| RSRubber Seal (0857733184) | Dayton | — | ◇ UNVERIFIED |
| SCSherwin-williams CO Columbus Plant | Columbus | — | ◇ UNVERIFIED |
| SPSolutions Plus INC | Amelia | — | ◇ UNVERIFIED |
 Sun Chemical CORP | Maumee | — | ◇ UNVERIFIED |
| Sun Chemical CORP | Franklin | — | ◇ UNVERIFIED |
| Sun Chemical CORP Color Intermediates | Cincinnati | — | ◇ UNVERIFIED |
| Sun Chemical Corporation | Cincinnati | — | ◇ UNVERIFIED |
| TATenneco Automotive - Monroe Clevite Elastomers (0322000048) | Milan | — | ◇ UNVERIFIED |
| TCThe Continental Products Company | Euclid | — | ◇ UNVERIFIED |
| TSThe Scotts CO LLC | Orrville | — | ◇ UNVERIFIED |
| TATower Automotive Prods INC | Upper Sandusky | — | ◇ UNVERIFIED |
| TBTrc Buyer CO. Dba the Ruscoe Company Plant Ii (1677010204) | Akron | — | ◇ UNVERIFIED |
| VSValspar Specialty Paints LLC (1576131795) | Massillon | — | ◇ UNVERIFIED |
| VPVanguard Paints & Finishes INC | Marietta | — | ◇ UNVERIFIED |
| VUVesuvius USA Corporation - Cd (1318126134) | Brookpark | — | ◇ UNVERIFIED |
| VCVwr Chemicals LLC | Aurora | — | ◇ UNVERIFIED |
| WPWarren Plant * | Warren | — | ◇ UNVERIFIED |
| WCWayne County Rubber INC. | Wooster | — | ◇ UNVERIFIED |
| ZIZaclon INC | Cleveland | — | ◇ UNVERIFIED |
 Calibrescientific Global Distribution INC | Holland | — | ◐ LIKELY ACTIVE |
 Eco Energy International LLC | Mansfield | — | ◐ LIKELY ACTIVE |
| EDEspresso Diagnostics LLC | Toledo | — | ◐ LIKELY ACTIVE |
| ICIntegris Composites, INC. | Hebron | 100–499 | ◐ LIKELY ACTIVE |
| SWSrc Worldwide, INC. (1318001732) | Cleveland | — | ◐ LIKELY ACTIVE |
| PSPrime Solutions | Granville | — | ◇ UNVERIFIED |
| AAddipel | Elyria | — | ◐ LIKELY ACTIVE |
| APAir Products and Chemicals Inc.- Cleveland Facility | Cleveland | 20–99 | ◐ LIKELY ACTIVE |
| APAkron Polymer Systems INC | Cuyahoga Falls | — | ◐ LIKELY ACTIVE |
| ACAldrich Chemical Co., LLC | Miamisburg | 100–499 | ◐ LIKELY ACTIVE |
| ARAmerican Regent INC | New Albany | — | ◐ LIKELY ACTIVE |
| AIAmgen Inc (Ohio) | New Albany | 100–499 | ◐ LIKELY ACTIVE |
| APAprecia Pharmaceuticals, LLC | Mason | — | ◐ LIKELY ACTIVE |
| ALAshland LLC | Dublin | — | ◐ LIKELY ACTIVE |
| ACASK Chemicals LLC - Headquarters | Dublin | 20–99 | ◐ LIKELY ACTIVE |
| BCBasf CORP Coatings Division | Whitehouse | — | ◐ LIKELY ACTIVE |
 Calgon Carbon - Columbus | Columbus | 20–99 | ◐ LIKELY ACTIVE |
| CPColgate Palmolive Company | Cambridge | 100–499 | ◐ LIKELY ACTIVE |
| CCContainer Compliance CORP | Cleveland | — | ◐ LIKELY ACTIVE |
| CICytec Industries, INC. | Marietta | — | ◐ LIKELY ACTIVE |
| DCDubois Chemicals, INC | Sharonville | — | ◐ LIKELY ACTIVE |
 Eastman Kodak Company | Dayton | — | ◐ LIKELY ACTIVE |
| EMElkem Metals Company | Ashtabula | — | ◐ LIKELY ACTIVE |
| EMEmd Millipore CORP | Norwood | — | ◐ LIKELY ACTIVE |
| EPEveready Products CORP | Cleveland | — | ◐ LIKELY ACTIVE |
| FPFairfield Plant | Fairfield | 1–19 | ◐ LIKELY ACTIVE |
| FGFlint Group Pigments | Cincinnati | — | ◐ LIKELY ACTIVE |
| FBFluor - Bwxt Portsmouth LLC | Piketon | — | ◐ LIKELY ACTIVE |
| FBForge Biologics | Grove City | 100–499 | ◐ LIKELY ACTIVE |
| FMFresenius Medical Care Oregon Manufacturing | Oregon | 100–499 | ◐ LIKELY ACTIVE |
| FUFresenius USA Manufacturing, INC. | Oregon | — | ◐ LIKELY ACTIVE |
