You or a loved one may have been exposed to asbestos at a past job. Use this alphabetical listing of known asbestos exposure sites in Ohio to find any companies you may have worked for.
| Name | City |
|---|
| A I Company | Marietta |
| A E Anderson | New Boston |
| A E Anderson | New Richmond |
| A P Green Services | Twinsburg |
| A T T Co. | Medina |
| A T T Co. | Portsmouth |
| A T T Co. | Sandusky |
| A. P. Tea Company | Ironton |
| A. E. Staley Manufacturing Co. | Grand River |
| A. E. Staley Manufacturing Co. | Painesville |
| A. Gottlieb Container | Cincinnati |
| A. H. Pugh Printing Company | Cincinnati |
| A. Shulman Company | Akron |
| A.c. Humko | Columbus |
| A.c. Williams | Ravenna |
| A.e. Burkhardt Company | Cincinnati |
| A.e. Staley Manufacturing Company | Painesville |
| A.e. Staley Manufacturing Company | Decatur |
| A.i. Research | Newark |
| A.i. Root Company | Medina |
| A.j. Phipps | Canton |
| A.k. Property Corporation | Canton |
| A.k. Property Corporation | Wooster |
| A.m. Byers Company | Girard |
| A.m. Higley Corp | Cleveland |
| A.o. Smith | Tipp City |
| A.p.i. Instrument | Chesterland |
| A.s. Taft Power Building | Cincinnati |
| Abb Automation, Incorporated | Wickliffe |
| Abb Automation, Incorporated | Wickliffe |
| Abex | Elyria |
| Abex Company Electro, Alloys Division | Elyria |
| Abex Corporation | Bedford |
| Abex Corporation | Cleveland |
| Abex Foundry | Lorain |
| Abitec Corporation | Columbus |
| Acacia Heat | Cleveland |
| Acands, Inc. | Huron |
| Acands, Inc. | Toledo |
| Acands, Inc. | Cleveland |
| Acands, Inc. | Cincinnati |
| Acands, Inc. | Columbus |
| Acands, Inc. | Bowling Green |
| Ace Metal | Cleveland |
| Acklin Stamping Company | Toledo |
| Acklin Stamping Company Plant | Toledo |
| Acme Machinery Company | Cleveland |
| Acme Power Company | Toledo |
| Acme Sash Door Company | Cincinnati |
| Acme Station | Toledo |
| Acme Stove Repair | Cleveland |
| Acme Wet Wash Laundry | Canton |
| Adams School | Youngstown |
| Addressograph Multigraph Corp. | Cleveland |
| Addressograph-multigraph Corporation | Euclid |
| Addressograph-multigraph Corporation | Cleveland |
| Addressograph-multigraph Corporation | Cleveland |
| Addressograph-multigraph Corporation | Cleveland |
| Addressograph-multigraph Corporation | Euclid |
| Admiral King High School | Lorain |
| Adrian L. Wallick | Columbus |
| Advance Bag Company | Middletown |
| Advance Drum Barrel | Cleveland |
| Advance Sales | Cleveland |
| Advance Tec. | Cleveland |
| Aep Beverly Power Plant (a/k/a Muskingham River Power Station; A/ic/a Ohio Power) | Beverly |
| Aep Beverly Power Plant (a/k/a Muskingham River Power Station; A/ic/a Ohio Power) | Beverly |
| Aep Gavin Power Station (cheshire Power Station) | Cheshire |
| Aep Gavin Power Station (cheshire Power Station) | Cheshire |
| Aep General James A. Gavin Plant | Cheshire |
| Aep General James A. Gavin Plant | Cheshire |
| Aep Kyger Creek Power Plant | Cheshire |
| Aep Kyger Creek Power Plant | Cheshire |
| Aero Products | Sandusky |
| Aerodyn Co. | Medina |
| Aeronautics | Cleveland |
| Aeronca Incorporated | Middletown |
| Aeronica Manufacturing | Middletown |
| Aeroproducts Division General Motors Corporation | Vandalia |
| Aeroquip Republic Rubber | Youngstown |
| Aerospace | Cleveland |
| Aetna Explosives Company, Incorporated | Gors |
| Aetna Iron And Steel Company | Bridgeport |
| Aetna Paper Company | Dayton |
| Aetna Paper Company Division Howard Paper Mills | Dayton |
| Aetna Rubber Company | Ashtabula |
| Aetna Rubber Company | Sandusky |
| Aetna Rubber Company | Cleveland |
| Aetna Standard Iron Steel Company | Bridgeport |
| Aetna Standard Iron Steel Company | Mingo Junction |
| Aetna Standard Iron Steel Company | Bridgeport |
| Aetna Standard Iron Steel Company | Bridgeport |
| Aetna Standard Iron Steel Company | Mingo Junction |
| Aetna Standard Iron Steel Company | Bridgeport |
| Aetna Standard Iron Steel Company | Mingo Junction |
| Aetna Welding | Cleveland |
| Air Injector Corp. | Cleveland |
| Air National Guard Facilities Modification Bldg. 932 Lockbourne A | Columbus |
| Air Nitrates Corporation | Cincinnati |
| Air Service Command | Fairfield |
| Airco | Sandusky |
| Airco * | Cleveland |
| Airco Plastics | Sandusky |
| Airco Plastics Prod | Sandusky |
| Airco Welding Products | Cleveland |
| Aircraft Braking Systems | Akron |
| Ajax Magnathermic | Warren |
| Ajax Magnethermic Corp. | Warren |
| Ajax Management | Warren |
| Ajax Manufacturing | Euclid |
| Ak Steel Corporation | Zanesville |
| Ak Steel Corporation | Middletown |
| Ak Steel Corporation, Boiler House #2 | Middletown |
| Akron And Cuyahoga Falls R.i. Company | Akron |
| Akron And Cuyahoga Falls R.i. Company | Cuyahoga Falls |
| Akron Brewing Company | Akron |
| Akron Brewing Company | Akron |
| Akron Childrens Hospital | Akron |
| Akron City Hospital | Akron |
| Akron City Hospital | Akron |
| Akron City Hospital | Akron |
| Akron City Hospital | Akron |
| Akron City Hospital, Permit 11032 | Akron |
| Akron Coal Company | Lore City |
| Akron Electric Company | Akron |
| Akron Gas Company | Akron |
| Akron Gasket Co | Tallmadge |
| Akron General Health | Akron |
| Akron General Hospital | Akron |
| Akron General Hospital | Akron |
| Akron General Hospital 400 Wabash Avenue | Akron |
| Akron General Hospital, 400 Wabash Ave. | 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 | Barberton |
| Akron Rubber Reclaiming Company | Akron |
| Akron Standard | Akron |
| Akron Standard | Barberton |
| Akron Standard Mold | Akron |
| Akron Steam Heating Company | Akron |
| Akron Steel Treating | Akron |
| Akron Steel Treating Plant | Akron |
| Akron Street Railway And Illuminating Company | Akron |
| Akron Thermal | Akron |
| Akron Tower Supply Company | Akron |
| Akron Univ Womens Dorm | Akron |
| Akron Water Works Company | Akron |
| Akron, Bedford And Cleveland Railway Company | Cleveland |
| Akron, Bedford And Cleveland Railway Company | Bedford |
| Akron, Bedford And Cleveland Railway Company | Cuyahoga Falls |
| Akwell Corporation | Akron |
| Akzo Chemical | Gallipolis |
| Albert Bess | Hamilton |
| Albert Kahn Associates, Incorporated | Sandusky |
| Albert R. Hostetter Company | Dayton |
| Albrecht Tool | Cleveland |
| Alcoa | Chillicothe |
| Alcoa | Cleveland |
| Alcoa | Cleveland |
| Alcoa | Newburgh Hts |
| Alcoa | Brookpark |
| Alcoa (f/k/a Reynolds Metals) | Cleveland |
| Alcoa Aluminum | Cleveland |
| Alcoa Company | Cleveland |
| Alcoa, Incorporated | Cleveland |
| Alcoa, Incorporated | Cleveland |
| Aldon Products | Cleveland |
| Alexco Inc. | Niles |
| Alfred A. Pope Building | Cleveland |
| Alkali Rubber Company | Akron |
| All Shapes Steel Products Company | Warren |
| All Steel Inc. | Cleveland |
| Allegheny Ludlum Steel | Waterville |
