| KUKost USA INC | Cincinnati | 100–499 | ● ACTIVE |
| KPKutol Products Company | Sharonville | 100–499 | ● ACTIVE |
Maverick Molding CO. | Blue Ash | — | ● ACTIVE |
Meridian Bioscience INC | Cincinnati | 20–99 | ● ACTIVE |
| NDNitto Denko Avecia - Internal Tank Farm | Cincinnati | 100–499 | ● ACTIVE |
Pmc Specialties Group INC | Cincinnati | 1–19 | ● ACTIVE |
| SCShepherd Chemical CO (1431370150) | Norwood | 100–499 | ● ACTIVE |
Luxfer Magtech, INC. | Cincinnati | — | ● ACTIVE |
| TWTeva Women's Health | Cincinnati | 100–499 | ● ACTIVE |
| TSThe Shepherd Chemical Company | Cincinnati | 100–499 | ● ACTIVE |
Automotive International INC | Cincinnati | — | ● ACTIVE |
| BCBasf Corporation | Cincinnati | 100–499 | ● ACTIVE |
Davy Gas INC. | Cincinnati | — | ● ACTIVE |
Diamant Polymers INC | Cincinnati | — | ● ACTIVE |
Lib Therapeutics INC | Cincinnati | — | ● ACTIVE |
Michelman, INC. | Blue Ash | — | ● ACTIVE |
Nano Catalytics INC | Cincinnati | — | ● ACTIVE |
Wright Brothers Global Gas, LLC | Cincinnati | — | ● ACTIVE |
| WBWright Brothers, INC. | Cincinnati | — | ● ACTIVE |
| BPBaerlocher Production USA | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| MIMichelman INC | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| NINilpeter, INC. | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| PIPremier Ink Systems | Harrison | 20–99 | ◐ LIKELY ACTIVE |
| DCDubois Chemicals, INC | Sharonville | — | ◐ LIKELY ACTIVE |
| DHDystar Hilton Davis CORP. (1431070039) | Cincinnati | — | ◐ LIKELY ACTIVE |
| HFHb Fuller CO | Blue Ash | — | ◐ LIKELY ACTIVE |
| IAIneos Abs (usa) LLC - Addyston Plant | Addyston | — | ◐ LIKELY ACTIVE |
| IEItw Evercoat, a Division of Iiiinois Tool Works, INC. (1431053385) | Blue Ash | — | ◐ LIKELY ACTIVE |
| PCPeter Cremer North America - South Terminal | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| RORutgers Organics CORP | Harrison | — | ◐ LIKELY ACTIVE |
| SSinkro | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| TNTrammo Nitrogen Products, INC. | North Bend | — | ◐ LIKELY ACTIVE |
| VNVeolia North America Regeneration Services, LLC (1431350817) | North Bend | — | ◐ LIKELY ACTIVE |
| WIWincom INC | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| EMEmd Millipore CORP | Cincinnati | — | ◐ LIKELY ACTIVE |
| MIMilacron INC Consumable Prods Div | Cincinnati | — | ◐ LIKELY ACTIVE |
| PCPilot Chemical Company of Ohio Lockland Plant | Lockland | — | ◐ LIKELY ACTIVE |
| SCSherwin-williams CO | Cincinnati | — | ◐ LIKELY ACTIVE |
| SUSolvay USA INC | Cincinnati | — | ◐ LIKELY ACTIVE |
Sun Chemical CORP Color Intermediates | Cincinnati | — | ◐ LIKELY ACTIVE |
Sun Chemical Corporation | Cincinnati | — | ◐ LIKELY ACTIVE |
| VCVibrantz Color Solutions INC | Lockland | — | ◐ LIKELY ACTIVE |
| KUKao USA INC | Cincinnati | 500+ | ▲ REPORTED CLOSED |
| NMNehemiah Manufacturing Comppany, LLC | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| ICIntercontinental Chemical CORP | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
| OCOliver Chemical CO INC | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
| TATechno Adhesives CO | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
| HEHydratech Engineered Products LLC | Cincinnati | 1–19 | ◇ UNVERIFIED |
| EMEmd Millipore CORP | Norwood | — | ◐ LIKELY ACTIVE |
| FGFlint Group Pigments | Cincinnati | — | ◐ LIKELY ACTIVE |