| CCC2 California Anaheim 1341 Blue Gum Street | Anaheim | 1–19 | ◐ LIKELY ACTIVE |
| CCC2 California Placentia 330 West Crowther Avenue | Placentia | 1–19 | ◐ LIKELY ACTIVE |
| CACA015 Antioch Gypsum | Antioch | 100–499 | ◐ LIKELY ACTIVE |
| CCCalifornia City Plant #46 | California City | 1–19 | ◐ LIKELY ACTIVE |
| CCCalifornia Corona 391 N Main Street | Corona | 1–19 | ◐ LIKELY ACTIVE |
| CCCalifornia Corona 507 Queensland Circle | Corona | 1–19 | ◐ LIKELY ACTIVE |
| CFCalifornia Fresno 2861 E Dorothy Ave | Fresno | 1–19 | ◐ LIKELY ACTIVE |
| CGCalifornia Gilroy 8155 Swanston Lane | Gilroy | 20–99 | ◐ LIKELY ACTIVE |
| CICalifornia Irvine 4 Jenner Street | Irvine | 1–19 | ◐ LIKELY ACTIVE |
| CICalifornia Irvine 75 Doppler | Irvine | 1–19 | ◐ LIKELY ACTIVE |
| CLCalifornia La Mirada 14600 Alondra Blvd | La Mirada | 20–99 | ◐ LIKELY ACTIVE |
| CLCalifornia Lathrop Christopher Way | Lathrop | 20–99 | ◐ LIKELY ACTIVE |
| CLCalifornia Livermore Lindbergh Ave | Livermore | 1–19 | ◐ LIKELY ACTIVE |
| CMCalifornia Manteca 1300 Dupont Court | Manteca | 1–19 | ◐ LIKELY ACTIVE |
| CMCalifornia Monterey 2110B Del Monte Avenue | Monterey | 20–99 | ◐ LIKELY ACTIVE |
| CPCalifornia Palm Desert 39740 Garrand Lane | Palm Desert | 1–19 | ◐ LIKELY ACTIVE |
| CRCalifornia Roseville 1532 Eureka Road | Roseville | 1–19 | ◐ LIKELY ACTIVE |
| CRCalifornia Roseville 201 Creekside Ridge Court | Roseville | 1–19 | ◐ LIKELY ACTIVE |
| CSCalifornia Sacramento 3701 Pell Circle | Sacramento | 20–99 | ◐ LIKELY ACTIVE |
| CSCalifornia Sacramento 4170 Truxel Road | Sacramento | 1–19 | ◐ LIKELY ACTIVE |
| CSCalifornia San Diego 15822 Bernardo Center Drive | San Diego | 20–99 | ◐ LIKELY ACTIVE |
| CSCalifornia San Diego Trade Place | San Diego | 1–19 | ◐ LIKELY ACTIVE |
| CTCalifornia Temecula 42006 Remington Avenue | Temecula | 1–19 | ◐ LIKELY ACTIVE |
| CVCalifornia Valencia 27229 Turnberry Lane | Valencia | 1–19 | ◐ LIKELY ACTIVE |
| CWCalifornia Westlake Village Townsgate Road | Westlake Village | 1–19 | ◐ LIKELY ACTIVE |
| CWCalifornia West Sacramento 2921 Ramco Street | West Sacramento | 20–99 | ◐ LIKELY ACTIVE |
| CCCalPortland Cement Terminal | Santa Fe Springs | 1–19 | ◐ LIKELY ACTIVE |
Calportland Construction - Ready Mix Division | Santa Maria | 20–99 | ◐ LIKELY ACTIVE |
| CGCalPortland Gem Hill Mine Site | Rosamond | 1–19 | ◐ LIKELY ACTIVE |
| CSCambria Sales and Distrbution Center Las Angeles | Santa Fe Springs | 20–99 | ◐ LIKELY ACTIVE |
| CMCanam Minerals INC | Rancho Cucamonga | — | ▲ REPORTED CLOSED |
| CCCBPQ Custom Building Products | Santa Fe Springs | 20–99 | ◐ LIKELY ACTIVE |
| CCCell Crete Corporation | Monrovia | 20–99 | ◐ LIKELY ACTIVE |
| CVCentral Valley Administration | Fresno | 1–19 | ◐ LIKELY ACTIVE |
| CPClark Pacific - Woodland | Woodland | 100–499 | ◐ LIKELY ACTIVE |
| CIConcrete Inc DBA Knife River | Stockton | 20–99 | ◐ LIKELY ACTIVE |
| CUCox, USA | Ontario | 20–99 | ◐ LIKELY ACTIVE |
| DFDaly Fabrication Facility | Anaheim | 1–19 | ◐ LIKELY ACTIVE |
| DCDixon CT | Dixon | 20–99 | ◐ LIKELY ACTIVE |
| EREscondido Ready Mix | Escondido | 1–19 | ◐ LIKELY ACTIVE |
| EMEZ Mix Inc - Rialto | Bloomington | 20–99 | ◐ LIKELY ACTIVE |
| EMEZ Mix Inc - Tuxford | Sun Valley | 20–99 | ◐ LIKELY ACTIVE |
| FCFlorentine Company | San Diego | 20–99 | ◐ LIKELY ACTIVE |
| FPFontana Plant #4 | Fontana | 1–19 | ◐ LIKELY ACTIVE |
| GCGalt CG | Galt | 100–499 | ◐ LIKELY ACTIVE |
| GMGardena (Adcock Mfg Corp) | Gardena | 1–19 | ◐ LIKELY ACTIVE |
| GPGardena Plant #25 | Gardena | 20–99 | ◐ LIKELY ACTIVE |
| GCGilwin Company | Modesto | 20–99 | ◐ LIKELY ACTIVE |
| GTGlassfab Tempering Services, Inc. | Tracy | 20–99 | ◐ LIKELY ACTIVE |
| GTGlassfab Tempering Services, Inc. | Tracy | 100–499 | ◐ LIKELY ACTIVE |