| CSCollier Stone CO - Mcshane Quarry | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CMColombo Mine | Sierra City | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CBColonial Brick Corporation | Cayuga | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CCColonial Concrete - Falmouth | Falmouth | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBColonie Block Manufacturing | Albany | NY | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CAColorado Aggregate | San Acacio | CO | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CCColumbia County Concrete CO INC | Williston | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CHColumbian Home Products, LLC | Terre Haute | IN | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| CPColumbia Precast, LLC | Columbia | TN | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CRColumbia River Carbonates Woodland | Woodland | WA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CRCommercial Ready Mix - Gordonsville | Fredericksburg | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCommercial Ready Mix Products | Edenton | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCommercial Ready Mix Products INC - Elizabeth City | Elizabeth City | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCommercial Ready Mix Products INC - Portable 52469 | Freeman | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCommercial Ready Mix Products INC - Portable 61860 | Suffolk | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRCommercial Refrigerator Door | Sarasota | FL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| CRCommerical Ready Mix Products | Ahoskie | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBCon-agg Boone Quarries | Columbia | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRConcordia Ready-mix | Concordia | KS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBConcrete Batch Plant 1 | Cedar Hill | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBConcrete Batch Plant, Gcp5-9545 | Taos | NM | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCConcrete Concepts of Tennessee | Powell | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CDConcrete Dakota Redi Mix INC. | Watertown | SD | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CEConcrete Enterprises | Hutchinson | KS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CEConcrete Enterprises - Kingman | Kingman | KS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CIConcrete Impressions of Florida | Deland | FL | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CIConcrete INC - Gifford | Union | IA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CMConcrete Materials CORP | Danville | KY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CNConcrete Norwest Getchell Pit | Lake Stevens | WA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CPConcrete Pipe and Precast, LLC | Jessup | MD | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CPConcrete Pipe and Precast LLC - Hanover Plant | Ashland | VA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CPConcrete Pipe & Precast LLC - Roanoke Plant | Roanoke | VA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CPConcrete Placing CO INC 00099 | Boise | ID | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CPConcrete Precast Systems INC - Chesapeake | Chesapeake | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CPConcrete Products INC | Middlesboro | KY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CRConcrete Resources Inc-wentzville | Wentzville | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Service - Clinton | Clinton | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Service Company - Pope Air Force Base Plant | Spring Lake | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Service CO Plant No 2 - Reilly | Fayetteville | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Shop INC | Vancouver | WA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CSConcrete Specialties CO | Franklin Park | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CSConcrete Specialties CO Hazel Crest | Markham | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CSConcrete Supply | Gastonia | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Supply | Topeka | KS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Supply CO - Aiken Plant | Aiken | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC | Columbia | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Aviation Avenue | North Charleston | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Batesburg | Batesburg | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Calks Ferry | Lexington | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Cemco Portable Plant | Jonesville | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
