| UPUnder Pressure Systems LLC | New Philadelphia | OH | — | ◇ UNVERIFIED |
| UIUni-fab Industries INC | Fremont | CA | — | ◇ UNVERIFIED |
| UEUnified Equipment Systems INC | Clinton Township | MI | — | ◇ UNVERIFIED |
| UIUnimatic INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| UIUnimatic INC | Saint Louis Park | MN | — | ◇ UNVERIFIED |
| UTUnion Tank Car Company | East Chicago | IN | — | ◇ UNVERIFIED |
| UTUnion Tank Car CO - Valdosta Facility | Valdosta | GA | — | ◇ UNVERIFIED |
| UVUnion Valve Svc & Supply | Ripley | WV | — | ◇ UNVERIFIED |
| UOUniparts Olsen, INC. | — | IA | — | ◇ UNVERIFIED |
| UFUnique Firestop Products, INC. | Robertsdale | AL | — | ◇ UNVERIFIED |
| UMUnique Machine & Tool | Mc Kees Rocks | PA | — | ◇ UNVERIFIED |
| UMUnique Metal Fabrication INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| UVUni-seal Valve Company INC | Ventura | CA | — | ◇ UNVERIFIED |
| UAUnited Airlines, INC. | Newark | NJ | — | ◇ UNVERIFIED |
| UIUnited Industries, INC. | Odessa | TX | — | ◇ UNVERIFIED |
| UMUnited Machining, Inc | Sutton | MA | — | ◇ UNVERIFIED |
| UMUnited Machining, INC. | Englewood | CO | — | ◇ UNVERIFIED |
| UMUnited Mechanical & Metal Fabricators, Inc. | Union City | CA | — | ◇ UNVERIFIED |
| UPUnited Performance Metals | La Mirada | CA | — | ◇ UNVERIFIED |
| USUnited Steel Ventures INC Dba United Precision Mac | Edina | MN | — | ◇ UNVERIFIED |
| UTUnity Tool INC Dba Unity Precision Manufacturing | Maple Grove | MN | — | ◇ UNVERIFIED |
| UCUniversal Compression INC | Tulsa | OK | — | ◇ UNVERIFIED |
| UFUniversal Formations INC | Burnsville | MN | — | ◇ UNVERIFIED |
| UHUniversal Head CO INC | Joliet | IL | — | ◇ UNVERIFIED |
| UMUniversal Machine Shop | Huntington Beach | CA | — | ◇ UNVERIFIED |
| UTUniversal Tool, INC. | Rainbow City | AL | — | ◇ UNVERIFIED |
| UMUpchurch Machine Co., INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| UFUp Fabricating CO INC | Manistique | MI | — | ◇ UNVERIFIED |
| UIUpturn Industries, INC. | Bainbridge | NY | — | ◇ UNVERIFIED |
| UTUrgent Tool and Machine, LLC | Coopersville | MI | — | ◇ UNVERIFIED |
| UCUrs Corporation | Casper | WY | — | ◇ UNVERIFIED |
| UIU.s.c.g. Isc San Pedro | San Pedro | CA | — | ◇ UNVERIFIED |
| UCUS Coast Guard Station, Kodiak | Kodiak | AK | — | ◇ UNVERIFIED |
| UDU.s. Dol Osha | York | PA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Andover | Amesbury | MA | — | ◇ UNVERIFIED |
| UDUS Dol Osha- Augusta, Maine Ao | Windham | ME | — | ◇ UNVERIFIED |
| UOUsdol Osha - Cincinnati Area Office | Troy | OH | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Corpus Christi | TX | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Mcallen | TX | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Victoria | TX | — | ◇ UNVERIFIED |
| UOUsdol Osha Lubbock | Merkel | TX | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Mobile | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Theodore | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Atmore | AL | — | ◇ UNVERIFIED |
| UIUS Industrial Sourcing L.l.c. | Henderson | TX | — | ◇ UNVERIFIED |
| UMU.s. Manufacturing Co., LLC | Middleboro | MA | — | ◇ UNVERIFIED |
| UPUS Postal Service | San Mateo | CA | — | ◇ UNVERIFIED |
| USU S Tool & Gauge INC | Paris | TN | — | ◇ UNVERIFIED |
| UMUtech Manufacturing Corporation | Morgan Hill | CA | — | ◇ UNVERIFIED |
