| BTBenda Tool & Model Works INC | Hercules | CA | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| CSCalifornia Steel Industries INC | Fontana | CA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CWCentral Wire Group | Perris | CA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| CACertified Alloy Products INC | Long Beach | CA | Primary Metal Manufacturing331492 | 100-499 | ◐ LIKELY ACTIVE |
Craftech Metal Forming, INC | Perris | CA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| NPNorthwest Pipe CO | Adelanto | CA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| SDSuperior Duct Fabrication | Pomona | CA | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| TGThompson Gundrilling INC | Van Nuys | CA | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| VMVista Metals CORP | Fontana | CA | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| ASAcosta Sheet Metal Mfg INC | San Jose | CA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| AAAerotec Alloys | Norwalk | CA | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| DWDavis Wire CORP | Irwindale | CA | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| PPPrecision Powdered Metal Parts | Pomona | CA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| TSThe Strelitz CO INC - California Metal X | Los Angeles | CA | Primary Metal Manufacturing331410 | 20-99 | ◐ LIKELY ACTIVE |
| CDCalifornia Die Casting INC | Ontario | CA | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| DIDynacast, INC. | Lake Forest | CA | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| DIDynalloy, INC. | Irvine | CA | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| EREcobat Resources California INC | City of Industry | CA | Primary Metal Manufacturing331492 | — | ◐ 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 |
| JHJ.l. Haley Enterprises, INC. | Rancho Cordova | CA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
Lex Products, LLC | Pacoima | CA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| LGLuxfer Gas Cylinders | Riverside | CA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| PCPressure Cast Products Corporation | Oakland | CA | Primary Metal Manufacturing331521 | 1-19 | ◐ LIKELY ACTIVE |
| SISearing Industries | Rancho Cucamonga | CA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
Skyline Steel LLC. - Geo Pomona | Pomona | CA | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| SWSumiden Wire Products | Stockton | CA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| TITesla, INC. | Fremont | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| WVWaterman Valve, LLC | Exeter | CA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| WIWireTech Inc. | Commerce | CA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| AGAds Gold INC | Anaheim | CA | Primary Metal Manufacturing331410 | 20-99 | ◐ LIKELY ACTIVE |
| AIArcadia INC | Vernon | CA | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| AMArdagh Metal Packaging | Fairfield | CA | Primary Metal Manufacturing331315 | — | ◐ LIKELY ACTIVE |
| BTBrass Tech INC | Santa Ana | CA | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
Carbon Activated CORP | Compton | CA | Primary Metal Manufacturing331313 | — | ◐ LIKELY ACTIVE |
| CPCitation Precision | Rancho Cucamonga | CA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| HPHeraeus Precious Metals NA LLC | Santa Fe Springs | CA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| KAKasier Aluminum Fabricted Products LLC | Los Angeles | CA | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| KTK Tube Corporation | Poway | CA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| LTLamar Tool & Die Casting | Modesto | CA | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| LMLight Metals INC | City of Industry | CA | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |
| MSMil Spe Magnetics INC | Pomona | CA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| NSNatl Steel & Shipbuilding a General Dynamics CO | San Diego | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| NSNet Shapes INC | Ontario | CA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| OCOkonite Company Plant Number 5 | Santa Maria | CA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| PGPacific Gear Technology, INC. | Norco | CA | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| SRSanta Rosa Stainless Steel | Santa Rosa | CA | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| SESemco Enterprises INC | City of Industry | CA | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| SASierra Aluminum CO | Riverside | CA | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| TETyco Electronics CORP | Redwood City | CA | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |