| NINupro Industries Corporation | Philadelphia | PA | Food Manufacturing311225 | — | ◇ UNVERIFIED |
| RNReaction Nutrition, L.l.c. | Carnegie | PA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| SISparde Investments INC. | Evans City | PA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
Advanced Drainage Systems, INC. | Shippenville | PA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| AUAirgas Usa, LLC. | Pittsburgh | PA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| ALAkla LLC | Jamison | PA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| ANAkzo Nobel Paints, LLC | Downingtown | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ACAlex Color Company, INC. | Ashland | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| AAAlltech Associates INC. Dba Alltech Applied Science | State College | PA | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| AIAmerican Inks & Coatings/valley Forge | Valley Forge | PA | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| ASAmerican Solder & Flux Co., INC. | Paoli | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| APAmerigas Propane, INC. | North Versailles | PA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| AWAmetek Westchester Plastics | Nesquehoning | PA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| AAquachempacs | Huntingdon Valley | PA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| APAsk Plastics, INC. | Philadelphia | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| APAtalanti Polymer, Inc. | Pittsburgh | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| AFAura Fireworks, LLC. | Leechburg | PA | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| BOBailey-pvs Oxides, LLC | Canonsburg | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BLBarr Laboratories, INC. | North Wales | PA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| BGBerry Global Warehouse & Building & Site | Erie | PA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| BLBetz Labs INC Horsham | Horsham | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| BIBioarra, INC. | Harleysville | PA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BIBiocoat INC | Horsham | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BIBiospectra INC | Stroudsburg | PA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BMBlue Mountain Pigment, INC. | Northampton | PA | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| BIBoiron INC | Newtown Square | PA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BPBonehead Performance | Feasterville Trevose (Lower Southampton | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
Calgon Carbon CORP R&d | Pittsburgh | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CICarbon INC | Essington | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| CPCc Packaging LLC | Levittown | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
Cdg Environmental LLC | Allentown | PA | Chemical Manufacturing325181 | — | ◇ UNVERIFIED |
| CCCeramic Color & Chemical Manufacturer | Sewickley | PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| CCCeramic Color & Chemical Manufacturing Company, INC. | New Brighton | PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| CCCfi Custom Fiberglass Installations | Philadelphia | PA | Chemical Manufacturing325220 | — | ◇ UNVERIFIED |
| CICGI International, LLC and CGI International, Inc. | Washington | PA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| CLChem2o LLC | Herndon | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CFChemgro Fertilizer Company, INC. | East Petersburg | PA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CIChemstation International INC. | Warminster | PA | Chemical Manufacturing325181 | — | ◇ UNVERIFIED |
| CCChemtec Chemical CO | Souderton | PA | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| CICheri-lee INC. | Kulpmont | PA | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| CIChromatan Inc | State College | PA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CNCloud Nine Vapor LLC | Butler | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CUCoatech USA LLC | Lancaster | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CRColor Rite Distributing East, INC. | East Bangor | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CPConductive Plastics Consultants | Media | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| CCConsolidated Chemicals & Solvents (ccs) | Quakertown | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CRCosmic Roots LLC | Philadelphia | PA | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
Cp Industries | York | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CLCresco Labs Mount Joy | Mount Joy | PA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
Ctc Enterprise Ventures CORP | Johnstown | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |