| UDUniversal Dust Collector Mfg & Supply CORP Dba Udc Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| UFUniversal Fabricators INC | Madison Heights | MI | — | ◇ UNVERIFIED |
| USUniversal Sheetmetal INC | Woodinville | WA | — | ◇ UNVERIFIED |
| UCUnivex CORP | Salem | NH | — | ◇ UNVERIFIED |
| UIUnlimited Image INC | Burnsville | MN | — | ◇ UNVERIFIED |
| USUpcycle Solutions, Inc. | Londonderry | NH | — | ◇ UNVERIFIED |
| USUpton Sheet Metal, Inc. | Anaheim | CA | — | ◇ UNVERIFIED |
 Urschel Laboratories, INC. | Valparaiso | IN | — | ◇ UNVERIFIED |
| UCUS Chemical Storage Plant 2 | Wilkesboro | NC | — | ◇ UNVERIFIED |
| UDU.s. Dol Osha | York Haven | PA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Rossville | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Marietta | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Dalton | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Rome | GA | — | ◇ UNVERIFIED |
| UDUS Dol Osha Bridgeport | Madison | CT | — | ◇ UNVERIFIED |
| UOUsdol Osha - Ft. Lauderdale Ao | Hialeah | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha - Ft. Lauderdale Ao | Homestead | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Geneva | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha- North Aurora | Lombard | IL | — | ◇ UNVERIFIED |
| USUtah Sheet Metal LLC | Orem | UT | — | ◇ UNVERIFIED |
| VSValencia Sheet Metal, INC. | Pacoima | CA | — | ◇ UNVERIFIED |
| VCValley Custom Iron Works LLC | Harlingen | TX | — | ◇ UNVERIFIED |
| VSValley Sheetmetal & fabrication LLC | Cheyenne | WY | — | ◇ UNVERIFIED |
| VSValley Stainless Incorporated | Eugene | OR | — | ◇ UNVERIFIED |
| VWValley Welding & Fabrication, INC. | Hollis | NH | — | ◇ UNVERIFIED |
| VHVanessa House Beer Company | Oklahoma City | OK | — | ◇ UNVERIFIED |
| VCVanguard Custom LLC | Wichita | KS | — | ◇ UNVERIFIED |
| VMVanguard Metal Craft LLC | West Chicago | IL | — | ◇ UNVERIFIED |
| VMVardan Mouradyan & George Vartan | Los Angeles (NORTH HOLLYWOOD area) | CA | — | ◇ UNVERIFIED |
| VSVasq Sheetmetal, LLC | Arlington | TX | — | ◇ UNVERIFIED |
| VSVenture Steel | Bayamon | PR | — | ◇ UNVERIFIED |
| VDVerco Decking INC | Antioch | CA | — | ◇ UNVERIFIED |
| VEVermont Evaporator Company, LLC | Montpelier | VT | — | ◇ UNVERIFIED |
| VTVermont Tap Handle Company LLC | Milton | VT | — | ◇ UNVERIFIED |
| VFVestco Food Equipment | Escondido | CA | — | ◇ UNVERIFIED |
| VEViper Engineering & Manufacturing LLC | Lodi | WI | — | ◇ UNVERIFIED |
| VIVista Industrial Products | Vista | CA | — | ◇ UNVERIFIED |
| VMVista Manufacturing Company | Kansas City | KS | — | ◇ UNVERIFIED |
| VFVortex Fab | Salina | KS | — | ◇ UNVERIFIED |
| VRV & R Sheetmetal LLC | Seattle | WA | — | ◇ UNVERIFIED |
| VSVts Sheetmetal Specialist CO | Anaheim | CA | — | ◇ UNVERIFIED |
| WKWa317935900 - Krueger Sheet Metal CO | Spokane | WA | — | ◇ UNVERIFIED |
| WSWa317936600 - Steeler INC | Seattle | WA | — | ◇ UNVERIFIED |
| WIWa317937804 - Industrial Fabrication CO | Sultan | WA | — | ◇ UNVERIFIED |
| WCWa317938017 - Cp Sheet Metals INC | Lynnwood | WA | — | ◇ UNVERIFIED |
| WAWa317939233 - Alutek INC | Spokane | WA | — | ◇ UNVERIFIED |
| WJWa317939881 - J S Vail LLC | East Wenatchee | WA | — | ◇ UNVERIFIED |
| WSWa317940229 - Sytech INC | Spokane | WA | — | ◇ UNVERIFIED |
| WRWa317941069 - Rolled Steel Products INC | Spokane | WA | — | ◇ UNVERIFIED |
| WKWa317943762 - Krueger Sheet Metal CO | Spokane Valley | WA | — | ◇ UNVERIFIED |
| WSWa317944086 - Steeler INC | Seattle | WA | — | ◇ UNVERIFIED |
