| CRColor Resolutions Intl | Cincinnati | — | ◇ UNVERIFIED |
| FHFirst Highland Mgmt & Devel CORP (1431420875) | Cincinnati | — | ◇ UNVERIFIED |
| GEGe Engine Services INC Acsc/c Rdc | Cincinnati | — | ◇ UNVERIFIED |
| HEHydratech Engineered Products LLC | Cincinnati | — | ◇ UNVERIFIED |
| IAImperial Adhesives INC | Cincinnati | — | ◇ UNVERIFIED |
Michelman, INC. | Sharonville | — | ◇ UNVERIFIED |
| NANitto Avecia Uc Campus Labs | Cincinnati | — | ◇ UNVERIFIED |
| PPPcs Purified Phosphates | Harrison | — | ◇ UNVERIFIED |
| RARohm and Haas Chemicals Llc- Cincinnati Plant | Cincinnati | — | ◇ UNVERIFIED |
| SBSt. Bernard Soap Company (1431394137) | Cincinnati | — | ◇ UNVERIFIED |
| 0O023104-associates Onsite - Pg - Lima Oh | Norwood | 20–99 | ◐ LIKELY ACTIVE |
| 0O025330-associates Onsite - Pg - Cincinnati Oh | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| BIBaleco International, Inc. | North Bend | 20–99 | ◐ LIKELY ACTIVE |
| CNCatexel Nease LLC | Harrison | 20–99 | ◐ LIKELY ACTIVE |
| CSCincinnati Site | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| DCDubois Chemicals - Kemper Rd (Plant, Sales and Corporate Employees) | Sharonville | 500+ | ◐ LIKELY ACTIVE |
| HFHB Fuller Blue Ash | Blue Ash | 20–99 | ◐ LIKELY ACTIVE |
Indiana Oxygen Company-Cleves | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
| IIntercontinentalChemicalCorporation | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
| KCKao Collins Inc. - Edison | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| KUKao USA INC | Cincinnati | — | ▲ REPORTED CLOSED |
| KPKori Pharmaceuticals LLC | Cincinnati | — | ◐ LIKELY ACTIVE |
| LLuxfer | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| MAMichelman AMCC | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| MKMichelman Kemper | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
| NMNehemiah Manufacturing Comppany, LLC | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| NFNexpera - Fort Hill Plant | North Bend | 20–99 | ◐ LIKELY ACTIVE |
| PCPeter Cremer North America - Bottling Facility | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| PCPeter Cremer North America - East Warehouse | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| PCPilot Chemical Company | Lockland | 20–99 | ◐ LIKELY ACTIVE |
| PAProcter and Gamble Cincinnati Chemicals Plant | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
Sun Chemical - Centron Place | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
Sun Chemical Chickering Plant | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
Sun Chemical Spring Grove Site Campus 2026 | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| TPThe Procter & Gamble Distributing LLC | Cincinnati | — | ◐ LIKELY ACTIVE |
| UOUSA OH Cincinnati Plant | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| VTVibrantz Technologies | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| PCPeyen Cone LLC | Cincinnati | — | ◐ LIKELY ACTIVE |
| ANActega North America | Blue Ash | — | ◇ UNVERIFIED |
| BCBorden Chemical | Cincinnati | — | ◇ UNVERIFIED |
| BBBuffers & Biochemicals CORP | Loveland | — | ◇ UNVERIFIED |
| CNCemedine North America LLC | Cincinnati | — | ◇ UNVERIFIED |
| HFH.b. Fuller CO. (1431052206) | Blue Ash | — | ◇ UNVERIFIED |
| HAHercules Addyston Ohio | Addyston | — | ◇ UNVERIFIED |
| ICIntercontinental Chemical CORP | Cincinnati | — | ◇ UNVERIFIED |
| JSJ. & S. Soap & Supply Company | Cincinnati | — | ◇ UNVERIFIED |
| NDNitto Denko Avecia INC | Cincinnati | — | ◇ UNVERIFIED |
| OTOld Time Essentials, LLC | Cincinnati | — | ◇ UNVERIFIED |
| OCOliver Chemical CO INC | Cincinnati | — | ◇ UNVERIFIED |
| PCPilot Chemical Company | Cincinnati | — | ◇ UNVERIFIED |