| UIUtex Industries Specialty Valves Division | Tomball | TX | — | ◇ UNVERIFIED |
| UCUtility Coatings & Fabrication | West Jordan | UT | — | ◇ UNVERIFIED |
| USUtility Specialized Metals | Sun Valley | CA | — | ◇ UNVERIFIED |
| UMUtmost Machine INC. | Clearfield | PA | — | ◇ UNVERIFIED |
| VCVacant Commercial Building (former Machine Shop) | Wilmington | CA | — | ◇ UNVERIFIED |
| VValco | Huntington Park | CA | — | ◇ UNVERIFIED |
| VMValdez Machining | North Salt Lake | UT | — | ◇ UNVERIFIED |
| VCValley Creek Machine Works, INC. | Valley Grande | AL | — | ◇ UNVERIFIED |
| VMValleyford Metal Crafters LLC | Spokane | WA | — | ◇ UNVERIFIED |
| VMValley Machine Knife | West Springfield | MA | — | ◇ UNVERIFIED |
| VMValley Machine LLC | North Plains | OR | — | ◇ UNVERIFIED |
| VMValley Metal Fab, INC. Dba Valley Welding | Santa Clara | CA | — | ◇ UNVERIFIED |
| VPValley Pump & Machine Works, INC. | Casa Grande | AZ | — | ◇ UNVERIFIED |
| VTValley Tool, Inc. | Appleton | WI | — | ◇ UNVERIFIED |
| VIValmac Industries INC | Vandalia | OH | — | ◇ UNVERIFIED |
| VVVal-matic Valve & Mfg CORP | Addison | IL | — | ◇ UNVERIFIED |
| VLValsource LLC | Port Allen | LA | — | ◇ UNVERIFIED |
| VBValtek Beaumont | Beaumont | TX | — | ◇ UNVERIFIED |
| VIValtra INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| VAValve Accessories & Controls, Inc. | Chelsea | AL | — | ◇ UNVERIFIED |
| VCValve Check INC Webster | Webster Township | MN | — | ◇ UNVERIFIED |
| VAValves and Control Systems, Inc. | South Houston | TX | — | ◇ UNVERIFIED |
| VSValve Solutions, INC. | Alpharetta | GA | — | ◇ UNVERIFIED |
| VUValveworks USA | Waukesha | WI | — | ◇ UNVERIFIED |
| VValvit/linelox | Baton Rouge | LA | — | ◇ UNVERIFIED |
| VMValyrian Machine LLC | Woodhaven | MI | — | ◇ UNVERIFIED |
| VMValyrian Machine LLC | Romulus | MI | — | ◇ UNVERIFIED |
| VAVan Am Tooling and Engineering | Saint Joseph | MO | — | ◇ UNVERIFIED |
| VSVancouver Steel Painters | Vancouver | WA | — | ◇ UNVERIFIED |
| VMVandergrift/ Metals Processing Facility | Vandergrift | PA | — | ◇ UNVERIFIED |
| VAV and L Machine, Inc. | Garden Grove | CA | — | ◇ UNVERIFIED |
| VAV and L Machine, Inc. | Garden Grove | CA | — | ◇ UNVERIFIED |
| VLVanmark, LLC | Virginia Beach | VA | — | ◇ UNVERIFIED |
| VPVan Pelt Precision, INC. | Easthampton | MA | — | ◇ UNVERIFIED |
| VHVanport Holdings, LLC | Beaver (Vanport) | PA | — | ◇ UNVERIFIED |
| VIVanpro INC | Cambridge | MN | — | ◇ UNVERIFIED |
| VTVan Thomas INC. | Rochester | NY | — | ◇ UNVERIFIED |
| VMVarney Manufacturing INC | Medford | OR | — | ◇ UNVERIFIED |
| VIVasco INC | Albert Lea | MN | — | ◇ UNVERIFIED |
| VIVast Industries, LLC | Morgan City | LA | — | ◇ UNVERIFIED |
| VCVector Corporation | Ogden | UT | — | ◇ UNVERIFIED |
| VTVector Tool - Mfg INC | Monticello | MN | — | ◇ UNVERIFIED |
| VLVeeder-root LLC | Tipp City | OH | — | ◇ UNVERIFIED |
| VWVegely Welding INC. | Duquesne | PA | — | ◇ UNVERIFIED |
| VMVeitch Machine Company, INC. | Fairfield | AL | — | ◇ UNVERIFIED |
| VVVelan Valve Corporation | Williston | VT | — | ◇ UNVERIFIED |
| VCVelocity CNC LLC | Stockbridge | MI | — | ◇ UNVERIFIED |
 Velocity Machine, INC. | Green Bay | WI | — | ◇ UNVERIFIED |
| VLVeltre LLC | Gardena | CA | — | ◇ UNVERIFIED |
| VEV Enterprises LLC | Bloomer | WI | — | ◇ UNVERIFIED |
| VVVent-rite Valve Corporation | Randolph | MA | — | ◇ UNVERIFIED |
