| UIUnobtanium INC | Oregon City | OR | — | ◇ UNVERIFIED |
| UVUpper Valley Design LLC | Alstead | NH | — | ◇ UNVERIFIED |
| USUpright Steel Fabricators and Erectors LLC | Cleveland | OH | — | ◇ UNVERIFIED |
| UMUpson Metal Fabricators | San Jacinto | CA | — | ◇ UNVERIFIED |
| UAUrbanovsky Advanced Construction, LLC | Cleburne | TX | — | ◇ UNVERIFIED |
| USU. S. Boiler & Tube Company, INC. | Fort Payne | AL | — | ◇ UNVERIFIED |
| UBU.s. Bridge | Cambridge | OH | — | ◇ UNVERIFIED |
| UCU.s. Chutes Corporation | Bantam | CT | — | ◇ UNVERIFIED |
| ULUscoe Louisville Repair Sta | Louisville | KY | — | ◇ UNVERIFIED |
| UDU.s. Defense National Stockpile Center Point Pleasant Depot | Point Pleasant | WV | — | ◇ UNVERIFIED |
| UDU.s. Dol Osha | Chambersburg | PA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Acworth | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Cincinnati Area Office | Springboro | OH | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Saraland | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Cowarts | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha- North Aurora | Carol Stream | IL | — | ◇ UNVERIFIED |
| UOUsdol Osha - Tampa Ao | Tampa | FL | — | ◇ UNVERIFIED |
| UDUS Duct, INC. | Kernersville | NC | — | ◇ UNVERIFIED |
| UUUsemco Universal Sanitary Equipment Mfg | Tomah | WI | — | ◇ UNVERIFIED |
| UIUsg Interiors LLC | Stockton | CA | — | ◇ UNVERIFIED |
| UMUS Machine INC | Fairmont | WV | — | ◇ UNVERIFIED |
| UMUS Mat Systems LLC | Mcminnville | OR | — | ◇ UNVERIFIED |
| UMUS Metal Works INC | Sandy | OR | — | ◇ UNVERIFIED |
| UNUS National Steel LLC | Stuart | FL | — | ◇ UNVERIFIED |
| UPU.s. Products | San Antonio | TX | — | ◇ UNVERIFIED |
| USUsp Structural Connectors | Largo | FL | — | ◇ UNVERIFIED |
| UOUtah Ornamental and Iron | Salt Lake City | UT | — | ◇ UNVERIFIED |
| USUtah Steel INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| USUtica Steel, Inc. | Chesterfield | MI | — | ◇ UNVERIFIED |
| UOUtility Optimization Group LLC | Pascagoula | MS | — | ◇ UNVERIFIED |
| UOUtility Optimization Group LLC | Moss Point | MS | — | ◇ UNVERIFIED |
| VIValley Iron | Lancaster | CA | — | ◇ UNVERIFIED |
| VIValley Iron Fabricators & Erectors INC | Lancaster | CA | — | ◇ UNVERIFIED |
| VMValley Machine & Welding CO. | Chattanooga | TN | — | ◇ UNVERIFIED |
| VSValley Steel Company | Saginaw | MI | — | ◇ UNVERIFIED |
| VWValley Welding Service | Mission | TX | — | ◇ UNVERIFIED |
| VWValley West Welding CO INC | Waverly | TN | — | ◇ UNVERIFIED |
| VIValmont Industries INC | Elkhart | IN | — | ◇ UNVERIFIED |
| VIValmont Industries INC | Farmington | MN | — | ◇ UNVERIFIED |
| VIValmont Industries INC | Salem | OR | — | ◇ UNVERIFIED |
| VIValmont Industries, INC. | Valley | NE | — | ◇ UNVERIFIED |
| VNValmont Newmark | Claremore | OK | — | ◇ UNVERIFIED |
| VNValmont Newmark | Hazleton | PA | — | ◇ UNVERIFIED |
| VFValmont-newmark Fab Shop | Tuscaloosa | AL | — | ◇ UNVERIFIED |
| VIValmont-newmark International, Incorporated | West Hazleton | PA | — | ◇ UNVERIFIED |
| VSValmont Structures INC Dba Pirod INC Plants 1 2 & 5 | Plymouth | IN | — | ◇ UNVERIFIED |
| VWValmont West Coast Engineering | Ferndale | WA | — | ◇ UNVERIFIED |
| VSValue Structures, INC. | Ellwood City | PA | — | ◇ UNVERIFIED |
| VSVandellen Steel INC | Dutton | MI | — | ◇ UNVERIFIED |
| VEVandergriff Enterprises, INC. Dba Hedman South | Alpharetta | GA | — | ◇ UNVERIFIED |
