| MPModern Pattern & Foundry CO. INC. (mp) | Vernon | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MAMonarch Aluminum Casting CO | South Gate | CA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| MWMws Wire Industries | Westlake Village | CA | Primary Metal Manufacturing331422 | — | ◇ UNVERIFIED |
| OCOld Country Millwork INC | Los Angeles | CA | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| PCPacific Cast Products | Santa Fe Springs | CA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| PDPacific Die Casting | Commerce | CA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| PTPacific Tube CO | Los Angeles | CA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| PMParamount Metals & Supply CO | Paramount | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| PCPechiney Cast Plate INC | Vernon | CA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| PAPerformance Aluminum Prod | Ontario | CA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| PDPioneer Diecaster INC | Los Angeles | CA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| PCPirelli Cable Corporation | Colusa | CA | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| PPPrecision Powdered Metal Parts | Pomona | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| PSPrecision Specialty Metals INC | Los Angeles | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| SISalvage I Recycling INC | Chino | CA | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| SGSan Gabriel Valley Area 2 | Baldwin Park | CA | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| SESemco Enterprises INC | City of Industry | CA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| SDStar Die Casting & Manufacturing, INC | Santa Fe Springs | CA | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Mira Loma | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| TTamco | Rancho Cucamonga | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| TPTci Precision Metals | Gardena | CA | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| TATechnical Anodize LLC | Pomona | CA | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| TCTeledyne Cast Parts Pomona Operations | Walnut | CA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| TITeledyne Instruments - Analytical Instruments | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| TTimet | Vallejo | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| TITitech International (wohl Property) | Walnut | CA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| TWT.i. Wire | Etiwanda | CA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| TCTusco Casting CORP. | Lodi | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| UWUltra Wheel CO | Buena Park | CA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| UPU.s. Pipe Fabrication | Olivehurst | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| VBValley Brass Incorporated | El Monte | CA | Primary Metal Manufacturing331529 | — | ◇ UNVERIFIED |
| VAVirgils Auto Body | Newbury Park | CA | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| WIWeartech International INC | Anaheim | CA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| WTWestern Tube & Conduit CORP | Long Beach | CA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| AMAeromax Metals INC | Fresno | CA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| ACAmerican Casting Company LLC | Hollister | CA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| CEContext Engineering CO | Gilroy | CA | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| CBCornerstone Building Brands - Metal Solution | Atwater | CA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| DIDeanco Industrial Tires, INC | El Cajon | CA | Primary Metal Manufacturing331318 | — | ▲ REPORTED CLOSED |
| DIDuranium INC. | Alameda | CA | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| EGEdelbrock Group, LLC | San Jacinto | CA | Primary Metal Manufacturing331524 | 100-499 | ◐ LIKELY ACTIVE |
| HCHaydon Corporation CA | Stockton | CA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| HHeadquarters | Santa Clara | CA | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| HJHillary J Hyman | Indio | CA | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
| HCHydro COI | City of Industry | CA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| KAKaiser Aluminum | Commerce | CA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| LALincoln Alloy LLC | Yuba City | CA | Primary Metal Manufacturing331315 | — | ◐ LIKELY ACTIVE |
| LHLuxco Holdings, L.l.c | Eastvale | CA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| MSMedtronic Santa Clara | Santa Clara | CA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| MAMerit Aluminum Inc (Building #2) | Corona | CA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