| Allen And Wheeler Company | Eldean |
| Allen Foundry Machine | Lancaster |
| Allen Products Company, Incorporated | Cleveland |
| Allen Refractories Co | Canal Winchester |
| Allen Refractories Co. | Canal Winchester |
| Allen Refractories Co. | Columbus |
| Allen School | Canton |
| Alliance | Ware Alliance |
| Alliance Cold Storage And Packing Company | Alliance |
| Alliance Gas And Power Company | Alliance |
| Alliance Research Center | Alliance |
| Alliance Tubular Products Company | Alliance |
| Allied Boiler | Cleveland |
| Allied Chemical | Southpoint |
| Allied Chemical | South Point |
| Allied Chemical | South Point |
| Allied Chemical | Ironton |
| Allied Chemical | Toledo |
| Allied Chemical | Ironton |
| Allied Chemical | South Point |
| Allied Chemical | Painesville |
| Allied Chemical | Toledo |
| Allied Chemical (a/k/a Ironton Coke/mclouth Steel) | Ironton |
| Allied Chemical (a/k/a Ironton Coke/mclouth Steel) | Ironton |
| Allied Chemical * | Youngstown |
| Allied Chemical Dye Corp Semet Solvay Co | Ironton |
| Allied Chemical Dye Corp. | Toledo |
| Allied Chemical Dye Corporation | Ironton |
| Allied Chemical Dye Corporation | Tronton |
| Allied Chemical Dye Corporation Barrett Division | Toledo |
| Allied Chemical Company | Painesville |
| Allied Chemical Company | Youngstown |
| Allied Chemical Corp. | Ironton |
| Allied Chemical Corp. | Painesville |
| Allied Chemical Corp. | Toledo |
| Allied Chemical Corp. | South Point |
| Allied Chemical Corp. Republic Steel Corporation | Warren |
| Allied Chemical Corporation | South Point |
| Allied Chemical Corporation | Youngstown |
| Allied Chemical Corporation | Fostoria |
| Allied Chemical Corporation | Youngstown |
| Allied Chemical Corporation | Youngstown |
| Allied Chemical Corporation 2829 Glendale | Toledo |
| Allied Chemical Corporation, 2829 Glendale | Toledo |
| Allied Chemical Plant | Southpoint |
| Allied Egry Business Systems | Dayton |
| Allied Engineering Company | Cleveland |
| Allied Engineering Company | Cleveland |
| Allied Rubber Mice | Cleveland |
| Allied Service | Marietta |
| Allied Signal, Incorporated | Fostoria |
| Allis Chalmers | Cleveland |
| Allis Chalmers Manufacturing Company | Norwood |
| Allis Chalmers Manufacturing Company | East Norwood |
| Allis Chalmers Manufacturing Company, Norwood Plant | Cincinnati |
| Alloy Engineering | Berea |
| Alloy Industry | Berea |
| Alloys Chemical Manufacturing Company | Cleveland |
| Alms And Doepke Dry Goods Company | Cincinnati |
| Alpha Portland Cement | Ironton |
| Alpha Portland Cement Co. | Ironton |
| Alpha Portland Cement Company | Ironton |
| Altivity Packaging | Middletown |
| Alum. Magnesium (whw) | Sandusky |
| Aluminum Billets Inc | Niles |
| Aluminum Co. Of America | Cleveland |
| Aluminum Coating | Cleveland |
| Aluminum Coating | Cleveland |
| Aluminum Corporation | Cleveland |
| Aluminum Corporation Of America | Cleveland |
| Aluminum Corporation Of America | Cleveland |
| Aluminum Corporation Of America | Cleveland |
| Aluminum Smelting | Cleveland |
| Aluminum Smelting | Maple Heights |
| Aluminum Smelting | Maple Heights |
| Aluminum Smelting Refining Company | Cleveland |
| Alumiwal, Incorporated, Plant No. 1 | Gnadenhutten |
| Alumiwal, Incorporated, Plant No. 2 | Gnadenhutten |
| Amac Enterprises | Cleveland |
| Amana Refrigeration | Amana |
| Amax Specialty | Cleveland |
| Ambler Corp. | Toledo |
| Amcast Industrial Corporation | Ironton |
| Amcast Industrial Corporation | Ironton |
| American Aluminum Company | Barberton |
| American Aluminum Company | New Portage |
| American Art Works, Incorporated | Coshocton |
| American Ball Bearing Company | Cleveland |
| American Bitumals Asphalt | Columbia Park |
| American Bitumals Corp | North Bend |
| American Bituminus Asphalt | Cincinnati |
| American Book Company | Cincinnati |
| American Bottle Company | Newark |
| American Box Company | Cleveland |
| American Brake Shoe Co. | Elyria |
| American Brake Shoe Company | Elyria |
| American Bridge | Lorain |
| American Can Company | Toledo |
| American Cancer Society | Dover |
| American Cereal Company | Akron |
| American Clay Machinery Company | Bucyrus |
| American Coating Mills, Incorporated | Middletown |
| American Cook Company | Cincinnati |
| American Crayon Company | Sandusky |
| American Crayon Company | Sandusky |
| American Cyanamid | Marietta |
| American Cyanamid Company | Hamilton |
| American Cyanamid Company | Marietta |
| American Diamalt Company | Cincinnati |
| American Diamalt Company | Riverside (cincinnati) |
| American Electric Power Muskingum River Power Plant | Beverly |
| American Electric Power Muskingum River Power Plant | Beverly |
| American Electric Power Co. James M. Gavin Power Plant | Cheshire |
| American Electric Power Co. James M. Gavin Power Plant | Cheshire |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Company Conesville Power Plant | Conesville |
| American Electric Power Service Corporation | Relief |
| American Electric Power Service Corporation | Conesville |
| American Electric Power Service Corporation | Relief |
| American Electric Power, Cardinal Plant | Brilliant |
| American Encaustic Tiling Company | Zanesville |
| American Envelope Company | West Carrollton |
| American Fiberboard | Middletown |
| American Fire Brick Co. | Cleveland |
| 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 Greetings Incorporated | Cleveland |
| American Handling Equip. | Cleveland |
| American Hard Rubber Company | Akron |
| American Hard Rubber Company | Akron |
| American Hoist | Cleveland |
| American Insurance Union Building | Columbus |
| American Laundry Machine Company | Norwood |
| American Laundry Machine Company | Norwood |
| American Louisiana Pipe Line Co. | Defiance |
| American Louisiana Pipe Line Company Compressor Station | Defiance |
| American Lubricants Co. | Dayton |
| American Malleable | Marion |
| American Malleable Casting Company | Marion |
| American Malleable Casting Company | Marion |
| American Malleable Casting Company | Marion |
| American Metal | Cambridge |
| American Mineral Spirits Co | Toledo |
| American Mineral Spirits Co. | Toledo |
| American Mineral Spirits Company | Toledo |
| American Monarch | Cleveland |
| American Motors | Toledo |
| American Motors Corporation | Toledo |
| American Motors Corporation Jeep Division | Toledo |
| American Municipal Power Ohio, Incorporated | Marietta |
| American Municipal Power Ohio, Incorporated | Marietta |
| American Municipal Power, Gorsuch Station | Marietta |
| American Nut And Bolt Company | Cleveland |
| American Oak Leather Company | Cincinnati |
| American Pad And Textile Company | Greenfield |
| American Portland Cement Company | Cincinnati |
| American Radiator And Standard Sanitary Corporation | Elyria |
