| CPCalifornia Portland Cement | Littlerock | CA | — | ◇ UNVERIFIED |
| CPCalifornia Portland Cement CO | Torrance | CA | — | ◇ UNVERIFIED |
| CPCalifornia Portland Cement CO | Irwindale | CA | — | ◇ UNVERIFIED |
| CPCalifornia Portland Cement - Vista Chino | Thousand Palms | CA | — | ◇ UNVERIFIED |
| CRCalifornia Rock & Asphalt INC | Brisbane | CA | — | ◇ UNVERIFIED |
| CTCalifornia Towers | Glendale | CA | — | ◇ UNVERIFIED |
| CMCallaway Materials LLC | Fulton | MO | — | ◇ UNVERIFIED |
| CCCalloway CO Asphalt | Almo | KY | — | ◇ UNVERIFIED |
| C2Calmat - 20181 Nat'l Trails | Oro Grande | CA | — | ◇ UNVERIFIED |
| CACalmat Arizona - Higley Asphalt Plant | Mesa | AZ | — | ◇ UNVERIFIED |
| CCCalmat CO | El Toro | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | Poway | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | Corona | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | Irwindale | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | San Bernardino | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | Santa Ana | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | Montclair | CA | — | ◇ UNVERIFIED |
| CCCalmat CO. | Fresno | CA | — | ◇ UNVERIFIED |
| CCCalmat CO. | Bakersfield | CA | — | ◇ UNVERIFIED |
| CCCalmat CO. | Friant | CA | — | ◇ UNVERIFIED |
| CCCalmat CO Dba Shamrock Materials | Napa | CA | — | ◇ UNVERIFIED |
| CCCalmat Co/dba Vulcan Materials CO | Mettler | CA | — | ◇ UNVERIFIED |
| CCCalmat CO. Dba Vulcan Materials Company | Oxnard | CA | — | ◇ UNVERIFIED |
| CCCalmat CO Dba Vulcan Materials CO Otay Asphalt Plant | San Diego | CA | — | ◇ UNVERIFIED |
| CCCalmat Company | Pleasanton | CA | — | ◇ UNVERIFIED |
| CCCalmat Company | Sun Valley | CA | — | ◇ UNVERIFIED |
| CCCalmat Company | Irwindale | CA | — | ◇ UNVERIFIED |
| CCCalmat Company | Simi Valley | CA | — | ◇ UNVERIFIED |
| CCCalmat Company Dba Shamrock Materials INC | Petaluma | CA | — | ◇ UNVERIFIED |
| CCCalmat Company Dba Shamrock Materials-st Helena Plant | Saint Helena | CA | — | ◇ UNVERIFIED |
| CCCalmat CO (owner) | Upland | CA | — | ◇ UNVERIFIED |
| CGCalmat - Goleta | Goleta | CA | — | ◇ UNVERIFIED |
| CICalmat- Industrial Asphalt | Bakersfield | CA | — | ◇ UNVERIFIED |
| COCalmat of Fresno | Fresno | CA | — | ◇ UNVERIFIED |
| CMCal Mix Concrete Co, Inc, Dba California Ready Mix | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CCCalportland City of Champions | Inglewood | CA | — | ◇ UNVERIFIED |
| CCCalportland Company | Palm Springs | CA | — | ◇ UNVERIFIED |
| CCCalportland Company Escondido | Escondido | CA | — | ◇ UNVERIFIED |
| CCCalportland Company - Oceanside | Oceanside | CA | — | ◇ UNVERIFIED |
| CCCalportland Company Poorman Plant | Tucson | AZ | — | ◇ UNVERIFIED |
| CCCalportland Company Sky Harbor Plant | Phoenix | AZ | — | ◇ UNVERIFIED |
| CCCalportland Company (stockton West) | Stockton | CA | — | ◇ UNVERIFIED |
 Calportland Construction | Templeton | CA | — | ◇ UNVERIFIED |
| Calportland Construction | Paso Robles | CA | — | ◇ UNVERIFIED |
| Calportland Construction - 1529 E. Donovan Rd | Santa Maria | CA | — | ◇ UNVERIFIED |
| Calportland Construction - a St, Lompoc | Lompoc | CA | — | ◇ UNVERIFIED |
| Calportland Construction, Slo | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| Calportland Construction - Solvang Cbp | Solvang | CA | — | ◇ UNVERIFIED |
