toledo)
  • Huenefeld Company (Cincinnati)
  • Huffman Conklin Company (Columbus)
  • Hughes-Bechtol Incorporated (Dayton)
  • Hughes and Keenan (Mansfield)
  • Hughes Bechtol Incorporated (Manchester)
  • Hughes High School (Cincinnati)
  • Hughes Hospital (Fremont)
  • Hughes Memorial Hosp (Fremont)
  • Hunde Dauch Paper Company (Sandusky)
  • Hunt Foods and Industries (Perrysburg)
  • Huntsmen Goodson Chemical Corp (Troy)
  • Hunt Wesson Foods (Perrysburg)
  • Hupp Corporation (Canton)
  • Huron Lime Company (Huron)
  • Huron Road Hospital (East Cleveland)
  • Huseman Snack Food Company (Cincinnati)
  • Hutchins Power Plant (Miamisburg)
  • Hyde Park Bank (Cincinnati)
  • Hydraulic Pressed Steel Company (Cleveland)
  • Hydro-Blast Corporation (Cleveland)
  • Hydro-Blast Corporation (Elyria)
  • Hydro-Blast Corporation (Toledo)
  • Hydrocarbon Research, Inc. (Mingo Junction)
  • Hygienic Dental Job (Canton)
I
  • I. D. Smead and Company (Toledo)
  • I. Schuman (Bedford)
  • Ideal Milk Company (Portsmouth)
  • Ideal Tire and Rubber Company (Cleveland)
  • Illuminating Company (Avon Lake)
  • Immerman Crafts (Solon)
  • Immerman Creative (Solon)
  • Immerman Enamels (Solon)
  • Imperial Clevite (Cleveland)
  • Incinerator Plant (Cincinnati)
  • Independent Ice Company (Cleveland)
  • Independent Towel Supply (Cleveland)
  • Indiana Columbus and Eastern Traction Company (Hebron)
  • Indiana Michigan Electric Company (Cincinnati)
  • Indianola Heating and Lighting Company (Columbus)
  • Indianola Ice Company (Columbus)
  • Indian Refining Company (Cincinnati)
  • Indpls. Col. and Southrn Tract Company (Columbus)
  • Industrial Aluminum (Elyria)
  • Industrial Artcraft (Akron)
  • Industrial Fabricating Job (Canton)
  • Industrial Fibre Corporation (Cleveland)
  • Industrial Furnace Supply Company (Columbus)
  • Industrial Ovens, Inc. (Cleveland)
  • Industrial Power Piping (Berea)
  • Industrial Rayon Corp (Cleveland)
  • Industrial Rayon Corporation (Painesville)
  • Indy Power/Light Cleve. Thermal Energy (Cleveland)
  • Ineos (Addyston)
  • Ineos (Lima)
  • Ingalls Building (Cincinnati)
  • Ingersol-Humphries (Mansfield)
  • Inland Lamp Department of Gen Electric Company (Niles)
  • Inland Manufacturing Company (Dayton)
  • Inland Refractories Company (Cleveland)
  • Inland Steel (Columbus)
  • Institute For Feeble Minded (Orient)
  • Institutional Industries (Cincinnati)
  • Institution For Feeble Minded (Columbus)
  • Insulation Contracting & Supply Company (Cincinnati)
  • Insulco, Inc. (Lima)
  • Intercon Systems (Cleveland)
  • Interlake Iron Corp (Toledo)
  • Interlake Iron Corporation (Beverly)
  • Interlake Steamship (Cleveland)
  • Interlake Steel Corporation (Toledo)
  • International Harvester Company (Akron)
  • International Harvester Company (Springfield)
  • International Paper Company (Dayton)
  • International Paper Company (Fremont)
  • International Paper Company (Wooster)
  • Internationl Salt Company (Cleveland)
  • Interstate Bakeries (Cincinnati)
  • Interstate Eng. Company (Cleveland)
  • Interstate Folding Box Board Company (Miamisburg)
  • Investment Casting (Waterville)
  • Irc Fibers Company (Painesville)
  • I R C Fibers Company (Painesville)
  • Irnet (Hannibal)
  • Ironton Coke Corporation (Ironton)
  • Ironton Fire Brick (Ironton)
  • Ironton High School (Ironton)
  • Ironton Iron (Ironton)
  • Ironton Port Cement Company (Ironton)
  • Irwin School (Canton)
  • Isaac Harter Company (Fostoria)
  • Isaac Harter Company (Toledo)
  • Ishpeming (Lorain)
  • I T C (Cincinnati)
  • Ivorydale Factory (Cincinnati)
  • Ivory Dale Plant (Cincinnati)
  • Ivory Dale Plant (Saint Bernard)
J
  • J & D Welding (Cleveland)
  • J & L (Warren)
  • J&L Steel (Canton)
  • J&L Steel (Youngstown)
  • J&L Steel Corp (Cleveland)
  • J & L Steel Corporation (Cleveland)
  • J-D Welding (Cleveland)
  • J.A. Fay and Company (Cincinnati)
  • J.A. Fay and Egan Company (Cincinnati)
  • J. B. Campbell Manufacturing Company (Carthage)
  • J. B. Jones and Company (Steubenville)
  • J.B. Schaaf (Cincinnati)
  • J.C. Groendyke Company (Miamisburg)
  • J.C. Heintz (Cleveland)
  • J.C. Heintz Company (Akron)
  • J. C. Penney (Canton)
  • J.C. Penney Building (Lima)
  • J.D. Fowler (Youngstown)
  • J. F. Randall (Cleveland)
  • J.H. Day Company (Cincinnati)
  • J.H. Mclain Company (Canton)
  • J. H. Tangeman and Company (Lockland)
  • J.J. Foundry (Ironton)
  • J. Kirschenbaum (Cleveland)
  • J.M. Cousins (Mansfield)
  • J.M. Gavin Power Plant In Plant (Cheshire)
  • J.M. Smucker Apple Butter Company (Orrville)
  • J.M. Stuart Station (Dayton)
  • J.M. Wall Company (Cleveland)
  • J.P. Wolf (Dayton)
  • J. Shillito (Cincinnati)
  • J. Smith & Sons Brewing Company (Youngstown)
  • J.W. Geopfert (Akron)
  • Jack Heintz Inc. (Bedford)
  • Jack Herb Florist (Cincinnati)
  • Jack Higgins (Twinsburg)
  • Jackson Elementary School (Maumee)
  • Jackson Iron & Steel (Jackson)
  • Jackson J and S. Company (Jackson)
  • Jackson Pike Wastewater Treatment Plant (Columbus)
  • J A Edison (Piqua)
  • James C. Heintz (Akron)
  • James C. Oren (Dayton)
  • James Campbell Smith, Incorporated (Willoughby)
  • James E Thomas (Newark)
  • James Leffel and Company (Springfield)
  • Janitrol Aircraft Division (Columbus)
  • Jarecki Chemical Company (Saint Bernard)
  • Jarvis Division (Toledo)
  • J Burton Ayers (Lorain)
  • Jeep Plant (Toledo)
  • Jefferson – Smurfit Corp (Middleton)
  • Jefferson City Burial Vault Works (Steubenville)
  • Jefferson Iron Works (Steubenville)
  • Jefferson Smurfit Corp CCA (Circleville)
  • Jeffrey Manufacturing Company (Columbus)
  • J E Upson (Cleveland)
  • Jewett Car Go. (Newark)
  • Jewish Hospital (Cincinnati)
  • Jf Williams Milling Company (Columbus)
  • Jim Clay Refractory (Sebring)
  • Jim Cursey (Cleveland)
  • J L Ballinger (Cincinnati)
  • J M Smucker Company (Canton)
  • J M Stuart Electric Gen Station (Aberdeen)
  • J M Stuart Station (Aberdeen)
  • John A Stewart Electric Company (Cincinnati)
  • John B. Shepler (Toledo)
  • John C. Boehm (Cleveland)
  • John Carroll University (Cleveland)
  • John Gavin Power Plant (Gallipolis)
  • John Kleri (Cleveland)
  • John Knapp Sons Foundry (Akron)
  • Johns – Manville (Defiance)
  • Johns-Manville Corporation (Alliance)
  • Johns Manville (Waterville)
  • Johns Manville Product Corporation (Cleveland)
  • Johnson Company (Cleveland)
  • Johnston and Jennings Company (Cleveland)
  • John T Hutchinson (Cleveland)
  • Jonathan Clark and Sons Company (Columbus)
  • Jones & Laughlin Steel Company (Campbell)
  • Jones & Laughlin Steel Corporation (Cleveland)
  • Jones & Laughlin Steel Corporation (Louisville)
  • Jones and Laughlin (Youngstown)
  • Jones and Laughlin Steel Company (Canton)
  • Jones and Laughlin Steel Company (Cleveland)
  • Jones and Laughlin Steel Company (Struthers)
  • Jones Brothers Electric Company (Cincinnati)
  • Jordan Mills Inc. (Columbus)
  • Jordan Welding (Cleveland)
  • Jos. J Gest (Cincinnati)
  • Joseph & Feiss Company (Cleveland)
  • Joseph Campbell Company (Napoleon)
  • Joseph Dyson and Sons (Cleveland)
  • Joy Manufacturing (New Philadelphia)
  • Julian and Kokinge Company (Cincinnati)
  • Junction Iron and Steel Company (Mingo Junction)
  • Jung Brewing Company (Cincinnati)
  • Junk Yard (Columbus)
K
  • Kahns Livershop Drain (Cincinnati)
  • Kahn’s & Company (Cincinnati)
  • Kahn’s Old Pork Boning Room (Cincinnati)
  • Kaighin and Hughes, Inc. (Toledo)
  • Kaiser Agriculture Chemical Company (Cincinnati)
  • Kaiser Agriculture Chemical Company (North Bend)
  • Kaiser Aluminum & Chemical Corp (Newark)
  • Kaiser Aluminum (Heath)
  • Kaiser Jeep Corp (Toledo)
  • Kaiser Steel (Newark)
  • Kal Kan Foods Inc (Columbus)
  • Kal Kan Pet Care (Columbus)
  • Kaltenbach and Griess (Cleveland)
  • Kanigen Plant (Masury)
  • Kao Jergens (Cincinnati)
  • Kasper Foundry Company (Elyria)
  • Kaufman Company Larry L (Toledo)
  • Kaul Clay Company (Toronto)
  • Kay Lee Constr Company (Columbus)
  • Keagler Brick Company (Steubenville)
  • Keagler Brick Company (Toronto)
  • Keebler Biscuit Company (Cincinnati)
  • Keene Corporation (Cincinnati)
  • Keever Starch Company (South Columbus)
  • Kelley Steel Erec. (Bedford)
  • Kelly Nail and Iron Company (Ironton)
  • Kelly Springfield Road Roller Company (Springfield)
  • Kelly Springfield Tire and Rubber Company (Akron)
  • Kelso Wagner Company (Dayton)
  • Kemet Corporation (Cleveland)
  • Kemet Dept Linde Company (Cleveland)
  • Kemmons Wilson (Cincinnati)
  • Kennametal Company (Willoughby)
  • Kenner Products (Cincinnati)
  • Kenton Water Works (Kenton)
  • Kent State University (Canton)
  • Kessler Company (Cleveland)
  • Kettering Medical Center (Dayton)
  • Kettering Medical Center Joe Parks (Kettering)
  • Keystone Constn Company (Fremont)
  • Kielco (Rocky River)
  • Kifer Tool (Cleveland)
  • Kilbourne and Jacobs Manufacturing Company (Columbus)
  • Killen Generating Station (Manchester)
  • Killian Manufacturing Company (Akron)
  • Kimball Glass Company (Toledo)
  • Kimble Glass (South Point)
  • Kindt – Collins (Cleveland)
  • King Kwik (Cincinnati)
  • Kings Island Amusment Park (Cincinnati)
  • Kirkland Ave. Pumping Station (Cleveland)
  • Kirkwood Carbon (Cleveland)
  • Klausner Cooperage Company (Cleveland)
  • Knight Tire and Rubber Company (Canton)
  • Kobelco Stewart Bolling, Inc. (Cleveland)
  • Koblintz Plumbing (Cleveland)
  • Kodel Radio Corp (Cincinnati)
  • Kohlmeyer (Lorain)
  • Koller Bros. (Cleveland)
  • Koppers Company, Inc. (Fremont)
  • Koppers Company, Inc. (Warren)
  • Koppers Company, Inc. (Youngstown)
  • Koppers Company Wood Preserving Div (Orrville)
  • Kordex Company (Marietta)
  • Kottler Metal (Cleveland)
  • Kovatch Castings (Akron)
  • Kramig Foamglass (Cincinnati)
  • Krauth and Benninghofen (Middleton)
  • Krebs Calkins Company (Ashland)
  • Krell French Piano Company (Springfield)
  • Krippendorf and Dittman (Cincinnati)
  • Krochler Manufacturing. Company (Cleveland)
  • Kroger Bakery (Solon)
  • Kroger Candy (Cincinnati)
  • Kroger Company (Solon)
  • Kroger Grocery & Baking Company (Dayton)
  • Kroger Grocery and Baking Company (Cincinnati)
  • Kroger Grocery and Baking Company (Columbus)
  • Kroger Meats (Cincinnati)
  • Kroger Warehouse (Columbus)
  • Kuempel Company (Cincinnati)
  • Kuempel Company (Columbus)
  • Kyger Creek Power Plant (Cheshire)
  • Kyger Creek Power Plant (Gallipolis)
  • Kyklos Bearing International (Sandusky)
  • Kyova Pipe (Ironton)
L
  • L & M Stagecraft (Cleveland)
  • L-K Heating (Cleveland)
  • L.B. Lockwood Company (Cleveland)
  • L.C. and W.L. Iron Company (Piqua)
  • L. Pitschmann (Independence)
  • L. Schreiber and Sons Company (Norwood)
  • La Belle Iron Works (Steubenville)
  • La Belle Works (Dover)
  • Laborers Union (Portsmouth)
  • Lackawanna (Lorain)
  • Lady of Lourdes (Cleveland)
  • Lagonda Manufacturing Company (Springfield)
  • Lake City Vocational School (Cleveland)
  • Lake Erie Bowling Green and Napoleon Railway Company (Bowling Green)
  • Lake Erie Electric (Cleveland)
  • Lake Erie Electric (Lorain)
  • Lake Erie Iron Company (Cleveland)
  • Lake Erie Provision Company (Cleveland)
  • Lake Erie Screw (Cleveland)
  • Lake Erie Water Project (Toledo)
  • Lake Road Generating Station (Cleveland)
  • Lake Shore and Mich. Southern Railroad Company (Cleveland)
  • Lake Shore and Michigan Southern Railway Company (Ashtabula Harbor)
