| BCBasf CORP | Erie | PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| BPBayer Polymers LLC | Newtown Square | PA | Chemical Manufacturing325000 | — | ◇ UNVERIFIED |
| BUBayer USA INC | Pittsburgh | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| BDBellmeade Dry Clnr | Altoona | PA | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| BPBerkley Prods CO | Akron | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BBBiospectra Bangor Facility | Bangor | PA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BJB & J Group Inc/morrisville | Morrisville | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BIBostik INC | Huntingdon Valley | PA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| BOBp Oil #07160 | Mc Kees Rocks | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| BPBradley Paint CO | Connellsville | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BCBulk Chemical INC | Mohrsville | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| BCBulk Chemicals INC | Hamburg | PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| BCBulk Chemicals, INC. | Blandon | PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| BCBulk Chemicals, INC. | Shoemakersville | PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| BCBulk Chem INC | Reading | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CICalbar INC. | Philadelphia | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CICantol INC | Philadelphia | PA | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| CCCapen Careful Clnrs | Harrisburg | PA | Chemical Manufacturing325310 | — | ◇ UNVERIFIED |
| CICargill, INC. - Salt Division | Mc Kees Rocks | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CCCarlisle Construction Materials | Carlisle | PA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| CRCastle Rubber Mfg | East Butler | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CCCayman Chemical CO | State College | PA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| CDCei - Douglassville INC | Douglassville | PA | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| CCCharles Clnrs | Lansdale | PA | Chemical Manufacturing325000 | — | ◇ UNVERIFIED |
| CIChemson INC | Philadelphia | PA | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| CPChemstation Philadelphia | Phillipsburg | PA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CPChemstation Pittsburgh | West Newton | PA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CIChemstream INC | Stoystown | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CSCindys Signature Clnr & Tailors/abington | Roslyn | PA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| CCClariant CORP Kion Facility | Huntingdon Valley | PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| CIClearwater INC. | Pittsburgh | PA | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| CTCoates Toners/dallas | Dallas | PA | Chemical Manufacturing325194 | — | ◇ UNVERIFIED |
| CCColonial Clnr/norristown Boro | Norristown | PA | Chemical Manufacturing325100 | — | ◇ UNVERIFIED |
| CTConidio Tec, LLC | State College | PA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CCContinental Carbonic Products Inc.-clearfield | Clearfield | PA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| CCCorixa CORP. Dba Glaxosmithkline Biologicals NA Wwtp | Marietta | PA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| CFCountry Fresh Clnr/montgomery Twp | Montgomeryville | PA | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| CLCovestro LLC | Pittsburgh | PA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| COCpa Operations, LLC D/b/a/ Lensco | Philadelphia | PA | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| CACrazy Aaron Enterprises/east Pikeland | Phoenixville | PA | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| CLCresco Labs Brookville | Brookville | PA | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| CPCtr Point Clnr | Worcester | PA | Chemical Manufacturing325131 | — | ◇ UNVERIFIED |
| CCCurtis/glenchem CORP. | Eddystone | PA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CCCynwyd Clnr Svc | Bala Cynwyd | PA | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| DCDames Chevrolet Inc/pottstown | Pottstown | PA | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| DCDaniel Clnr Svc | Willow Grove | PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| DCDeist Clnrs | Bedford | PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| DCDelight Clnr/layfayette Hill | Lafayette Hill | PA | Chemical Manufacturing325181 | — | ◇ UNVERIFIED |
| DSDerby Supply Chain Solutions | Allentown | PA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| DCDickler Chemical Labs | Philadelphia | PA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