| American Radiator And Standard Sanitary Corporation | Tiffin |
| American Roll Foundry Company | Canton |
| American Rolling Mill Company | Hamilton |
| American Rolling Mill Company | Middletown |
| American Rolling Mill Company | South Columbus |
| American Rolling Mill Company | Zanesville |
| American Rolling Mill Company | Hamilton |
| American Rolling Mill Company | Middleton |
| American Rolling Mill Company | Middletown |
| American Rubber And Tire Company | Akron |
| American Seeding Machine Company | Springfield |
| American Sewer Pipe Company | Barberton |
| American Sheet Tin Plate Co Cambridge Works | Cambridge |
| American Sheet Tin Plate Company | Canton |
| American Sheet Tin Plate Company | Wellsville |
| American Sheet Tin Plate Company | New Philadelphia |
| American Sheet Tin Plate Company | Canal Dover |
| American Sheet Tin Plate Company | Martins Ferry |
| American Sheet Tin Plate Company | Cambridge |
| American Sheet Tin Plate Company | Cleveland |
| American Sheet And Tin Plate Company | Struthers |
| American Sheet And Tin Plate Company | Martins Ferry |
| American Sheet And Tin Plate Company | Martins Ferry |
| American Sheet And Tin Plate Company | Martins Ferry |
| American Sheet And Tin Plate Company | Niles |
| American Sheet Steel Company | Bridgeport |
| American Sheet Steel Company | Niles |
| American Ship | Lorain |
| American Ship Builders | Lorain |
| American Ship Building Company | Cleveland |
| American Ship Building Company | Lorain |
| American Ship Building Company | Cleveland |
| American Ship Building Company | Toledo |
| American Ship Building Company | Lorain |
| American Ship Building Company | Lorain |
| American Ship Building Company | Lorain |
| American Ship Building Company | Lorain |
| American Shipbuilding | Toledo |
| American Shipbuilding Co | Toledo |
| American Shipbuilding Co. | Cleveland |
| American Shipbuilding Co. | Lorain |
| American Shipbuilding Co. | Toledo |
| American Shipbuilding Company | Cleveland And Lorain |
| American Shipbuilding Corp. | Lorain |
| American Smelting Refining Company | Columbus |
| American Spring Wire | Cleveland |
| American Standard | Elyria |
| American Steel | Marion |
| American Steel | Alliance |
| American Steel Wire | Cleveland |
| American Steel Wire | Cleveland |
| American Steel Wire Co. | Worchester |
| American Steel Wire Co. Coke Works | Cleveland Newburgh |
| American Steel Wire Company | Cleveland |
| American Steel Wire Cuyahoga Works | Cleveland |
| American Steel And Wire Company | Cleveland |
| American Steel And Wire Company | Newburg |
| American Steel And Wire Company | Newburgh |
| American Steel Casting Foundries Company | Alliance |
| American Steel Foundries Company | Alliance |
| American Steel Foundries Company | Alliance |
| American Steel Foundries Company | Alliance |
| American Steel Foundry | Alliance |
| American Steel Hoop Company | Youngstown |
| American Steel Hoop Company | Girard |
| American Stove Company | Cleveland |
| American Stove Company | Lorain |
| American Stove Company | Lorain |
| American Strawboard Company | Lima |
| American Strawboard Company | Barberton |
| American Strawboard Company | Lima |
| American Strawboard Company | Circleville |
| American Structural Products Co. | Toledo |
| American Suede Shoe Company | Toledo |
| American Suede Shoe Company | Toledo |
| American Tank | Cleveland |