  • Lake Shore and Michigan Southern Railway Company (Cleveland)
  • Lakeshore and Mich So Railway Company (Toledo)
  • Lake Shore and Mich Southern Railway Company (Ashtabula)
  • Lake Shore A Plant (Cleveland)
  • Lake Shore Electric Railway Company (Cleveland)
  • Lakeshore Electric Railway Company (Fremont)
  • Lake Shore Electric Railway Company (Lorain)
  • Lake Shore Station (Cleveland)
  • Lakeside Hospital (Cleveland)
  • Lakewood Apartments (Dayton)
  • Lambert Tire and Rubber Company (Barberton)
  • Lamson & Sessions Company (Cleveland)
  • Lancaster Glass Corporation (Lancaster)
  • Lancaster Jr. High School (Lancaster)
  • Landers Corporation (Toledo)
  • Lane and Bodley Company (Cincinnati)
  • Lang Body Company (Cleveland)
  • Lanly Company (Cleveland)
  • Larry L Kaufman Company (Toledo)
  • Larsen Foundry (Grafton)
  • Larson Castings (Grafton)
  • Larson Foundry (Grafton)
  • Larson Steel (Grafton)
  • Lasalle (Toledo)
  • Latonia Refining Corporation (Cleveland)
  • Lau Blower Company (Cleveland)
  • Laurel Homes (Cincinnati)
  • Law Knox Division & Youngstown Sheet Tube (Youngstown)
  • Lawrenceberg Plumbing & Heating (Cincinnati)
  • Lawson Dairy (Canton)
  • Lawson Dairy Company (Cuyahoga Falls)
  • Lawson Milk Company (Cuyahoga Falls)
  • Lazarus & Company F & R (Columbus)
  • Lear Siegler (Cleveland)
  • Lear Siegler (Maple Heights)
  • Lear Siegler Inc Power Equip Div (Bedford)
  • Lebanon Boiler (Lebanon)
  • Lebanon Correctional Inst (Lebanon)
  • Lebanon Light & Power Plant (Lebanon)
  • Lectrolite Corp (Defiance)
  • Lectromelt (Barberton)
  • Lederer Terminal Warehouse Company (Cleveland)
  • Lees-Bradner (Cleveland)
  • Lee Tire and Rubber Company (Youngstown)
  • Leetonia Steel Company (Leetonia)
  • Lehigh Portland Cement Company (Wellston)
  • Leisy Brewing Company (Cleveland)
  • Leonard C Hanna (Lorain)
  • Lesavoy Industries (Newark)
  • Lester Engineering (Bedford)
  • Lester Industries (Bedford)
  • Levey Ink (Cincinnati)
  • Levey Ink – Tanks (Evendale)
  • Lexington Abrasives, Inc. (Alliance)
  • Lexington Soy Products Company (Lexington)
  • L Hoster Brewing Company (Columbus)
  • Libby-Owens-Ford Glass Company (Toledo)
  • Libby Owens Ford Glass Company (Rossford)
  • Liberty Steel Company (Warren)
  • Liberty Works (Warren)
  • Licking County Health Sysrear Press Room (Newark)
  • Licking County Hosp. (Heath)
  • Licking County Memorial Hospital (Newark)
  • Licking Light and Power Company (Newark)
  • Licking Memorial Hospital (Heath)
  • Licking Memorial Hospital (Newark)
  • Light and Power Plant (Fairport Harbor)
  • Lille Lee Apts (Cincinnati)
  • Lima and Toledo Traction Company (Lima)
  • Lima Electric Railway and Light Company (Lima)
  • Lima Locomotive (Lima)
  • Lima Memorial Hospital (Lima)
  • Lima Packing Company (Lima)
  • Lima Refinery Plant (Lima)
  • Lima State Hospital (Canton)
  • Lima State Hospital (Lima)
  • Lima Supply (Lima)
  • Limbach Building (Cincinnati)
  • Limbach Company (Cleveland)
  • Lincoln Electric (Cleveland)
  • Lincoln Electric (Mentor)
  • Lincoln Electric Company (Euclid)
  • Lincoln Elementary School (Cincinnati)
  • Lincoln School (Canton)
  • Lincoln School (Willoughby)
  • Lincolnshire Elementary School (Maumee)
  • Linde Air Products Company (Ashtabula)
  • Linde Air Products Company (Canton)
  • Linde Air Products Company (Cleveland)
  • Linde Air Products Company (Middleton)
  • Linde Air Products Company (Portsmouth)
  • Linde Air Products Company (Steubenville)
  • Linde Air Products Company (Youngstown)
  • Linde Company (Ashtabula)
  • Linderme Tube (Cleveland)
  • Linmoor Junior High School (Columbus)
  • Lintern Corporation (Mentor)
  • Lippincott Company (Napoleon)
  • Liquid Carbonic Corporation (Cleveland)
  • Liquid Carbonic Corporation (Urbana)
  • Little Miami Plumbing (Cincinnati)
  • Lloyd Booth Department (Youngstown)
  • Lockbourne Air Force Base (Columbus)
  • Lockheed Martin Maritime Systems (Akron)
  • Lodge and Davis Machine Tool Company (Cincinnati)
  • Loew’s Theatre (Akron)
  • Logan Natural Gas and Fuel Company (Elyria)
  • Long and Alstalter Company (Fremont)
  • Longcoy Elementary School (Canton)
  • Longfellow School (Eastlake)
  • Longview Hospital (Carthage)
  • Long View State Hospital (Cincinnati)
  • Longworth Station (Dayton)
  • Lorain and Cleveland Railroad Company (Cleveland)
  • Lorain and Cleveland Railroad Company (Lorain)
  • Lorain Community Hospital (Lorain)
  • Lorain County Electric Company (Elyria)
  • Lorain County Electric Company (Lorain)
  • Lorain County Hosp (Lorain)
  • Loraine Shipbuilding Company (Lorain)
  • Lorain Refractories (Lorain)
  • Lorain Shipyards (Lorain)
  • Lorain Steel Company (Lorain)
  • Lorain St Railway Company (Lorain)
  • Lorain Street Railway Company (Lorain)
  • Lorain Treatment Plant (Lorain)
  • Losantiville Country Club (Cincinnati)
  • Loudon Bowman Div (Napoleon)
  • Loughlin Nail Company (Martins Ferry)
  • Louisville & Nashville Railroad (Cincinnati)
  • Lowe Brothers Paint Factory (Dayton)
  • Lower Union Mills (Youngstown)
  • LTV (Warren)
  • LTV Campbell Plant (Campbell)
  • LTV Corp (Cleveland)
  • LTV Republic (Cleveland)
  • LTV Republic Steel (Canton)
  • LTV Republic Steel (Elyria)
  • LTV Republic Steel (Lorain)
  • LTV Republic Steel (Massillon)
  • LTV Republic Steel (Niles)
  • LTV Sheet and Tube (Campbell)
  • LTV Sheet and Tube (Canton)
  • LTV Sheet and Tube (Massillon)
  • LTV Sheet and Tube (Niles)
  • LTV Sheet and Tube (Youngstown)
  • LTV Steel (Cleveland)
  • LTV Steel (Louisville)
  • LTV Steel (Massillon)
  • LTV Steel (Youngstown)
  • LTV Steel Corp (Cleveland)
  • LTV Steel Flat Rolled Company (Cleveland)
  • LTV Steel Mill (Cleveland)
  • Lubrizol (Euclid)
  • Lubrizol Corporation (Cleveland)
  • Lubrizol Corporation (Painesville)
  • Lubrizol Corporation (Wickliffe)
  • Lufran Company (Macedonia)
  • Lukenheimer Company (Cincinnati)
  • Lummus Company (Toledo)
  • Lunken Airport (Cincinnati)
  • Lunkenheimer Company (Cincinnati)
  • Lunkenheimer Valve Company (Carthage)
  • Lutheran Hospital (Cleveland)
  • Lutheran Medical Center (Cleveland)
  • Lutz Concrete Company (Bucyrus)
  • Lyman Boat Works (Sandusky)
  • Lyric & State Theatres (Lima)
M
  • M & C Tool Crib (Barberton)
  • M&R Dietetic (Columbus)
  • M & R Dietetic Laboratories, Inc. (Columbus)
  • M. A. Hanna and Company (Cleveland)
  • M. B. Farrin Lumber Company (Cincinnati)
  • M.J. Gibbons Supply Company (Dayton)
  • M. Werk Soap Company (Saint Bernard)
  • Mabley & Carew (Cincinnati)
  • M A Bradley (Cleveland)
  • Madison Avenue Plant (Toledo)
  • Magnesium Aluminum (Cleveland)
  • Magnetics Interning (Maple Heights)
  • Magnus Metals (Evendale)
  • Mahoning and Shenago Railway Light Company (Lowellville)
  • Mahoning County Jail (Youngstown)
  • Mahoning Electric Light Company (Youngstown)
  • Mahoningside (Warren)
  • Mahoning Valley Iron Company (Youngstown)
  • Mahoning Valley Railway Company (Niles)
  • Mahoning Valley Railway Company (Youngstown)
  • Mahoning Valley Supply, Inc. (Akron)
  • Mahoning Valley Tractor Company (Youngstown)
  • Mahoning Valley Works (Youngstown)
  • Mallory-Sharon Titanium Corporation (Ashtabula)
  • Mallory Battery Company (Cleveland)
  • Mallory Sharon Metals Corporation (Ashtabula)
  • Malone Sewing Machine Company (Chillicothe)
  • Manchester Power Station (Manchester)
  • Mansbach Metal (Jackson)
  • Mansfield Electric Light and Power Company (Mansfield)
  • Mansfield Electric Railway Light and Power Company (Mansfield)
  • Mansfield General Hospital (Mansfield)
  • Mansfield Hospital (Canton)
  • Mansfield Hospital (Mansfield)
  • Mansfield Lahm Airport (Mansfield)
  • Mansfield Metal Fabricating, Inc. (Mansfield)
  • Mansfield Metal Treatment (Mansfield)
  • Mansfield Municipal Airport (Mansfield)
  • Mansfield O High School (Mansfield)
  • Mansfield Pattern Works. (Mansfield)
  • Mansfield Plumbing (Perrysburg)
  • Mansfield Products (Mansfield)
  • Mansfield Railway and Light Company (Mansfield)
  • Mansfield Reformatory (Lima)
  • Mansfield Reformatory (Mansfield)
  • Mansfield Sheet and Tin Plate Company (Mansfield)
  • Mansfield Tire and Rubber Company (Mansfield)
  • Mansfield Water Works (Mansfield)
  • Mar-Par Insulating Company (Marietta)
  • Marathon Ashland Petroleum (Colesville)
  • Marathon Ohio (Canton)
  • Marathon Tire and Rubber Company (Akron)
  • Marathon Tire and Rubber Company (Cuyahoga Falls)
  • Marble Plant (Newark)
  • Mariemont Library (Cincinnati)
  • Marietta College (Cleveland)
  • Marietta College (Marietta)
  • Marietta Shipyard (Marietta)
  • Marion Brick (Marion)
  • Marion Correctional Institute (Marion)
  • Marion Electric Light and Power Company (Marion)
  • Marion Franklin Recreation Center (Columbus)
  • Marion General Hospital (Marion)
  • Marion Power Shovel (Marion)
  • Marion Railway Ltd Power Company (Marion)
  • Marion Reserve Power Company (Marion)
  • Marion Shovel (Marion)
  • Marion Steel Company (Marion)
  • Mark Manufacturing Company (Zanesville)
  • Marrietta Plant Project 7 (Belpre)
  • Mars Inc (Columbus)
  • Martin-Barriss Company (Cleveland)
  • Martin Builders (Athens)
  • Martindale Electric Company (Cleveland)
  • Marting Iron and Steel Company (Ironton)
  • Martins Ferry Municipal Light Plant (Martins Ferry)
  • Martins Ferry Water Works (Martins Ferry)
  • Marymount Hospital (Cleveland)
  • Mason Color & Chemical (East Liverpool)
  • Masonic Temple (Canton)
  • Mason Tire and Rubber Company (Bedford)
  • Massillon Electric and Gas Company (Massillon)
  • Massillon Gas and Electric Company (Massillon)
  • Massillon Rolling Mill Company (Massillon)
  • Massillon State Hospital (Massillon)
  • Mast Crowell and Kirkpatrick (Springfield)
  • Master Electric Company (Dayton)
  • Master Fabricators (Cleveland)
  • Master Metal (Cleveland)
  • Master Tire and Rubber Company (Dayton)
  • Mather Company (Toledo)
  • Mau-Sherwood Supply Company (Akron)
  • Maumee Chemical (Cincinnati)
  • Maumee Chemical Company (Saint Bernard)
  • Maumee Rolling Mill Company (Toledo)
  • May Company (Cleveland)
  • May Company (Mentor)
  • M Burkhardt Brewing Company (Akron)
  • Mcalpins (Cincinnati)
  • Mcbride Plbg & Htg Mallory Sharon Mtls Corp (Ashtabula)
  • Mccall Printing (Dayton)
  • Mccook Field Storm Pump Station (Dayton)
  • Mccracken Power House (Columbus)
  • Mcdawel Company (Cleveland)
  • Mcdermott Technology Inc. (Alliance)
  • McDonald Steel (McDonald)
  • Mcdonald’s (Cincinnati)
  • Mcdowell-Wellman Engineering Company (Cleveland)
  • Mcgean Chemical Company (Cleveland)
  • Mckelfrey Iron Company (Leetonia)
  • Mckinnon Dash and Hdware Company (Troy)
  • M C Lilly Company (Columbus)
  • Mcmyler Interstate Company (Bedford)
  • Mcmyler Manufacturing Company (Cleveland)
  • Mc Myler Manufacturing Company (Warren)
  • Mcnell Machine & Engineering Company (Akron)
  • Mead Corporation (Chillicothe)
  • Mead Corporation (Cincinnati)
  • Meade Paper Company (Cleveland)
  • Meadowdale School (Dayton)
  • Mead Paper (Cincinnati)
  • Mead Paper Company (Dayton)
  • Mead Pulp and Paper Company (Chillicothe)
  • Mead Straw Pulp Company (Chillicothe)
  • M E Campbell Junior High (Cincinnati)
  • Mechanical Rubber Company (Cleveland)
  • Medical Center Association. Ltd (Canton)
  • Medina Foundry Company (Medina)
  • Meggitt Aircraft Braking Systems (Akron)
  • Meiers Wine Cellar (Cincinnati)
