| CWChemco Water Technology Site | Vancouver | WA | — | ◇ UNVERIFIED |
| CBChemical Blending and Packagi | Mills | WY | — | ◇ UNVERIFIED |
| CLChemical Laboratories | Tampa | FL | — | ◇ UNVERIFIED |
 Chemical Manufacturers, INC. | Compton | CA | — | ◇ UNVERIFIED |
| CIChemicals, INC. | Fontana | CA | — | ◇ UNVERIFIED |
| CTChemical Technologies LLC | Elizabethton | TN | — | ◇ UNVERIFIED |
| CIChem Inventions LLC | Parsippany | NJ | — | ◇ UNVERIFIED |
| CIChem Inventions LLC | Whippany | NJ | — | ◇ UNVERIFIED |
| CIChempak International | Houston | TX | — | ◇ UNVERIFIED |
| CChem-ship | East Point | GA | — | ◇ UNVERIFIED |
| CIChemstream INC | Stoystown | PA | — | ◇ UNVERIFIED |
| CIChemstream INC Indiana Branch | Indiana | PA | — | ◇ UNVERIFIED |
| CIChemstream INC Midwest Branch | West Frankfort | IL | — | ◇ UNVERIFIED |
| CSChem-Tech Solutions, Inc. | Gastonia | NC | — | ◇ UNVERIFIED |
| CChemtreat | Norco | LA | — | ◇ UNVERIFIED |
| CAChemtreat at Terminal Warehouse | Akron | OH | — | ◇ UNVERIFIED |
| CEChemtreat (c/o Extra Space Storage) | Newport News | VA | — | ◇ UNVERIFIED |
| CCChemtreat Containers - American Storage & Distribution | Catano | PR | — | ◇ UNVERIFIED |
| CRChemtreat (c/o Roysoncorp) | Rockaway | NJ | — | ◇ UNVERIFIED |
| CCChemtreat C/o Tyler Moving and Storage | Dover | OH | — | ◇ UNVERIFIED |
| CTChem Treat C/o Wacker Polysilicon | Charleston | TN | — | ◇ UNVERIFIED |
| CWChemtreat (hawaii Warehouse) | Honolulu | HI | — | ◇ UNVERIFIED |
| CIChemtreat, INC | Hialeah | FL | — | ◇ UNVERIFIED |
| CRChemtreat (red River Supply Warehouse) | Williston | ND | — | ◇ UNVERIFIED |
| CWChemtreat (savage Warehouse) | Auburn | ME | — | ◇ UNVERIFIED |
| CTChemtreat Technology and Innovation Center | Ashland | VA | — | ◇ UNVERIFIED |
| CSChemtron Supply CORP Dba Chemtron Riverbend | Saint Charles | MO | — | ◇ UNVERIFIED |
| CCChevron Chemical Company | Richmond | CA | — | ◇ UNVERIFIED |
| CMChilo Manufacturing & Plating Company | Chicago | IL | — | ◇ UNVERIFIED |
| CPChromalloy Pacific Gas Turbine Center | San Diego | CA | — | ◇ UNVERIFIED |
| CIChryso, INC | Zellwood | FL | — | ◇ UNVERIFIED |
| CIChryso Incorporated | Charlestown | IN | — | ◇ UNVERIFIED |
| CNCie Nd Warehouse (chemtreat Containers) | Commerce | CA | — | ◇ UNVERIFIED |
| CLCiim, LLC | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| COCity of Long Beach | Long Beach | CA | — | ◇ UNVERIFIED |
| CJC J R Processing CO | Des Plaines | IL | — | ◇ UNVERIFIED |
| CMClaire Manufacturing | Addison | IL | — | ◇ UNVERIFIED |
| CCClariant Corporation - Palo Alto | Palo Alto | CA | — | ◇ UNVERIFIED |
| COClariant Oil Services | Clinton | OK | — | ◇ UNVERIFIED |
| CPClariant Plastics & Coating USA INC Chino | Chino | CA | — | ◇ UNVERIFIED |
| CAClean Advantage | Taylors | SC | — | ◇ UNVERIFIED |
| CEClean Earth of Alabama | Glencoe | AL | — | ◇ UNVERIFIED |
| CLClean Lites | Mason | MI | — | ◇ UNVERIFIED |
| CNCloud Nine Vapor LLC | Butler | PA | — | ◇ UNVERIFIED |
| CICmcms INC | Foley | MN | — | ◇ UNVERIFIED |
| CSCmi Specialty Systems LLC | Auburn Hills | MI | — | ◇ UNVERIFIED |
| CCCoastal Chemical Co., LLC - Rock Springs | Sweetwater | WY | — | ◇ UNVERIFIED |
| CICoastal Industrial Company, INC. | Townsend | GA | — | ◇ UNVERIFIED |
| CSCoated Sand Solutions LLC | Rochelle | IL | — | ◇ UNVERIFIED |
| CMCollier Manufacturing LLC | Manchester | TN | — | ◇ UNVERIFIED |
