| EREcobat Resources California INC | City of Industry | CA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| LMLight Metals INC | City of Industry | CA | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |
| PFPac Foundries - Industry | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CSCalifornia Steel and Tube | City of Industry | CA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| HEHydro Extrusion Usa, LLC | City of Industry | CA | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| CDCascade Die Casting / Pacific | City of Industry | CA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| KCKrall Cast INC | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| SESemco Enterprises INC | City of Industry | CA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| TITeledyne Instruments - Analytical Instruments | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| HCHydro COI | City of Industry | CA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| EMEl Monte Non Ferrous Foundry INC. | City of Industry | CA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| HCHowmet Castings | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| KMKloeckner Metals CORP. | City of Industry | CA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| LDLansco Die Casting INC | City of Industry | CA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| PSProminent Systems INC | City of Industry | CA | Primary Metal Manufacturing331311 | — | ◇ UNVERIFIED |
| QIQuemetco INC | City of Industry | CA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| SESapa Extruder, INC | City of Industry | CA | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| SESolo Enterprise CORP | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