  • Memorial Community Center Building (Cincinnati)
  • Memorial Hospital (Fremont)
  • Memorial Hospital of Geneva (Geneva)
  • Mendel, Drucker Company (Norwood)
  • Mentor High School (Mentor)
  • Merchants Heat Light and Power Company (Canton)
  • Merchants Ice and Cold Storage Company (Cincinnati)
  • Mercy Franciscan Hosp. Mt. Airy (Cincinnati)
  • Mercy Hospital (Cincinnati)
  • Mercy Hospital (Columbus)
  • Mercy Hospital (Fremont)
  • Meriam Weld (Cleveland)
  • Merrell National Laboratories (Cincinnati)
  • Mersman Brothers Brandts Company (Celina)
  • Mesta Machine Company (Cleveland)
  • Mesta Machine Company (Steubenville)
  • Metal Forge Company (Columbus)
  • Metal Reduction Plant (Ashtabula)
  • Metals Applied (Cleveland)
  • Methodist Book Concern (Cincinnati)
  • Methodist Publishing House (Cincinnati)
  • Metro General Hospital (Cleveland)
  • Metrohealth Medical Center (Cleveland)
  • Metro Hospital (Cleveland)
  • Metropolitan Alloys (Cleveland)
  • Metropolitan General Hospital (Cleveland)
  • Metropolitan Housing Authority (Cincinnati)
  • Metro Sewer District of Cinninati (Cincinnati)
  • Meyer Huschart Packing Company (Cincinnati)
  • Miami Fort Generating Station (North Bend)
  • Miami Fort Power Plant (Cincinnati)
  • Miami Fort Power Station (North Bend)
  • Miami Fort Station (Cincinnati)
  • Miami Light Heat and Power Company (Piqua)
  • Miami Oil and Soap Works. (Cincinnati)
  • Miami Papers Company (Dayton)
  • Miamisburg Box Board (Miamisburg)
  • Miamisburg High School (Miamisburg)
  • Miamisburg Paper Company (Miamisburg)
  • Miamisburg Water and Light Plant (Miamisburg)
  • Miamisburg Water Works (Miamisburg)
  • Miami University (Fremont)
  • Miami University (Oxford)
  • Miami Valley Hospital (Dayton)
  • Miami Valley Lab (Cincinnati)
  • Miami Valley Railway Company (Piqua)
  • Mid-Ohio Sports (Lexington)
  • Mid -West Box Company (Circleville)
  • Middletown Development & Supply Company (Middleton)
  • Middletown Gas and Electric Company (Middleton)
  • Middletown Hospital Association (Middleton)
  • Middletown Machine Company (Middleton)
  • Middletown Paper (Middleton)
  • Middletown Sand (Middleton)
  • Middletown Works (Middleton)
  • Midland-Ross Corp (Cleveland)
  • Midland-Ross Corporation (Painesville)
  • Midland-Ross Corporation (Toledo)
  • Midland Ross (Cleveland)
  • Midland Steel (Cleveland)
  • Midland Steel Products Company (Cleveland)
  • Midwest Rubber (Akron)
  • Midwest Rubber Company (Barberton)
  • Midwest Rubber Reclaimin Company (Barberton)
  • Mike Thompson (Rocky River)
  • Milburn Wagon Company (Toledo)
  • Milcreek Valley St Railway (Saint Bernard)
  • Millcreek (Cincinnati)
  • Mill Creek Distilling Company (Cincinnati)
  • Millenium Chemical Plant (Geneva)
  • Millennium Chemical (Ashtabula)
  • Miller Dubrul and Peters Manufacturing Company (Cincinnati)
  • Miller Rubber Company (Akron)
  • Miller Rubber Company (South Akron)
  • Milligan Hardware (East Liverpool)
  • Millotte Transfer Storage Company (Sandusky)
  • Mining & Metals Div (Marietta)
  • Minnesota Mining & Manufacturing. Company (Montpelier)
  • Missile Corp of America (Cleveland)
  • Mittal Steel (Cleveland)
  • M J Gibbons Supply of Middletown (Middleton)
  • Mobay Chemical (Hannibal)
  • Mobil Chemical (Cincinnati)
  • Model Pattern & Foundry (Cincinnati)
  • Modern Tool (Cleveland)
  • Moes Acoustical Inc. (Mansfield)
  • Mohawk Rubber Company (Akron)
  • Molded Fiberglas Body Company (Ashtabula)
  • Molded Fiber Glass Body Company (Ashtabula)
  • Moloney Aluminum (Sebring)
  • Monac Elementary School (Maumee)
  • Monarch Aluminum Manufacturing Company (Cleveland)
  • Monarch Electric (Cleveland)
  • Mondie Forge (Cleveland)
  • Monougahella Valley Tractior Company (Marietta)
  • Monsanto-Mound Plant (Miamisburg)
  • Monsanto Chemical Company (Addyston)
  • Monsanto Chemical Company (Cincinnati)
  • Moraine Products Div Gmc (Dayton)
  • Moreland Court Apartments (Cleveland)
  • Morgan Engineering Company (Alliance)
  • Mosaic (Ironton)
  • Mosinee Paper Company (Middleton)
  • Mosler Safe Company (Fremont)
  • Motor Repair Manufacturing. (Cleveland)
  • Mount Carmel Hospital (Columbus)
  • Mount Lookout Junior High School (Cincinnati)
  • Mount Sinai Hospital (Cleveland)
  • Mount St. Joseph College Delhi (Cincinnati)
  • Mount Union College (Alliance)
  • Mount Vernon Railway and Lt Company (Columbus)
  • Mt. Union College (Canton)
  • Muddy Creek Tr Plant (Cincinnati)
  • Muddy Creek Waste Water (Cincinnati)
  • Muehlstein Company, Inc. (Akron)
  • Mufco Industries (Elyria)
  • Mullin Manufacturing Corporation (Salem)
  • Mullins Body Corp (Salem)
  • Mullins Manufacturing Company (Warren)
  • Multi Color Type Company (Cincinnati)
  • Multi Industube Service (Warren)
  • Muncie Hartford and Fort Wayne Railway (Cleveland)
  • Municipal Airport (Dayton)
  • Municipal Electric Light and Water Plant (Saint Marys)
  • Municipal Electric Light and Water Works (Clyde)
  • Municipal Electric Lighting Plant (Cleveland)
  • Municipal Electric Light Plant (Lebanon)
  • Municipal Electric Light Plant (Orrville)
  • Municipal Electric Light Plant (Saint Bernard)
  • Municipal Electric Plant (Columbus)
  • Municipal Electric Plant (Fremont)
  • Municipal Electric Plant (Napoleon)
  • Municipal Electric Plant (Reading)
  • Municipal Electric Power Plant (Wellston)
  • Municipal Light and Power Plant (Dover)
  • Municipal Light and Power Plant (Troy)
  • Municipal Lighting. Plant (Cleveland)
  • Municipal Lighting Plant (Columbus)
  • Municipal Light Plant (Painesville)
  • Municipal Power Plant (Celina)
  • Municipal Power Plant (Miamisburg)
  • Municipal Power Plant (Orrville)
  • Municipal Power Plant (Shelby)
  • Municipal Traction Company (Cleveland)
  • Municipal Water and Light Company (Montpelier)
  • Municiple Electric (Painesville)
  • Muny Light Plant (Cleveland)
  • Murphy’s Roofing (Fairborn)
  • Muskingum Power Station (Beverly)
  • Muskingum River Plant (Relief)
  • Muskingum Station (Relief)
  • Mustingum River Power Plant (Beverly)
  • M Werk Company (Cincinnati)
  • Myott Industries (Eastlake)
N
  • N&W (Alliance)
  • N.A.C.A. (Cleveland)
  • N. A. S. A. (Cleveland)
  • Nadler Shoe Store (Cincinnati)
  • Nanarre Ave. Siding (Toledo)
  • Napoleon Power & Light (Napoleon)
  • Napoleon Water Works and Electric Light Company (Napoleon)
  • Narco (Manchester)
  • Nasa-Lewis Research Center (Cleveland)
  • Nasa Plumbrook (Sandusky)
  • Nat. Sheet Steel Company (Mansfield)
  • National Acme Company (Cleveland)
  • National Advisory Committee (Cleveland)
  • National Artificial Silk Company (Cleveland)
  • National Biscuit Company (Cincinnati)
  • National Biscuit Company (Mansfield)
  • National Box Board Company (Middleton)
  • National Brass (Cleveland)
  • National Bronze & Aluminum Company (Cleveland)
  • National Carbon Company (Cleveland)
  • National Carbon Company Inc. (Fostoria)
  • National Cash Register Company (Cambridge)
  • National Cash Register Company (Dayton)
  • National Casting (Cleveland)
  • National Casting (Toledo)
  • National Casting Company (Warren)
  • National Cement Products Company (Toledo)
  • National Chemical Company (Cleveland)
  • National Chemical Company (Newburgh)
  • National Distillers and Chemical Corporation (Cincinnati)
  • National Distillers Corporation (Ashtabula)
  • National Distillers Prod Corp (Cincinnati)
  • National Drilling Mach Company (Barberton)
  • National Drywall, Incorporated (Akron)
  • National Electric Carbon (Fostoria)
  • National Electric Lamp Association (Cleveland)
  • National Home For Disabled Volunteer Soldiers (Dayton)
  • National Lamp Works of The General Electric Company (Cleveland)
  • National Lead Company (Cincinnati)
  • National Life Insurance Company (Cincinnati)
  • National Linseed Oil Company (Piqua)
  • National Machinery Company (Tiffin)
  • National Malleable (Cleveland)
  • National Malleable Castings Company (Toledo)
  • National Metal (Cleveland)
  • National Metal (Wadsworth)
  • National Milling Company (Toledo)
  • National Mortar and Supply Company (Gibsonburg)
  • National Power & Machinery Company (Cleveland)
  • National Quality Lamp Div of General Electric Company (Cleveland)
  • National Ray Chemical Plant (Painesville)
  • National Rubber Company (Akron)
  • National Rubber Machinery (Akron)
  • National Screw and Manufacturing Company (Cleveland)
  • National Screw and Tack Company (Cleveland)
  • National Sinktop (Cincinnati)
  • National Steel Company (Mingo Junction)
  • National Steel Company (Youngstown)
  • National Steel Works (Bellaire)
  • National Stove Company Div (Lorain)
  • National Superior Company (Toledo)
  • National Supply Company (Springfield)
  • National Tube (Cleveland)
  • National Tube Company (Lorain)
  • National Tube Steel Mill (Lorain)
  • National Union Building (Toledo)
  • Natl Electric Lamp Company (Cleveland)
  • Naugatuck Chemical Company (Painesville)
  • Naval Air Training Station (Akron)
  • Ncr Corporation (Dayton)
  • Neenah Paper, Incorporated (Urbana)
  • Neiveson-Weiskopt (Reading)
  • Nelacrest Gardens (Cleveland)
  • Nelson Finishing (Cleveland)
  • Newark City Schools (Newark)
  • Newark Extusion (Newark)
  • Newark Galvanizing Company (Newark)
  • Newark Stove Company (Newark)
  • New Boston Coke George O\\\’Neil (New Boston)
  • New Departure Div of G.M.C. (Sandusky)
  • New Federal Office Building (Toledo)
  • New General Office Building (Cincinnati)
  • New Jersey Zinc (Ashtabula)
  • New Miami Middle School (Fremont)
  • New Philadelphia School (Canton)
  • New Philadelphia School (New Philadelphia)
  • New Richmond School (New Richmond)
  • New St Anns Hospital (Cleveland)
  • New Tod and Company (Youngstown)
  • New Way Linen (Cincinnati)
  • New York Central Railroad (Cleveland)
  • New York Central Railroad (Columbus)
  • New York Central Railroad, Airline Junction Plant (Toledo)
  • New York Central System (Ashtabula)
  • New York Central System (Bellefontaine)
  • New York Central System (Cincinnati)
  • New York Central System (Cleveland)
  • New York Railroad (Ashtabula)
  • Nichols Dryer Company (Norwood)
  • Nickel Plate R.R. (Cleveland)
  • Niles Bement Pond Company (Fremont)
  • Niles Beuresit Porch Company (Niles)
  • Niles Generating Plant (Niles)
  • Niles Glass Plant (Niles)
  • Niles Iron and Sheet Company (Niles)
  • Niles Power Plant (Niles)
  • Niles Rolling Mill Company (Niles)
  • Niles Tool Works Company (Fremont)
  • Nitrogen Div Allied Chemical and Dye Corp (South Point)
  • Nitrogen Petrochemical Plant (Lima)
  • Nl Industries, Inc. (Toledo)
  • No 1 Refinery (Cleveland)
  • Nock Fire Brick Company (Cleveland)
  • Nordyke and Marmon (Toledo)
  • Norfolk and Western Railway Company (Columbus)
  • Norfolk and Western Railway Company (Portsmouth)
  • North American Aviation Corporation (Columbus)
  • North American Lead Company (Columbus)
  • North American Manufacturing Company (Cleveland)
  • North American Refractories (Ironton)
  • North American Rockwell Corp (Columbus)
  • Northeast Ohio Reg. Sewer (Cleveland)
  • Northern Boiler (Cleveland)
  • Northern Ohio Sugar Company (Fremont)
  • Northern Ohio Tract Company (Cuyahoga Falls)
  • Northern Ohio Traction and Light Company (Akron)
  • Northern Ohio Traction and Light Company (Canton)
  • Northern Ohio Traction Light Company (Bedford)
  • Northern Refrigerating Company (Toledo)
  • Northgate Mall (Cincinnati)
