| SISuperior Industries International INC | Van Nuys | — | ◇ UNVERIFIED |
| TPTerrycable Products | Hesperia | — | ◇ UNVERIFIED |
| TAThakar Aluminum CORP | Corona | — | ◇ UNVERIFIED |
| TBThe Buyers INC | Santa Fe Springs | — | ◇ UNVERIFIED |
| TCThe Carlstar Group LLC | Ontario | — | ◇ UNVERIFIED |
| THThe Herrick Corporation | San Bernardino | — | ◇ UNVERIFIED |
| TOThe Okonite Company | Santa Maria | — | ◇ UNVERIFIED |
 Thermal Equipment Corporation | Rancho Dominguez | — | ◇ UNVERIFIED |
| TSThe Strelitz CO INC | Los Angeles | — | ◇ UNVERIFIED |
| TMThorock Metals INC | Compton | — | ◇ UNVERIFIED |
| TMThyssenkrupp Materials Na/ - Ken Mac Metals | Santa Fe Spgs | — | ◇ UNVERIFIED |
| TSTitanium Specialties | Taft | — | ◇ UNVERIFIED |
| TWTitan Workforce | Yuba City | — | ◇ UNVERIFIED |
| TWTi Wire | Etiwanda | — | ◇ UNVERIFIED |
| TWTi Wire | Rancho Cucamonga | — | ◇ UNVERIFIED |
| TPTomra Pacific, INC | Fremont | — | ◇ UNVERIFIED |
| TTTotten Tubes INC - Santee | Santee | — | ◇ UNVERIFIED |
| TTTransition45 Technologies INC | Orange | — | ◇ UNVERIFIED |
| TITree Island Steel Dba Tree Island Wire USA INC | San Bernardino | — | ◇ UNVERIFIED |
| TITree Island Wire | Rancho Cucamonga | — | ◇ UNVERIFIED |
| TITree Island Wire (usa) INC. | Walnut | — | ◇ UNVERIFIED |
| TGTri-alloy Group, LLC | Montclair | — | ◇ UNVERIFIED |
| TFTriangle Fasteners INC | Ontario | — | ◇ UNVERIFIED |
| TITru-cut INC | Gardena | — | ◇ UNVERIFIED |
| TSTryad Service CORP. | Shafter | — | ◇ UNVERIFIED |
| THTubbs Holding | Sacramento | — | ◇ UNVERIFIED |
| TBTube Bending Specialists & Machinery, LLC | Hayward | — | ◇ UNVERIFIED |
| TCTusco Casting Corporation | Lodi | — | ◇ UNVERIFIED |
| TBTy Bar CORP | South Gate | — | ◇ UNVERIFIED |
| TNTyvak Nano Satellite Systems | Irvine | — | ◇ UNVERIFIED |
| UUlbrich | Pico Rivera | — | ◇ UNVERIFIED |
| UUUltra USA INC | Los Angeles | — | ◇ UNVERIFIED |
| UAUmc Acquisition CORP | Lynwood | — | ◇ UNVERIFIED |
| UAUnited Alloys INC | Los Angeles | — | ◇ UNVERIFIED |
| UPUnited Pipe & Steel | Stockton | — | ◇ UNVERIFIED |
| UPUnited Power Generation INC | Riverside | — | ◇ UNVERIFIED |
| USUnited Security Product INC | Poway | — | ◇ UNVERIFIED |
| USUnited Spiral Pipe LLC Manufacturing Plan | Pittsburg | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company Dba U.s. Pi | Union City | — | ◇ UNVERIFIED |
| UAUniversal Alloy Corporation | Anaheim | — | ◇ UNVERIFIED |
| UDUniversal Die Casting CO | Los Angeles | — | ◇ UNVERIFIED |
| UMUniversal Machine Company INC | Paramount | — | ◇ UNVERIFIED |
| UMUniversal Molding Company | Lynwood | — | ◇ UNVERIFIED |
| UMUniversal Molding Company INC. | Anaheim | — | ◇ UNVERIFIED |
| UPUSA Produce | Los Banos | — | ◇ UNVERIFIED |
| UCUsg Ceilings Plus LLC | Commerce | — | ◇ UNVERIFIED |
| UPUS Pole Company | Palmdale | — | ◇ UNVERIFIED |
| USU S Reduction CO | Fontana | — | ◇ UNVERIFIED |
| USU S Technical Ceramics INC | Morgan Hill | — | ◇ UNVERIFIED |
| VPValley Pattern & Mfg INC. | Stockton | — | ◇ UNVERIFIED |