| American Tobacco Company | Middletown |
| American Tobacco Company | Middltetown |
| American Tool Works Company | Cincinnati |
| American Viscose Corporation | Marietta |
| American Welding | Warren |
| American Welding | Warren |
| American Welding | Youngstown |
| American Welding Manufacturing | Warren |
| American Welding Manufacturing Co. | Warren |
| American Welding Mfg. Co. | Niles |
| American Welding Mfg. Co. | Warren |
| American Weldless Steel Tube Company | Toledo |
| American Wire Mills | Cleveland |
| American Works Corporation | Cleveland |
| American Zinc Company | Columbus |
| American Zinc Oxide | Columbus |
| American Zinc Oxide | Columbus |
| American Zinc Oxide | Columbus |
| American Zinc Oxide | Columbus |
| Americhem | Cuyahuga Falls |
| Amsco Solvents Chemicals | Cincinnati |
| Amweld Buildings Products | Niles |
| Anchor Hocking Corporation | Lancaster |
| Anchor Hocking Corporation Plant 1 | Lancaster |
| Anchor Hocking Glass | Lancaster |
| Anchor Hocking Glass Co Plant No 1 | Lancaster |
| Anchor Hocking Glass Corp. | Lancaster |
| Anchor Hocking Glass Corporation | Lancaster |
| Anchor Hocking Glass Corporation | Lancaster |
| Anchor Hocking Glass Corporation | Lancaster |
| Anchor Packing | Warren |
| Anderson Ibec | Strongsville |
| Anderson Millwright Service, Inc. | Cleveland |
| Andrew Jergens Co. | Cincinnatti |
| Andrew Jergens Company | Cincinnati |
| Andrew Jergens Company | Cincinnati |
| Andrew Plocher | Dayton |
| Andrews Hitchcock Iron Company | Youngstown |
| Andrews Hitchcock Iron Company | Youngstown |
| Andrews Hitchcock Iron Company | Hubbard |
| Andrews Hitchcock Iron Company | Youngstown |
| Andrews Hitchcock Iron Company | Youngstown |
| Andrews Soap Company | Cincinnati |
| Angel Jay L | Toledo |
| Angel Jay L Inc | Columbus |
| Angel Jay L Inc | Toledo |
| Anheuser Busch | Columbus |
| Anheuser Busch | Columbus |
| Anheuser Busch Brewery | Columbus |
| Anheuser Busch Incorporated | Columbus |
| Anheuser Busch, Incorporated | Columbus |
| Anheuser Busch, Incorporated | Columbus |
| Anheuser Busch, Incorporated | Worthington |
| Anheuser Busch, Incorporated | Columbus |
| Ann Arbor Railroad Company | Toledo |
| Anna Dean Farm | Barberton |
| Ansted And Burk Company | Springfield |
| Ap Refractories | Twinsburg |
| Apex Aluminum Smelting | Cuyahoga Hts |
| Apex International | Cleveland |
| Apex Smelt | Cleveland |
| Apex Smelting | Cleveland |
| Apex Smelting | Cleveland |
| Apex Smelting Company | Cleveland |
| Apex Smelting Company | Cleveland |
| Apex Smelting Company | Cleveland |
| Apex Welding | Cleveland |
| Appco Inc. | Barberton |
| Apple Creek Hospital Boiler Room | Canton |
| Apple Creek State Hospital | Canton |
| Appleton Papers, Incorporated | West Carrollton |
| Appleton Papers, Incorporated | West Carrollton |
| Appleton Papers, Incorporated | Dayton |
| Aquarium Cincinnati | Cincinnati |
| Arbuckle, Ryan Company, Incorporated | Alliance |
| Arbuckle, Ryan Company, Incorporated | Toledo |
| Arbuckle, Ryan Company, Incorporated | Massillon |
| Arbuckle, Ryan Company, Incorporated | Toledo |
| Arbys | Bedford Heights |
| Arbys | Cleveland |
| Arbys | Parma Heights |
| Arbys | Parma |
| Arcade Building | Worthington |
| Archer Daniels Midland Co. | Ashtabula |
| Archer Daniels Midland Co. Chemical Products Division | Ashtabula |
| Arco | Cleveland |
| Aristech | Haverhill |