  • North Plant (Steubenville)
  • North Side Hospital (Youngstown)
  • Northside Medical Center (Youngstown)
  • North Texas Traction Company (Cleveland)
  • North Western Ohio Light Company (Lima)
  • Northwest High School (Cincinnati)
  • Northwest High School (Fremont)
  • Norton Machinery Company (Cincinnati)
  • Norwood (Cincinnati)
  • Norwood High School (Norwood)
  • Noveon (Akron)
  • Nuckley Covers (Cleveland)
  • Nuclear Plating (Cleveland)
  • Num Num Foods Inc. (Cleveland)
  • Nurses Home City Hospital (Akron)
  • Nutone Inc. (Cincinnati)
  • Ny Central Rail Road Company (Galion)
O
  • O. C. Barber (Akron)
  • O. C. Barber (Barberton)
  • O.S. Kelly Company (Springfield)
  • Oak Hills Savings & Loan (Cincinnati)
  • Oak Rubber (Ravenna)
  • Oakwood St. Railway Company (Dayton)
  • Oatey Company (Cleveland)
  • Obear Nester Glass Company – Recuperator (Toledo)
  • Oberle Jordre Company (Aberdeen)
  • Oberle Jordre Company (New Richmond)
  • Oberlin College (Elyria)
  • Oberlin College (Oberlin)
  • Oberlin Electric and Heatin Company (Oberlin)
  • Oberlin Gas and Electric Company (Oberlin)
  • Oberlin Municipal Light Plant (Oberlin)
  • Occidental Chemical Company (Kenton)
  • Occidental Petroleum Corp (Kenton)
  • Oglebey Norton (Toledo)
  • Ogleybay (Cleveland)
  • Ohio Agricultural Randd Ctr (Wooster)
  • Ohio Agri Experiment Station (Wooster)
  • Ohio and Texas Sugar Company (Columbus)
  • Ohio Asbestos & Insul Company (Cleveland)
  • Ohio Asbestos Company (Cleveland)
  • Ohio Asylum For Epileptics (Gallipolis)
  • Ohio Basking Company (Cleveland)
  • Ohio Bell Stow (Canton)
  • Ohio Bell Telephone Company (Cleveland)
  • Ohio Board of Administration (Columbus)
  • Ohio Box Board Company (Cleveland)
  • Ohio Boxboard Company (Rittman)
  • Ohio Brass Company (Barberton)
  • Ohio Brass Company (Mansfield)
  • Ohio Carbon (Cleveland)
  • Ohio Casualty Insurance Company (Fremont)
  • Ohio Central Railroad (Columbus)
  • Ohio Central Traction (Galion)
  • Ohio Cereal Company (Circleville)
  • Ohio Chemical & Manufacturing. Company (Cleveland)
  • Ohio Chemical Company (Cleveland)
  • Ohio Crankshaft (Cleveland)
  • Ohio Edison (Akron)
  • Ohio Edison Company (Akron)
  • Ohio Edison Company (Dilles Bottom)
  • Ohio Edison Company (Lorain)
  • Ohio Edison Company (Marion)
  • Ohio Edison Company (Niles)
  • Ohio Edison Company (Shadyside)
  • Ohio Edison Company (Springfield)
  • Ohio Edison Company (Stratton)
  • Ohio Edison Company (Toronto)
  • Ohio Edison Company (Warren)
  • Ohio Edison Company (Youngstown)
  • Ohio Edison Electric Installation Company (Middleton)
  • Ohio Education Association (Columbus)
  • Ohio Electric Company (Cheshire)
  • Ohio Electric Company (Lima)
  • Ohio Electric Railway Company (Fremont)
  • Ohio Electric Railway Company (Hebron)
  • Ohio Electric Railway Company (Lima)
  • Ohio Electric Railway Company (Zanesville)
  • Ohio Ferro (Philo)
  • Ohio Ferro Alloys (Ironton)
  • Ohio Firebrick Company (Jackson)
  • Ohio Forge and Machine Corporation (Cleveland)
  • Ohio Forge Company (Cleveland)
  • Ohio Fuel Gas Company (Columbus)
  • Ohio Fuel Gas Company (Toledo)
  • Ohio Fuel Supply Company (Columbus)
  • Ohio Industrial Insulation Company (Lima)
  • Ohio Injector Company (Wadsworth)
  • Ohio Institute For Feeble Minded Youth (Columbus)
  • Ohio Iron and Steel Company (Lowellville)
  • Ohio Iron Company (Zanesville)
  • Ohio Leather Company (Girard)
  • Ohio Light and Power Company (Newark)
  • Ohio Malleable Iron (Columbus)
  • Ohio Marble Company (Piqua)
  • Ohio Match Company (Wadsworth)
  • Ohio Mechanics Institute (Cincinnati)
  • Ohio Municipal Power Plant (Saint Marys)
  • Ohio National Life Insurance Company (Cincinnati)
  • Ohio Nuclear (Solon)
  • Ohio Paper Bag Company (Middleton)
  • Ohio Pipe & Supply Company, Inc. (Cleveland)
  • Ohio Pipeline (Barberton)
  • Ohio Power (Conesville)
  • Ohio Power Company (Beverly)
  • Ohio Power Company (Bluffton)
  • Ohio Power Company (Brilliant)
  • Ohio Power Company (Canton)
  • Ohio Power Company (Cheshire)
  • Ohio Power Company (Marietta)
  • Ohio Power Company (Philo)
  • Ohio Power Company (Relief)
  • Ohio Products (Canton)
  • Ohio Public Service Company (Cleveland)
  • Ohio Public Service Company (Lorain)
  • Ohio Public Service Company (Marion)
  • Ohio Public Service Company (Sandusky)
  • Ohio Public Service Company (Shadyside)
  • Ohio Public Service Company (Warren)
  • Ohio River Edison Company (Toronto)
  • Ohio River Power, Inc. (Dilles Bottom)
  • Ohio Road Paving Company (Sandusky)
  • Ohio Rubber Company (Willoughby)
  • Ohio Salt Company (Rittman)
  • Ohio Salt Company (Wadsworth)
  • Ohio Sash and Door Company (Cleveland)
  • Ohio Seamless Tube Company (Shelby)
  • Ohio Service (Lorain)
  • Ohio Service Company (Coshocton)
  • Ohio Service Company (New Philadelphia)
  • Ohio Soldiers and Sailors Home (Sandusky)
  • Ohio State Hospital (Lima)
  • Ohio State Hospital For Epileptics (Gallipolis)
  • Ohio State Penitentiary (Columbus)
  • Ohio State Reformatory (Mansfield)
  • Ohio State Training School (Marion)
  • Ohio State University (Athens)
  • Ohio State University (Columbus)
  • Ohio State University (Wooster)
  • Ohio Steel Company (Youngstown)
  • Ohio Steel Foundry Company (Cleveland)
  • Ohio Steel Foundry Company (Lima)
  • Ohio Steel Foundry Company (Springfield)
  • Ohio Steel Works and Furnace (Youngstown)
  • Ohio Straw Board Company (Urbana)
  • Ohio Tar & Asphalt (Canton)
  • Ohio Tar & Asphalt (Massillon)
  • Ohio Transmission & Pump (Columbus)
  • Ohio University (Athens)
  • Ohio Utilities Company (Circleville)
  • Ohio Valley Electric Corp (Gallipolis)
  • Ohio Valley Electric Corporation (Cheshire)
  • Ohio Water Works Department (Bellefontaine)
  • Ohio Wesleyan University (Dayton)
  • Ohio Wesleyan University (Delaware)
  • Ohio Works (Youngstown)
  • Old Trial School (Canton)
  • Olin Aluminum (Hannibal)
  • Olin Mathieson (Cleveland)
  • Olin Mathieson Chemical (Ashtabula)
  • Olin Mathieson Chemical (Hannibal)
  • Olin Mathieson Corp (Ashtabula)
  • Omego Induction Serv. (Niles)
  • Oper. Div (Cleveland)
  • Orangeburg Manufacturing (Ravenna)
  • Orange School (Cleveland)
  • Ordnance Plant (Ravenna)
  • Orient State Institute (Orient)
  • Orion Power Holdings Inc (Avon Lake)
  • Orion Power Holdings Inc (Niles)
  • Orlando Bakery (Cleveland)
  • Ormet Aluminum Plant (Hannibal)
  • Ormet Corporation (Hannibal)
  • Orpet Corp (Hannibal)
  • Orr Felt and Blanket Company (Piqua)
  • Orrville Milk Condensing Company (Orrville)
  • Orrville Municipal Light Plant (Orrville)
  • Orrville Municipal Light Plant (Painesville)
  • Orrville Municipal Utilities (Orrville)
  • Orrville Utilities (Orrville)
  • Orville Municipal Light (Canton)
  • Osborn Brothers (Mentor)
  • Osborn Engr. Company (Cleveland)
  • Osborn Manufacturing. (Cleveland)
  • Osnaburg Township School (Canton)
  • Oster Electric (Cleveland)
  • Oster Manufacturing Company (Cleveland)
  • Oster Manufacturing Company (Wickliffe)
  • Otis Steel Company (Cleveland)
  • Ottawa Chemical Division (Toledo)
  • Otto Construction Company (Lorain)
  • Our Lady of Cincinnati College (Cincinnati)
  • Our Lady of Mercy Hospital (Cincinnati)
  • Overseas Packing, Inc. (Cleveland)
  • Owens-Corning Fiberglas Corporation (Evendale)
  • Owens-Corning Fiberglas Corporation (Granville)
  • Owens-Ford Company (Toledo)
  • Owens-Illinois Glass Company (Columbus)
  • Owens-Illinois Glass Company (Perrysburg)
  • Owens Corning (Oxford)
  • Owens Corning Fiberglas Corporation (Cincinnati)
  • Owens Corning Fiberglas Corporation (Kenton)
  • Owens Corning Fiberglass (Toledo)
  • Owens Corning Fiberglass Corporation (Newark)
  • Owens Illinois Glass Company (Toledo)
  • Owen Tire and Rubber Company (Bedford)
  • Oxford Paper Company (Barberton)
  • Oxychem (Kenton)
P
  • P & G (Cincinnati)
  • P. & G. Building (Cincinnati)
  • P.C.C. and St. L Railway (Columbus)
  • P. Huberty (Cleveland)
  • P.J. Sorg Branch (Middleton)
  • P. Lorillard Company (Middleton)
  • P.P.G. Industries (Barberton)
  • P. R. Sussman Company (Toledo)
  • P. Railroad Western Lines (Crestline)
  • P. Railroad Western Lines (Mingo Junction)
  • P. Railroad Western Lines (Wellsville)
  • P. Wayden Saddlery Hardware Company (Columbus)
  • Pacific Industrial Furnace Company (Newark)
  • Packaging Corporation of America (Rittman)
  • Packard Electric (Warren)
  • Packard Garage (Cleveland)
  • Paige Tube Company (Warren)
  • Painesville Light Plant (Painesville)
  • Painesville Municipal Light Plant (Painesville)
  • Painters Local (Portsmouth)
  • Palmer Milling Company (Middleton)
  • Palysar Rubber Service (Barberton)
  • Pandg Ivory Dale Plant (Cincinnati)
  • Parent Paper Company (Middleton)
  • Parkard Electric Div of GMC (Warren)
  • Park Drop Forge Company (Cleveland)
  • Parker Alliance Company (Cleveland)
  • Parker Drywall (Akron)
  • Parkersburg Marietta and Interurban Railway (Marietta)
  • Park Ohio Industries (Cleveland)
  • Parkview Federal Savings & Loan Company (Shaker Heights)
  • Parma City School District (Parma)
  • Parma Senior High School (Parma)
  • Parsel Army Air Forces Supply Depot (Shelby)
  • Parsons Elementary School (Columbus)
  • Pasquale’s Pizza (Cincinnati)
  • Patheon Pharmaceuticals (Cincinnati)
  • Paul A. Sorg Paper Company (Middleton)
  • Paul Henry Ice Plant (Barberton)
  • Paulin Company (Cleveland)
  • Paul Moore Contracting (Ironton)
  • Paul Stewart and Company (Cincinnati)
  • Peacock Coal Company (Pomeroy)
  • Pearl Oil Company (Bowling Green)
  • Peck-Anderson and Peck Company (Cincinnati)
  • Peckham Coal and Ice Company (Dayton)
  • Peebles Paving Brick Company (Portsmouth)
  • Peerless Drawn Steel Company (Massillon)
  • Peerless Motor Car Company (Cleveland)
  • Peerless Packing Company (Cleveland)
  • Penn-Ohio Coal Company (New Philadelphia)
  • Penn – Virginia Material (Eastlake)
  • Penna and Lake Erie Dock Company (Fairport Harbor)
  • Penna and Mahoning Valley Railway Company (Youngstown)
  • Penna and Ohio Railway (Ashtabula)
  • Penna Railroad Lines West of Pittsbg. (Ashtabula)
  • Penn Central (Cleveland)
  • Penn Centrals Avon Yards (Columbus)
  • Penn Iron and Coal Company (Canal Dover)
  • Penn Shovel Company (Warren)
  • Pennsylvania Company (Ashtabula)
  • Pennsylvania Company (Cleveland)
  • Pennsylvania Ohio Electric Company (Louisville)
  • Pennsylvania Ohio Electric Company (Lowellville)
  • Pennsylvania Railroad (Columbus)
  • Pennsylvania Railroad Company (Cleveland)
  • Pennsylvania Rr Company (Sandusky)
  • Penrod Drywall (Columbus)
  • Pentair (Dayton)
  • Pentair, Inc. (Ashland)
  • Pentz Design (Cleveland)
  • Peoples Hospital (Akron)
  • Peoples Packing Company (Cleveland)
  • Peoples Railway Company (Dayton)
  • Pepsi Cola Bottling Company (Cincinnati)
  • Perfection Laundry Company (Springfield)
  • Perfection Stove Corporation (Cleveland)
  • Perma Welding Company (Cleveland)
  • Permold Corporation (Medina)
  • Perry & Derrick Company (Norwood)
  • Perry Fay Manufacturing Company (Elyria)
  • Perry Nuclear Power Plant (Perry)
  • Perry Payne Company (Cleveland)
  • Perstorp Polyols Incorporated (Toledo)
  • Peruna Drug Manufacturing Company (Columbus)
  • Pesco Products Company (Perry)
  • Peters Cartridge Company (Cincinnati)
  • Peters Dash Company (Columbus)
  • Peter White (Lorain)
  • Pet Milk Company (Bryan)
  • Pettibone Ohio (Cleveland)
