| RARohm and Haas Chemicals Llc- Cincinnati Plant | Cincinnati | — | ◇ UNVERIFIED |
| RIRubbermaid INC | Wooster | — | ◇ UNVERIFIED |
| RERussell Equipment, INC. | Twinsburg | — | ◇ UNVERIFIED |
| SLScot Labs | Chagrin Falls | — | ◇ UNVERIFIED |
| SISensient Imaging Technologies INC | Piqua | — | ◇ UNVERIFIED |
| SASia Adhesives INC | Akron | — | ◇ UNVERIFIED |
| SCSika Corporation | Cleveland | — | ◇ UNVERIFIED |
| SBStar Bronze CO * | Alliance | — | ◇ UNVERIFIED |
| SBSt. Bernard Soap Company (1431394137) | Cincinnati | — | ◇ UNVERIFIED |
| SBStewart Bros Paint CO | Alliance | — | ◇ UNVERIFIED |
| SCStillwater Coating CO. (0819070244) | Greenville | — | ◇ UNVERIFIED |
| TRTahoma Rubber & Plastics, INC. | Barberton | — | ◇ UNVERIFIED |
| TAThe Andersons Maumee Complex | Maumee | — | ◇ UNVERIFIED |
| TIThreebond International Inc-moraine | Moraine | — | ◇ UNVERIFIED |
| TCThree Creek Bioenergy | Sheffield | — | ◇ UNVERIFIED |
| TCToll Compaction Group LLC | Belpre | — | ◇ UNVERIFIED |
| URUltimate Rb | Delphos | — | ◇ UNVERIFIED |
| UCUniroyal Chemical Company INC. | Painesville | — | ◇ UNVERIFIED |
| UCUniversal Cooperatives INC | Napoleon | — | ◇ UNVERIFIED |
| UTUS Technology Recycling CORP | Canton | — | ◇ UNVERIFIED |
| VRValley Rubber Mixing INC. (1677011064) | Akron | — | ◇ UNVERIFIED |
| VSVantage Specialty Ingredients INC | Englewood | — | ◇ UNVERIFIED |
| VEVeolia Es Technical Solutions LLC | Medina | — | ◇ UNVERIFIED |
| WIWinelco INC | West Chester | — | ◇ UNVERIFIED |
| XPX-i-m Products INC | Westlake | — | ◇ UNVERIFIED |
| 0O023104-associates Onsite - Pg - Lima Oh | Norwood | 20–99 | ◐ LIKELY ACTIVE |
| 0O023342-associates Onsite - Pg - Vandalia Oh | Vandalia | 100–499 | ◐ LIKELY ACTIVE |
| 0O025330-associates Onsite - Pg - Cincinnati Oh | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| AEA&A Enterprise, LLC | Bryan | 1–19 | ◐ LIKELY ACTIVE |
| APAdare Pharmaceuticals, Inc. | Vandalia | 100–499 | ◐ LIKELY ACTIVE |
| ASAdhesive Solutions - Industrial Assembly : Ashland | Ashland | 20–99 | ◐ LIKELY ACTIVE |
| ASAdhesive Solutions - Industrial Assembly : Columbus | Columbus | 20–99 | ◐ LIKELY ACTIVE |
| AUA-Gas US Inc - Bowling Green Facility | Bowling Green | 20–99 | ◐ LIKELY ACTIVE |
| AUA-Gas US Inc - Rhome Facility | Rhome | 100–499 | ◐ LIKELY ACTIVE |
| ANAkzo Nobel Coatings Inc (2) | Columbus | 100–499 | ◐ LIKELY ACTIVE |
| ASAlbany Site | Albany | 1–19 | ◐ LIKELY ACTIVE |
| AEAlterra Energy, LLC (222) | Akron | 1–19 | ◐ LIKELY ACTIVE |
| AEAlterra Energy, LLC (3333) | Cuyahoga Falls | 1–19 | ◐ LIKELY ACTIVE |
| APALTIVIA Petrochemicals, LLC - Haverhill Complex | Haverhill | 100–499 | ◐ LIKELY ACTIVE |
| ASAmericas Styrenics LLC - Marietta | Marietta | 20–99 | ◐ LIKELY ACTIVE |
 Andelyn Biosciences - Development Center | Dublin | 20–99 | ◐ LIKELY ACTIVE |
| AAPTech | West Chester | 20–99 | ◐ LIKELY ACTIVE |
| AArchwood | Akron | 20–99 | ◐ LIKELY ACTIVE |
| ACASK Chemicals LLC - Cleveland East | Cuyahoga Heights | 20–99 | ◐ LIKELY ACTIVE |
| ACASK Chemicals LLC - Cleveland West | Cleveland | 20–99 | ◐ LIKELY ACTIVE |
| AMAurora Material Solutions - OHUS01HQ | Streetsboro | 100–499 | ◐ LIKELY ACTIVE |
| ACAvient Corporation | Massillon | 20–99 | ◐ LIKELY ACTIVE |
| ACAvient Corporation - Berea | Berea | 20–99 | ◐ LIKELY ACTIVE |
| ACAvient Corporation - Engineered Materials Plant (AVL) | Avon Lake | 20–99 | ◐ LIKELY ACTIVE |
| ANAvient North Baltimore | North Baltimore | 20–99 | ◐ LIKELY ACTIVE |