| CMCalportland Mcminnville Ready Mix Plant | Mcminnville | OR | — | ◇ UNVERIFIED |
| CNCalportland Newberg Ready Mix Plant | Newberg | OR | — | ◇ UNVERIFIED |
| CNCalportland New River Plant | Phoenix | AZ | — | ◇ UNVERIFIED |
| CWCalportland White Hills Facility | White Hills | AZ | — | ◇ UNVERIFIED |
| CSCal Shake INC | Irwindale | CA | — | ◇ UNVERIFIED |
| CCCalstone Company | Sunnyvale | CA | — | ◇ UNVERIFIED |
| CCCalstone Company | Galt | CA | — | ◇ UNVERIFIED |
| CCCalstone Company | Tracy | CA | — | ◇ UNVERIFIED |
| CCCalstone Company Dba Mission Concrete Products | Gilroy | CA | — | ◇ UNVERIFIED |
| CTCalstone Tracy-oldcastle Apg | Tracy | CA | — | ◇ UNVERIFIED |
| CCaltrans | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CCaltrans | Visalia | CA | — | ◇ UNVERIFIED |
| CDCaltrans District 7 Construction | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CCCamas Colorado, INC (cedar Rapids Wash) | Lakewood | CO | — | ◇ UNVERIFIED |
| CCCamas Colorado INC Ready Mix Division.cn | Idaho Springs | CO | — | ◇ UNVERIFIED |
| CACamden Alan LLC | Waterford | WI | — | ◇ UNVERIFIED |
| CPCameron Park | Shingle Springs | CA | — | ◇ UNVERIFIED |
| CSCamlu Senior Living Facility Renovation | Stockton | CA | — | ◇ UNVERIFIED |
| CRCampbell Rmc Tamina - Plant 31 | Conroe | TX | — | ◇ UNVERIFIED |
| CAC and E Concrete - Crouch Mesa Mha | Aztec | NM | — | ◇ UNVERIFIED |
| CSCantera San Antonio | Guaynabo | PR | — | ◇ UNVERIFIED |
| CDCanteras De Puerto Rico | Guaynabo | PR | — | ◇ UNVERIFIED |
| CRCanton Ready-mix INC | Havana | IL | — | ◇ UNVERIFIED |
| CRCanton Ready-mix INC | Canton | IL | — | ◇ UNVERIFIED |
| CRCanton Redi Mix INC | Canton | IL | — | ◇ UNVERIFIED |
| CRCanton Redi-mix Portable Plt | Dallas City | IL | — | ◇ UNVERIFIED |
| CSCanyon Stone | Lenexa | KS | — | ◇ UNVERIFIED |
| CCapa | Penitas | TX | — | ◇ UNVERIFIED |
| CCCape Cod Ready Mix Dennis Maintenance Facility | South Dennis | MA | — | ◇ UNVERIFIED |
| CCCape Cod Redi Mix Concrete | Eastham | MA | — | ◇ UNVERIFIED |
| CCCape Cod Redi Mix Concrete | Brewster | MA | — | ◇ UNVERIFIED |
| CFCape Fear Precast, LLC | Wilmington | NC | — | ◇ UNVERIFIED |
| CFCape Fear Precast, LLC | Jacksonville | NC | — | ◇ UNVERIFIED |
| CVCapistrano Villas Lii Hoa | San Juan Capistrano | CA | — | ◇ UNVERIFIED |
| CCCapital Cast Stone Inc. | Lebanon | IN | — | ◇ UNVERIFIED |
| CCCapital Concrete CO | Lincoln | NE | — | ◇ UNVERIFIED |
| CMCapital Materials, L.l.c. Port-0581 | Chillicothe | MO | — | ◇ UNVERIFIED |
| CPCapital Precast | San Marcos | TX | — | ◇ UNVERIFIED |
| CRCapital Ready Mix | Lincoln | CA | — | ◇ UNVERIFIED |
| CRCapital Ready Mix INC | Sun Valley | CA | — | ◇ UNVERIFIED |
| CRCapitol Ready Mix | Mount Pulaski | IL | — | ◇ UNVERIFIED |
| CRCapitol Ready Mix | Sacramento | CA | — | ◇ UNVERIFIED |
| CRCapitol Ready-mix, INC. | Springfield | IL | — | ◇ UNVERIFIED |
| CCCard Creek Pua Road Repair | Elk City | KS | — | ◇ UNVERIFIED |
| CCCarder Concrete Plt No 2 | Arvada | CO | — | ◇ UNVERIFIED |
| CCCarder Concrete Products CO | Littleton | CO | — | ◇ UNVERIFIED |
| CCCaribbean Cast Stone INC | Toa Alta | PR | — | ◇ UNVERIFIED |
| CSCarib Sea | Fort Pierce | FL | — | ◇ UNVERIFIED |
| CICar INC | Grand Rapids | MN | — | ◇ UNVERIFIED |
| CACarl Aguirre | Palos Verdes Estates | CA | — | ◇ UNVERIFIED |