  • Pfaudler Company (Elyria)
  • Pharis Tire and Rubber Company (Newark)
  • Phelps Apts (Cincinnati)
  • Philadelphia Apartments (Cincinnati)
  • Philadelphia Rubber Works Company (Akron)
  • Philip Carey Manufacturing Company (Lockland)
  • Phillip Mango Company (Cleveland)
  • Phillips Petroleum Company (Toledo)
  • Phillip Sporn (Gallipolis)
  • Philo Plant (Philo)
  • Philo Power Plant (Zanesville)
  • Phipps A J Company (Canton)
  • Phoenix Electric (Youngstown)
  • Phs St. Michaels (Cleveland)
  • Pickands Mather and Company (Cleveland)
  • Pickaway Power Station (Columbus)
  • Pictet Ice Company (Cleveland)
  • Piezoelectric Division (Bedford)
  • Pilot Chemical (Cincinnati)
  • Pilot Chemical (Lockland)
  • Pilot Piping (Cincinnati)
  • Pinegrove Twp School (Canton)
  • Pinneo and Daniels Company (Dayton)
  • Piping Contractors (Columbus)
  • Piqua Edison Company (Piqua)
  • Piqua Electric Company (Piqua)
  • Piqua Memorial Hospital (Piqua)
  • Piqua Municipal Power Plant (Piqua)
  • Piqua St. Railway Company (Piqua)
  • Piqua Stone Production Company (Piqua)
  • Pittsburg and Conneaut Dock Company (Ashtabula Harbor)
  • Pittsburgh (Cleveland)
  • Pittsburgh-Des Moines Steel Company (Cleveland)
  • Pittsburgh Coke & Chemical Company (Struthers)
  • Pittsburgh Plate Glass Company (Barberton)
  • Pittsburgh Plate Glass Company (Canton)
  • Pittsburgh Plate Glass Company (Circleville)
  • Pittsburgh Plate Glass Company (Crestline)
  • Pittsburgh Plate Glass Company (Zanesville)
  • Pittsburgh Valve and Fitting Company (Barberton)
  • Pittsburg Plate Glass Company (Cincinnati)
  • P J Sorg Company (Middleton)
  • Plain Dealer Publishing Company (Cleveland)
  • Plant Number 1 (Troy)
  • Plaster Process Castings (Cleveland)
  • Plastics and Coal Chemical Div (Struthers)
  • Plastics and Coal Chemicals (Youngstown)
  • Plastics Moulding Corporation (Cincinnati)
  • Plastonics (Avon Lake)
  • Platt Iron Works (Dayton)
  • Pleasant Run School (Cincinnati)
  • Plechaty Company (Cleveland)
  • Plibrico Inc (Columbus)
  • Plibrico Sales & Service Company (Columbus)
  • Plibrico Sales & Services (Toledo)
  • Plm (Cleveland)
  • Plymer Plant, Glidden Company (Huron)
  • Pmc Inc (Cincinnati)
  • Pmc Specialties Inc. (Cincinnati)
  • Poguls Tri-County Shopping Center (Cincinnati)
  • Pollak Steel (Marion)
  • Pollak Steel Company (Cincinnati)
  • Pollock – Becker Company (Ashtabula Harbor)
  • Pomeroy Salt Association Company (Pomeroy)
  • Poor & Company (Canton)
  • Pope Tin Plate Company (Steubenville)
  • Poro Incorporated (Berea)
  • Portage Hotel Company (Akron)
  • Portage Machine Company (Akron)
  • Portage Rubber Company (Barberton)
  • Portage Straw Board Company (Akron)
  • Porter Drywall (Gallipolis)
  • Porter Steel Treating (Cleveland)
  • Port Lawrence Company (Toledo)
  • Port Plastics Plant (Addyston)
  • Portsmouth Solvay Coke Company (Portsmouth)
  • Portsmouth St. Railroad and Light Company (New Boston)
  • Portsmouth St. Railway and Light Company (Portsmouth)
  • Portsmouth Steel Mill (Portsmouth)
  • Portsmouth Works (New Boston)
  • Post Publishing Company (Cincinnati)
  • Potter Industries (Cleveland)
  • Potter’s Shoe Store (Cincinnati)
  • Power & Light Company (Dayton)
  • Power Building Company (Cincinnati)
  • Power House (Wooster)
  • Power House Board of Affairs (Orrville)
  • Power Reactor Plant (Toledo)
  • Ppg Industries (Barberton)
  • P P Marsh and Company (Springfield)
  • Prairie States Paper Company (Middleton)
  • Precision Casting Company (Cleveland)
  • Precision Metal (Cleveland)
  • Premark International (Troy)
  • Premier Health Partners (Dayton)
  • Premier Industries (Cleveland)
  • Premier Rubber Company (Dayton)
  • Pressed Brick Company (Dayton)
  • Pressing and Orr Company (Circleville)
  • Prestatite International Corporation (Toledo)
  • Prime Industries (Cleveland)
  • Princeton School (Youngstown)
  • Pr Machine Works (Mansfield)
  • P R Mitchell Company (Cincinnati)
  • P R Mitchelll Company (Cincinnati)
  • Procon, Inc. (Toledo)
  • Procter & Gamble Manufacturing. Company (Ivorydale)
  • Procter and Gamble Company (Saint Bernard)
  • Procter and Gamble Manufacturing Company (Cincinnati)
  • Proctor & Gamble (Lima)
  • Profile Grinding (Cleveland)
  • Progress Lithographing (Cincinnati)
  • Protective Treatment Inc (Dayton)
  • Providence Hospital (Cincinnati)
  • Providence Hospital (Sandusky)
  • Provident Savings Bank and Trust Company (Cincinnati)
  • Provident Tower (Cincinnati)
  • Public Service Company (Columbus)
  • Public Works Sewage Service Dept. (Cincinnati)
  • Pull Auto Body (Cleveland)
  • Pure Die Company (Heath)
  • Pure Gum Specialty Company (Barberton)
  • Pure Oil Company (Heath)
  • Pure Oil Company (Newark)
  • Pure Oil Company Refinery (Toledo)
Q
  • Quaker Oats Company (Akron)
  • Quaker Oats Company (Canton)
  • Quality Casting (Orrville)
  • Quarter Oats Company (Marion)
  • Queen City Supply Company (Cincinnati)
R
  • R.B. Brunemann & Sons, Incorporated (Cincinnati)
  • R.E. Burger Power Station (Shadyside)
  • R. E. Kramig & Company (Cincinnati)
  • R. Koons (Cleveland)
  • R. M. I. Company (Ashtabula)
  • R.O. Apelt and Sons (Cleveland)
  • R.O. Apelt Greenhouse (Cleveland)
  • Radel Concrete (Cincinnati)
  • Radio Corporation of America (Cincinnati)
  • Rainbow Tire and Rubber Company (Delaware)
  • Rajah Oil Company (Youngstown)
  • Ralph M. Parsons Company & Stouffer Chemical Company (Ashtabula)
  • Ralston Purina (Lancaster)
  • Ramada Inn (Cincinnati)
  • Randall and Edsell (Delaware)
  • Rapid Railway Company (Cincinnati)
  • R A Taft Center (Cincinnati)
  • Rauch and Laug Carriage Company (Cleveland)
  • Ravenna Army Ammunition Plant (Ravenna)
  • Ravenna Arsenal (Ravenna)
  • Ravenna Castings (Ravenna)
  • Ravenna Ordnance Plant (Ravenna)
  • Rayen School (Youngstown)
  • Raymond P. Life Company (Bryan)
  • Raymond Walters College (Cincinnati)
  • RCA (Circleville)
  • R C A Rubber Company (Akron)
  • Reactive Metal (Niles)
  • Reactive Metals Inc (Ashtabula)
  • Reading Power (Evendale)
  • Recording and Computing Machine Company (Dayton)
  • Red Seal Electric Company (Cleveland)
  • Red Top Brewing Company (Cincinnati)
  • Reeves Brothers Company (Alliance)
  • Reeves Coal Company (Canal Dover)
  • Reeves Coal Company (New Philadelphia)
  • Reeves Iron Company (Canal Dover)
  • Reeves Manufacturing Company (Dover)
  • Refining Stores (Toledo)
  • Regal Diamond Prod. (Cleveland)
  • Reiter Corporation (Canton)
  • Reliance Electric & Engineering Company (Cleveland)
  • Reliance Electric (Ashtabula)
  • Reliant Energy
  • Remington Rand (Marietta)
  • Renco Group, Inc. (Warren)
  • Renkert Building (Canton)
  • Renner Brewing Company (Akron)
  • Replublic Steel Corporation (Canton)
  • Replublic Steel Corporation (Cleveland)
  • Republic Aluminum (Independence)
  • Republic Aluminum (Warren)
  • Republic Aluminum (Youngstown)
  • Republic Engineered Steels (Massillon)
  • Republic I and D Company (Youngstown)
  • Republic I and S Company (Youngstown)
  • Republic Iron and Steel Company (Niles)
  • Republic Iron and Steel Company (Youngstown)
  • Republic Railway and Light Company (Lowellville)
  • Republic Rubber (Struthers)
  • Republic Rubber Company (Youngstown)
  • Republic Stamping and Enameling Company (Canton)
  • Republic Stamping and Enamelling Company (Canton)
  • Republic Steel (Barberton)
  • Republic Steel (Campbell)
  • Republic Steel (Independence)
  • Republic Steel (Niles)
  • Republic Steelcorp (Cleveland)
  • Republic Steel Corp (Elyria)
  • Republic Steel Corporation (Canton)
  • Republic Steel Corporation (Lorain)
  • Republic Steel Corporation (Massillon)
  • Republic Steel Corporation (Toledo)
  • Republic Steel Corporation (Warren)
  • Republic Steel Corporation (Youngstown)
  • Republic T and D Company (Youngstown)
  • Republic Technologies (Canton)
  • Republic Technologies (Colesville)
  • Republic Technologies (Massillon)
  • Research Product Company (Warren)
  • Reserve Sheet Metal & Furnace Company (Cleveland)
  • Residence Center (Alliance)
  • Retail Clerks Union (Cincinnati)
  • Rex – Budkeye (Cleveland)
  • Rex Metals, Inc. (Cleveland)
  • Reynolds and Reynolds Company (Dayton)
  • Reynolds Memorial Hospital (Canton)
  • Reynolds Metals Company (Newark)
  • Reynolds Near (Circleville)
  • Ric-Wil Company (Barberton)
  • Richard Gorsuch Station (Marietta)
  • Richards Fence (Akron)
  • Richardson Paper Company (Lockland)
  • Richards Wholesale (Cleveland)
  • Rich Ladder and Manufacturing Company (Cincinnati)
  • Richland Brick (Mansfield)
  • Richland Steel Company (Mansfield)
  • Richmond Bros. (Cleveland)
  • Richmond Machine Company (Montpelier)
  • Ridge Seal Electric Company (Cleveland)
  • Ridge Tool (Cleveland)
  • Ridgewood Steel Company (Cincinnati)
  • Rike-Kumler Company (Dayton)
  • Rimer Enterprises (Waterville)
  • Rinehart Ballard and Company (Springfield)
  • Ringel Building (Fremont)
  • Rittman Paperboard (Rittman)
  • Riverdale Station (Dayton)
  • River Dock and Furnace Company (Cleveland)
  • Riverfront Stadium (Cincinnati)
  • River Furnace and Dock Company (Cleveland)
  • River Pumping Station (Cincinnati)
  • Riverside Bridge Company (Martins Ferry)
  • Riverside Hospital (Columbus)
  • Riverside Mercy Hospital (Toledo)
  • River Smelting Company (Cleveland)
  • River Transportation (Cincinnati)
  • Rjf International Corporation (Marietta)
  • RMI Metals (Ashtabula)
  • Robbins and Myers Inc (Springfield)
  • Robert R. Wallace (Lorain)
  • Roberts Insulation (Mansfield)
  • Robinson Brothers Company (Akron)
  • Robinson Clay Products Company (Akron)
  • Rockefeller Building (Cleveland)
  • Rockwell (Columbus)
  • Rockwell (Toronto)
  • Rockwell Manufacturing Company (Barberton)
  • Rockwell Standard Corp (Newark)
  • Rocky River High School (Cleveland)
  • Rocky River High School (Rocky River)
  • Roderick Lean Manufacturing Company (Mansfield)
  • Rogers Brown Company (Ironton)
  • Roll Machine Works (Canton)
  • Ron Dewey (Cleveland)
  • Roofing & Sheet Metal Inc (Youngstown)
  • Roosevelt Jr High School (Fremont)
  • Roosevelt School (Canton)
  • Rossborough Supply (Cleveland)
  • Ross County Medical Center (Chillicothe)
  • Rossford Ordnance Depot (Toledo)
  • Rossford Plant Boiler Room (Rossford)
  • Ross Laboratories (Columbus)
  • Rough Power Plant (Toronto)
  • Royal Crown Cola (Cincinnati)
  • Royal Plastic Manufacturing, Inc. (Cincinnati)
  • Rubber Company (Akron)
  • Rubbermaid (Canton)
  • Rubber Main Job (Canton)
  • Rubber Products Company (Barberton)
  • Rubel Baking Company (Cincinnati)
  • Rud Machine Company (Cleveland)
  • Rush Street Boiler House (Alliance)
  • Russell and Company (Massillon)
  • Russell Eng. Company (Massillon)
  • Russo Orn. (Bedford)
  • Rust Engineering (Chillicothe)
  • Rust Engineering Company (Toledo)
  • Rust Engr. (Cincinnati)
S
  • S-P Manufacturing. (Cleveland)
  • S. A. Esswein Heating and Plumbing Company (Columbus)
  • S. C. M. Chemical (Ashtabula)
  • S. K. Resistite (Columbus)
  • S.K. Wellman Company (Bedford)
  • S. Side Hospital (Youngstown)
  • Safe Cabinet Company (Marietta)
  • Safety Clothing (Cleveland)
  • Safety Engineering (Cleveland)
  • Saint Bernard School (Cincinnati)
  • Saint Lukes Memorial Hospital (Cleveland)
  • Salem Furnace Plant (Salem)
  • Salem Iron Company (Leetonia)
  • Salem Water Works (Salem)
  • Salt Fork State Park (Cambridge)
  • Samdy’s Restaurant (Cincinnati)
  • Sammis & Ohio Edison Power Plant (Stratton)
  • Sammis Power Station (Stratton)
  • Samsel Rope (Cleveland)
  • Samuel Austin and Sons Company (Cleveland)
  • Samuel Hannaford and Sons, Architects (Cincinnati)
  • Sam W. Emerson Company (Cleveland)
  • Sanders Hall (Cincinnati)
  • Sandover Inner City HUD (Columbus)
  • Sandusky and Interurban Electric Railway (Sandusky)
  • Sandusky Foundry & Machine Company (Sandusky)
  • Sandusky Gas and Electric Company (Sandusky)
  • Sandy’s Restaurant (Cincinnati)
  • Sanitary Plumbing Company (Columbus)
  • Sara Lee Food & Beverage (Cincinnati)
  • Sara Paper Company (Middleton)
  • Sauer Inc. (Columbus)
  • Sauers Corner, Inc. (Westlake)
  • Saunders and Esswein (Columbus)
  • Saunders and Esswein (Jackson)
  • Save Electric Company (Toledo)
  • Sawbrook Steel (Evendale)
  • Sawyer Research Products, Inc. (Eastlake)
  • Sawyers Research Prod (Eastlake)
  • Sayers and Scovill Company (Cincinnati)
  • S B Way (Lorain)
  • Schaefer Equipment Company (Warren)
  • Schantz and Schwind Brewing Company (Dayton)
  • Schenley Distillers Inc (Cincinnati)
  • Schlathen Brewing Company (Cleveland)
  • Schmeller Aluminum (Cleveland)
  • Schmeller Foundry (Cleveland)
  • Schmidt & Sons, Inc. (Cleveland)
  • Schriber Sheetmetal (Akron)
  • Schulte Brass (Cincinnati)
  • Schweitzer Brothers (Cincinnati)
  • Schweizer – Dipple (Cleveland)
  • Scientific Cast Producers (Cleveland)
  • Scioto Ordnance Plant (Marion)
  • Scm Chemical Glidden Corporation (Cleveland)
  • Scm Chemicals Plant North 2 (Geneva)
  • Scm Corporation (Cleveland)
  • Scocos Plumbing & Htg (Cleveland)
  • Scocos Plumbing Company – Nasa Erb Building (Cleveland)
  • Scott & Fetzer (Bedford)
  • Scott High School (Toledo)
  • Scranton Greenhouse (Cleveland)
  • Sears, Chapel Hill Shopping Center (Akron)
  • Sears Roebuck & Company (Cincinnati)
  • Sebring Pottery Company (Sebring)
  • Sebring Tire (Canton)
  • Second Church of Christ Scientist (Toledo)
  • Second National Bank Building (Toledo)
  • Seiberling Plant (Akron)
  • Seiberling Plant (Barberton)
  • Seiberling Rubber (Canton)
  • Seiberling Tire & Rubber (Barberton)
  • Selby Shoe Company (Portsmouth)
  • Sement Solvay (Ironton)
  • Semet-Solvay Company (Bellaire)
  • Semet Solvay Company (Ironton)
  • Senco Products (Cincinnati)
  • Seneca Tape (Cleveland)
  • Service Products, Inc. (Athens)
  • Service Products, Inc. (Columbus)
  • Service Products, Inc. (Toledo)
  • Service Systems (Cleveland)
  • Servomation-Tibbals (Cincinnati)
  • Seventh St Tire (Cincinnati)
  • Severstal Warren (Warren)
  • Severstal Wheeling, Incorporated (Martins Ferry)
  • Sewage Treatment Plant (Columbus)
  • Sewell Avery (Lorain)
  • Shaker Company (Cleveland)
  • Sharon Steel (Louisville)
  • Sharon Steel (Warren)
  • Sharon Steel Corp (Lowellville)
  • Sharon Steel Corporation (Masury)
  • Sharon Steel Hoop Company (Youngstown)
  • Sharpsville Furnace Company (Cleveland)
  • Shartle Brothers Machine Company (Cleveland)
  • Shartle Brothers Machine Company (Middleton)
  • Shartle Machine Company (Columbus)
  • Sheet & Tube Office Building (Youngstown)
  • Sheet Metal Dept (Mansfield)
  • Shelby Dept of Utilities (Shelby)
  • Shelby Municipal Light Plant (Shelby)
  • Shell Chemical (Marietta)
  • Shell Chemical Company (Belpre)
  • Shell Oil (Cincinnati)
  • Shell Oil Company (Belpre)
  • Shell Petroleum Corporation (Cleveland)
  • Shenango (Columbus)
  • Shenango Inc. (Dover)
  • Shepherd Chemical Company (Norwood)
  • Sheraton Alms Hotel (Cincinnati)
  • Sheriff Street Market and Storage Company (Cleveland)
  • Sherium Metals (Toledo)
  • Sherman-Williams Company (Cleveland)
  • Shermer-Schneider (Cleveland)
  • Sherwin-Williams Company (Cleveland)
  • Sherwin Williams Company (Ashtabula)
  • Shields-Midwestern (Cleveland)
  • Shillitos Department Store (Cincinnati)
  • Shillitos Parking Garage (Cincinnati)
  • Shuler and Benninghofen (Fremont)
  • Siberling Rubber (Akron)
  • Siemens (Lebanon)
  • Siemens-Allis (Norwood)
  • Siemens Corp (Norwood)
  • Signode Corporation (Cincinnati)
  • Silver Fleece Inc. (Port Clinton)
  • Sinclair Refinery (Cleveland)
  • Sinton Hotel (Cincinnati)
  • Sisters of Charity (Cincinnati)
  • Sisters of Charity Good Samaritain Hospital (Dayton)
  • Skeldon Engineering Company (Toledo)
  • Skelly Oil (Ironton)
  • Skrl Die Casting Inc. (Eastlake)
  • S K Wayne Tool Company (Defiance)
  • Smith-Ody (Cleveland)
  • Smith Agriculcural Chemical Company (Columbus)
  • Smith Brewing Company (Youngstown)
  • Smith Warner, Inc. (Cleveland)
  • Smp Castings (Wickliffe)
  • Smp Precisions (Wickliffe)
  • Smurfit Stone Corp (Coshocton)
  • Smurfit Stone Corporation (Middleton)
  • Smylie Bros Company Cedar Apartments (Cleveland)
  • Snak Shack (Cincinnati)
  • Snider Preserve Company (Fremont)
  • Snow Filtration (Cincinnati)
  • Society National Bank (Cleveland)
  • Sodexho (Youngstown)
  • Sohio Chemical Company (Lima)
  • Sohio Refinery (Toledo)
  • Solid Steel Company (Alliance)
  • Solid Steel Company (Cleveland)
  • Solid Waste Auth Central Ohio (Columbus)
  • Solon Veterinary Hospital (Solon)
  • Solvay Process Company (Ironton)
  • Solvay Process Company (South Point)
  • Somers Corporation (Celina)
  • Sommerfeld Heat Treating (Cleveland)
  • Sommers Rubber (Cleveland)
  • Sonic Wright Patterson Air Force Base (Dayton)
  • Sorg Paper Company (Middleton)
  • Sorg Paper Company (South Point)
  • Sorg Paper Mosinee Paper (Middleton)
  • Sorg Pulp Company (Middleton)
  • Sorp Paper (Middleton)
  • Sorq Pulp Company Ltd (Middleton)
  • South Bend Carton Company (Cleveland)
  • Southeastern Correctional Facility (Lancaster)
  • Southerly Sewage (Cleveland)
  • Southerly Sewage Treatment Plant (Cleveland)
  • Southern Alkali Corporation (Barberton)
  • Southern Ohio Bank (Cincinnati)
  • Southern Ohio Electric (Delaware)
  • Southern Ohio Insulation Company (Chillicothe)
  • South High School (Cleveland)
  • South High School (Willoughby)
  • South Ohio Oil Company (Lima)
  • South Ordance (South Point)
  • South Point Ethanol (South Point)
  • South Point Plant (South Point)
  • Southwestern Portl Cement Company (Fairborn)
  • Space Comfort (Cleveland)
  • Specialty Steels Division (Zanesville)
  • Spencer Manufacturing (Salem)
  • Spicer Manufacturing (Toledo)
  • Spike Ind. (Springfield)
  • Spiral Binding (Cleveland)
  • Spohn Corp (Cleveland)
  • Spohn Corp (Shaker Heights)
  • Spohn Htg & Vent Company (Cleveland)
  • Sport Products, Inc. (Cincinnati)
  • Springdale Sausage Processing (Cincinnati)
  • Springfield Light Heat and Power Company (Springfield)
  • Springfield Manufacturing (Canton)
  • Springfield Manufacturing and Power Plant (Springfield)
  • Springfield Railway Company (Springfield)
  • Springfield Troy and Prana Intererban Rr (Springfield)
  • Springfield Water Works (Springfield)
  • Spun Steel Div (Lorain)
  • St. Alexis Hospital (Cleveland)
  • St. Ann’s Hospital (Cleveland)
  • St. Bernard High School (Saint Bernard)
  • St. Francis Convent (Canton)
  • St. Joseph Hospice (Canton)
  • St. Joseph Hospital (Lorain)
  • St. Joseph School Addition (Canton)
  • St. Mary’s Manufacturing Company (Saint Marys)
  • St. Mary’s Municipal Lights Plant (Saint Marys)
  • St. Michael’s Hospital (Cleveland)
  • St. Paul Church (Cincinnati)
  • St. Paul’s Methodist Church (Tiffin)
  • St. Regis Paper Company (Coshocton)
  • St. Thomas Aquinas High School (Canton)
  • St. Thomas Hospital (Canton)
  • St. Vincent Charity Hospital (Cleveland)
  • St. Vincent Medical Center (Toledo)
  • St. Vincents Hospital (Toledo)
  • Staley Manufacturing. Company (Painesville)
  • Stamberger Company (Ashtabula)
  • Standarad Oil Office & Lab (Cleveland)
  • Standard Advertising Company (Coshocton)
  • Standard Asbestos Manufacturing & Insulating Company (Cleveland)
  • Standard Asbestos Manufacturing Company (Cleveland)
  • Standard Brands (Cincinnati)
  • Standard Brands Incoporated (Napoleon)
  • Standard Brewing Company (Cleveland)
  • Standard Brick Company (Cleveland)
  • Standard Chain Company (Columbus)
  • Standard Iron Company (Bridgeport)
  • Standard Light and Power Company (Fostoria)
  • Standard Oil (Lorain)
  • Standard Oil Company (Lima)
  • Standard Oil Refinery (Cleveland)
  • Standard Oil Refinery (Lima)
  • Standard Oil Refinery (Toledo)
  • Standard Oil Research (Cleveland)
  • Standard Piping (Cleveland)
  • Standard Products Company (Port Clinton)
  • Standard Register Company (Heath)
  • Standard Silicate Company (Cincinnati)
  • Standard Tire Company (Willoughby)
  • Standard Tool Company (Cleveland)
  • Standard Welding Company (Cleveland)
  • Stark County Jail (Canton)
  • Stark Electric Railroad Company (Alliance)
  • Stark Rolling Mill Company (Canton)
  • Stark School (Canton)
  • Starr Cty Jail (Cleveland)
  • Star Rubber Company (Akron)
  • State Office Tower (Columbus)
  • State of Ohio (Oxford)
  • State of Ohio Agricultural Experiment Station (Wooster)
  • Statler Hotel (Cleveland)
  • Stauffer Chemical (Moraine)
  • Stauffer Chemical Company (Ashtabula)
  • Stauffer Chemical Company (Perry)
  • Std Oil Company (Cleveland)
  • Std Oil Pilot Plant (Cleveland)
  • Steam Vanadium Corporation (Canton)
  • Stearns and Foster Company (Cincinnati)
  • Stearns and Foster Company (Lockland)
  • Stearns Tech. Textiles (Lockland)
  • Stearns Technical Textile (Cincinnati)
  • Stearns Technologies (Cincinnati)
  • Steel Buildings Company (Clyde)
  • Steel Company of Canada (Fremont)
  • Steel Door (Youngstown)
  • Steele High School (Dayton)
  • Steel Improvement & Forge Company (Cleveland)
  • Steel Making Area Basic Oxygen Shop (Middleton)
  • Steinman and Meyer Furniture Company (Cincinnati)
  • St Elizabeth Hospital (Youngstown)
  • Sterling Grinding Wheel Company (Tiffin)
  • Sterling Paper Company (Fremont)
  • Sterling Salem Company (Salem)
  • Sterling Works (Barberton)
  • Steubenville Ice Company (Steubenville)
  • Steubenville Mingo and Ohio Valley Tract Company (Brilliant)
  • Steubenville Roofing & Siding (Steubenville)
  • Steubenville Traction and Light Company (Steubenville)
  • Stewart Bolling Company (Cleveland)
  • Stillwell-Bierce and Smtih Vaile Company (Dayton)
  • Stirling Ave Plant (Barberton)
  • Stivers Manual Training High School (Dayton)
  • St Judd Church (Cleveland)
  • Stoddard Manufacturing Company (Dayton)
  • Stoker At Wittenburg College (Springfield)
  • Stolle Company (Cleveland)
  • Stone & Webster (Euclid)
  • Stone Container Corporation (Coshocton)
  • Stouffer Foods (Solon)
  • St Paul’s Church (Akron)
  • Strong, Carlisle & Hammond Company (Cleveland)
  • Struthers Finance Company (Struthers)
  • Struthers Furnace Company (Cleveland)
  • Struthers Ice Company (Struthers)
  • Struthers Iron and Steel Company (Struthers)
  • Struthers Works (Struthers)
  • Stuart Generating Station (Aberdeen)
  • Stuart Station (Manchester)
  • Stuart’s Store (Cincinnati)
  • Suburban Heating (Cleveland)
  • Suburban Light and Power Company (Alliance)
  • Suburban Power Piping (Cleveland)
  • Suburban Traction Company (Cincinnati)
  • Sucher Packing Company (Dayton)
  • Sun Corp (Springfield)
  • Suncraft Products (Cleveland)
  • Sunoco, Incorporated (Haverhill)
  • Sunoco Ohio (Toledo)
  • Sun Oil Company (Lima)
  • Sun Oil Company Refinery (Toledo)
  • Sun Oil Plant (Toledo)
  • Superior Brass (Cleveland)
  • Superior Building (Cleveland)
  • Superior Cast (Cleveland)
  • Superior Cement (Ironton)
  • Superior Dairy, Incorporated (Colesville)
  • Superior Dairy Company (Canton)
  • Superior Die (Youngstown)
  • Superior Die Casting (Cleveland)
  • Superior Industries (Cleveland)
  • Superior Metal Treating (Cleveland)
  • Superior Sheet Steel (Canton)
  • Superior’s Brand Meats, Inc. (Massillon)
  • Surface Combustion Corp (Toledo)
  • Swasey Company Boiler House (Cleveland)
  • Sweland Blding (Cleveland)
  • Swift & Company (Columbus)
  • Swift & Company (Greenville)
  • Swift and Company (Cleveland)
  • Swift Dry Cleaners (Cleveland)
  • Sycamore Medical Center (Miamisburg)
  • Sylvester & Company (Cleveland)
T
  • T. J. Cookson (Cincinnati)
  • T. J. Hanley (Coshocton)
  • T. O. Murphy Company (Avon Lake)
  • T.O. Murphy Warehouse (Oberlin)
  • Tait Power Plant (Miamisburg)
  • Tait Power Plant/Dp&L (Dayton)
  • Tampa Bay Engineers (Tiffin)
  • Tanker Transway (Lorain)
  • Tanners Creek (Cincinnati)
  • Tappan Stove Company (Mansfield)
  • Taylor (Warren)
  • Taylor and Thomas (Niles)
  • Taylor Chair Company (Bedford)
  • Technical Center (Granville)
  • Technical Research Center (Granville)
  • Tec Lab (Cleveland)
  • Teledyne Cae (Toledo)
  • Teledyne Isotopes, Nasa (Sandusky)
  • Teledyne Ohio Steel (Lima)
  • Tennis Railway Equipment Company (Cincinnati)
  • Terex (Cleveland)
  • Terex (Hudson)
  • Terminal Tower (Cleveland)
  • Ternstedt Div G.M.C. (Cleveland)
  • Ternstedt Division (Elyria)
  • Terrace Hilton Hotel (Cincinnati)
  • Terrace Plaza Hotel (Cincinnati)
  • Terstedt Div Gmc (Columbus)
  • Texas Eastern Transmission Corporation (Athens)
  • Textile Leather Company
  • T Gray and Company (Piqua)
  • Theatrical Equipment (Cleveland)
  • The Cleve. Trencher Company (Cleveland)
  • The Factory Power Company (Cincinnati)
  • The Lanly Company (Cleveland)
  • Theodor Kundtz Company (Cleveland)
  • The Ody Company (Cleveland)
  • The Philip Carey Manufacturing Company (Lockland)
  • Thermoplastics (Cleveland)
  • The Timken Company (Colesville)
  • The Timken Corporation (Canton)
  • Thew Automatic Shovel Company (Lorain)
  • The Witt Company (Cincinnati)
  • Thomas Emery Sons Inc (Cincinnati)
  • Thomas Furnace Company (Niles)
  • Thomas Jefferson Elementary School (Ashtabula)
  • Thomas Jefferson Elementary School (Ashtabula Harbor)
  • Thomas Phillips Company (Akron)
  • Thomas Steel (Youngstown)
  • Thomas Steel Company (Niles)
  • Thomas Steel Company (Warren)
  • Thomas Steel Strip Corp (Warren)
  • Thomas T Gaff (Cincinnati)
  • Thomas Wilson (Lorain)
  • Thompson Products, Inc. (Cleveland)
  • Thompson Products Willoughby Works (Willoughby)
  • Thompson Ramo-Woolridge, Inc (Euclid)
  • Thompson Ramo Products (Cleveland)
  • Thompson Ramo Wooldbridge (Cleveland)
  • Thornton Company (Cleveland)
  • George S. Rider Company (Cleveland)
  • Tidd Plant (Brilliant)
  • Tiffin Edison Electrical Company (Tiffin)
  • Tiffin State Hospital (Tiffin)
  • Tillotson Manufacturing Company (Toledo)
  • Timben Roller Bearing Company (Columbus)
  • Timet Metal Corporation of America (Toronto)
  • Timken Bearing (New Philadelphia)
  • Timken Company (Canton)
  • Timken Company (Massillon)
  • Timken Company (Warren)
  • Timken Mercy Hospital (Canton)
  • Timken Mercy Medical Center (Canton)
  • Timken Products (Canton)
  • Timken Roller Bearing Company (Bucyrus)
  • Timken Roller Bearing Company (Canton)
  • Timken Steel Harrison Plant (Canton)
  • Timken “Gambrinus” Bearing Plant (Canton)
  • Timms Spring (Elyria)
  • Tinnerman Products Company (Parma)
  • Titanium Metals Corporation of America (Toronto)
  • Titanium Plant (Ashtabula)
  • Todd Insulation & Remodeling (Youngstown)
  • Todd Welding Company (Cleveland)
  • Toldeo Edison Company (Port Clinton)
  • Toledo, Columbus and Cincinnati Ray. Company (Toledo)
  • Toledo, Fostoria and Findlay Railway (Fostoria)
  • Toledo, Port Clinton and Lakeside Railway (Port Clinton)
  • Toledo, St Louis and Western Rr Company (Toledo)
  • Toledo and Indiana Railroad (Toledo)
  • Toledo and Ohio Central Railroad (Kenton)
  • Toledo and Western Railway (Toledo)
  • Toledo Bee Company (Toledo)
  • Toledo Blade (Toledo)
  • Toledo Bolt and Nut Company (Toledo)
  • Toledo Brewing and Malting Company (Toledo)
  • Toledo Bridge and Crane Company (Toledo)
  • Toledo Clinic (Toledo)
  • Toledo Consolidated St. Railway Company (Toledo)
  • Toledo Edison Company (Dilles Bottom)
  • Toledo Edison Company (Toledo)
  • Toledo Fremont and Norwalk Electric Railway Company (Fremont)
  • Toledo Furnace Company
  • Toledo Gas Electric and Heating. Company (Toledo)
  • Toledo Grain and Milling Company (Toledo)
  • Toledo Heating and Lighting Company (Toledo)
  • Toledo Hospital (Toledo)
  • Toledo Machine Tool Company (Toledo)
  • Toledo Marine Terminals, Inc. (Toledo)
  • Toledo Massillon Bridge Company (Toledo)
  • Toledo Newspaper Company (Toledo)
  • Toledo Plant (Toledo)
  • Toledo Post Cement Company (Toledo)
  • Toledo Railways and Light Company (Toledo)
  • Toledo Refinery (Toledo)
  • Toledo Sewage Plant (Toledo)
  • Toledo Shipbuilding Company (Toledo)
  • Toledo Shot Div (Toledo)
  • Toledo State Hospital (Toledo)
  • Toledo Steel Casting Company (Toledo)
  • Toledo Steel Tube (Toledo)
  • Toledo Storage Ice Company (Toledo)
  • Toledo Water Works (Toledo)
  • Tomco Metal (Cleveland)
  • Tool Steel Gear & Pinton (Cincinnati)
  • Topco Company (Salem)
  • Toroidal Winding (Euclid)
  • Toronto Paper Manufacturing Company (Toronto)
  • Toronto Power Station (Toronto)
  • Toronto Station (Akron)
  • Tower East Office Building (Shaker Heights)
  • Towmotor (Cleveland)
  • Towmotor Corporation (Mentor)
  • Traction Building (Cincinnati)
  • Trailer Company of America (Cincinnati)
  • Trailmobile (Cincinnati)
  • Transmission Division (Toledo)
  • Transportation Office (Columbus)
  • Transue and Williams Steel Forging Company (Alliance)
  • Tresler Oil Tank (Cincinnati)
  • Tri State Railway and Electric Company (East Liverpool)
  • Tri State Railway and Electric Company (Steubenville)
  • Triumph Manufacturing Company (Cincinnati)
  • Tri Way School (Canton)
  • Troy Carriage Sun Shade Company (Troy)
  • Troy Electric Plant Department (Troy)
  • Troy Laundering Company (Columbus)
  • Troy Laundry Company (Cleveland)
  • Troy Sunshade Company (Troy)
  • True Temper Corp (Cleveland)
  • True Temper Corp (Geneva)
  • True Temper Group (Ashtabula)
  • Trumbell Public Services Company (Warren)
  • Trumbull Cliffs Furnace Company (Warren)
  • Trumbull Public Service Company (Warren)
  • Trumbull Service Company (Warren)
  • Trumbull Steel Company (Warren)
  • Truscon Steel Company (Youngstown)
  • Trussed Concrete Steel Company (Youngstown)
  • Trw, Inc. (Cleveland)
  • Trw, Inc. (Euclid)
  • Trw, Inc. (Willoughby)
  • Trw Euclid Powerhouse (Euclid)
  • Trw Valve (Cleveland)
  • Tucker Anthony and Company (Hebron)
  • Turbo Blower & Steam Generating Fac (Lorain)
  • Turbojet Systems Inc (Perrysburg)
  • Tuscarawas Valley High School (Canton)
  • Twinsburg Pumping Station East Ohio Gas Company (Twinsburg)
  • Twinsburg Pumping Station Heating (Canton)
  • Tyhis Gardner Paper and Manufacturing Company (Middleton)
  • Tyler Manufacturing (Mentor)
  • Tyson Roller Bearing Corporation (Massillon)
  • Tytus Paper Company (Middleton)
U
  • U-Brand Corporation (Ashland)
  • U. S. Army Reserve Center (Cleveland)
  • U.S. Engineers (Wellsville)
  • U.S. Industrial Chemicals Company (Ashtabula)
  • U.S. Naval Ordnance Plant (Canton)
  • U.S. Plywood Champion Pa. (Fremont)
  • U.S. Post Office (Cleveland)
  • U. S. Post Office Building (Toledo)
  • U. S. Post Office Terminal (Cincinnati)
  • U.S. Reduction Company (Toledo)
  • U. S. Rubber Company, Inc. (Painesville)
  • U.S. Shoe Corporation (Cincinnati)
  • U.S. Steel (Fairborn)
  • U.S. Steel (Masury)
  • U.S. Steel (Youngstown)
  • U.S. Steel Corp (Cincinnati)
  • U.S. Steel Corporation (Canton)
  • U.S. Steel Corporation (Cleveland)
  • U.S. Steel Roll & Mach. (Canton)
  • Union Boiler (Brilliant)
  • Union Carbide & Carbon Chemical Corporation (Cleveland)
  • Union Carbide & Carbon Chemical Corporation (Marietta)
  • Union Carbide Bakelite (Belpre)
  • Union Carbide Chemical (Ashtabula)
  • Union Carbide Corporation (Ashtabula)
  • Union Carbide Corporation (Cleveland)
  • Union Carbide Corporation (Fostoria)
  • Union Carbide Corporation (Fremont)
  • Union Carbide Electro Metallurgical (Ashtabula)
  • Union Carbide Metals Company (Ashtabula)
  • Union Carbide Metals Company (Marietta)
  • Union Central Life Insurance Company (Cincinnati)
  • Union Distilling Company (Carthage)
  • Union Gas and Electric Company (Cincinnati)
  • Union Heat Light and Power Company (Cincinnati)
  • Union Iron and Steel Company (Ironton)
  • Union Iron and Steel Company (Youngstown)
  • Union Metal (Canton)
  • Union Rolling Mill Company (Cleveland)
  • Union Rolling Mill Company (Newburgh)
  • Union Salt Company (Cleveland)
  • Union Stock Yards (Cleveland)
  • Union Terminal Building (Cleveland)
  • Union Trust Building (Cincinnati)
  • Union Wax Paper and Parchment Company (Fremont)
  • Uniroyal Incorporated (Painesville)
  • Uniroyal Rubber Plant (Painesville)
  • Unitcast Corporation (Toledo)
  • Unitcast Division (Toledo)
  • United Alloy Steel Corp (Canton)
  • United Brethren Public Company (Dayton)
  • United Carbide Chemical & Plastic (Marietta)
  • United Constructors, Inc. (Toronto)
  • United Engineering & Foundry Company (Youngstown)
  • United Engineering (Canton)
  • United Furnace Company (Canton)
  • United Power Company (East Liverpool)
  • United Salt Company (Cleveland)
  • United Sheet Metal Company (Columbus)
  • United States Aluminum Company (Cleveland)
  • United States Army Engineers (Dayton)
  • United States Playing Cards (Cincinnati)
  • United States Playing Cards (Norwood)
  • United States Post Office Job (Canton)
  • United States Printing Company (Cincinnati)
  • United States Steel Corporation (Lorain)
  • United States Steel Corporation (Youngstown)
  • United States War Department (Fairfield)
  • United Steel Company (Canton)
  • Universal Atlas Cement (Fairborn)
  • Universal Potteries Inc (Cambridge)
  • University Hospitals of Cleveland (Cleveland)
  • University of Akron (Akron)
  • University of Cincinnati (Cincinnati)
  • University of Dayton (Dayton)
  • University of Wooster (Wooster)
  • Up-To-Date Laundry Company (Cleveland)
  • Upper Union Mills (Youngstown)
  • Upson Nut Company (Cleveland)
  • Upson Walton (Cleveland)
  • Uran Storage (South Point)
  • Urbana Light Company (Urbana)
  • Ursilene College (Cleveland)
  • Ursuline College (Tiffin)
  • U S Air Porce Heavy Press Facilities (Cleveland)
  • U S Alum. Corporation (Mansfield)
  • U S Cast Iron Pipe and Laundry Company (Addyston)
  • U S Industrial Chemical Corp (Ashtabula)
  • U S Reduction Company (Toledo)
  • U S Steel (Avon Lake)
  • U S Steel (Cleveland)
  • U S Steel Corp (Lorain)
  • U S Steel Corp (Youngstown)
  • U S Steel Tube (Lorain)
V
  • Vaccuum Degassing (Middleton)
  • Val Decker Packing Company (Piqua)
  • Valley Job (Canton)
  • Vanadium Corporation (Cambridge)
  • Van Camp Packing Company (Bryan)
  • Vandalia Butler Board of Education (Vandalia)
  • Van Sickle Ind. (Avon)
  • Vari-Systems (Cleveland)
  • Variety Stamping (Cleveland)
  • Variety Steel Fabricators, Inc. (Cleveland)
