| WPWyeth Pharmaceuticals/west Chester | West Chester | PA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| 114-oh | West Chester | OH | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| 4C4with Company LLC | West Chester | OH | Furniture and Related Product Manufacturing337211 | — | ▲ REPORTED CLOSED |
| AWAeroFlexx WCTC | West Chester | OH | Plastics and Rubber Products Manufacturing326111 | 20-99 | ◐ LIKELY ACTIVE |
| AAPTech | West Chester | OH | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| ACATC Cincinati | West Chester | OH | Machinery Manufacturing333995 | 20-99 | ◐ LIKELY ACTIVE |
| CICfm International INC | West Chester | OH | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| CDChase Door | West Chester | OH | Fabricated Metal Product Manufacturing332321 | 20-99 | ◐ LIKELY ACTIVE |
| CSChem Service Inc | West Chester | PA | Chemical Manufacturing325199 | 1-19 | ◐ LIKELY ACTIVE |
| CDCincinnati - D007 | West Chester | OH | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| CTCincinnati - Tubes & Cores - C318 | West Chester | OH | Paper Manufacturing322299 | 20-99 | ◐ LIKELY ACTIVE |
| CSCleveland-Cliffs Steel West Chester Regional Office | West Chester | OH | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| CCCONQ Canada | West Chester | OH | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| CPCorrugated Packaging West Chester MA | West Chester | OH | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| CPCorrugated Packaging West Chester MA | West Chester | OH | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
Crane 1 Services - FSC | West Chester | OH | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
| CECryogenic Equipment & Services, Inc. | West Chester | OH | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| CACutter and Cannon | West Chester | PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| DIDdaim INC. | West Chester | PA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| DMDelta Machine and Tool Company, INC. | West Chester | PA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| DBDixon Bayco Cincinnati | West Chester | OH | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
DVM Manufacturing, LLC - West Chester | West Chester | PA | Electrical Equipment, Appliance & Component Manufacturing335313 | 100-499 | ◐ LIKELY ACTIVE |
| EWEnersys - West Chester | West Chester | OH | Electrical Equipment, Appliance & Component Manufacturing335911 | 20-99 | ◐ LIKELY ACTIVE |
| FNFameccanica North America | West Chester | OH | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| FEFederal Eagle, LLC | West Chester | OH | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
| FGFlint Group West Chester | West Chester | OH | Chemical Manufacturing325910 | 20-99 | ◐ LIKELY ACTIVE |
| GFGws Ff&e, LLC | West Chester | OH | Furniture and Related Product Manufacturing337214 | — | ◐ LIKELY ACTIVE |
| HHoldings | West Chester | OH | Miscellaneous Manufacturing339999 | 1-19 | ◐ LIKELY ACTIVE |
| HUHormann USA LLC - Cincinnati | West Chester | OH | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| IMIntegrated Manufacturing Additive Technology Center | West Chester | OH | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| JPJuan Pistlas | West Chester | PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| KPKinetic Prosthetics LLC | West Chester | PA | Miscellaneous Manufacturing339113 | — | ▲ REPORTED CLOSED |
| L3Latitude 36 Foods LLC | West Chester | OH | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| MFMelting Faces, LLC | West Chester | PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| MPMetallurgical Products Company | West Chester | PA | Primary Metal Manufacturing331420 | 1-19 | ◐ LIKELY ACTIVE |
| MGModel Graphics & Media, Inc | West Chester | OH | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| NRNational Resilience, INC | West Chester | OH | Chemical Manufacturing325412 | 500+ | ◐ LIKELY ACTIVE |
| OWOH299 West Chester - Hummingbird East | West Chester | OH | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| Ppharmablock | West Chester | PA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| PCPremier Coatings | West Chester | OH | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| QIQuasonix, INC. | West Chester | OH | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| RBRevolution Bees LLC | West Chester | PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RIRusmar Inc (adba Atmos Technologies) | West Chester | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| SCService Center | West Chester | OH | Plastics and Rubber Products Manufacturing326140 | 20-99 | ◐ LIKELY ACTIVE |
| TAThe Artisan's Cellar, LLC | West Chester | PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| UTUS Tool Group- OC West Chester | West Chester | OH | Machinery Manufacturing333517 | 1-19 | ◐ LIKELY ACTIVE |
| WWch | West Chester | OH | Machinery Manufacturing333922 | 100-499 | ◐ LIKELY ACTIVE |
| WCWest Chester | West Chester | OH | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| WCWest Chester | West Chester | PA | Electrical Equipment, Appliance & Component Manufacturing335210 | 100-499 | ◐ LIKELY ACTIVE |
| WCWest Chester Branch 28 | West Chester | PA | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |