| CCCemex Construction Materials Pacific LLC - Union City Plant | Union City | — | ◐ LIKELY ACTIVE |
| CCCemex Construction Materials Perkins Rm Teichert | Sacramento | — | ◐ LIKELY ACTIVE |
| CFCemex Fresno Plant | Fresno | — | ◐ LIKELY ACTIVE |
| CICemex Irvine Plant | Irvine | — | ◐ LIKELY ACTIVE |
| CMCemex Mission Valley Plant | San Diego | — | ◐ LIKELY ACTIVE |
| COCemex Oakland | Oakland | — | ◐ LIKELY ACTIVE |
| CPCemex Pleasanton Ready-mix | Pleasanton | — | ◐ LIKELY ACTIVE |
| CSCemex Santa Barbara Plant | Santa Barbara | — | ◐ LIKELY ACTIVE |
| CCCentral Concrete Supply | San Jose | — | ◐ LIKELY ACTIVE |
| CVChristy Vault Company INC | Colma | 1–19 | ◐ LIKELY ACTIVE |
| CIConcrete INC | Stockton | — | ◐ LIKELY ACTIVE |
| FRFolsom Ready Mix INC Plant 1 | Rancho Cordova | — | ◐ LIKELY ACTIVE |
| GGGeorgia-pacific Gypsum LLC | Antioch | — | ◐ LIKELY ACTIVE |
| GLGlasswerks La INC | South Gate | 500+ | ◐ LIKELY ACTIVE |
| GBGold Bond Building Products LLC | Richmond | — | ◐ LIKELY ACTIVE |
| GEGolden Empire Concrete Products | Bakersfield | 20–99 | ◐ LIKELY ACTIVE |
| GRGranite Rock Company Salinas Concrete | Salinas | — | ◐ LIKELY ACTIVE |
| GIGuardian Industries CORP. | Kingsburg | — | ◐ LIKELY ACTIVE |
| HAHanson Aggregates Pacific Southwest | Escondido | — | ◐ LIKELY ACTIVE |
| HPHilfiker Pipe Company | Eureka | 20–99 | ◐ LIKELY ACTIVE |
| HRHolliday Rock - Adelanto | Adelanto | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock Bakersfield 2 | Bakersfield | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock Co., INC | Upland | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock Co., INC. | Bakersfield | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock Co., INC. | Rialto | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock Company - Mountain View | Upland | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock - Irvine | Irvine | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock - Irwindale | Baldwin Park | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock - San Bernardino Facility | San Bernardino | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock Santa Ana 25 | Santa Ana | — | ◐ LIKELY ACTIVE |
| JPJensen Precast | Fontana | — | ◐ LIKELY ACTIVE |
| JPJensen Precast | Lockeford | — | ◐ LIKELY ACTIVE |
| KPKing Precision Glass INC | Claremont | 1–19 | ◐ LIKELY ACTIVE |
| LNLhoist North America | Salinas | — | ◐ LIKELY ACTIVE |
| LCLivingston's Concrete Service INC | Olivehurst | — | ◐ LIKELY ACTIVE |
| LALos Angeles Plant 15 | Los Angeles | — | ◐ LIKELY ACTIVE |
| MIMc Intyre Tile CO INC | Healdsburg | 20–99 | ◐ LIKELY ACTIVE |
| MUMicronized Ultra Tech INC | Richmond | 1–19 | ◐ LIKELY ACTIVE |
| MPMiramar Plant 33 | San Diego | — | ◐ LIKELY ACTIVE |
| MRMission Ready Mix - Goleta | Goleta | — | ◐ LIKELY ACTIVE |
| NRNational Ready Mix Concrete | Van Nuys | — | ◐ LIKELY ACTIVE |
| NRNational Ready Mix Concrete CO | Irvine | — | ◐ LIKELY ACTIVE |
| NRNational Ready Mix Concrete CO | Santa Clarita | — | ◐ LIKELY ACTIVE |
| NRNational Ready Mix Concrete CO. | Los Angeles | — | ◐ LIKELY ACTIVE |
| NRNational Ready Mixed Concrete CO | Artesia | — | ◐ LIKELY ACTIVE |
| NRNational Ready Mixed Concrete CO | Canoga Park | — | ◐ LIKELY ACTIVE |
| NRNational Ready Mixed Concrete CO | Irwindale | — | ◐ LIKELY ACTIVE |
| NRNorthgate Ready Mix | Windsor | — | ◐ LIKELY ACTIVE |
| OIO'keeffe's INC. | Merced | — | ◐ LIKELY ACTIVE |
| OOldcastle | Morgan Hill | — | ◐ LIKELY ACTIVE |