| Aristech / Uss Chemical | Haverhill |
| Aristech / Uss Chemical | Haverhill |
| Aristech Chemical Corporation | Ironton |
| Aristech Chemical Corporation | Haverhill |
| Aristech Chemical Corporation | Ironton |
| Aristocraft, Inc. | Cincinnati |
| Arkview Federal Savings Loan Co | Shaker Heights |
| Arlington Junior High School | Arlington |
| Armature Coil | Cleveland |
| Armco | Ashland |
| Armco Air Conditioning | Middletown |
| Armco Anneaung | Middletown |
| Armco Hot Strip Mill Lefferson Road | Middletown |
| Armco Project 600 | Middletown |
| Armco Steel | Marion |
| Armco Steel | Middletown |
| Armco Steel | Hamilton |
| Armco Steel | Mansfield |
| Armco Steel | Middletown |
| Armco Steel | Hamilton |
| Armco Steel | Middletown |
| Armco Steel | New Miami |
| Armco Steel | Middletown |
| Armco Steel | Zanesville |
| Armco Steel | Hamilton |
| Armco Steel Air Conditioning Duct | Middletown |
| Armco Steel Annealing Building | Middletown |
| Armco Steel Boiler House | Middletown |
| Armco Steel Cold Mill Waste Unit #3 | Middletown |
| Armco Steel Melt Shop | Middletown |
| Armco Steel Outdoor Steam | Middletown |
| Armco Steel Pickled Lines | Middletown |
| Armco Steel Slab Mill | Middletown |
| Armco Steel Vacuum Degasser | Middleton |
| Armco Steel Waste Disposal Building | Middletown |
| Armco Steel -continuous Casting | Middletown |
| Armco Steel Co | Hamilton |
| Armco Steel Corp | Middletown |
| Armco Steel Corp | Middleton |
| Armco Steel Corp | Middleton |
| Armco Steel Corp | Middletown |
| Armco Steel Corp. | Hamilton |
| Armco Steel Corp. | Middletown |
| Armco Steel Corp. | Middletown |
| Armco Steel Corporation | Middletown |
| Armco Steel Corporation | Hamilton |
| Armco Steel Corporation | Middletown |
| Armco Steel Corporation | Zanesville |
| Armco Steel Corporation | Middleton |
| Armco Steel Corporation | Hamilton |
| Armco Steel Corporation | Middletown |
| Armco Steel Corporation | Hamilton |
| Armco Steel Corporation- Middletown Works | Middletown |
| Armco Steel Corporation- Middletown Works | Middletown |
| Armco Steel Corporation- Middletown Works | Middletown |
| Armco Steel Corporation, Middletown Works | Middletown |
| Armco Steel Mill | Middletown |
| Armco, Incorporated | Middletown |
| Armour And Company | Alliance |
| Armstrong Contracting Supply | Cincinnati |
| Armstrong Contracting Supply | Circleville |
| Armstrong Contracting Supply | Cleveland |
| Armstrong Contracting Supply | Columbus |
| Armstrong Contracting Supply | Goledo |
| Armstrong Contracting Supply | Toledo |
| Armstrong Contracting Supply | Valley View |
| Armstrong Contracting Supply | Cleveland |
| Armstrong Cork Company | Cleveland |
| Armstrong Cork Company | Columbus |
| Arnold, Hoffman Company, Incorporated | Cincinnati |
| Aro Equipment Plant | Bryan |
| Arrow Aluminum | Cleveland |
| Arrow Aluminum | Avon Lake |
| Art Galvanizing | Cleveland |
| Arthur G Mcgee Co. | Cleveland |
| Arthur G. Mckee Company | Cleveland |
| Arthur Mckee | Cleveland |
| Arwood Corp. | Cleveland |
| Asarco, Inc. | Columbus |
| Asbestos Asphalt Rfg. Co. | Hamilton |
| Asbestos Service Company | Warren |
| Asbestos Service Company | Worthington |
| Asbestos Service Company | Youngstown |
| Asbestos Service Company | Columbus |
| Ashland Chemical | South Point |
| Ashland Chemical | South Point |
| Ashland Chemical | Columbus |
| Ashland Chemical | Dublin |
