| RPReliable Powder Coatings LLC | San Leandro | — | ◇ UNVERIFIED |
| RPRg Plating & Anodizing LLC | Livermore | — | ◇ UNVERIFIED |
| RCRj Chase Company INC | Union City | — | ◇ UNVERIFIED |
| RJR & J Ornamental Iron Works | Oakland | — | ◇ UNVERIFIED |
| RHRobert Hegdahl | Hayward | — | ◇ UNVERIFIED |
| RERosa Ella Belmonte Dba Coliseum Sandblasting | Oakland | — | ◇ UNVERIFIED |
| RMRS&E Management, LLC | Union City | — | ◇ UNVERIFIED |
| RSR & S Erection | Hayward | — | ◇ UNVERIFIED |
| RSR & S Manufacturing INC | Union City | — | ◇ UNVERIFIED |
| RIRunnels Industries INC | Hayward | — | ◇ UNVERIFIED |
| RGRussell Gates | Emeryville | — | ◇ UNVERIFIED |
| RMRW Metal Spinning Inc | San Leandro | — | ◇ UNVERIFIED |
| SCSanmina CORP | Newark | — | ◇ UNVERIFIED |
| SCSanmina Corporation | Fremont | — | ◇ UNVERIFIED |
| SSSanmina - Sci | Newark | — | ◇ UNVERIFIED |
| SSSanmina - Sci | Livermore | — | ◇ UNVERIFIED |
| SLSb3h5 LLC | Hayward | — | ◇ UNVERIFIED |
| STScotia Tool and Machine INC. | San Leandro | — | ◇ UNVERIFIED |
| SCSerra Corporation | Hayward | — | ◇ UNVERIFIED |
| SCShaklee CORP | Pleasanton | — | ◇ UNVERIFIED |
| SCSilgan Containers Manufacturin | San Leandro | — | ◇ UNVERIFIED |
| SVSj Valley Plating INC Dba Farben | Hayward | — | ◇ UNVERIFIED |
| SCSmi Construction, INC. | San Leandro | — | ◇ UNVERIFIED |
| SBSouth Bay Soda Systems INC. | San Leandro | — | ◇ UNVERIFIED |
| SPSpectrum Powder Coat & Paint | Hayward | — | ◇ UNVERIFIED |
 Steelhead Metal Works | Newark | — | ◇ UNVERIFIED |
| SPStockton Products | Livermore | — | ◇ UNVERIFIED |
| SEStorage Express INC | Fremont | — | ◇ UNVERIFIED |
| SWStud Welding Products INC | Hayward | — | ◇ UNVERIFIED |
| SSSunbelt Supply | Livermore | — | ◇ UNVERIFIED |
| SISunchem INC | Berkeley | — | ◇ UNVERIFIED |
| SSSunrise Specialty Company | Oakland | — | ◇ UNVERIFIED |
| SNSupply Network INC Dba Viking Supplynet & Fabrication Services | Hayward | — | ◇ UNVERIFIED |
| TATeikuro America Company LTD | Hayward | — | ◇ UNVERIFIED |
| TEThe Ed. Jones Company | Berkeley | — | ◇ UNVERIFIED |
| TEThe Energy Store of California, INC. | Hayward | — | ◇ UNVERIFIED |
| TMThermionics Metal Processing INC | Hayward | — | ◇ UNVERIFIED |
| TTmpi | Hayward | — | ◇ UNVERIFIED |
| TDTop Dawg Modular Service | Fremont | — | ◇ UNVERIFIED |
| TTTranscend Technology Headquaters | Fremont | — | ◇ UNVERIFIED |
| TMTrifecta Manufacturing LLC | Livermore | — | ◇ UNVERIFIED |
| TTTrue Tech Corporation | Fremont | — | ◇ UNVERIFIED |
| TDT.t.i. Dba Clearflow Valve | Berkeley | — | ◇ UNVERIFIED |
| UIUni-fab Industries INC | Fremont | — | ◇ UNVERIFIED |
| ULUniformity Labs | Hayward | — | ◇ UNVERIFIED |
| UMUnited Mechanical & Metal Fabricators, Inc. | Union City | — | ◇ UNVERIFIED |
| UMUnited Misc & Ornamental Steel INC Dba Umo Steel INC | Union City | — | ◇ UNVERIFIED |
| UMUnited Misc. & Ornamental Steel, Inc. | Union City | — | ◇ UNVERIFIED |
| USUnited Steel Products Company, INC. | Livermore | — | ◇ UNVERIFIED |
| UIUniversal Industrial Finishing | Fremont | — | ◇ UNVERIFIED |
