| BDBellmeade Dry Clnr | Altoona | — | ◇ UNVERIFIED |
| BOBerkebile Oil CO INC | Somerset | 20–99 | ◇ UNVERIFIED |
| BPBerkley Prods CO | Akron | — | ◇ UNVERIFIED |
| BJB & J Group Inc/morrisville | Morrisville | — | ◇ UNVERIFIED |
| BIBostik INC | Huntingdon Valley | — | ◇ UNVERIFIED |
| BPBradley Paint CO | Connellsville | — | ◇ UNVERIFIED |
| BCBulk Chemical INC | Mohrsville | — | ◇ UNVERIFIED |
| BCBulk Chemicals, INC. | Shoemakersville | — | ◇ UNVERIFIED |
| BCBulk Chemicals, INC. | Blandon | — | ◇ UNVERIFIED |
| CICantol INC | Philadelphia | — | ◇ UNVERIFIED |
| CCCapen Careful Clnrs | Harrisburg | — | ◇ UNVERIFIED |
| CICargill, INC. - Salt Division | Mckees Rocks | — | ◇ UNVERIFIED |
| CCCarlisle Construction Materials | Carlisle | — | ◇ UNVERIFIED |
| CRCastle Rubber Mfg | East Butler | — | ◇ UNVERIFIED |
| CCCayman Chemical CO | State College | — | ◇ UNVERIFIED |
| CDCei - Douglassville INC | Douglassville | — | ◇ UNVERIFIED |
| CCCeramic Color & Chem Mfg CO Plt | New Brighton | — | ◇ UNVERIFIED |
| CPChemstation Philadelphia | Phillipsburg | — | ◇ UNVERIFIED |
| CIChemstream INC | Stoystown | — | ◇ UNVERIFIED |
| CSCindys Signature Clnr & Tailors/abington | Roslyn | — | ◇ UNVERIFIED |
| CCClariant CORP Kion Facility | Huntingdon Valley | — | ◇ UNVERIFIED |
| CIClearwater INC. | Pittsburgh | — | ◇ UNVERIFIED |
| CTCoates Toners/dallas | Dallas | — | ◇ UNVERIFIED |
| CCColonial Clnr/norristown Boro | Norristown | — | ◇ UNVERIFIED |
| CIComptec Inc/comptec Insulator Plt | Irwin | — | ◇ UNVERIFIED |
| CCContinental Carbonic Products Inc.-clearfield | Clearfield | — | ◇ UNVERIFIED |
| CCCorixa CORP. Dba Glaxosmithkline Biologicals NA Wwtp | Marietta | — | ◇ UNVERIFIED |
| CFCountry Fresh Clnr/montgomery Twp | Montgomeryville | — | ◇ UNVERIFIED |
| COCpa Operations, LLC D/b/a/ Lensco | Philadelphia | — | ◇ UNVERIFIED |
| CACrazy Aaron Enterprises/east Pikeland | Phoenixville | — | ◇ UNVERIFIED |
| CTCreighton Term | Creighton | — | ◇ UNVERIFIED |
| CLCresco Labs Brookville | Brookville | — | ◇ UNVERIFIED |
| CPCtr Point Clnr | Worcester | — | ◇ UNVERIFIED |
| CCCurtis/glenchem CORP. | Eddystone | — | ◇ UNVERIFIED |
| DSDerby Supply Chain Solutions | Allentown | — | ◇ UNVERIFIED |
| DCDow Chem Plp | Royersford | — | ◇ UNVERIFIED |
| DUDreumex USA | York | — | ◇ UNVERIFIED |
| DUDreumex USA INC | York | — | ◇ UNVERIFIED |
| DLDrs Laboratories, INC | Allentown | — | ◇ UNVERIFIED |
| DADwmp Assoc Llc/hazleton | Hazleton | — | ◇ UNVERIFIED |
| EIEarthworx, INC. | Brookville | — | ◇ UNVERIFIED |
| EEE. E. Zimmerman | Pittsburgh | — | ◇ UNVERIFIED |
| EPEmd Performance Materials CORP. | Philadelphia | — | ◇ UNVERIFIED |
| ELEstee Lauder Returns Center C/o Fedex Supply Chain | Lemoyne | — | ◇ UNVERIFIED |
| ESEvergreen Synergies | King of Prussia | — | ◇ UNVERIFIED |
| FCFed Carbide/bald Eagle Plt | Tyrone | — | ◇ UNVERIFIED |
| FCFerro Color & Glass Corp/washington | Washington | — | ◇ UNVERIFIED |
| FGFerro Glass & Color CORP | Washington | — | ◇ UNVERIFIED |
| FSFisher Scientific Co/indiana Plt | Indiana | — | ◇ UNVERIFIED |
| FTFisher & Thompson, INC. | Leola | — | ◇ UNVERIFIED |