  • Veterans Administration Hospital (Brecksville)
  • Veterans Administration Hospital (Chillicothe)
  • Veterans Administration Hospital (Cleveland)
  • Veteran’s Affairs Hospital (Cincinnati)
  • Vicksburg Railroad Power and Manufacturing Company (Akron)
  • Victoreen Instrument (Cleveland)
  • Victor Safe and Lock Company (Norwood)
  • Victory Metal (Cleveland)
  • Viking Glass (Ironton)
  • Village of Board of Public Affairs (Orrville)
  • Vindicator Printing Company (Youngstown)
  • Vistron (Lima)
  • Vistron Corp (Cleveland)
  • Vocation Guidance (Cleveland)
  • Vulcan Building (Cleveland)
  • Vulcan Copper & Supply Company (Cincinnati)
  • Vulcan Materials Company (Sandusky)
  • Vulcan Team Track (Toledo)
W
  • W.A. Kearns Packing Company (Mansfield)
  • W. B. Oglesby Paper Company (Middleton)
  • W.B. Pallock Company (Youngstown)
  • W. Bingham Company (Cleveland)
  • W.E. Plechaty (Cleveland)
  • W.F. Murdock (Akron)
  • W.H. Davey (Massillon)
  • W.H. Hanna and Company (Cleveland)
  • W.H. Sammis Generation Station (Stratton)
  • W.H. Zimmer Station (Moscow)
  • W.J. Thomas (Shadyside)
  • W. M. Pattison Supply Company (Cleveland)
  • W.P. Gibson Shop (Warren)
  • W.S. Carroll (Bellaire)
  • W. S. Lowe and Company (Lima)
  • W.S. Tyler Company (Cleveland)
  • Wabash Smelthing (Cleveland)
  • Wadsworth Light and Water Company (Wadsworth)
  • Wadsworth Salt Company (Wadsworth)
  • Wagner Awning (Cleveland)
  • Walden Book Store – Northgate Mall (Cincinnati)
  • Waldron Firebrick & Insulation (Cleveland)
  • Walgreen Drug Store (Cincinnati)
  • Walker Heat (Cleveland)
  • Walker Processing (Cleveland)
  • Wallace & Tiernan Inc. (Canton)
  • Walnut Hills High School (Cincinnati)
  • Walter C Beckjord Station (New Richmond)
  • Waltz Furnace Company (Cincinnati)
  • Warder Bushnell and Glessner Company (Springfield)
  • Wardlow Thomas and Company (Middleton)
  • Warner & Swasey Company (Cleveland)
  • Warner and Swasey Company (Cleveland)
  • Warnick and Justus (Massillon)
  • Warren City Tank and Boiler Company (Warren)
  • Warren Consolidated (Warren)
  • Warren Dock (Warren)
  • Warren Electric Manufacturing Company (Sandusky)
  • Warren Plant (Warren)
  • Warren Pump & Supply (Warren)
  • Warren Steel (Warren)
  • Warren Water and Light Company (Warren)
  • Warren Works (Warren)
  • Washington High School (Canton)
  • Water and Light Plant (Saint Bernard)
  • Water Street Station (Toledo)
  • Waterworks (Newark)
  • Water Works (New Philadelphia)
  • Water Works Constr. Company and Eastrn Tube Company (Zanesville)
  • Water Works Pumping Station (Urbana)
  • Water Works Trustees City of Wellsville Ohio (Wellsville)
  • Wationalworks (Cleveland)
  • Watteredge-Uniflex (Avon Lake)
  • Wausaw Mosinee (Middleton)
  • Wayne Coal Company (Steubenville)
  • Wayne Mining Company (Cambridge)
  • WB Cowles (Cleveland)
  • WCET-Tv (Cincinnati)
  • WCI Steel (Warren)
  • Wean United (Canton)
  • Wean United Engineering Inc. (Youngstown)
  • Wearn Building Univ Hosp (Cleveland)
  • Webb Corp (East Liverpool)
  • Webb Fabricators (Cleveland)
  • Webco (Cleveland)
  • Webster Manufacturing Company (Tiffin)
  • Wehner Brewing Company (Dayton)
  • Weideman Company (Cleveland)
  • Weir Frog Company (Cincinnati)
  • Weir Kilby Corporation (Norwood)
  • Weirton Steel Company Division (Steubenville)
  • Weiskopf Division (Cincinnati)
  • Weiss Industries (Mansfield)
  • Welco Industries (Cincinnati)
  • Welded Ring (Cleveland)
  • Weldinghouse (Cleveland)
  • Weldon Rubber (Warren)
  • Weld Rod Dept (Barberton)
  • Wellman-Mcdowell (Cleveland)
  • Wellman-Seaver Morgan Company (Cleveland)
  • Wellman Company (Cleveland)
  • Wellman Engineering Company (Cleveland)
  • Wellman Leaver Engineering Company (Cleveland)
  • Wellman Seaver-Margan Company (Cleveland)
  • Wellman Seaver Morgan Company (Akron)
  • Wellman Seaver Morgan Company (South Akron)
  • Wellston Iron Furnace Company (Wellston)
  • Wellston Steel and Iron Company (Wellston)
  • Wellsville Foundry (Wellsville)
  • Wellsville Plate and Sheet Iron Company (Wellsville)
  • Welton Rubber (Warren)
  • Werner Company (Akron)
  • Werner G Smith (Cleveland)
  • West 40Th Street School (Lorain)
  • Westcott Motor Car Company (Springfield)
  • West End Lumber (Portsmouth)
  • Western and Southern Life Ins. Company (Cincinnati)
  • Western Bowl (Cincinnati)
  • Western College Library (Oxford)
  • Western Conduct Manufacturing (Youngstown)
  • Western Controls (Willoughby)
  • Western Electric Company (Cincinnati)
  • Western Electric Company (Solon)
  • Western Electric Company, Inc. (Columbus)
  • Western Enterprise (Avon Lake)
  • Western Hills High School (Cincinnati)
  • Western Hills Pumping Sta (Cincinnati)
  • Western Mineral Wool Company (Cleveland)
  • Western Ohio Railway Company (Akron)
  • Western Reserve Care Center (Youngstown)
  • Western Reserve National Bank (Cleveland)
  • Western Reserve Tunnel (Cleveland)
  • Western Reserve University (Cleveland)
  • Westgate Mall (Cleveland)
  • Westgate Shopping Center (Cleveland)
  • Westinghouse (Canton)
  • Westinghouse Bendix (Elyria)
  • Westinghouse Electric & Manufacturing (Cleveland)
  • Westinghouse Electric Company (Toledo)
  • Westinghouse Electric Corporation (Columbus)
  • Westinghouse Electric Products Company (Mansfield)
  • Westlake High School (Westlake)
  • West Ninth St. Terminal Warehouse (Cleveland)
  • West River Auto (Elyria)
  • Wheeling-Pittsburgh Steel Corporation (Portsmouth)
  • Wheeling-Pittsburg Steel (Martins Ferry)
  • Wheeling-Pittsburg Steel (Mingo Junction)
  • Wheeling-Pittsburg Steel (Steubenville)
  • Wheeling-Pittsburg Steel (Yorkville)
  • Wheeling and Lake Erie Coal Company (Elyria)
  • Wheeling and Lake Erie Railroad Company (Huron)
  • Wheeling Corrugating Works (Martins Ferry)
  • Wheeling Hospital Job (Canton)
  • Wheeling Lake Erie Railroad Company (Cleveland)
  • Wheeling Pittsburgh Steel (Yorkville)
  • Wheeling Pittsburgh Steel Corp (Steubenville)
  • Wheeling Pittsburgh Steel South Plant (Mingo Junction)
  • Wheeling Steel Corp (Martins Ferry)
  • Wheeling Steel Corp (Yorkville)
  • Wheeling Steel Corporation (Mingo Junction)
  • Wheeling Steel Corporation (Portsmouth)
  • Wheeling Steel Corporation (Steubenville)
  • Wherle Company (Newark)
  • Whirlpool Corporation (Clyde)
  • Whirlpool Seeger Corp (Clyde)
  • Whitaker Glessner Company (Portsmouth)
  • White Company (Cleveland)
  • White Cross Hospital (Columbus)
  • Whiteley, Fassler and Kelly Company (Springfield)
  • White Motor Company (Cleveland)
  • White Sewing Machine Company (Cleveland)
  • White Superior Div White Motor Company (Springfield)
  • Whiting Corporation (Lima)
  • Whitman and Barnes Manufacturing Company (Akron)
  • Whitman and Barnes Manufacturing Company (Canton)
  • Whitmore Robinson and Company (Akron)
  • Whittier Junior High School (Lorain)
  • WHK Broadcasting Studio (Cleveland)
  • Wickliffe Plant (Wickliffe)
  • Widlar Company (Cleveland)
  • Widows & Orphans Home (Cincinnati)
  • Wielys Overland Company (Toledo)
  • Wildcraft Products (Dayton)
  • Wilfred Sykes (Lorain)
  • Wilkins Air Force Base (Shelby)
  • Wilkoff S & Sons Company (Cleveland)
  • Willard Storage Battery Company (Cleveland)
  • William Combs Construction (Dayton)
  • William Lay Company (Akron)
  • William Pollack Company (Youngstown)
  • William Powell (Cincinnati)
  • William Reiss Steamship (Cleveland)
  • Williams Manufacturing Company (Portsmouth)
  • William S Merrell Company (Reading)
  • Willoughby High School (Willoughby)
  • Willoughby Works (Willoughby)
  • Willson Dairy (Cincinnati)
  • Willys-Overland Company (Elyria)
  • Willys Motors, Inc (Toledo)
  • Willys Overland Company (Toledo)
  • Wilson and Mcgallay Tobacco Company (Middleton)
  • Wilson Rubber Company (Canton)
  • Wiltsie Realty Company (Toledo)
  • Winnen Incinerator (Bedford)
  • Winton Forest School (Cincinnati)
  • Winton Heat (Cleveland)
  • Winton Heat (Rocky River)
  • Winton Hill Technical Center (Cincinnati)
  • Winton Motor Carriage Company (Cleveland)
  • Witco Chemical (Cleveland)
  • Withrow High School (Cincinnati)
  • Witt Company (Cincinnati)
  • Wittenburg College (Springfield)
  • Wm Focke\\\’s Sons Company (Dayton)
  • Wm H. Conklin Company (Columbus)
  • Wm Hamilton Sons Car Company (Newark)
  • Wm Pattison Supply Company (Cleveland)
  • W M Powell Company (Cincinnati)
  • Wood-Spencer Company (Cleveland)
  • Woodruff and Pausch Stone Company (Columbus)
  • Wood Shovel and Tool Company (Piqua)
  • Woolson Spice Company (Toledo)
  • Wooster College (Canton)
  • Wooster College (Wooster)
  • Wooster College Inn (Wooster)
  • Wooster Municipal Building (Canton)
  • Wooster Municipal Building (Wooster)
  • Wooster Water Works (Wooster)
  • World Publishing Company (Cleveland)
  • Worthington Turbine (Reading)
  • Wrenn Paper Company (Middleton)
  • Wright-Patterson Airforce Base (Dayton)
  • Wright-Patterson Air Force Base (Fairborn)
  • Wright Aeronautic Corporation (Lockland)
  • Wright Brothers Greenhouse Company (Toledo)
  • Wright Construction (Dayton)
  • Wright Field (Dayton)
  • Wright Patterson Air Force Base (Dayton)
  • Wright State Campus (Dayton)
  • Wright Wrench and Forging Company (Canton)
  • Wright Wrench Manufacturing Company (Canton)
  • WS Merrill Company (Reading)
  • WSPD Radio Broadcasting Studios (Toledo)
  • W T Burdell Trustee (Columbus)
  • WTE Corp (Akron)
  • Wunderlich Fabricating Company (Bedford)
  • Wynn Oil Company (Cincinnati)
X
  • Xcleve. Museum, Nat (Cleveland)
Y
  • Y & S Tool (Dayton)
  • YMCA (Canton)
  • YMCA (Cleveland)
  • YMCA (Lancaster)
  • YMCA Building (Dayton)
  • YMCA Hotel (Dayton)
  • Yoder Brothers Inc (Barberton)
  • Yoder Company (Cleveland)
  • Yost and Packard (Columbus)
  • Yost Construction Company (Youngstown)
  • Youngstown Airport (Youngstown)
  • Youngstown City Water Works (Youngstown)
  • Youngstown Concrete Sand and Stone Company (Youngstown)
  • Youngstown Foundry & Machine Company (Youngstown)
  • Youngstown Gas and Electric Company (Youngstown)
  • Youngstown Heating Company (Youngstown)
  • Youngstown Hospital Association North Side Hospital (Youngstown)
  • Youngstown Iron and Steel Company (Lowellville)
  • Youngstown Iron Sheet Tube Company (Youngstown)
  • Youngstown J. and S. Roofing Company (Youngstown)
  • Youngstown J. Sheet and Tube Company (Youngstown)
  • Youngstown Mahoning and Shenango Railway and Light Company (Youngstown)
  • Youngstown Manufacturing Company (Struthers)
  • Youngstown Manufacturing Company (Youngstown)
  • Youngstown Mazda Lamp Works (Youngstown)
  • Youngstown Municipal Company (Youngstown)
  • Youngstown Municipal Railway Company (Youngstown)
  • Youngstown Ohio Railroad Company (Leetonia)
  • Youngstown Plant (Youngstown)
  • Youngstown Pressed Steel Company (Warren)
  • Youngstown Sheet & Tube Company (Youngstown)
  • Youngstown Sheet and Tube Company (Campbell)
  • Youngstown Sheet and Tube Company (Struthers)
  • Youngstown Steel Door (Youngstown)
  • Youngstown Steel Tank Company (Youngstown)
  • Youngstown Water Company (Youngstown)
  • Youngstown Welding & Engineering (Youngstown)
  • Yountstown Heating Company (Youngstown)
Z
  • Zanesville Railway Light and Power Company (Zanesville)
  • Zeller Corp (Defiance)
  • Zimmer Generating Station (Moscow)
  • Zirconium Corporation (Solon)
  • Zurowski Greenhouse (Cleveland)

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