| TSTurnkey-Industrial Services LLC | West Unity | OH | — | ◇ UNVERIFIED |
| TPTyler Pipe CO | Tyler | TX | — | ◇ UNVERIFIED |
| UPUlrich Process Piping, LLC | Greensboro | NC | — | ◇ UNVERIFIED |
| UPUltra Premium Oilfield Services | Odessa | TX | — | ◇ UNVERIFIED |
| UPUnderground Products, Inc. | Houston | TX | — | ◇ UNVERIFIED |
| UEUnion Electric Akers | Avonmore | PA | — | ◇ UNVERIFIED |
| UBUnited Bakery Equipment | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| UCUnited Casing Tubular Services | Midland | TX | — | ◇ UNVERIFIED |
| UCUnited Casing Tubular Services Sheldon Road | Houston | TX | — | ◇ UNVERIFIED |
 United Fiberglass of America INC (0812100565) | Springfield | OH | — | ◇ UNVERIFIED |
| USUnited Sprinkler INC | Rush City | MN | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company Dba U.s. Pi | Union City | CA | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company LLC | Rogers | MN | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company, LLC | — | IL | — | ◇ UNVERIFIED |
| USUnited States Pipe & Foundry Company LLC | Naperville | IL | — | ◇ UNVERIFIED |
| UTUnited Tube Bending | Montclair | CA | — | ◇ UNVERIFIED |
| UCUnivex CORP | Salem | NH | — | ◇ UNVERIFIED |
 Urschel Laboratories, INC. | Valparaiso | IN | — | ◇ UNVERIFIED |
| UDU.s. Department of Labor-osha | Red Bud | IL | — | ◇ UNVERIFIED |
| UOUsdol Osha | Cleveland | TX | — | ◇ UNVERIFIED |
| UDUS Dol Osha Fort Lauderdale Ao | Medley | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Phenix City | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha- North Aurora | South Beloit | IL | — | ◇ UNVERIFIED |
| UOUsdol Osha- North Aurora | Galena | IL | — | ◇ UNVERIFIED |
| ULUse Lawrence South | Lawrence | KS | — | ◇ UNVERIFIED |
| USU S Foundry & Manufacturing | Tampa | FL | — | ◇ UNVERIFIED |
| UCUsg Ceilings Plus LLC | Commerce | CA | — | ◇ UNVERIFIED |
| ULUS Lock & Hdwr Co/columbia | Columbia | PA | — | ◇ UNVERIFIED |
| UHUsp Holdings INC | Warren | OR | — | ◇ UNVERIFIED |
| UPU.s. Pipe | San Antonio | TX | — | ◇ UNVERIFIED |
| UPUS Pipe | Union City | CA | — | ◇ UNVERIFIED |
| UPUS Pipe and Fabrication | Marysville | CA | — | ◇ UNVERIFIED |
| UPU.s. Pipe Fabrication | Olivehurst | CA | — | ◇ UNVERIFIED |
| UPU.s. Pipe Fabrication | San Antonio | TX | — | ◇ UNVERIFIED |
| UPUS Pipe Fabrication | Fontana | CA | — | ◇ UNVERIFIED |
| UPUS Pipe & Foundry CO | Birmingham | AL | — | ◇ UNVERIFIED |
| USU S Pipe & Foundry Company INC | Burlington Township | NJ | — | ◇ UNVERIFIED |
| USUS Steel - Ambridge | Ambridge | PA | — | ◇ UNVERIFIED |
| USU S Steel Oilwell Services Wheeling Machine Produc | Houston | TX | — | ◇ UNVERIFIED |
| VVValley / Vulcan Mold CO | Trenton | MI | — | ◇ UNVERIFIED |
| VTVallourec Tube Alloy | Houston | TX | — | ◇ UNVERIFIED |
| VTVallourec Tube Alloy | Houston | TX | — | ◇ UNVERIFIED |
| VUVam USA Miller Rd | Houston | TX | — | ◇ UNVERIFIED |
| VHVanessa House Beer Company | Oklahoma City | OK | — | ◇ UNVERIFIED |
| VPVan Pelt Industries, LLC | Grand Haven | MI | — | ◇ UNVERIFIED |
| VCVanwin CORP | Kaukauna | WI | — | ◇ UNVERIFIED |
| VIVaricast INC | Vancouver | WA | — | ◇ UNVERIFIED |
| VIVermilion Iron Works | Hoopeston | IL | — | ◇ UNVERIFIED |
| VCVermont Castings | Randolph | VT | — | ◇ UNVERIFIED |
| VEVermont Evaporator Company, LLC | Montpelier | VT | — | ◇ UNVERIFIED |
| VTVermont Tap Handle Company LLC | Milton | VT | — | ◇ UNVERIFIED |
| VMVersum Materials US LLC | Allentown | PA | — | ◇ UNVERIFIED |
| VFVestco Food Equipment | Escondido | CA | — | ◇ UNVERIFIED |
| VAVictaulic Atlanta Manufacturing | Duluth | GA | — | ◇ UNVERIFIED |
| VCVictaulic CO Amer/allentown Facility | Allentown | PA | — | ◇ UNVERIFIED |
| VCVictaulic Co/lawrenceville Plt | Tioga | PA | — | ◇ UNVERIFIED |
| VLViega LLC | Mantua | OH | — | ◇ UNVERIFIED |
| VFViking Fabrication Service INC | Riverside | CA | — | ◇ UNVERIFIED |
| VPViking Pump Inc-alloys Foundry | Cedar Falls | IA | — | ◇ UNVERIFIED |
| VMVilter Manufacturing Corporation - Milwaukee | Milwaukee | WI | — | ◇ UNVERIFIED |
| VEViper Engineering & Manufacturing LLC | Lodi | WI | — | ◇ UNVERIFIED |
| VMVirginia Metalcrafters INC | Waynesboro | VA | — | ◇ UNVERIFIED |
| WMWa317943601 - Mackenzie Castings LLC | Arlington | WA | — | ◇ UNVERIFIED |
| WDWa317945207 - D&l Foundry INC | Moses Lake | WA | — | ◇ UNVERIFIED |
| WRWa317947852 - Raceways Technology & Mfg CO | Tacoma | WA | — | ◇ UNVERIFIED |
| WSWachs Subsea LLC | Houston | TX | — | ◇ UNVERIFIED |
| WSWachs Subsea, LLC | Houston | TX | — | ◇ UNVERIFIED |
| WMWalker Machine and Foundry | Roanoke | VA | — | ◇ UNVERIFIED |
| WKWalter Kidde Portable Equipment | Mebane | NC | — | ◇ UNVERIFIED |
| WMWard Manufacturing, LLC | Blossburg | PA | — | ◇ UNVERIFIED |
| WFWasser Filtration Inc., Dba Pacific Pres | Anaheim | CA | — | ◇ UNVERIFIED |
| WMWaste Management - Fairbanks Landfill | Houston | TX | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing Company | Alexandria | LA | — | ◇ UNVERIFIED |
| WFWaterman Foundry | Exeter | CA | — | ◇ UNVERIFIED |
| WFWatsontown Foundry | Watsontown | PA | — | ◇ UNVERIFIED |
| WRWatts Regulator Company | Woodland | CA | — | ◇ UNVERIFIED |
| WAWaunakee Alloy Casting Corporation | Waunakee | WI | — | ◇ UNVERIFIED |
 Waupaca Foundry | Tell City | IN | — | ◇ UNVERIFIED |
| Waupaca Foundry INC. | Tioga | PA | — | ◇ UNVERIFIED |
| Waupaca Foundry INC Warehouse | Waupaca | WI | — | ◇ UNVERIFIED |
| Waupaca Foundry Landfill | Waupaca | WI | — | ◇ UNVERIFIED |
| WPWc Precision INC. | Buena Park | CA | — | ◇ UNVERIFIED |
| WWelaco | Bakersfield | CA | — | ◇ UNVERIFIED |
| WLWeldsource LLC | Cypress | TX | — | ◇ UNVERIFIED |
| WMWells Manufacturing CO | Verdi | NV | — | ◇ UNVERIFIED |
| WCWesgo Ceramics | Belmont | CA | — | ◇ UNVERIFIED |
| WCWest Coast Fire Protection Systems Co., INC. | Auburn | CA | — | ◇ UNVERIFIED |
| WCWest Coast Pipe Inspection Incorporated | Shafter | CA | — | ◇ UNVERIFIED |
| WCWestern Castings Company | Santa Clara | CA | — | ◇ UNVERIFIED |
| WMWestern Metals Recycling, LLC | Pueblo | CO | — | ◇ UNVERIFIED |
| WSWest Salisbury Found/west Salisbury Plt | West Salisbury | PA | — | ◇ UNVERIFIED |
| WFWestwick Foundry LTD | Galena | IL | — | ◇ UNVERIFIED |
| WGWgs Global Services L C | Etowah | TN | — | ◇ UNVERIFIED |
| WCWheelabrator Cast Product | Walterboro | SC | — | ◇ UNVERIFIED |
| WMWheeling Machine Pine Bluff | White Hall | AR | — | ◇ UNVERIFIED |
| WIWh Industries Delaware, INC. | Jacksonville | AL | — | ◇ UNVERIFIED |
| WPWhitley Products, INC. | Plymouth | IN | — | ◇ UNVERIFIED |
| WCWhitman Casting INC | Whitman | MA | — | ◇ UNVERIFIED |
| WFWilliamsport Foundry Co/williamsport | Williamsport | PA | — | ◇ UNVERIFIED |
| WEWinn Engineering | Anaheim | CA | — | ◇ UNVERIFIED |
