| ACAshta Chemicals, INC. | Ashtabula | — | ◐ LIKELY ACTIVE |
| APAstrazeneca Pharmaceutical LP | West Chester | — | ◐ LIKELY ACTIVE |
 Austin Powder Emulsion | Mc Arthur | — | ◐ LIKELY ACTIVE |
| BCBasf Corporation | Greenville | — | ◐ LIKELY ACTIVE |
| BMBulk Molding Compounds, INC. (0387040001) | Perrysburg | — | ◐ LIKELY ACTIVE |
| CSContinental Structural Plastics of Ohio LLC Aka Csp Oh (0204020245) | Conneaut | — | ◐ LIKELY ACTIVE |
| DCDay-glo Color CORP | Twinsburg | — | ◐ LIKELY ACTIVE |
| DIDegussa Initiators INC | Elyria | — | ◐ LIKELY ACTIVE |
| DCDetrex Corporation, Ashtabula Plant (0204010192) | Ashtabula | — | ◐ LIKELY ACTIVE |
| DCDorn Color, INC. | Cleveland | 20–99 | ◐ LIKELY ACTIVE |
 Dow Chemical Company - Ironton, Ohio Branch | Ironton | — | ◐ LIKELY ACTIVE |
| DCDurez Corporation - Kenton Facility | Kenton | — | ◐ LIKELY ACTIVE |
| EPEmerald Polymer Additives, LLC | Akron | — | ◐ LIKELY ACTIVE |
| FFinishworks | Millersburg | — | ◐ LIKELY ACTIVE |
| GCG-3 Chickadee Purchaser LLC | Akron | — | ◐ LIKELY ACTIVE |
| GCGebauer Company (1318002664) | Cleveland | — | ◐ LIKELY ACTIVE |
| GPGeon Performance Solutions | Avon Lake | 20–99 | ◐ LIKELY ACTIVE |
| GIGojo Industries LLC | Cuyahoga Falls | — | ◐ LIKELY ACTIVE |
| HUHenkel US Operations Corporation (0243081155) | Mentor | — | ◐ LIKELY ACTIVE |
| IUIneos USA LLC | Lima | — | ◐ LIKELY ACTIVE |
| ICIsp Chemicals LLC | Columbus | — | ◐ LIKELY ACTIVE |
| KRKey Resin Company | Batavia | 20–99 | ◐ LIKELY ACTIVE |
| KPKraton Polymers U.s. LLC | Belpre | — | ◐ LIKELY ACTIVE |
| LILinde INC | Ashtabula | 20–99 | ◐ LIKELY ACTIVE |
| LSLubrication Specialties | Mount Gilead | 20–99 | ◐ LIKELY ACTIVE |
| LALubrizol Advanced Materials | Avon Lake | — | ◐ LIKELY ACTIVE |
| LALyondellbasell Advanced Polymers INC. (1677011002) | Akron | — | ◐ LIKELY ACTIVE |
| MPMccann Plastics, INC. | North Canton | 20–99 | ◐ LIKELY ACTIVE |
| MPMondo Polymer Technologies | Reno | 20–99 | ◐ LIKELY ACTIVE |
| NCNagase Chemtex America | Delaware | 20–99 | ◐ LIKELY ACTIVE |
| NANpa Automotive Finishes & Films | Cleveland | — | ◐ LIKELY ACTIVE |
| OCOccidental Chemical Corporation Ashtabula Plant | Ashtabula | — | ◐ LIKELY ACTIVE |
| PHPerformance Health | Akron | — | ◐ LIKELY ACTIVE |
| PPPet Processors, L.l.c. (0243000165) | Painesville | — | ◐ LIKELY ACTIVE |
| PDPolychem Dispersions INC | Middlefield | 20–99 | ◐ LIKELY ACTIVE |
| PIPpg Industries | Circleville | — | ◐ LIKELY ACTIVE |
| PIPpg Industries, Barberton | Barberton | — | ◐ LIKELY ACTIVE |
| PIPpg Industries - Delaware | Delaware | — | ◐ LIKELY ACTIVE |
| PCPreferred Compounding CORP. | Barberton | — | ◐ LIKELY ACTIVE |
| PPP&t Products INC | Sandusky | 20–99 | ◐ LIKELY ACTIVE |
| RPRadici Plastics USA INC. | Wadsworth | 20–99 | ◐ LIKELY ACTIVE |
| RDRemuriate Delta LLC | Delta | — | ◐ LIKELY ACTIVE |
 Renegade Materials Corporation | Miamisburg | 20–99 | ◐ LIKELY ACTIVE |
| RORutgers Organics CORP | Harrison | — | ◐ LIKELY ACTIVE |
| SCScotts CO | Marysville | — | ◐ LIKELY ACTIVE |
| SESew Eurodrive | Troy | 100–499 | ◐ LIKELY ACTIVE |
| SMShepherd Middletown Company | Middletown | — | ◐ LIKELY ACTIVE |
| SCSherwin-williams CO | Bedford Heights | — | ◐ LIKELY ACTIVE |
| SSinkro | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| SPStp Products Manufacturing CO | Painesville | — | ◐ LIKELY ACTIVE |