| Ashland Chemical | South Point |
| Ashland College | Ashland |
| Ashland College Arts And Humanities Bldg | Ashland |
| Ashland High School | Ashland |
| Ashland Hs | Ashland |
| Ashland Oil | Ashland |
| Ashland Oil | Ashland |
| Ashland Oil | Belpre |
| Ashland Oil | Belpre |
| Ashland Oil | Canton |
| Ashland Oil | Lima |
| Ashland Oil | South Point |
| Ashland Oil | Canton |
| Ashland Oil Refining Company | Canton |
| Ashland Oil Refining Company | Findlay |
| Ashland Oil And Refining Co. | Canton |
| Ashland Oil Co | Canton |
| Ashland Oil Refinery | Canton |
| Ashland Oil Refinery | Findlay |
| Ashland Oil Refinery | Canton |
| Ashland Oil Refinery | Canton |
| Ashland Oil, Incorporated | North Bend |
| Ashtabula c Plant | Geneva |
| Ashtabula C Plant | Ashtabula |
| Ashtabula County Medical Center | Ashtabula |
| Ashtabula General Hospital | Ashtabula |
| Ashtabula Powerhouse | Ashtabula |
| Ashtabula Scrap Reclamation Plant | Ashtabula |
| Ashtabula Tele Co | Ashtabula |
| Ashtabula Tele Co Wyman Exc | Ashtabula |
| Ashtabula Water Supply Company | Ashtabula Harbor |
| Asphalt Block Pavement Company | Toledo |
| Associated Sheet Metal | Cleveland |
| Associated Sheet Metal Company | Cleveland |
| At T | Medina |
| Att | Medina |
| Att | Portsmouth |
| Athens State Hospital | Athens |
| Athens State Hospital | Athens |
| Atkins Pearce Manufacturing Company | Cincinnati |
| Atlantic Foundry | Akron |
| Atlantic Foundry Company | Akron |
| Atlas Car | Cleveland |
| Atlas Foundry | Cleveland |
| Atlas Laundry-linen Supply | Columbus |
| Atlas Underwear Company | Piqua |
| Atmoshperic Nitrogen Corporation | South Point |
| Atmoshperic Nitrogen Corporation | South Point |
| Atmoshperic Nitrogen Corporation | South Point |
| Atmospheric Nitrogen Corp. | South Point |
| Atomic Energy Commission | Piketon/chillicothe |
| Auglaize Box Board Company | St Mary's |
| August Wagner And Sons Brewing Company | Columbus |
| August Wagner Breweries, Incorporated | Columbus |
| Ault Wiborg Company | Cincinnati |
| Ault Wiborg Company | St. Bernard |
| Ault Wiborg Company | Norwood |
| Ault Wiborg Company | Norwood |
| Ault Wiborg Company | Cincinnati |
| Aultman And Taylor Machinery Company | Mansfield |
| Aultman And Taylor Machinery Company | Mansfield |
| Aultman And Taylor Machinery Company | Mansfield |
| Aultman And Taylor Machinery Company | Mansfield |
| Aultman And Taylor Machinery Company, Thresher Department | Mansfield |
| Aultman Company | Canton |
| Aultman Health Foundation | Colesville |
| Aultman Health Services | Canton |
| Aultman Hospital | Canton |
| Aultman Hospital Boiler | Canton |
| Austin Powder Company | Cleveland |
| Austin Powder Company | Falls Junction |
| Austin Powder Company | Falls Junction |
| Autolite | Toledo |
| Automotive Equipment | Westlake |
| Avco Corporation | Cincinnati |
| Avco Corporation, Electronics Division | Cincinnati |
| Avco Manufacturing Corporation, Crosley Division | Evendale |
| Avco New Idea Farm Equipment | Coldwater |
| Aventis Pharmaceuticals | Cincinnati |
| Avon Beach Station | Avon |
| Avon Lake Power Plant | Avon Lake |
| Avon Lake Power Plant, Plant C | Avon Lake |
| Avon Lake Powerhouse | Cleveland |
| Avon Products | Springdale |
| Avtron Manufacturing Inc | Cleveland |
| Avtron Manufacturing, Inc. | Cleveland |
| Name | City |
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