| AAAll American Asphalt | San Fernando | — | ◇ UNVERIFIED |
| AAAll American Asphalt,all Amer Aggregates | Irvine | — | ◇ UNVERIFIED |
| BCBaldwin Contracting (road 7) | Orland | — | ◇ UNVERIFIED |
| BCBaldwin Contraction CO. | Lincoln | — | ◇ UNVERIFIED |
| BCBasf Construction Chemicals, INC. | Newark | — | ◇ UNVERIFIED |
| BGBaxman Gravel CO | Fort Bragg | — | ◇ UNVERIFIED |
| BRBerkeley Ready Mix Concrete | Berkeley | — | ◇ UNVERIFIED |
| BCBlue Coral INC Mckay Chemical | Los Angeles | — | ◇ UNVERIFIED |
| BDBlue Diamond Materials | Sun Valley | — | ◇ UNVERIFIED |
| BDBlue Diamond Materials - South Gate Facility | South Gate | — | ◇ UNVERIFIED |
| CCCalmat CO Fresno | Fresno | — | ◇ UNVERIFIED |
| COCalmat of Central California | Bakersfield | — | ◇ UNVERIFIED |
 Calportland Construction - Templeton | Paso Robles | — | ◇ UNVERIFIED |
| CICastrol Industrial | Los Angeles | — | ◇ UNVERIFIED |
| CRChemoil Refining CORP | Signal Hill | — | ◇ UNVERIFIED |
| CICrafco INC | Fontana | — | ◇ UNVERIFIED |
| CRCrimson Renewable Energy, LP | Bakersfield | — | ◇ UNVERIFIED |
| CTCustom Tube & Manufacturing | Paso Robles | — | ◇ UNVERIFIED |
| DDDavid Downs Company | Cudahy | — | ◇ UNVERIFIED |
| DADiversified Asphalt Products, INC | Anaheim | — | ◇ UNVERIFIED |
| EMEdgars Mobile Lube | Oakland | — | ◇ UNVERIFIED |
| EOEdgington Oil CO | Long Beach | — | ◇ UNVERIFIED |
| EWEnviropur West CORP | Signal Hill | — | ◇ UNVERIFIED |
| FQFelton Quarry | Felton | — | ◇ UNVERIFIED |
| FOFletcher Oil & Refining CO (forco) Carson Refinery | Carson | — | ◇ UNVERIFIED |
| FSFour Star Chem INC | Los Angeles | — | ◇ UNVERIFIED |
| GRGeorge Reed INC | Jamestown | — | ◇ UNVERIFIED |
| GGGolden Gate Petroleum | San Jose | — | ◇ UNVERIFIED |
| GCGranite Construction CO | Tracy | — | ◇ UNVERIFIED |
| GCGranite Construction Ventura Plant | Santa Paula | — | ◇ UNVERIFIED |
| GCGriffith CO | Lebec | — | ◇ UNVERIFIED |
| HAHanson Aggregates Mid-pacific INC | Santa Maria | — | ◇ UNVERIFIED |
| HAHanson Aggregates Pacific Southwest INC | Carlsbad | — | ◇ UNVERIFIED |
| JMJohns Manville | South Gate | — | ◇ UNVERIFIED |
| KPKiewit Pacific Company | Bakersfield | — | ◇ UNVERIFIED |
| LPLiquid Packaging CO | Paramount | — | ◇ UNVERIFIED |
| LALos Angeles City Street Maintenance Ap#2 | North Hollywood | — | ◇ UNVERIFIED |
| MPMaxum Petroleum | Rancho Dominguez | — | ◇ UNVERIFIED |
| M1Mckittrick 17z Gas Plant | Mc Kittrick | — | ◇ UNVERIFIED |
| MMMortech Mfg | Azusa | — | ◇ UNVERIFIED |
| MPMunn & Perkins | Escalon | — | ◇ UNVERIFIED |
| NANorthstate Asphalt | Redding | — | ◇ UNVERIFIED |
| OCOceanside City of Water Utilities Dept/slrwwtp | Oceanside | — | ◇ UNVERIFIED |
| PPPacific Precision Formulators INC | Vernon | — | ◇ UNVERIFIED |
| PRPeninsula Road Materials | Redwood City | — | ◇ UNVERIFIED |
| PHPrime Heat INC | El Cajon | — | ◇ UNVERIFIED |
| QCQuality Car Care Products INC | Duarte | — | ◇ UNVERIFIED |
| RLRed Line Synthetic Oil CORP. | Benicia | — | ◇ UNVERIFIED |
| RORosemead Oil Products INC | Santa Fe Springs | — | ◇ UNVERIFIED |
| SLSan Luis Rey Wastewater Treatment Plant | Oceanside | — | ◇ UNVERIFIED |
