| CDCalifornia Die Casting INC | Ontario | CA | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
California Fine Wire CO. | Grover Beach | CA | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| DWDavis Wire CORP | Irwindale | CA | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| EREcobat Resources California INC | City of Industry | CA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| KAKasier Aluminum Fabricted Products LLC | Los Angeles | CA | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
Lex Products, LLC | Pacoima | CA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| NUNew United Motor Manufacturing | Fremont | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| PCPressure Cast Products Corporation | Oakland | CA | Primary Metal Manufacturing331521 | 1-19 | ◐ LIKELY ACTIVE |
Skyline Steel LLC. - Geo Pomona | Pomona | CA | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
Sp Manufacturing INC | Livermore | CA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| SWSumiden Wire Products | Stockton | CA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| TGThompson Gundrilling INC | Van Nuys | CA | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| WVWaterman Valve, LLC | Exeter | CA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| AIArcadia INC | Vernon | CA | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| AMArdagh Metal Packaging | Fairfield | CA | Primary Metal Manufacturing331315 | — | ◐ LIKELY ACTIVE |
| KTK Tube Corporation | Poway | CA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| LMLight Metals INC | City of Industry | CA | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |
| NSNatl Steel & Shipbuilding a General Dynamics CO | San Diego | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TETyco Electronics CORP | Redwood City | CA | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| BTBrass Tech INC | Santa Ana | CA | Primary Metal Manufacturing331529 | — | ◇ UNVERIFIED |
| CRCast Rite CORP | Gardena | CA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| CPCitation Precision | Rancho Cucamonga | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| FPFs Precision Tech | Compton | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| HPHeraeus Precious Metals NA LLC | Santa Fe Springs | CA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| NSNet Shapes, INC. | Ontario | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| OCOkonite Company Plant Number 5 | Santa Maria | CA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| PFPac Foundries - Industry | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| SASierra Aluminum CO | Riverside | CA | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| TSThe Strelitz CO INC - California Metal X | Los Angeles | CA | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| VIVest INC | Los Angeles | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MSMetal-fab Services Industry, INC | Anaheim | CA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| MMMil-spec Magnetics, INC | Covina | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SDSuperior Duct Fabrication | Pomona | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| APAdvanced Precision, INC. | Chino | CA | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| ARAll-met Recycling INC | Anaheim | CA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| AIAmbrit Industries | Glendale | CA | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| ACAmerican Casting Company | Hollister | CA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| ASAnvil Steel | Gardena | CA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| AMArtsons Manufacturing Company, Inc. | South Gate | CA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| BTBenda Tool & Model Works INC | Hercules | CA | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| CSCalifornia Steel and Tube | City of Industry | CA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CSCalifornia Steel Industries | Fontana | CA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CLCr Laurence | Los Angeles | CA | Textile Mills313310 | 100-499 | ◐ LIKELY ACTIVE |
| DIDavison Iron Works INC | Sacramento | CA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| DIDynacast, INC. | Lake Forest | CA | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| FMForged Metals INC | Fontana | CA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| FVFresno Valves & Casting, INC. | Selma | CA | Primary Metal Manufacturing331525 | 100-499 | ◐ LIKELY ACTIVE |
| HPHarbor Pipe and Steel INC | Riverside | CA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| HIHastings Irrigation Pipe Co - Madera Location | Madera | CA | Primary Metal Manufacturing331315 | 1-19 | ◐ LIKELY ACTIVE |
| HEHydro Extrusion Usa, LLC | City of Industry | CA | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |