| CSChem Service Inc | West Chester | PA | Chemical Manufacturing325199 | 1-19 | ◐ LIKELY ACTIVE |
| CIChem-trade International INC | Washington | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| CIChemway, INC. | South Park | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| CPCherokee (Danville, PA) Facility | Riverside | PA | Chemical Manufacturing325411 | 100-499 | ◐ LIKELY ACTIVE |
| CBCircadia by Dr. Pugliese Inc. | Leesport | PA | Chemical Manufacturing325620 | 100-499 | ◐ LIKELY ACTIVE |
| CDClearfield Dry Ice Plant | Clearfield | PA | Chemical Manufacturing325120 | 100-499 | ◐ LIKELY ACTIVE |
| CBCollingdale Branch 20 | Collingdale | PA | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| CWColorcon West Point | North Wales | PA | Chemical Manufacturing325130 | 100-499 | ◐ LIKELY ACTIVE |
| CPCoolbaugh, PA | Tobyhanna | PA | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| II"CRC Industries, Inc. - HORSHAM" | Horsham | PA | Chemical Manufacturing325998 | 100-499 | ◐ LIKELY ACTIVE |
| II"CRC Industries, Inc. - Ivyland" | Ivyland | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| CECroydon Emulsions | Croydon | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| CLCupod LLC | Hermitage | PA | Chemical Manufacturing325612 | — | ◐ LIKELY ACTIVE |
| DGDaka Group LLC | Yardley | PA | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| DODale Oxygen Inc. | Johnstown | PA | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| DCDart Container Corporation - Leola | Leola | PA | Chemical Manufacturing325211 | 500+ | ◐ LIKELY ACTIVE |
| DPDesign Plastic Systems INC | Norristown | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| DDetwiler | Harleysville | PA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| DBDiavac Biotech Company | Doylestown | PA | Chemical Manufacturing325413 | — | ▲ REPORTED CLOSED |
| DTDuPont Towanda | Towanda | PA | Chemical Manufacturing325992 | 100-499 | ◐ LIKELY ACTIVE |
| ELEmbrace.byniss L.l.c | Sharon Hill | PA | Chemical Manufacturing325620 | — | ◐ LIKELY ACTIVE |
| EAEms Acquisition CORP. | Morgantown | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| ELEmzak LTD | Warminster | PA | Chemical Manufacturing325612 | — | ◐ LIKELY ACTIVE |
| EUEndo USA, Inc. Horsham | Horsham | PA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| EEntegris | Chester | PA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| EAEntegris - Ambler | Lower Gwynedd Township | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| EVEnterprise Ventures Corporation - JST | Johnstown | PA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| FFairless | Morrisville | PA | Chemical Manufacturing325120 | 100-499 | ◐ LIKELY ACTIVE |
| FFenwick | Allentown | PA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| FSField Services | Pittsburgh | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| FHFinishWorks (New Holland, PA) | New Holland | PA | Chemical Manufacturing325510 | 1-19 | ◐ LIKELY ACTIVE |
| FTFMC Tower | Philadelphia | PA | Chemical Manufacturing325320 | 100-499 | ◐ LIKELY ACTIVE |
| FBFocus Biomolecules, LLC | Plymouth Meeting | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| FIFUJIFILM Irvine Scientific - Warminster | Warminster | PA | Chemical Manufacturing325414 | 20-99 | ◐ LIKELY ACTIVE |
Fujirebio Diagnostics Inc., Malvern | Malvern | PA | Chemical Manufacturing325413 | 100-499 | ◐ LIKELY ACTIVE |
| GGelest | Glen Rock | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| GGfw | Temple | PA | Chemical Manufacturing325314 | 1-19 | ◐ LIKELY ACTIVE |
| GNGMP Nutraceuticals | King of Prussia | PA | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| GSGold Standard Diagnostics Horsham, LLC | Horsham | PA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| GAGriff Applied Laminates | Fallsington | PA | Chemical Manufacturing325992 | 20-99 | ◐ LIKELY ACTIVE |
| GCGriff Converting Services | Fallsington | PA | Chemical Manufacturing325992 | 20-99 | ◐ LIKELY ACTIVE |
| GPGriff Paper and Film | Fallsington | PA | Chemical Manufacturing325992 | 20-99 | ◐ LIKELY ACTIVE |
| GUGSK - UM Biopharm | West Conshocken | PA | Chemical Manufacturing325412 | 500+ | ◐ LIKELY ACTIVE |
| GCGuardian Csc, LLC | Hellam | PA | Chemical Manufacturing325998 | — | ▲ REPORTED CLOSED |
| HTHanimune Therapeutics, INC. | Philadelphia | PA | Chemical Manufacturing325411 | — | ◐ LIKELY ACTIVE |
| HBHanover Branch 51 | Hanover | PA | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| HUHepalink USA INC | Langhorne | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| HRHumble Remedy LLC | Enola | PA | Chemical Manufacturing325620 | — | ◐ LIKELY ACTIVE |
| IIova-a | Philadelphia | PA | Chemical Manufacturing325414 | 20-99 | ◐ LIKELY ACTIVE |
| IPITW Performance Polymers | Montgomeryville | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |