| UAUrbanovsky Advanced Construction, LLC | Cleburne | TX | — | ◇ UNVERIFIED |
| UBU.s. Bridge | Cambridge | OH | — | ◇ UNVERIFIED |
| ULUscoe Louisville Repair Sta | Louisville | KY | — | ◇ UNVERIFIED |
| UDU.s. Defense National Stockpile Center Point Pleasant Depot | Point Pleasant | WV | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Acworth | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Cincinnati Area Office | Springboro | OH | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Cowarts | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Saraland | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha- North Aurora | Carol Stream | IL | — | ◇ UNVERIFIED |
| UUUsemco Universal Sanitary Equipment Mfg | Tomah | WI | — | ◇ UNVERIFIED |
| UMUS Machine INC | Fairmont | WV | — | ◇ 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 |
| UIUtex Industries Specialty Valves Division | Tomball | TX | — | ◇ UNVERIFIED |
| USUtica Steel, Inc. | Chesterfield | MI | — | ◇ UNVERIFIED |
| VEValley Engravers Incorporated | Burbank | CA | — | ◇ 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 | Salem | OR | — | ◇ UNVERIFIED |
| VIValmont Industries INC | Farmington | MN | — | ◇ UNVERIFIED |
| VIValmont Industries INC | Elkhart | IN | — | ◇ 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 |
 Van Linda Iron Works INC | Lake Worth | FL | — | ◇ UNVERIFIED |
| Van Linda Iron Works, INC. | West Palm Beach | FL | — | ◇ 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 |
| VCVelocity Custom Fabrication, Inc. | Tulsa | OK | — | ◇ UNVERIFIED |
| VIVentower Industries LLC | Monroe | MI | — | ◇ UNVERIFIED |
| VCVenus Corporation | Blytheville | AR | — | ◇ UNVERIFIED |
