| GPGreif Packaging LLC | Fontana | CA | Paper Manufacturing322214 | — | ◇ UNVERIFIED |
| 1V101 Vertical Fabrication | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| ASAmeron Steel Fabrication Division | Fontana | CA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| BCBway Corporation | Fontana | CA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| CHCommercial Honing CO | Fontana | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| IIImpac International | Fontana | CA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| LLynam | Fontana | CA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| VCVan Can CO | Fontana | CA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| CFCustom Fabricated Metals, LLC | Fontana | CA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| VFVanguard Fabrications Corporation | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| ASAmerican Security Products INC | Fontana | CA | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| APAsc Profiles INC Dba Aep Span | Fontana | CA | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| APAsr Powder Coating LLC. | Fontana | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
 Brooks Industrial Marketplace | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CWCal West Manufacturing | Fontana | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CWCameron West Coast | Fontana | CA | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| CSCapitol Steel Fabricatiors INC | Fontana | CA | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| CPClark Pacific Dba Pacific Embedded Products | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CConexwest | Fontana | CA | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| GIGph Irrigation | Fontana | CA | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
 Greenfield Metal Systems, INC. Dba Mwf Solutions | Fontana | CA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| HTHi Tech Machine Shop | Fontana | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| IMIcon Metal Works INC Dba Icon Structures | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| LILuster-cote INC | Fontana | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
 Mac Industries | Fontana | CA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| MMMill Man Steel INC | Fontana | CA | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| PSParcell Steel CORP | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| QSQuanex Screens/quanex Building Products | Fontana | CA | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| RSRegional Steel CORP | Fontana | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| RCRnd Contractors INC | Fontana | CA | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| RERoca Engineering Inc. | Fontana | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
 Schlosser Forge Company Rancho Plant #2 | Fontana | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| SPShawcor Pipe Protection LLC. | Fontana | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| SSSuperior Sandblasting & Coatings | Fontana | CA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| TSTreon Steel Fabricators INC | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| UPUS Pipe Fabrication | Fontana | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| WIWadco Ind INC | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| WCW C Brown Weldingna INC. | Fontana | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| WAWorthington Armstrong Venture | Fontana | CA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
