| 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 |
| HMHerbert Malarkey Roofing CO. | South Gate | — | ◇ UNVERIFIED |
| HRHolliday Rock CO INC | Littlerock | — | ◇ UNVERIFIED |
| HRHolliday Rock Co., INC. | Rialto | — | ◇ UNVERIFIED |
| HIHusk Itt Corporation | Norco | — | ◇ UNVERIFIED |
| JMJohns Manville | South Gate | — | ◇ UNVERIFIED |
| KPKiewit Pacific Company | Bakersfield | — | ◇ UNVERIFIED |
| LPLas Palmas Oil & Dehydration (sabre Oil) | 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 | Mckittrick | — | ◇ UNVERIFIED |
| MAMiramar Asphalt | San Diego | — | ◇ 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 |
| PSPennzoil-quaker State CO (dba Sopus Products Lalp) | Wilmington | — | ◇ UNVERIFIED |
| PQPennzoil Quaker-state CO. Sopus Products | Tehachapi | — | ◇ UNVERIFIED |
| PHPrime Heat INC | El Cajon | — | ◇ UNVERIFIED |
| QCQuality Car Care Products INC | Duarte | — | ◇ UNVERIFIED |
| QPQuikrete - Porterville, Ca Plant | Porterville | — | ◇ UNVERIFIED |
| RLRed Line Synthetic Oil CORP. | Benicia | — | ◇ UNVERIFIED |
| RORosemead Oil Products INC | Santa Fe Springs | — | ◇ UNVERIFIED |
| SLSan Luis Rey Wastewater Treatment Plant | Oceanside | — | ◇ UNVERIFIED |
| SPSan Pablo Bay Pipeline Company LLC | Tracy | — | ◇ UNVERIFIED |
| SFSanta Fe Aggregates, INC. | Waterford | — | ◇ UNVERIFIED |
| SFSanta Fe Materials, Winton Plant | Winton | — | ◇ UNVERIFIED |
| SFSanta Fe Springs Refinery | Santa Fe Springs | — | ◇ UNVERIFIED |
| SISchroeder Iron Corporation | Fontana | — | ◇ UNVERIFIED |
| SLSemmaterials L.p. | Fontana | — | ◇ UNVERIFIED |
| SSShea Sand & Gravel {jfs-sr} | Redding | — | ◇ UNVERIFIED |
| SSoledad | Canyon Country | — | ◇ UNVERIFIED |
| SISta-lube INC | Compton | — | ◇ UNVERIFIED |
| SRSunland Refining | Bakersfield | — | ◇ UNVERIFIED |
| SISyar Industries, INC Healdsburg Quarry | Healdsburg | — | ◇ UNVERIFIED |
| TATeichert Aggregates | Tracy | — | ◇ UNVERIFIED |
| TATeichert Aggregates Grantline | Rancho Cordova | — | ◇ UNVERIFIED |
| TATeichert Aggregates Martis | Truckee | — | ◇ UNVERIFIED |
| TIThe International Group INC | Richmond | — | ◇ UNVERIFIED |
| TOTidelands Oil Production Company Etal | Long Beach | — | ◇ UNVERIFIED |
| TRTricor Refining LLC | Bakersfield | — | ◇ UNVERIFIED |
| TRTropical Roofing Products INC C/o Soprema INC | La Mirada | — | ◇ UNVERIFIED |
| TETruck Equipment Fabrication | Santa Clarita | — | ◇ UNVERIFIED |
| VCValvoline Company | Sant Fe Springs | — | ◇ UNVERIFIED |
