| CCCarlisle Coatings A/waterproofing Mfg Pl | Sapulpa | OK | — | ◇ UNVERIFIED |
| CCCarlisle Construction Materials | Carlisle | PA | — | ◇ UNVERIFIED |
| CRCastle Rubber Mfg | East Butler | PA | — | ◇ UNVERIFIED |
| CHCastrol Heavy Duty Lubricants | Worcester | MA | — | ◇ UNVERIFIED |
| CICastrol Industrial | Los Angeles | CA | — | ◇ UNVERIFIED |
| CICastrol Industrial North America INC | North Aurora | IL | — | ◇ UNVERIFIED |
| CIC&c Industrial Oil | Bainbridge | GA | — | ◇ UNVERIFIED |
| COCedar Oil Works | Hot Springs | AR | — | ◇ UNVERIFIED |
| CCCelta Chemical | Granite City | IL | — | ◇ UNVERIFIED |
| CACemex Admix Usa, LLC | Victorville | CA | — | ◇ UNVERIFIED |
| CACenter Alternative Energy CO Ii | Cleveland | OH | — | ◇ UNVERIFIED |
| COCentral Ohio Oil INC | Columbus | OH | — | ◇ UNVERIFIED |
| COCentral Oil & Supply CORP. | Monroe | LA | — | ◇ UNVERIFIED |
| CLCentury Lubricating Oils Incorporated | Kansas City | KS | — | ◇ UNVERIFIED |
| CMCermet Materials INC | Wilmington | DE | — | ◇ UNVERIFIED |
| CRCertified Refrigerant Service INC | Punta Gorda | FL | — | ◇ UNVERIFIED |
| CCChampion Coatings | Houston | TX | — | ◇ UNVERIFIED |
| CSChase & Sons INC | Randolph, Town of | MA | — | ◇ UNVERIFIED |
| CIChemex INC | Broussard | LA | — | ◇ UNVERIFIED |
| CSChemico Systems INC | Chesterfield Township | MI | — | ◇ UNVERIFIED |
| CPChemlink Petroleum | Lafayette | LA | — | ◇ UNVERIFIED |
| CLChemorse LTD | Des Moines | IA | — | ◇ UNVERIFIED |
| CIChempak International | Houston | TX | — | ◇ UNVERIFIED |
| CDChemstation Denver | Denver | CO | — | ◇ UNVERIFIED |
| CIChemstream INC | Stoystown | PA | — | ◇ UNVERIFIED |
| CIChemstream INC Midwest Branch | West Frankfort | IL | — | ◇ UNVERIFIED |
| CChemtool | Rockton | IL | — | ◇ UNVERIFIED |
| CIChemtool INC | Crystal Lake | IL | — | ◇ UNVERIFIED |
| CTChemtreat Technology and Innovation Center | Ashland | VA | — | ◇ UNVERIFIED |
| CUChevron USA - Wilson Creek Gas Plt | Meeker | CO | — | ◇ UNVERIFIED |
| CMChilo Manufacturing & Plating Company | Chicago | IL | — | ◇ UNVERIFIED |
| COChristenson Oil | Portland | OR | — | ◇ UNVERIFIED |
| CPChromalloy Pacific Gas Turbine Center | San Diego | CA | — | ◇ UNVERIFIED |
| CIChryso, INC. | Royse City | TX | — | ◇ UNVERIFIED |
| CIChryso, INC. | Denver | CO | — | ◇ UNVERIFIED |
| CPCitgo Petroleum CORP Formerly Cato Oil & Grease CO | Oklahoma City | OK | — | ◇ UNVERIFIED |
| COCity of Laredo Landfill | Laredo | TX | — | ◇ UNVERIFIED |
| CJC J R Processing CO | Des Plaines | IL | — | ◇ UNVERIFIED |
| CMClaire Manufacturing | Addison | IL | — | ◇ UNVERIFIED |
| COClariant Oil Services | Clinton | OK | — | ◇ UNVERIFIED |
| COClark Oil & Chemical/cochem INC | Cleveland | OH | — | ◇ UNVERIFIED |
| CAClarkson and Ford Company | Clifton | NJ | — | ◇ UNVERIFIED |
| COClean Oil Company LLC | La Porte | IN | — | ◇ UNVERIFIED |
| CAClear and Clean Pool Service | Deerfield Beach | FL | — | ◇ UNVERIFIED |
| CCCleveland Central Enterprises | Cleveland | OH | — | ◇ UNVERIFIED |
| CAClifton Adhesive INC | Wayne | NJ | — | ◇ UNVERIFIED |
| CMCloud Manufacturing, LLC | Union | MO | — | ◇ UNVERIFIED |
| CPClover Park Technical College Bldg 25 | Lakewood | WA | — | ◇ UNVERIFIED |
| CCCoastal Chemical CO LLC - Maurice Facility | Maurice | LA | — | ◇ UNVERIFIED |
| CSCoated Sand Solutions LLC | Rochelle | IL | — | ◇ UNVERIFIED |
