| HCHenwil CORP | Newell | PA | Chemical Manufacturing325311 | 20-99 | ◐ LIKELY ACTIVE |
| JAJames Austin Company | Mars | PA | Chemical Manufacturing325611 | 100-499 | ◐ LIKELY ACTIVE |
| JPJamestown Paint Co/mercer | Jamestown | PA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| JLJ Lok | Cresson | PA | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |
| LILabchem INC | Zelienople | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| MPMisco Products | Reading | PA | Chemical Manufacturing325611 | 100-499 | ◐ LIKELY ACTIVE |
| NMNorth Metal & Chemical CO | York | PA | Chemical Manufacturing325130 | 1-19 | ◐ LIKELY ACTIVE |
| PSParticle Size Tech/quakertown | Quakertown | PA | Chemical Manufacturing325412 | 1-19 | ◐ LIKELY ACTIVE |
| PCPenn Color/hatfield | Hatfield | PA | Textile Mills313210 | 100-499 | ◐ LIKELY ACTIVE |
| PIPolyflo, INC. | Saint Clair | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| RIReaxis INC | Mc Donald | PA | Chemical Manufacturing325130 | 20-99 | ◐ LIKELY ACTIVE |
| UGUnited Gilsonite Labs | Dunmore | PA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| ALArdex Laboratories INC | Philadelphia | PA | Chemical Manufacturing325612 | 20-99 | ◐ LIKELY ACTIVE |
| CIChemson INC | Philadelphia | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| FIFielco Industries | Huntingdon Valley | PA | Chemical Manufacturing325520 | 1-19 | ◐ LIKELY ACTIVE |
| FIFilmtronics INC | Butler | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| FIForce Industries | Paoli | PA | Chemical Manufacturing325199 | 1-19 | ◐ LIKELY ACTIVE |
| JPJr Peters INC | Allentown | PA | Chemical Manufacturing325311 | 20-99 | ◐ LIKELY ACTIVE |
| KMKore Mart Limited | Hamburg | PA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| PCPressure Chem Co/pgh | Pittsburgh | PA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| TMTroy Manufacturing, INC. | Hazleton | PA | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| AIAdvansix INC | Philadelphia | PA | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| APAir Prods & Chemicals INC - Specialty Gas Div | Tamaqua | PA | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| ANAkzo Nobel Coatings Inc/reading | Reading | PA | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| ACAltasciences Cdmo Philadelphia | Harleysville | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| APAmetek/westchester Plastics Div | Nesquehoning | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| AIArkema INC. | Bristol | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| ALArxada LLC | Williamsport | PA | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| ASAshland Specialty Chemical Co.- Neville Island, Pa | Pittsburgh | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| ADAvery Dennison Performance Polymers | Mill Hall | PA | Chemical Manufacturing325520 | — | ◐ LIKELY ACTIVE |
| ARAvid Radiopharmaceuticals | Philadelphia | PA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| BCBasf CORP | Monaca | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| BEBasf Evans City Ops | Evans City | PA | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
| BPBehr Proc Corp/allentown | Allentown | PA | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
Braeburn INC | Plymouth Meeting | PA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| BABraskem Amer Inc/marcus Hook | Marcus Hook | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| CFCenter for Breakthrough Medicines - Building 29a | King of Prussia | PA | Chemical Manufacturing325414 | 100-499 | ◐ LIKELY ACTIVE |
| CPCherokee Pharm Llc/riverside Boro Plt | Riverside | PA | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| CSChester Specialty Chem / Chester City | Chester | PA | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| CIColorcon Inc/upper Gwynedd | West Point | PA | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
| CICrc Industries INC | Warminster | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| DCDart Container CORP of Pennsylvania | Leola | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| DCDober Chemical Corporation | Hazleton | PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
Eastman Chemical Company | West Elizabeth | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| EDEsschem Div of Justi Group Inc/linwood | Linwood | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| EEEsstech Essington Fac | Essington | PA | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| FLFedchem Llc/bethlehem | Bethlehem | PA | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| FAFlexsys Amer LTD Par/monongahela | Monongahela | PA | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| FCFmc Corporation | Philadelphia | PA | Chemical Manufacturing325180 | 500+ | ◐ LIKELY ACTIVE |
| FMFragrance Manufacturing, INC. | Allentown | PA | Chemical Manufacturing325199 | 100-499 | ◐ LIKELY ACTIVE |