| EGEssex Group INC C O Transloading Env CORP | Commerce | — | ◇ UNVERIFIED |
| ETExide Technologies Northern Assessment Area Cleanup | Los Angeles | — | ◇ UNVERIFIED |
| ESExpress Services, INC. | Santa Fe Springs | — | ◇ UNVERIFIED |
| FPFenico Precision Castings INC | Paramount | — | ◇ UNVERIFIED |
| FUFerro Union | City of Industry | — | ◇ UNVERIFIED |
| FFFormer Foundry Aluminum | Los Angeles | — | ◇ UNVERIFIED |
| FMFrancisco's Metal | Los Angeles | — | ◇ UNVERIFIED |
| GOGasser Olds CO INC | Vernon | — | ◇ UNVERIFIED |
| GCGe Core Company | Cudahy | — | ◇ UNVERIFIED |
| GAGemini Aluminum CORP | Pomona | — | ◇ UNVERIFIED |
| GIGlobe Iron Foundry INC | Commerce | — | ◇ UNVERIFIED |
| GIGregg Industries INC | El Monte | — | ◇ UNVERIFIED |
| HIHamrock INC | Santa Fe Springs | — | ◇ UNVERIFIED |
| HLHarbor Lift Service LLC | Wilmington | — | ◇ UNVERIFIED |
| HEHardcast Enterprises INC | Lancaster | — | ◇ UNVERIFIED |
| HQHigh Quality Alloys | Santa Fe Springs | — | ◇ UNVERIFIED |
| HCHowmet Castings | City of Industry | — | ◇ UNVERIFIED |
| IMIdeal Metal and Salvage CO | Gardena | — | ◇ UNVERIFIED |
| IDInternational Die Casting INC | Gardena | — | ◇ UNVERIFIED |
| IEInternational Extrusion CORP | Alhambra | — | ◇ UNVERIFIED |
| IMInterstate Machinery | Santa Fe Springs | — | ◇ UNVERIFIED |
| ILInt'l Light Metals Corporation | Los Angeles | — | ◇ UNVERIFIED |
| JAJohnson Aluminum Foundry | Cerritos | — | ◇ UNVERIFIED |
| KSKairos Supply INC | Gardena | — | ◇ UNVERIFIED |
 Kaiser Aluminum Fabricated Products, LLC | Los Angeles | — | ◇ UNVERIFIED |
| KIKatlan Industries INC | Paramount | — | ◇ UNVERIFIED |
| KMKloeckner Metals | Santa Fe Springs | — | ◇ UNVERIFIED |
| KMKloeckner Metals CORP. | City of Industry | — | ◇ UNVERIFIED |
| KCKwik Cutting & Grinding | Compton | — | ◇ UNVERIFIED |
| LDLansco Die Casting INC | City of Industry | — | ◇ UNVERIFIED |
| LHLawson Hughes CO INC | South El Monte | — | ◇ UNVERIFIED |
| LSLexington Steel Corporation | Los Angeles | — | ◇ UNVERIFIED |
| LCLiska Constructors Dba Aeroforming | Paramount | — | ◇ UNVERIFIED |
| LALos Angeles Pump and Valve Products | Huntington Park | — | ◇ UNVERIFIED |
| LALos Angeles Pump and Valve Products | Huntington Park | — | ◇ UNVERIFIED |
| LALos Angeles Pump and Valve Products, Inc. | Huntington Park | — | ◇ UNVERIFIED |
| LWLucky Welding & Iron, Sung Chang, Dba | Los Angeles | — | ◇ UNVERIFIED |
 Machineworks Manufacturing | Chatsworth | — | ◇ UNVERIFIED |
| MAMagnesium Alloy Prod. CO | Compton | — | ◇ UNVERIFIED |
| MIMagparts INC | Azusa | — | ◇ UNVERIFIED |
| MBMajor Brass Corporation | Gardena | — | ◇ UNVERIFIED |
| MBMajor Brass Foundry INC | Gardena | — | ◇ UNVERIFIED |
| MAManhole Adjusting Contractors | Monterey Park | — | ◇ UNVERIFIED |
| MAMaruichi American CORP | Santa Fe Springs | — | ◇ UNVERIFIED |
| MIMas Iron CO | Los Angeles | — | ◇ UNVERIFIED |
| MCMaster Cutting & Engineering INC | Santa Fe Springs | — | ◇ UNVERIFIED |
| MBMetal Briquetting Company | Los Angeles | — | ◇ UNVERIFIED |
 Metalor Technologies USA | Los Angeles | — | ◇ UNVERIFIED |
| MMMichael Miraula | North Hollywood | — | ◇ UNVERIFIED |
| MFMid-west Fabricating Co, West Bent Bolt | Santa Fe Springs | — | ◇ UNVERIFIED |
