| CCCandler Concrete Products, INC. | Gainesville | GA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBCantelli Block & Brick | Huron | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CPCantera Perez | Humacao | PR | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CFCape Fear Concrete | Supply | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CGCap Glass Allentown Llc/northampton Plt | Northampton | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| CCCapital Concrete CO Elgin | Elgin | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCapital Concrete CO Gaston | Gaston | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCapital Concrete CO Lexington | Lexington | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCapital Concrete Incorporated | Windsor | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCapital Concrete Products | Del Valle | TX | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CDCapital District Batching CO | Albany | NY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCapitol Concrete Products | Topeka | KS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CGCapitol Granite LLC | Midlothian | VA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CCCarbo Ceramics INC | New Iberia | LA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CCCarbo Ceramics INC - Marshfield Plant | Marshfield | WI | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CCCarder Concrete Products Company | Brighton | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCardinal Cg | Moreno Valley | CA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| CCCardinal Cg | Galt | CA | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| CCCardinal Concrete-warrenton | Warrenton | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCardinal Red-e-mix | East Moline | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCardinal Red-e-mix CO | Carbon Cliff | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSCardinal Shoe Corporation | Lawrence | MA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CICargill Inc-sioux City-refinery | Sioux City | IA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| CTCarlile Transportation Systems | Tacoma | WA | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| CICarlisle Industrial Brake & Friction | Logansport | IN | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CGCarlo Gavazzi Electronic Packaging | Brockton | MA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CRCarl Rose & Sons Ready-mix Concrete, INC. - Jonesville Plant | Jonesville | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
 Carmeuse Lime INC. - Huron Plant (0322010062) | Huron | OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| Carmeuse Lime INC Millersville Operations (0372000081) | Millersville | OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| CLCarmeuse Lime Maple Grove Operations | Bettsville | OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| CCCarolina Cast Stone Company Incorporated | Greensboro | NC | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CCCarolina Concrete CO INC | Gray Court | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCarolina Concrete Company - Clinton | Clinton | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CPCarolina Perlite Company, INC. | Gold Hill | NC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CPCarolina Precast Concrete Incorporated | Dunn | NC | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CRCarolina Ready Mix, LLC - Tabor City | Tabor City | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCarroll Concrete | Berlin | VT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCarroll Concrete | Vernon | VT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCarroll Concrete | Swanton | VT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBCarroll's Building Materials | Saint Petersburg | FL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCarus Chemical CO | Ottawa | IL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CCCascade Const- Alliance Ready Mix | Delta Area | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CCCash Concrete Products Plant 1 | Greencastle | IN | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CCCash Concrete Russellville Plant | Russellville | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSCasola Stained Glass Studio INC | Fort Myers | FL | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| CCCastaic Clay Manufacturing Company Incorporated | Castaic | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CBCastle Bldr Supply New Castle | New Castle | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBCastle Builders Supply Indiana Concrete Plt | Penn Run | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| CBCastle Builders Supply Kittanning Concrete Plt | Kittanning | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| CCCastle Concrete CO | El Paso County | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
