| CMCalaveras Materials INC. | Hughson | — | ◇ UNVERIFIED |
| COCaldo Oil Company C/o Weiss As | San Jose | — | ◇ UNVERIFIED |
| CCCalifornia Commercial Asphalt LLC | San Marcos | — | ◇ UNVERIFIED |
| CCCalifornia Commercial Asphalt LLC | San Diego | — | ◇ UNVERIFIED |
| CCCalifornia Commercial Asphalt LLC | San Diego | — | ◇ UNVERIFIED |
| CCCalifornia Commercial Asphalt, LLC | Lake Elsinore | — | ◇ UNVERIFIED |
| CDCalifornia Diesel | Temecula | — | ◇ UNVERIFIED |
| CPCalifornia Pavement Maintenance Company INC | Rancho Cordova | — | ◇ UNVERIFIED |
| CPCalifornia Paving and Grading CO INC | Los Angeles | — | ◇ UNVERIFIED |
| CRCalifornia Rock & Asphalt INC | Brisbane | — | ◇ UNVERIFIED |
| CTCalifornia Transmission Products | Santa Ana | — | ◇ UNVERIFIED |
| C2Calmat - 20181 Nat'l Trails | Oro Grande | — | ◇ UNVERIFIED |
| CCCalmat CO | Los Angeles | — | ◇ UNVERIFIED |
| CCCalmat CO | Irwindale | — | ◇ UNVERIFIED |
| CCCalmat CO | Los Angeles | — | ◇ UNVERIFIED |
| CCCalmat CO | El Toro | — | ◇ UNVERIFIED |
| CCCalmat CO | San Bernardino | — | ◇ UNVERIFIED |
| CCCalmat CO | Montclair | — | ◇ UNVERIFIED |
| CCCalmat CO | Santa Ana | — | ◇ UNVERIFIED |
| CCCalmat CO | Corona | — | ◇ UNVERIFIED |
| CCCalmat CO. | Friant | — | ◇ UNVERIFIED |
| CCCalmat Co/dba Vulcan Materials CO | Mettler | — | ◇ UNVERIFIED |
| CCCalmat CO. Dba Vulcan Materials Company | Oxnard | — | ◇ UNVERIFIED |
| CCCalmat CO Dba Vulcan Materials CO Otay Asphalt Plant | San Diego | — | ◇ UNVERIFIED |
| CCCalmat Company | Irwindale | — | ◇ UNVERIFIED |
| CCCalmat Company | Simi Valley | — | ◇ UNVERIFIED |
| CCCalmat Company | Sun Valley | — | ◇ UNVERIFIED |
| CCCalmat Company | Pleasanton | — | ◇ UNVERIFIED |
| CICalmat- Industrial Asphalt | Bakersfield | — | ◇ UNVERIFIED |
| COCalmat of Fresno | Fresno | — | ◇ UNVERIFIED |
| CSCal-mesa Steel Supply, INC. | Escondido | — | ◇ UNVERIFIED |
 Calportland Construction | Paso Robles | — | ◇ UNVERIFIED |
| CCaltrans | Santa Fe Springs | — | ◇ UNVERIFIED |
| CCaltrans | Visalia | — | ◇ UNVERIFIED |
| CDCaltrans District 7 Construction | Santa Fe Springs | — | ◇ UNVERIFIED |
| CCCalvary Chapel of Downey | Downey | — | ◇ UNVERIFIED |
| CTCamacho Tires | Selma | — | ◇ UNVERIFIED |
| CCCanadian Chemical Reclaim Technologies | Martinez | — | ◇ UNVERIFIED |
| CJCaptain John Dulamge | Manhattan Beach | — | ◇ UNVERIFIED |
| CGCarlsbad Gas and Car Wash, INC. | Carlsbad | — | ◇ UNVERIFIED |
| CCCarone & Company, INC. Dba Diablo Valley Rock | Martinez | — | ◇ UNVERIFIED |
| CICastrol INC | Los Angeles | — | ◇ UNVERIFIED |
| CICastrol Industrial North Ameri | Hawthorne | — | ◇ UNVERIFIED |
| CLCca Llc/lakeside | Lakeside | — | ◇ UNVERIFIED |
| CCC & C Transportation | Bakersfield | — | ◇ UNVERIFIED |
| CCCemex Construction Materials Pacific LLC | Pleasanton | — | ◇ UNVERIFIED |
| COCenco Oil | Santa Fe Springs | — | ◇ UNVERIFIED |
| CACentennial Asphalt Company | Bakersfield | — | ◇ UNVERIFIED |
| COCenterline Oil Spreading | Anaheim | — | ◇ UNVERIFIED |
| CCCentral Concrete Supply, INC | Walnut Creek | — | ◇ UNVERIFIED |