| WAWa317944466 - Accurate Sheet Metal INC | Mukilteo | WA | — | ◇ UNVERIFIED |
| WFWa317944606 - Farwest Fabricators INC | Moxee | WA | — | ◇ UNVERIFIED |
| WEWa317946916 - Ecb CORP | Everett | WA | — | ◇ UNVERIFIED |
| WVWa317947288 - V & R Sheetmetal LLC | Bremerton | WA | — | ◇ UNVERIFIED |
| WNWa317947585 - N a I INC | Union Gap | WA | — | ◇ UNVERIFIED |
| WNWa317947768 - Nu Ray Metal Products INC | Auburn | WA | — | ◇ UNVERIFIED |
| WAWa317948222 - All American Metal Products INC | Ferndale | WA | — | ◇ UNVERIFIED |
| WJWa317948573 - J S Vail LLC | Wenatchee | WA | — | ◇ UNVERIFIED |
| WRWa317949237 - Roofing Services INC | Mount Vernon | WA | — | ◇ UNVERIFIED |
| WVWa317949370 - V & R Sheetmetal LLC | Edmonds | WA | — | ◇ UNVERIFIED |
| WVWa317950080 - V & R Sheetmetal LLC | Tacoma | WA | — | ◇ UNVERIFIED |
| WTWa317950193 - Taylor Metal INC | Woodinville | WA | — | ◇ UNVERIFIED |
| WVWa317950373 - V & R Sheetmetal LLC | Yelm | WA | — | ◇ UNVERIFIED |
| WPWalt Palmer Supply INC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| WIWarden's Inc. | Tempe | AZ | — | ◇ UNVERIFIED |
| WIWare Industries, INC. | Griffin | GA | — | ◇ UNVERIFIED |
| WLWasatch Laser Processing, INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| WKWaste King | Los Angeles | CA | — | ◇ UNVERIFIED |
| WSWayne Sheet Metal and Fabrication, LLC. | Jesup | GA | — | ◇ UNVERIFIED |
| WBWc Brown Welding INC | Rialto | CA | — | ◇ UNVERIFIED |
| WTWeather Tite Industries INC | Watertown | TN | — | ◇ UNVERIFIED |
| WSWeeks Sheet Metal | Dothan | AL | — | ◇ UNVERIFIED |
| WEW E Hall CO | Eugene | OR | — | ◇ UNVERIFIED |
| WEWeiser Engineering/mile High Precision INC. | Northglenn | CO | — | ◇ UNVERIFIED |
| WSWeiss Sheet Metal,inc. | Avon | MA | — | ◇ UNVERIFIED |
| WRWelaka Real Estate Holdings, LLC | Welaka | FL | — | ◇ UNVERIFIED |
| WSWelded Sheet Metal Manufacturing, LLC | Pittsburgh | PA | — | ◇ UNVERIFIED |
| WMWeldmac Mfg CO | El Cajon | CA | — | ◇ UNVERIFIED |
| WMWells Manufacturing CO | Verdi | NV | — | ◇ UNVERIFIED |
| WMWe-mac Manufacturing CO | Atchison | KS | — | ◇ UNVERIFIED |
| WCWest Central Metal Fab INC | Alexandria | MN | — | ◇ UNVERIFIED |
| WCWest Coast Fab, INC | Richmond | CA | — | ◇ UNVERIFIED |
| WCWest Coast Fabrication INC | Central Point | OR | — | ◇ UNVERIFIED |
| WMWestcoast Metal Fab INC | Scio | OR | — | ◇ UNVERIFIED |
| WCWest Coast Steel & Processing Dba Great Pacific Elbow | Chino | CA | — | ◇ UNVERIFIED |
| WCWest Coast Steel & Processing, LLC | Chino | CA | — | ◇ UNVERIFIED |
| WMWestern Metal Lath & Steel Framing System | Riverside | CA | — | ◇ UNVERIFIED |
| WVWestern Vents & Curbs | Gilbert | AZ | — | ◇ UNVERIFIED |
| WMWestfab Manufacturing, Inc. | Santa Clara | CA | — | ◇ UNVERIFIED |
| WSWest Side Fabrication, LLC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| WPWhitesell Precision Components INC | Watson | IN | — | ◇ UNVERIFIED |
| WSWholesale Sheet Metal INC. | Kansas City | KS | — | ◇ UNVERIFIED |
| WRWilliam R Tiffany & Linda E Tiffany | Vale | OR | — | ◇ UNVERIFIED |
| WFWilliams Fabrication, INC. Dba Jenfab | Covington | VA | — | ◇ UNVERIFIED |
| WRWilson Railing & Metal Fabricating Company | Park City | IL | — | ◇ UNVERIFIED |
| WRWinding Roofing Company INC. | Wauwatosa | WI | — | ◇ UNVERIFIED |
| WHWinona Heating - Ventilating Company | Winona | MN | — | ◇ UNVERIFIED |
| WIWinston Industries, INC. | Ivyland | PA | — | ◇ UNVERIFIED |
| WMWonder Metals Corporation | Redding | CA | — | ◇ UNVERIFIED |
