| ASAluminum Seating INC. | Riverside | 1–19 | ◇ UNVERIFIED |
| AWAluminum Welding Services | Fullerton | 1–19 | ◇ UNVERIFIED |
| AAAmerican Alupack Industries LLC | Oxnard | — | ◇ UNVERIFIED |
| ADAmerican Die Casting | Fontana | — | ◇ UNVERIFIED |
| BIBrothers Ironworks Co, Sarkis Tatarian | Burbank | 1–19 | ◇ UNVERIFIED |
| BEBrunton Enterprises Inc,plas Tal Mfg CO | Santa Fe Springs | 100–499 | ◇ UNVERIFIED |
| BDBull Dog Machine , INC | Vallejo | — | ◇ UNVERIFIED |
| CCCalifornia Casting | Richmond | 1–19 | ◇ UNVERIFIED |
| CECalifornia Electric Steel | Angels Camp | 20–99 | ◇ UNVERIFIED |
| CMCamco Machine INC | Fontana | 1–19 | ◇ UNVERIFIED |
| EMElectrolurgy Manufacturing, INC. | Santa Ana | 100–499 | ◇ UNVERIFIED |
| EIElpro, INC. | Grover Beach | 1–19 | ◇ UNVERIFIED |
| GHGarner Holt Productions | San Bernardino | — | ◇ UNVERIFIED |
| GFGerlinger Foundry and Machine Works INC | Woodland | — | ◇ UNVERIFIED |
| GCGsi Capital Partners LLC | San Marcos | 1–19 | ◇ UNVERIFIED |
| HIHamrock INC | Santa Fe Springs | — | ◇ UNVERIFIED |
| HIHartman Industries Dba Commercial Casting Company | Fontana | 20–99 | ◇ UNVERIFIED |
| JCJerry Carroll Machining INC Dba Electrocut-pacific | San Carlos | 1–19 | ◇ UNVERIFIED |
| JJoseff-hollywood | Burbank | 1–19 | ◇ UNVERIFIED |
| KPKens Paradise Hitch & Welding | Paradise | 1–19 | ◇ UNVERIFIED |
| KPK P Iron Foundry INC | Fresno | 1–19 | ◇ UNVERIFIED |
| LALos Angeles Pump & Valve | Huntington Park | — | ◇ UNVERIFIED |
| MIMasters in Metal, Inc | Oxnard | 1–19 | ◇ UNVERIFIED |
| MBMontclair Bronze INC | Montclair | 1–19 | ◇ UNVERIFIED |
| MIMtm Industrial | Oceanside | 1–19 | ◇ UNVERIFIED |
| MAMzd Acquisitions INC Dba Moz Designs INC | Oakland | 20–99 | ◇ UNVERIFIED |
| NTNvent Thermal LLC | Redwood City | — | ◇ UNVERIFIED |
| QIQuemetco INC | City of Industry | — | ◇ UNVERIFIED |
| RMReed Manufacturing INC Dba American Casting CO | Hollister | 20–99 | ◇ UNVERIFIED |
| RMResearch Metal Industries INC | Gardena | 20–99 | ◇ UNVERIFIED |
| STStreuter Technologies INC | San Clemente | 1–19 | ◇ UNVERIFIED |
| TBThe Bronzery, Inc. | Escondido | 1–19 | ◇ UNVERIFIED |
| THThe Hrem INC | Fontana | 1–19 | ◇ UNVERIFIED |
| TITubeworks INC. | Riverside | — | ◇ UNVERIFIED |
| UPUS Pole Company | Palmdale | 100–499 | ◇ UNVERIFIED |
| VPViking Processing CORP | Pittsburg | 1–19 | ◇ UNVERIFIED |
| WFWestern Fabrication Tech CORP | Valencia | — | ◇ UNVERIFIED |
| GMGayle Manufacturing CO INC | Woodland | — | ▲ REPORTED CLOSED |
| IDIsi Detention Contracting Group INC. | Orange | — | ▲ REPORTED CLOSED |
| PSPacific Steel Casting Company | Berkeley | — | ▲ REPORTED CLOSED |
| QFQuantum Fuel Systems Technologies INC | Lake Forest | — | ▲ REPORTED CLOSED |
| TCThe Carlstar Group LLC | Ontario | — | ▲ REPORTED CLOSED |
| TITree Island Wire | Rancho Cucamonga | — | ▲ REPORTED CLOSED |
