| FDFlow Dynamics INC | Ontario | — | ◇ UNVERIFIED |
| FKFormer Kaiser Steel Mill Facility | Fontana | — | ◇ UNVERIFIED |
| GGerdau | Rancho Cucamonga | — | ◇ UNVERIFIED |
| GWGlobal West | San Bernardino | — | ◇ UNVERIFIED |
| GSGreenstone Steel LLC | Upland | — | ◇ UNVERIFIED |
| HIHartman Industries Dba Commercial Casting Company | Fontana | — | ◇ UNVERIFIED |
| HWH. Wayne Lewis INC Dba Amber Steel CO. | Rialto | — | ◇ UNVERIFIED |
| IPIshaana Properties, LLC | Ontario | — | ◇ UNVERIFIED |
| JIJMZ Investments, LLC | Fontana | — | ◇ UNVERIFIED |
| KCKaiser Commerce Center | Fontana | — | ◇ UNVERIFIED |
| KSKdr Steel | Rialto | — | ◇ UNVERIFIED |
| KLKim Lighting | Ontario | — | ◇ UNVERIFIED |
| KMKloeckner Metals Corporation | Fontana | — | ◇ UNVERIFIED |
| LMLb Madole CO INC | Chino | — | ◇ UNVERIFIED |
| LMLead Masters | Hesperia | — | ◇ UNVERIFIED |
| LPLined Pipe Systems LLC | Rancho Cucamonga | — | ◇ UNVERIFIED |
| LRLock Ridge Tool Company INC | Upland | — | ◇ UNVERIFIED |
| LPLynwood Pattern | Ontario | — | ◇ UNVERIFIED |
| MCMehas Construction | Rancho Cucamonga | — | ◇ UNVERIFIED |
| MRMetal Resources INC | Fontanta | — | ◇ UNVERIFIED |
| MMMission Metals | Rialto | — | ◇ UNVERIFIED |
| MBMontclair Bronze INC | Montclair | — | ◇ UNVERIFIED |
| MEMvi Engineering & Manufacturing INC | Ontario | — | ◇ UNVERIFIED |
| NSNet Shapes INC | Ontario | — | ◇ UNVERIFIED |
| NSNet Shapes INC | Ontario | — | ◇ UNVERIFIED |
| OCOntario Castings, Performance Aluminum Products, Reeds Patterns & Molds, R&S ... | Ontario | — | ◇ UNVERIFIED |
| OEOntario Extrusions, INC. | Ontario | — | ◇ UNVERIFIED |
| OSOregon Steel Mills-fontana Div | Fontana | — | ◇ UNVERIFIED |
| PSPacific Steel Group | Bloomington | — | ◇ UNVERIFIED |
| PRParamount Roll & Forming, INC. | Adelanto | — | ◇ UNVERIFIED |
| PAPerformance Aluminum Products | Ontario | — | ◇ UNVERIFIED |
| RSRegional Steel CORP | Fontana | — | ◇ UNVERIFIED |
| RWRt Welding | Hesperia | — | ◇ UNVERIFIED |
| SRSanta Rosa Lead Products LLC | Ontario | — | ◇ UNVERIFIED |
 Schlosser Forge Company Rancho Plant #2 | Fontana | — | ◇ UNVERIFIED |
| SISearing Ind | Rancho Cucamonga | — | ◇ UNVERIFIED |
| SESharon Escoto | Hesperia | — | ◇ UNVERIFIED |
| SPShawcor Pipe Protection LLC. | Fontana | — | ◇ UNVERIFIED |
| SASierra Aluminum Architectural | Fontana | — | ◇ UNVERIFIED |
| SASierra Aluminum Company | Fontana | — | ◇ UNVERIFIED |
| SASierra Aluninum Fontana Extrusion Operation | Fontana | — | ◇ UNVERIFIED |
| SMSnl-iov Montclair Owner LLC | Montclair | — | ◇ UNVERIFIED |
| SUSteelco U.S.A; Great Pacific Elbow Company; Deluxe Building Products | Chino | — | ◇ UNVERIFIED |
| SFSteel Flow Corporation | San Bernardino | — | ◇ UNVERIFIED |
| TPTerrycable Products | Hesperia | — | ◇ UNVERIFIED |
| THThe Herrick Corporation | San Bernardino | — | ◇ UNVERIFIED |
| TWTi Wire | Rancho Cucamonga | — | ◇ UNVERIFIED |
| TWTi Wire | Etiwanda | — | ◇ UNVERIFIED |
| TITree Island Steel Dba Tree Island Wire USA INC | San Bernardino | — | ◇ UNVERIFIED |
| TITree Island Wire | Rancho Cucamonga | — | ◇ UNVERIFIED |
