Ulbrich Shaped Wire, INC. | North Haven | CT | Primary Metal Manufacturing331221 | 20-99 | ● ACTIVE |
| UDUltraviolet Devices Incorporated | Valencia | CA | Primary Metal Manufacturing331421 | 20-99 | ● ACTIVE |
| UOUmicore Optical Materials USA INC. | Quapaw | OK | Chemical Manufacturing325180 | 20-99 | ● ACTIVE |
Unarco Material Handling, LLC | Springfield | TN | Primary Metal Manufacturing331221 | 100-499 | ● ACTIVE |
United Metal Fabricators, INC. | Johnstown | PA | Primary Metal Manufacturing331520 | — | ● ACTIVE |
Universal Stainless & Alloy Products INC | Bridgeville | PA | Primary Metal Manufacturing331110 | — | ● ACTIVE |
Univertical LLC | Angola | IN | Chemical Manufacturing325180 | 20-99 | ● ACTIVE |
Urschel Laboratories, INC. | Chesterton | IN | Primary Metal Manufacturing331512 | 500+ | ● ACTIVE |
U.s. Bronze Foundry & Machine, INC | Meadville | PA | Primary Metal Manufacturing331525 | — | ● ACTIVE |
| UPUS Premier Tube Mills, LLC | Madison | IN | Primary Metal Manufacturing331111 | 100-499 | ● ACTIVE |
Valley Metals, LLC | Poway | CA | Primary Metal Manufacturing331221 | 20-99 | ● ACTIVE |
| VSVallourec Star | Houston | TX | Primary Metal Manufacturing331210 | 100-499 | ● ACTIVE |
| VMVdm Metals USA LLC | Florham Park | NJ | Primary Metal Manufacturing331420 | 100-499 | ● ACTIVE |
Virginia Steel & Fabrication, INC | Bastian | VA | Primary Metal Manufacturing331210 | — | ● ACTIVE |
| VMVista Metals | Adairsville | GA | Primary Metal Manufacturing331314 | 100-499 | ● ACTIVE |
| VAV&s Amboy Galvanizing LLC | Perth Amboy | NJ | Primary Metal Manufacturing331111 | 20-99 | ● ACTIVE |
Vulcan INC | Foley | AL | Primary Metal Manufacturing331315 | 100-499 | ● ACTIVE |
| WSWaelz Sustainable Products LLC | Logansport | IN | Primary Metal Manufacturing331492 | 100-499 | ● ACTIVE |
Washburn Iron Works INC | Washburn | WI | Primary Metal Manufacturing331511 | 20-99 | ● ACTIVE |
Waupaca Foundry INC - Plant 2 & 3 | Waupaca | WI | Primary Metal Manufacturing331510 | 500+ | ● ACTIVE |
Wdc Acquisition LLC | Creston | IA | Primary Metal Manufacturing331313 | 100-499 | ● ACTIVE |
| WIWebco Ind Inc/oil City Tube Div | Oil City | PA | Primary Metal Manufacturing331210 | 100-499 | ● ACTIVE |
| WIWebco Industries Texas Distribution Division | Orange | TX | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
West Phila. Bronze Co., INC | Chester | PA | Primary Metal Manufacturing331529 | — | ● ACTIVE |
| WTWheatland Tube Company - Council | Wheatland | PA | Primary Metal Manufacturing331210 | 100-499 | ● ACTIVE |
| WAWilliams Advanced Materials INC | Buffalo | NY | Primary Metal Manufacturing331491 | — | ● ACTIVE |
| WIWillman Industries INC | Cedar Grove | WI | Primary Metal Manufacturing331510 | 100-499 | ● ACTIVE |
| WIWirco INC | Champaign | IL | Primary Metal Manufacturing331513 | 20-99 | ● ACTIVE |
Wisconsin Aluminum Foundry Company, INC. | Manitowoc | WI | Primary Metal Manufacturing331520 | — | ● ACTIVE |
Wl Gore & Associates INC | Newark | DE | Primary Metal Manufacturing331491 | — | ● ACTIVE |
Wolverine Bronze CO | Roseville | MI | Primary Metal Manufacturing331420 | 20-99 | ● ACTIVE |
Wooster Products INC | Wooster | OH | Primary Metal Manufacturing331318 | — | ● ACTIVE |
| WSWorthington Steel | Porter | IN | Primary Metal Manufacturing331221 | 100-499 | ● ACTIVE |
| WSWorthington Steel Rome LLC (former Rome Strip Steel) | Rome | NY | Primary Metal Manufacturing331221 | 100-499 | ● ACTIVE |
| WCWyman-gordon Company | North Grafton | MA | Primary Metal Manufacturing331492 | 100-499 | ● ACTIVE |
| YMYamaha Marine Precision Propellers INC. Greenfield | Greenfield | IN | Primary Metal Manufacturing331512 | 100-499 | ● ACTIVE |
Yankee Casting Co, INC | Enfield | CT | Primary Metal Manufacturing331521 | 20-99 | ● ACTIVE |
| 8L80/20, LLC | Columbia City | IN | Primary Metal Manufacturing331315 | — | ● ACTIVE |
Above All Cnc, INC. | Goleta | CA | Primary Metal Manufacturing331513 | — | ● ACTIVE |
| AAAccu-fab and Construction, INC | Moss Point | MS | Primary Metal Manufacturing331111 | — | ● ACTIVE |
Aci Alloys, INC | San Jose | CA | Primary Metal Manufacturing331492 | — | ● ACTIVE |
Adams & Westlake LTD | Elkhart | IN | Primary Metal Manufacturing331524 | — | ● ACTIVE |
Advance Bronze INC | Lodi | OH | Primary Metal Manufacturing331523 | — | ● ACTIVE |
Aero Metals INC | La Porte | IN | Primary Metal Manufacturing331512 | — | ● ACTIVE |
A. Finkl & Sons CO. | Chicago | IL | Primary Metal Manufacturing331110 | — | ● ACTIVE |
Aim Products LLC | Cranston | RI | Primary Metal Manufacturing331492 | — | ● ACTIVE |
| AUAlcoa USA CORP | Massena | NY | Primary Metal Manufacturing331312 | 100-499 | ● ACTIVE |
Alexandria Extrusion Midamerica LLC | Indianapolis | IN | Primary Metal Manufacturing331316 | — | ● ACTIVE |
Allied Locke Industries INC | Dixon | IL | Primary Metal Manufacturing331511 | — | ● ACTIVE |
Allied Metals CO | Johnson City | TN | Primary Metal Manufacturing331423 | — | ● ACTIVE |