Akron Paint & Varnish INC | Akron | 100–499 | ● ACTIVE |
| APAnatrace Products, LLC | Maumee | — | ● ACTIVE |
Applied Specialties Innovations, LLC | Avon Lake | 20–99 | ● ACTIVE |
Barium & Chemicals INC | Steubenville | — | ● ACTIVE |
| BCBasf CORP | Elyria | 100–499 | ● ACTIVE |
Calvary Industries INC. | Fairfield | 20–99 | ● ACTIVE |
| CCCanberra CORP | Toledo | 100–499 | ● ACTIVE |
| CRCapital Resin CORP | Columbus | 20–99 | ● ACTIVE |
Chemical Solvents INC | Cleveland | — | ● ACTIVE |
| CTChem Technologies LTD. | Middlefield | 100–499 | ● ACTIVE |
| CRChemtrade Refinery | Oregon | 20–99 | ● ACTIVE |
Current Lighting Solutions, LLC | Cleveland | — | ● ACTIVE |
Delille Oxygen CO | Columbus | 20–99 | ● ACTIVE |
| DCDover Chemical Corporation | Dover | 100–499 | ● ACTIVE |
| EBEnergizer Battery Manufacturing INC | Marietta | 20–99 | ● ACTIVE |
| ECEquistar Chemicals, LP (0243020004) | Fairport Harbor | 20–99 | ● ACTIVE |
| FAFort Amanda Specialties LLC | Lima | 20–99 | ● ACTIVE |
Freeman Manufacturing & Supply CO | Avon | 100–499 | ● ACTIVE |
Gfs Chemicals INC | Columbus | — | ● ACTIVE |
| GLGuardian Lima, LLC | Lima | 20–99 | ● ACTIVE |
Hikma Pharmaceuticals USA INC. (0125041763) | Columbus | 500+ | ● ACTIVE |
| INIneos Nitriles USA LLC | Lima | 100–499 | ● ACTIVE |
| IPIneos Pigments Usa, Inc.- Plant 1 | Ashtabula | 100–499 | ● ACTIVE |
| IIInx International Ink CO | Lebanon | 100–499 | ● ACTIVE |
| ILIsp Lima LLC | Lima | 20–99 | ● ACTIVE |
| IPItw Permatex INC | Solon | 100–499 | ● ACTIVE |
| KUKost USA INC | Cincinnati | 100–499 | ● ACTIVE |
| KPKutol Products Company | Sharonville | 100–499 | ● ACTIVE |
| LALubrizol Advanced Materials INC Bowling Green | Bowling Green | 20–99 | ● ACTIVE |
Malco Products INC | Barberton | 100–499 | ● ACTIVE |
Maverick Molding CO. | Blue Ash | — | ● ACTIVE |
Mcgean-rohco INC | Cleveland | — | ● ACTIVE |
Meridian Bioscience INC | Cincinnati | 20–99 | ● ACTIVE |
| NDNitto Denko Avecia INC. | Cincinnati | 100–499 | ● ACTIVE |
| OEOrion Engineered Carbons | Belpre | 20–99 | ● ACTIVE |
| PCPilot Chemical CO Middletown Ohio Facility | Middletown | 20–99 | ● ACTIVE |
| PIPlaskolite INC | Zanesville | 100–499 | ● ACTIVE |
| PLPlaskolite, LLC. | Columbus | 100–499 | ● ACTIVE |
| PBPoet Biorefining - Fostoria LLC (0374010235) | Fostoria | 20–99 | ● ACTIVE |
| PBPoet Biorefining - Leipsic | Leipsic | 20–99 | ● ACTIVE |
| PBPoet Biorefining - Marion | Marion | 20–99 | ● ACTIVE |
| PCPremix-hadlock Composites LLC | Geneva | 20–99 | ● ACTIVE |
| RCRoyal Chemical CO * | Macedonia | — | ● ACTIVE |
| SCShepherd Chemical CO (1431370150) | Norwood | 100–499 | ● ACTIVE |
| SCShepherd Color CO * | Cincinnati | 100–499 | ● ACTIVE |
| SCSika CORP Marion Operations | Marion | 100–499 | ● ACTIVE |
Snyder Manufacturing INC. | Dover | 20–99 | ● ACTIVE |
The Champion Company | Springfield | 20–99 | ● ACTIVE |
The Euclid Chemical CO | Cleveland | — | ● ACTIVE |
| TCTremco Cpg INC | Cleveland | 20–99 | ● ACTIVE |