| IPInhance Products | Columbus | — | ◇ UNVERIFIED |
| ILIntellipak LTD | Newbury | — | ◇ UNVERIFIED |
| IPInternational Paint LLC (1318067810) | Berea | — | ◇ UNVERIFIED |
| KLKbco LLC - Westerville | Westerville | — | ◇ UNVERIFIED |
| KGKdc/one Groveport | Groveport | — | ◇ UNVERIFIED |
| KDKnowlton Development CORP | Johnstown | — | ◇ UNVERIFIED |
| KSKobelco Stewart Bolling, INC. (1677000202) | Hudson | — | ◇ UNVERIFIED |
| KBKurtz Bros., INC. | Valley View | — | ◇ UNVERIFIED |
| LILayne Inliner LLC | Hilliard | — | ◇ UNVERIFIED |
| LGLinde Gas North America Llc, Lima I & Ii Plant | Lima | — | ◇ UNVERIFIED |
| LILinde INC | Marietta | — | ◇ UNVERIFIED |
| LLLinde - Lima | Lima | — | ◇ UNVERIFIED |
| LTLinde - Toledo | Oregon | — | ◇ UNVERIFIED |
| LCLiquid Carbonic Corp., Canton Asp | Canton | — | ◇ UNVERIFIED |
| MPMagnum Products | Columbus | — | ◇ UNVERIFIED |
| MPMahoning Paint CORP | Youngstown | — | ◇ UNVERIFIED |
| MPMansfield Paint CO | Medina | — | ◇ UNVERIFIED |
| MCMason Color Works INC | East Liverpool | — | ◇ UNVERIFIED |
| MPMiami Products & Chemical CO. | Dayton | — | ◇ UNVERIFIED |
 Michelman, INC. | Sharonville | — | ◇ UNVERIFIED |
| MIMid-states Intl Motocross INC | Amherst | — | ◇ UNVERIFIED |
| MCMidwest Composites, LLC | Wapakoneta | — | ◇ UNVERIFIED |
| MFMpc - Fairborn | Fairborn | — | ◇ UNVERIFIED |
| MIMultibase INC | Copley | — | ◇ UNVERIFIED |
| NANachurs Alpine Solutions - Marion Plant | Marion | — | ◇ UNVERIFIED |
| NANitto Avecia Uc Campus Labs | Cincinnati | — | ◇ UNVERIFIED |
| NCNova Chemicals INC | Belpre | — | ◇ UNVERIFIED |
| NINoveon INC | Bainbridge Township | — | ◇ UNVERIFIED |
| OCOatey Company | Cleveland | — | ◇ UNVERIFIED |
| OIOptiblend Industries-cambridge | Cambridge | — | ◇ UNVERIFIED |
| OPOvation Polymers | Medina | — | ◇ UNVERIFIED |
| OPOvation Polymer Technology and Engineered Materials | Medina | — | ◇ UNVERIFIED |
| PPPcs Purified Phosphates | Harrison | — | ◇ UNVERIFIED |
| PDPiketon Depleted Uranium Hexafluoride (duf6) Conv | Piketon | — | ◇ UNVERIFIED |
| P5Plant 5 | Akron | — | ◇ UNVERIFIED |
| PIPlasti-kote INC | Medina | — | ◇ UNVERIFIED |
| PAPolymer Additives - Cleveland Plant | Cleveland | — | ◇ UNVERIFIED |
| PIPolymerics INC | Kent | — | ◇ UNVERIFIED |
| PCPolyone CORP North Baltimore | North Baltimore | — | ◇ UNVERIFIED |
| PIPpg Industries INC | Warren | — | ◇ UNVERIFIED |
| PPPrism Powder Coatings LTD. USA | Brunswick | — | ◇ UNVERIFIED |
| PLPromerus LLC | Brecksville | — | ◇ UNVERIFIED |
| PPProtech Powder Coatings INC | Tallmadge | — | ◇ UNVERIFIED |
| QAQuest Automotive Products | Gnadenhutten | — | ◇ UNVERIFIED |
| RWRadix Wire & Cable LLC | Aurora | — | ◇ UNVERIFIED |
| RPReal Products Manufacturing LTD | Ney | — | ◇ UNVERIFIED |
| RARohm and Haas Chemicals Llc- Cincinnati Plant | Cincinnati | — | ◇ UNVERIFIED |
| RARoyal Adhesives & Sealants | Chagrin Falls | — | ◇ UNVERIFIED |
| RIRoyster-clark INC | Mount Sterling | — | ◇ UNVERIFIED |
| RIRubbermaid INC | Wooster | — | ◇ UNVERIFIED |
