| USUpstate Shredding | Owego | NY | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| UGU.S. Granules Corporation - Plymouth Facility | Plymouth | IN | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| UMUS Magnesium LLC | Salt Lake City | UT | Primary Metal Manufacturing331410 | 20-99 | ◐ LIKELY ACTIVE |
| USU. S. Steel Tubular Products - Spring TX | Hughes Springs | TX | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| VSValiant Steel & Equipment Inc | Gadsden | AL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| VIVFORGE INC dba THIXOCAST INC | Lakewood | CO | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| VPViking Pump Inc - Foundry (A Unit of IDEX Corporation) | Cedar Falls | IA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| WCWall Colmonoy Corp | Los Lunas | NM | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| WCWall Colmonoy - World Headquarters | Madison Heights | MI | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| WSWatertown SD | Watertown | SD | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| WVWebco VAF | Reno | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WEWeir Esco | Portland | OR | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| WEWeir ESCO - Plant 3 | Portland | OR | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| WCWest Coast Spiral Pipe | Rialto | CA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WEWestern Extrusions NJ | Pennsauken | NJ | Primary Metal Manufacturing331318 | 20-99 | ◐ LIKELY ACTIVE |
| WPWest Point Foundry & Machine CO. | West Point | GA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| WTWheatland Tube Blytheville | Blytheville | AR | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WTWieland Thin Strip | Water | CT | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| WWildomar | Wildomar | CA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WFWinchester Foundry | Winchester | IN | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| WMWire Mesh Texas | Beaumont | TX | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| WIWireTech Inc. | Commerce | CA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| WAWorkshop Art Fabrication LLC | Kingston | NY | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| WSWorthington Steel Technical Services | Columbus | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| ZAZEB Aluminum, LLC | Goose Creek | SC | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| ZOZelienople Operations | Zelienople | PA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |