| UOUsdol Osha - (mobile) | Theodore | AL | — | ◇ UNVERIFIED |
| UDUS Duct, INC. | Kernersville | NC | — | ◇ UNVERIFIED |
| UMUS Mat Systems LLC | Mcminnville | OR | — | ◇ UNVERIFIED |
| UOUtility Optimization Group LLC | Moss Point | MS | — | ◇ UNVERIFIED |
| UOUtility Optimization Group LLC | Pascagoula | MS | — | ◇ UNVERIFIED |
| VIValmont Industries INC | Salem | OR | — | ◇ UNVERIFIED |
| VIVan Industries INC | Birdsboro | PA | — | ◇ UNVERIFIED |
| VMVernier Metal Fabricating, Inc. | Seymour | CT | — | ◇ UNVERIFIED |
| VHV & H Fabrication and Repairs, INC. | Jeanerette | LA | — | ◇ UNVERIFIED |
| VMVictory Metal, LLC | Elkhorn City | KY | — | ◇ UNVERIFIED |
| VTVirginia Transformer CORP | Roanoke | VA | — | ◇ UNVERIFIED |
| VPVme Process | Tyler | TX | — | ◇ UNVERIFIED |
| VFVons Fuel Center #2344 | Escondido | CA | — | ◇ UNVERIFIED |
| WNWa317938011 - Naimor INC | Redmond | WA | — | ◇ UNVERIFIED |
| WSWa317947773 - Steel River Piping & Fabrication LLC | Ferndale | WA | — | ◇ UNVERIFIED |
| WSWa317950818 - Spitzer William | Woodland | WA | — | ◇ UNVERIFIED |
| WPWagner Plate Works, LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| WWWagnerplate Works West | Paramount | CA | — | ◇ UNVERIFIED |
| WMWalker Metal Works LLC | Abingdon | VA | — | ◇ UNVERIFIED |
| WLWalter Long Manufacturing Co., INC. | Finleyville | PA | — | ◇ UNVERIFIED |
| WMWaste Management of Wisconsin, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| WLWastequip Lm Industries Greer Plant | Greer | SC | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing | Beeville | TX | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing Accurate Industries INC | Erial | NJ | — | ◇ UNVERIFIED |
 Wastequip Manufacturing CO LLC | East Saint Louis | IL | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing Company, Dba May Fab | Brookhaven | MS | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing Company LLC | Williamstown | NJ | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing Company LLC | Rosemount | MN | — | ◇ UNVERIFIED |
| WHWater Haus Waterjet, Inc. | Lockport | NY | — | ◇ UNVERIFIED |
 Waterjet Cutting Solutions INC | Blaine | MN | — | ◇ UNVERIFIED |
| WWWayne's Welding Service | Monahans | TX | — | ◇ UNVERIFIED |
| WHWCSI Holdings, LLC | Blaine | MN | — | ◇ UNVERIFIED |
| WDW & D Sheet Metal INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| WCWear Concepts LLC | Liberty | MO | — | ◇ UNVERIFIED |
| WLWehold LLC | Cedar City | UT | — | ◇ UNVERIFIED |
| WPWelser Profile North America LLC | Valley City | OH | — | ◇ UNVERIFIED |
| WCWerner Company Louisville | Louisville | KY | — | ◇ UNVERIFIED |
| WIWes Industries INC. | Sarasota | FL | — | ◇ UNVERIFIED |
| WCWesmor Cryogenics, LLC | La Porte | TX | — | ◇ UNVERIFIED |
| WCWest Coast Equipment | Turlock | CA | — | ◇ UNVERIFIED |
| WCWestern Coating, INC. | Eugene | OR | — | ◇ UNVERIFIED |
| WMWestern Metal Specialty | Milwaukee | WI | — | ◇ UNVERIFIED |
| WIWestmor Industries LLC - Truck Shop | Morris | MN | — | ◇ UNVERIFIED |
| WEWheelabrator Energy Systems | Sturbridge | MA | — | ◇ UNVERIFIED |
| WCWheeling Corrugating CO | Gary | IN | — | ◇ UNVERIFIED |
| WRWiegmann & Rose | Oakland | CA | — | ◇ UNVERIFIED |
| WMWilco Mach and Fabrication INC / Nov Wilco North | Marlow | OK | — | ◇ UNVERIFIED |
| WDWilliams & Davis Boilers | Hutchins | TX | — | ◇ UNVERIFIED |
| WFWilliamstown Fabricators INC | Parkersburg | WV | — | ◇ UNVERIFIED |
| WIW Industries | Detroit | MI | — | ◇ UNVERIFIED |
| WSWireless Structures Consulting INC | Salem | OR | — | ◇ UNVERIFIED |
| WCWizard Control Systems INC | Salem | OR | — | ◇ UNVERIFIED |
| WHWl Hall Company | Hopkins | MN | — | ◇ UNVERIFIED |
| WTWorldwide Technologies Expansion | Franklin | KY | — | ◇ UNVERIFIED |
| WSWorthington Steelpac (0511005008) | North Lewisburg | OH | — | ◇ UNVERIFIED |
| WIWps Industries INC | West Monroe | LA | — | ◇ UNVERIFIED |
| WMWyoming Machinery Company | Casper | WY | — | ◇ UNVERIFIED |
| ZMZachry Moss Point Fabrication Facility | Moss Point | MS | — | ◇ UNVERIFIED |
| ZBZierke Built Manufacturing INC | Winnebago | MN | — | ◇ UNVERIFIED |
| ZLZjjc, LLC | Yorktown | VA | — | ◇ UNVERIFIED |
