Ceramic Tech, INC. | Fremont | 20–99 | ● ACTIVE |
Morgan Advanced Ceramics, INC. | Hayward | 100–499 | ● ACTIVE |
Admail-express, INC | Hayward | — | ● ACTIVE |
Applied Ceramics, INC. | Fremont | — | ● ACTIVE |
Adams & Chittenden Scientific Glass Cooperative CORP. | Berkeley | — | ● ACTIVE |
C-crete Technologies LLC | San Leandro | — | ● ACTIVE |
Prairie Ceramics Corporation | San Leandro | — | ● ACTIVE |
| OPOldcastle Precast (pleasanton) | Pleasanton | — | ◇ UNVERIFIED |
| DFDiamond Foundry LLC Warm Springs | Fremont | 20–99 | ◐ LIKELY ACTIVE |
| HQHayward Quartz Technology INC | Fremont | 100–499 | ◐ LIKELY ACTIVE |
| OBOldcastle Building Envelope | Fremont | 100–499 | ◐ LIKELY ACTIVE |
| PGPABCO Gypsum - Newark | Newark | 20–99 | ◐ LIKELY ACTIVE |
| SQSFO Quikrete | Fremont | 20–99 | ◐ LIKELY ACTIVE |
| UCUnion City | Union City | 20–99 | ◐ LIKELY ACTIVE |
| KCKelly's Concrete & Building Materials INC | Fremont | — | ◐ LIKELY ACTIVE |
| WWWalters Wolf Precast | Fremont | — | ◐ LIKELY ACTIVE |
| ACAdams & Chittenden Scientific Glass Coop | Berkeley | — | ◇ UNVERIFIED |
| BRBerkeley Ready Mix Concrete | Berkeley | — | ◇ UNVERIFIED |
| CCCemex Construction Materials Pacific LLC - Union City Plant | Union City | — | ◇ UNVERIFIED |
| COCemex Oakland | Oakland | — | ◇ UNVERIFIED |
| CPCemex Pleasanton | Pleasanton | — | ◇ UNVERIFIED |
| CPCemex Pleasanton Ready-mix | Pleasanton | — | ◇ UNVERIFIED |
| CCCentral Concrete Supply - a US Concrete Company | Hayward | — | ◇ UNVERIFIED |
| FNFlorence & New Italian Art Company | Hayward | — | ◇ UNVERIFIED |
| HCHoya Corporation USA | Fremont | — | ◇ UNVERIFIED |
| JIJifco INC | Livermore | — | ◇ UNVERIFIED |
| NRNor-cal Rock INC | Hayward | — | ◇ UNVERIFIED |
| 1B1500 Building | Fremont | 20–99 | ◐ LIKELY ACTIVE |
| 4B4010 Business Center Drive | Fremont | 1–19 | ◐ LIKELY ACTIVE |
| BCBrimstone Commercial, LLC | Oakland | — | ◐ LIKELY ACTIVE |
| BEBrimstone Energy, INC. | Oakland | — | ◐ LIKELY ACTIVE |
| BGBullseye Glass Company - Resource Center - BA | Alameda | 1–19 | ◐ LIKELY ACTIVE |
| CLCalifornia Livermore Lindbergh Ave | Livermore | 1–19 | ◐ LIKELY ACTIVE |
| PPProcast Products North LLC | Sunol | 1–19 | ◐ LIKELY ACTIVE |
| PCPS California Hayward 1664 Delta Court | Hayward | 1–19 | ◐ LIKELY ACTIVE |
| PCPS California Union City 1765 Atlantic Street | Union City | 1–19 | ◐ LIKELY ACTIVE |
| SSfodip | Union City | 100–499 | ◐ LIKELY ACTIVE |
| ARA-1 Ready Mix Inc | Hayward | — | ◇ UNVERIFIED |
| ACApplied Ceramics INC | Fremont | — | ◇ UNVERIFIED |
| AMArch Mirror West | Newark | — | ◇ UNVERIFIED |
| ASArtistic Stone Kitchen & Bath, INC. | San Leandro | — | ◇ UNVERIFIED |
| BMBay Marble | Newark | — | ◇ UNVERIFIED |
| BSBerkeley Screen Print | Berkeley | — | ◇ UNVERIFIED |
| BMBracho Marble | Newark | — | ◇ UNVERIFIED |
| BNBradley Nameplate Corporation | Fremont | — | ◇ UNVERIFIED |
| CGCalifornia Glass Industries, LLC | Union City | — | ◇ UNVERIFIED |
| CCCell-crete CORP | Hayward | — | ◇ UNVERIFIED |
| CCemex | Oakland | — | ◇ UNVERIFIED |
| CCCemex Construction Materials P | Pleasanton | — | ◇ UNVERIFIED |
| CCCemex Construction Materials Pac Fic LLC | Berkeley | — | ◇ UNVERIFIED |