| CAChemtreat at Terminal Warehouse | Akron | OH | — | ◇ UNVERIFIED |
| CCChemtura Corporation | Memphis | TN | — | ◇ UNVERIFIED |
| CHC & H Molding | Mira Loma | CA | — | ◇ UNVERIFIED |
| CLChristen & Laudon- Aep Fgd Project | Tiltonsville | OH | — | ◇ UNVERIFIED |
| CSCiba Specialty Chemicals CORP | Los Angeles | CA | — | ◇ UNVERIFIED |
| CHCirculus Holdings Pbllc | Riverbank | CA | — | ◇ UNVERIFIED |
| CECirrus Enterprises Dba E.v. Roberts | Culver City | CA | — | ◇ UNVERIFIED |
| CMCirtec Medical CORP | Sturtevant | WI | — | ◇ UNVERIFIED |
| CPCitadel Plastics | Perrysburg | OH | — | ◇ UNVERIFIED |
| CJC J Fiberglass CO | Long Beach | CA | — | ◇ UNVERIFIED |
| CJC J Osborn Company | Pennsauken | NJ | — | ◇ UNVERIFIED |
| CRClarence Resins and Chemicals | Williamsville | NY | — | ◇ UNVERIFIED |
| COClariant of Maine | Lewiston | ME | — | ◇ UNVERIFIED |
| CFClark Foam Prod Gordon Clark | Laguna Niguel | CA | — | ◇ UNVERIFIED |
| CCClean Cut Technologies LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| CWClean Water Opportunities, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CClearplex | Sandy | UT | — | ◇ UNVERIFIED |
| CTClose the Loop INC | Hebron | KY | — | ◇ UNVERIFIED |
| CPClover Plastics LLC | West Chicago | IL | — | ◇ UNVERIFIED |
| CPCmc Printed Bag INC | Whittier | CA | — | ◇ UNVERIFIED |
| CECmi Enterprises | Forest City | NC | — | ◇ UNVERIFIED |
| CBCoastal Bend Staffing, LLC | Lolita | TX | — | ◇ UNVERIFIED |
| CPCoastal Plastics INC | Hope Valley | RI | — | ◇ UNVERIFIED |
| CCCoast Converters INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| CCColorado Chemical Specialties Incorporated | Golden | CO | — | ◇ UNVERIFIED |
| CRColorado Rubber and Supply | Denver | CO | — | ◇ UNVERIFIED |
| CSColorite Specialty Resins | Burlington Township | NJ | — | ◇ UNVERIFIED |
| CPColumbine Plastic CORP | Boulder | CO | — | ◇ UNVERIFIED |
| CCComplementary Coatings CORP | Edgewater | FL | — | ◇ UNVERIFIED |
| CComposecure | Somerset | NJ | — | ◇ UNVERIFIED |
| CPComposite Plastic Systems INC | Santa Maria | CA | — | ◇ UNVERIFIED |
| CPComposite Product Division Freeport | Freeport | TX | — | ◇ UNVERIFIED |
| CSComposite Solutions CORP Sumner | Sumner | WA | — | ◇ UNVERIFIED |
| CFConcept Fiberglass | Grand Island | NE | — | ◇ UNVERIFIED |
| CPConductive Plastics Consultants | Media | PA | — | ◇ UNVERIFIED |
| CCCongoleum CORP | Trenton | NJ | — | ◇ UNVERIFIED |
| CSConnor Sport Court International, LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
 Contemporary Design Plastics | Arlington | TX | — | ◇ UNVERIFIED |
| CSContinental Structural Plastics | Carey | OH | — | ◇ UNVERIFIED |
| CCCook Composites and Polymers CO. | N. Kansas City | MO | — | ◇ UNVERIFIED |
| CCCook Composites & Polymers CO. | Oxnard | CA | — | ◇ UNVERIFIED |
| CPCook Paint and Varnish Company | Houston | TX | — | ◇ UNVERIFIED |
| CPCook Polymer Technologies Canton | Canton | IL | — | ◇ UNVERIFIED |
| CPCookson Performance Plastics | Worcester | MA | — | ◇ UNVERIFIED |
| CSCool Seal Usa, LLC | Perrysburg | OH | — | ◇ UNVERIFIED |
| CECooper Electronic Technologies | Dublin | CA | — | ◇ UNVERIFIED |
 Cope Plastics, INC. | Genoa City | WI | — | ◇ UNVERIFIED |
| CCCore Composites Cincinnati, LLC (1413020248) | Batavia | OH | — | ◇ UNVERIFIED |
| CCCorpus Christi Polymer Plant | Corpus Christi | TX | — | ◇ UNVERIFIED |
| CMCorsair Marine INC | Chula Vista | CA | — | ◇ UNVERIFIED |
| CPCountry Plastics INC | Woodlake | CA | — | ◇ UNVERIFIED |
| CPCovalence Plastics | Elizabeth | NJ | — | ◇ UNVERIFIED |
| CICovermaster, INC. | Elkhart | IN | — | ◇ UNVERIFIED |
| CCovestro | Augusta | GA | — | ◇ UNVERIFIED |
| CCCovestro Coating Resins INC | Wilmington | MA | — | ◇ UNVERIFIED |
| CLCovestro LLC | Baytown | TX | — | ◇ UNVERIFIED |
| CLCovestro LLC | Deerfield | MA | — | ◇ UNVERIFIED |
| CCovia | Cutler | IL | — | ◇ UNVERIFIED |
| CICpg International LLC | Wilmington | OH | — | ◇ UNVERIFIED |
| CICpg Intl | Moosic | PA | — | ◇ UNVERIFIED |
| CVCray Valley USA LLC | Houston | TX | — | ◇ UNVERIFIED |
| CVCray Valley Wallisville Rd | Channelview | TX | — | ◇ UNVERIFIED |
| CPCreative Plastic's Corporation | Palmyra | WI | — | ◇ UNVERIFIED |
| CMCrestwood Membrane INC | Mountain Top | PA | — | ◇ UNVERIFIED |
| CRC & R Extrusions | Rosemead | CA | — | ◇ UNVERIFIED |
| CSCri-sil Silicone Technologies, LLC | Biddeford | ME | — | ◇ UNVERIFIED |
| CTCrown Technology Ii L L C | Woodbury | GA | — | ◇ UNVERIFIED |
| CICryovac INC | Rochester | NY | — | ◇ UNVERIFIED |
| CSCryovac Sealed Air | Saint Joseph | MO | — | ◇ UNVERIFIED |
| CSC S Polymer | Newport News | VA | — | ◇ UNVERIFIED |
| CPCT Polymers, LLC | Bourbon | IN | — | ◇ UNVERIFIED |
| CBCustom Bag Division, INC. | Lexington | OH | — | ◇ UNVERIFIED |
| CCCustom Creations LLC | Voorhees | NJ | — | ◇ UNVERIFIED |
| CDCustom Decorative Mouldings | Greenwood | DE | — | ◇ UNVERIFIED |
| CFCustom Foam Molders Inc-custom Foam Molders INC | Foristell | MO | — | ◇ UNVERIFIED |
| CMCustom Marble & Onyx | Modesto | CA | — | ◇ UNVERIFIED |
| CPCustom Polymer Lucas Ferry | Athens | AL | — | ◇ UNVERIFIED |
| CPCustom Polymers Pet, LLC | Athens | AL | — | ◇ UNVERIFIED |
 Custom Products, INC. | Mooresville | NC | — | ◇ UNVERIFIED |
| CRCustom Resins INC | Henderson | KY | — | ◇ UNVERIFIED |
| CPCypress Polypropylene Plant Union Carbide CORP. | Norco | LA | — | ◇ UNVERIFIED |
| CPCytech Products INC | Glendale | KY | — | ◇ UNVERIFIED |
| CICytec Industries | Springfield | MA | — | ◇ UNVERIFIED |
| CICytec Industries INC | Woodbridge | NJ | — | ◇ UNVERIFIED |
| CICytec Industries INC. | New Castle | DE | — | ◇ UNVERIFIED |
| CCytiva-muskegon | Muskegon | MI | — | ◇ UNVERIFIED |
| CUCytiva US LLC | Pensacola | FL | — | ◇ UNVERIFIED |
| CICytosorbents INC | Monmouth Junction | NJ | — | ◇ UNVERIFIED |
| DADak Americas Mississippi INC | Bay Saint Louis | MS | — | ◇ UNVERIFIED |
| DCDana Container, INC. | Wilmington | DE | — | ◇ UNVERIFIED |
| DIDanafilms, INC. | Westboro | MA | — | ◇ UNVERIFIED |
| DCDanvers Chemical Ind | Danvers | MA | — | ◇ UNVERIFIED |
| DADanzas Aei Intercontinental Warehouse | Laredo | TX | — | ◇ UNVERIFIED |
| DLDaramic LLC | Corydon | IN | — | ◇ UNVERIFIED |
| DCDart Container Corporation of Kentucky | Saint Joseph | KY | — | ◇ UNVERIFIED |
| DCDart Container Corporation of Kentucky Dba Dart Po | Owensboro | KY | — | ◇ UNVERIFIED |
| DDayton | Dayton | NV | — | ◇ UNVERIFIED |
| DKDba Kennerley-spratling INC | San Leandro | CA | — | ◇ UNVERIFIED |
| DSDdp Specialty Electronic Materials US 9, LLC | Greensboro | NC | — | ◇ UNVERIFIED |
| DSDdp Specialty Electronic Materials US LLC | Dalton | GA | — | ◇ UNVERIFIED |