| CCColonial Chemical Solutions INC | Savannah | GA | — | ◇ UNVERIFIED |
| CColorcraft | Somerset | NJ | — | ◇ UNVERIFIED |
| CIColor Image INC | Norcross | GA | — | ◇ UNVERIFIED |
| CCColumbia Cement Company | Freeport | NY | — | ◇ UNVERIFIED |
| CCColumbus Chemical Inds INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| CCColumbus Chemical Industries INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| CMCommercial Merchandising Corporation | Charlotte | NC | — | ◇ UNVERIFIED |
| CUCommercial Ullman Lubricants CO | Cleveland | OH | — | ◇ UNVERIFIED |
| CPCommodore Plastics, LLC | Bloomfield | NY | — | ◇ UNVERIFIED |
| CLComo Lube & Supplies INC | Duluth | MN | — | ◇ UNVERIFIED |
| CMCompass Minerals | Duluth | MN | — | ◇ UNVERIFIED |
| CPComplete Packaging Solutions LLC | Syracuse | NY | — | ◇ UNVERIFIED |
| CSComposite Structures | Omaha | NE | — | ◇ UNVERIFIED |
| CCConcrete Chemicals | San Carlos | CA | — | ◇ UNVERIFIED |
| CCContinental Chemical & Coatings | Woburn | MA | — | ◇ UNVERIFIED |
| CIContinental Industries | Tulsa | OK | — | ◇ UNVERIFIED |
| CICoral Industries INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CPCorrectional Products & Svcs | Westminster | CO | — | ◇ UNVERIFIED |
| CICoventya INC | Oriskany | NY | — | ◇ UNVERIFIED |
| CNCrc No 1 LLC | Morganfield | KY | — | ◇ UNVERIFIED |
| CRCrimson Renewable Energy, LP | Bakersfield | CA | — | ◇ UNVERIFIED |
| CRCri Recycling Service INC | Woodville | WI | — | ◇ UNVERIFIED |
| CCCriterion Catalysts & Technologies LP | Azusa | CA | — | ◇ UNVERIFIED |
| CPCrystal Packaging, INC. - 5185 National | Denver | CO | — | ◇ UNVERIFIED |
| CTCs Terminals LLC | Norfolk | VA | — | ◇ UNVERIFIED |
| CFCumberland Farms INC No 143746 | Zelienople | PA | — | ◇ UNVERIFIED |
| CECummings Environmental | Memphis | TN | — | ◇ UNVERIFIED |
| CECummings Environmental | Memphis | TN | — | ◇ UNVERIFIED |
| CCytec-solvay | Havre De Grace | MD | — | ◇ UNVERIFIED |
| DIDap INC | Dayton | OH | — | ◇ UNVERIFIED |
| DAD a Stuart CO | Philadelphia | PA | — | ◇ UNVERIFIED |
| DSDa Stuart CO | Chicago | IL | — | ◇ UNVERIFIED |
| DDDavid Downs Company | Cudahy | CA | — | ◇ UNVERIFIED |
| DSDayton Superior CORP | Kansas City | MO | — | ◇ UNVERIFIED |
 Dayton Superior Specialty Chem Ical CORP Edoco | Long Beach | CA | — | ◇ UNVERIFIED |
| DRDearborn Refining CO | Dearborn | MI | — | ◇ UNVERIFIED |
| DCDegussa Construction Chemicals Operation | Bloomington | MN | — | ◇ UNVERIFIED |
| DSDevan Sealants, INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| DCDeveco CORP | Belvidere | IL | — | ◇ UNVERIFIED |
| DMDfg Mercury CORP | Evanston | IL | — | ◇ UNVERIFIED |
| DBDiamond Biofuels INC | Mazon | IL | — | ◇ UNVERIFIED |
| DHDiamond Head Oil Refinery Div. | Harrison | NJ | — | ◇ UNVERIFIED |
| DRDiaz Refinery - Prp Committee Site Trust | Diaz | AR | — | ◇ UNVERIFIED |
| DIDic Imaging Products USA INC | Oak Creek | WI | — | ◇ UNVERIFIED |
| DMDiversified Manufacturing Corporation | Prescott | WI | — | ◇ UNVERIFIED |
| DCDixo CO. INC. | Rochelle Park | NJ | — | ◇ UNVERIFIED |
| DODixon Oil Recycling, INC. | De Smet | SD | — | ◇ UNVERIFIED |
| DTDixon Ticonderoga Company | Versailles | MO | — | ◇ UNVERIFIED |
| DND N R INC | Westland | MI | — | ◇ UNVERIFIED |
| DIDnr INC | Plymouth | MI | — | ◇ UNVERIFIED |