| VFVan Fab INC | Union Hill | IL | — | ◇ UNVERIFIED |
| VIVan Industries INC | Birdsboro | PA | — | ◇ UNVERIFIED |
 Van Linda Iron Works INC | Lake Worth | FL | — | ◇ UNVERIFIED |
| Van Linda Iron Works, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| VLVanmark, LLC | Virginia Beach | VA | — | ◇ UNVERIFIED |
| VMVaughn Manufacturing Corporation | Salisbury | MA | — | ◇ UNVERIFIED |
| VPVault Pro, INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| VFV.b. Fabricators, INC. | Glenshaw | PA | — | ◇ UNVERIFIED |
| VWVds - West, INC. | Mesa | AZ | — | ◇ UNVERIFIED |
| VIVega Iron Works | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| VOVelardes Ornamental Iron | Madera | CA | — | ◇ UNVERIFIED |
| VCVelocity Custom Fabrication, Inc. | Tulsa | OK | — | ◇ UNVERIFIED |
| VIVentower Industries LLC | Monroe | MI | — | ◇ UNVERIFIED |
| VCVenus Corporation | Blytheville | AR | — | ◇ UNVERIFIED |
| VMVernier Metal Fabricating, Inc. | Seymour | CT | — | ◇ UNVERIFIED |
| VWVernon Way, LLC | El Cajon | CA | — | ◇ UNVERIFIED |
| VIVersa-tech Industries INC | Tucumcari | NM | — | ◇ UNVERIFIED |
| VSVertex Steel INC | Milford | MI | — | ◇ UNVERIFIED |
| VBVery Best Steel LLC | Belleville | MI | — | ◇ UNVERIFIED |
| VGV & G Iron Works INC. | Tewksbury | MA | — | ◇ UNVERIFIED |
| VHV & H Fabrication and Repairs, INC. | Jeanerette | LA | — | ◇ UNVERIFIED |
| VMVican Manufacturing Solutions LLC | Texas City | TX | — | ◇ UNVERIFIED |
| VIVictor's Ironworks | San Rafael | CA | — | ◇ UNVERIFIED |
| VFVillage Forge Inc | Hyde Park | MA | — | ◇ UNVERIFIED |
| VFVillage Forge, INC. | Framingham | MA | — | ◇ UNVERIFIED |
| VSVillage Smithy (former) | Colgate | WI | — | ◇ UNVERIFIED |
| VIVilla Iron Works INC | Sacramento | CA | — | ◇ UNVERIFIED |
| VIV I P Iron Works Inc, Hector Gutierrez | Los Angeles | CA | — | ◇ UNVERIFIED |
| VCVirginia Carolina Steel Incorporated | Norfolk | VA | — | ◇ UNVERIFIED |
| VFVision Fabrication LLC | Fair Play | SC | — | ◇ UNVERIFIED |
| VTVision Technologies Marine, INC. | Pascagoula | MS | — | ◇ UNVERIFIED |
| VSVista Steel | Ventura | CA | — | ◇ UNVERIFIED |
| VSVista Steel Company | Goleta | CA | — | ◇ UNVERIFIED |
| VSVista System LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| VSVoight & Schweitzer | Muskogee | OK | — | ◇ UNVERIFIED |
| VSVoigt & Schweitzer Taunton Galvanizing, LLC | Taunton | MA | — | ◇ UNVERIFIED |
| VFVons Fuel Center #2344 | Escondido | CA | — | ◇ UNVERIFIED |
| VIVsc INC Dba Vulcan Steel Company | Bloomington | CA | — | ◇ UNVERIFIED |
| VIVsc Incorporated Dba Vulcan Steel Company | Bloomington | CA | — | ◇ UNVERIFIED |
| VVsl | Hanover | MD | — | ◇ UNVERIFIED |
| VGVsteel Group, Inc. | Houston | TX | — | ◇ UNVERIFIED |
| VFVtr Fence and Gate | Sacramento | CA | — | ◇ UNVERIFIED |
| VIVulcan Industries | Coraopolis | PA | — | ◇ UNVERIFIED |
| VPVulcan Products CO | Woodinville | WA | — | ◇ UNVERIFIED |
| VTVulcan Texas Manufacturing LLC | Willis | TX | — | ◇ UNVERIFIED |
| VDVulcraft - Division of Nucor Corporation- Steel Products Manufacturing | Brigham City | UT | — | ◇ UNVERIFIED |
| VSVulcraft Solar | Chemung | NY | — | ◇ UNVERIFIED |
| VMV&v Metalworks | Pharr | TX | — | ◇ UNVERIFIED |
| WSWa317935235 - Shapecut Industries LLC | Spokane | WA | — | ◇ UNVERIFIED |
| WUWa317935412 - Universal Steel Manufacturing LLC | Tacoma | WA | — | ◇ UNVERIFIED |
