| TTelsmith | Thiensville | WI | — | ◇ UNVERIFIED |
| TSTemtco Steel INC | Chicago | IL | — | ◇ UNVERIFIED |
| TSTemtco Steel Tumwater | Tumwater | WA | — | ◇ UNVERIFIED |
| TTerex | Huron | SD | — | ◇ UNVERIFIED |
| THTexas Honing INC - North Facility | Houston | TX | — | ◇ UNVERIFIED |
| TTThe Techs - Nextech Plant | Turtle Creek | PA | — | ◇ UNVERIFIED |
| TJThree J's Industries INC | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| TUTimken US CORP Honea Path | Honea Path | SC | — | ◇ UNVERIFIED |
| TTiodize | Huntington Beach | CA | — | ◇ UNVERIFIED |
| TTTip Top Screw | Oscoda | MI | — | ◇ UNVERIFIED |
| TITri-con Industries, LTD. Manufacturing Plant | Lincoln | NE | — | ◇ UNVERIFIED |
| TGTrident Graphics NA LLC | Chester | VA | — | ◇ UNVERIFIED |
| THTrinity Highway Products LLC | Orangeburg | SC | — | ◇ UNVERIFIED |
| TITrinity Inds Head Div #56 | Navasota | TX | — | ◇ UNVERIFIED |
| TITrinity Industries Plant 26 | Fort Worth | TX | — | ◇ UNVERIFIED |
| TTTrinity Tank Car INC Plt 200 | Longview | TX | — | ◇ UNVERIFIED |
| TPTriplex Plating INC. | Michigan City | IN | — | ◇ UNVERIFIED |
| TPTri-state Pole & Piling, INC. | Lucedale | MS | — | ◇ UNVERIFIED |
| TATrw Automotive | Fenton | MI | — | ◇ UNVERIFIED |
| TCTurbine Components Corporation | Branford | CT | — | ◇ UNVERIFIED |
| TITurner Industries Group LLC | Port Allen | LA | — | ◇ UNVERIFIED |
 Tyco Fire Products Lubbock | Lubbock | TX | — | ◇ UNVERIFIED |
| TVTyco Valves & Controls Harlingen | Harlingen | TX | — | ◇ UNVERIFIED |
| UCUnited County Ind Dba County Heat Treat | Millbury | MA | — | ◇ UNVERIFIED |
| UGUnited Galvanizing INC | Houston | TX | — | ◇ UNVERIFIED |
| USUnited States Aluminum | Waxahachie | TX | — | ◇ UNVERIFIED |
| UIUniversal Industrial Sales Incorporated- Galvanizing Facility | Lindon | UT | — | ◇ UNVERIFIED |
| UMUnverferth Manufacturing CO INC | Kalida | OH | — | ◇ UNVERIFIED |
| UDUS Department of the Treasury US Mint Denver | Denver | CO | — | ◇ UNVERIFIED |
| VNVae Nortrak North America | Newton | KS | — | ◇ UNVERIFIED |
| VCValley Chrome Plating INC | Clovis | CA | — | ◇ UNVERIFIED |
| VPValley Plating Works | Conway | AR | — | ◇ UNVERIFIED |
| VCValmont Coatings | West Point | NE | — | ◇ UNVERIFIED |
| VCValmont Coatings INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| VCValmont Coatings Intermountain Galvanizing | Lindon | UT | — | ◇ UNVERIFIED |
| VCValmont Coatings Oklahoma Galvanizing | Claremore | OK | — | ◇ UNVERIFIED |
| VCValmont Columbia Galvanizing INC | West Columbia | SC | — | ◇ UNVERIFIED |
| VNValmont Newmark INC | Columbus | NE | — | ◇ UNVERIFIED |
| VNValmont Newmark/west Hazleton | Hazleton | PA | — | ◇ UNVERIFIED |
| VPValmont Pacific States Galvanizing | Tualatin | OR | — | ◇ UNVERIFIED |
| VMV & M Aerospace LLC | Los Angeles | CA | — | ◇ UNVERIFIED |
| VUVoith US INC | Appleton | WI | — | ◇ UNVERIFIED |
| VCVolvo Const Equip North Amer Llc/shippensburg | Shippensburg | PA | — | ◇ UNVERIFIED |
| VCVorteq Coil Finishers LLC | Woodstock | IL | — | ◇ UNVERIFIED |
| VIVulcan Industries, INC. | Moody | AL | — | ◇ UNVERIFIED |
| WSWalker Stainless Equipment CO | New Lisbon | WI | — | ◇ UNVERIFIED |
| WSWaterbury Screw Machine Products | Waterbury | CT | — | ◇ UNVERIFIED |
| WFWatersaver Faucet CO | Chicago | IL | — | ◇ UNVERIFIED |
| WEWeasler Engineering | Kewaskum | WI | — | ◇ UNVERIFIED |
| WAWeatherford Als LLC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| WWWebb Wheel | Cullman | AL | — | ◇ UNVERIFIED |
| WMWerner Manufacturing Services of Il INC | Crystal Lake | IL | — | ◇ UNVERIFIED |
| WIWesterman INC Bremen Plant (0123000286) | Bremen | OH | — | ◇ UNVERIFIED |
| WCWheelabrator CORP | Lagrange | GA | — | ◇ UNVERIFIED |
| WMWheeling Machine Products Division | Pine Bluff | AR | — | ◇ UNVERIFIED |
| WIWiese Industries INC | Perry | IA | — | ◇ UNVERIFIED |
| WSWisconsin Structural Steel CO | Barronett | WI | — | ◇ UNVERIFIED |
| WEWoods Equipment Company - Cf Division | Kronenwetter | WI | — | ◇ UNVERIFIED |
| WIWoodworth INC. Flint | Flint | MI | — | ◇ UNVERIFIED |
| WAWorld Agritech Corporation-marshall Dr. | Amelia | OH | — | ◇ UNVERIFIED |
| WIWsi Industries | Monticello | MN | — | ◇ UNVERIFIED |
 W&w Afco Steel Girder Shop | San Angelo | TX | — | ◇ UNVERIFIED |
| WCWynright Corporationnp | Hobart | IN | — | ◇ UNVERIFIED |
| XLXaloy, LLC | Austintown, Township of | OH | — | ◇ UNVERIFIED |
| XCXylem Cheektowala | Cheektowaga | NY | — | ◇ UNVERIFIED |
| YIYoungberg Industries INC. | Belvidere | IL | — | ◇ UNVERIFIED |
| YHYoungstown Hard Chrome Plating & Grindin | Youngstown | OH | — | ◇ UNVERIFIED |
| ZIZak INC | Green Island | NY | — | ◇ UNVERIFIED |
| ZSZinkpower Stoughton LLC | Stoughton | WI | — | ◇ UNVERIFIED |
 21 Machine and Fab LLC | Forest | MS | — | ◐ LIKELY ACTIVE |
 478826 Limited | El Dorado Hills | CA | — | ◐ LIKELY ACTIVE |
 4e Ventures LLC | Canyon | TX | — | ◐ LIKELY ACTIVE |
 55 Industries, LLC | Deerfield Beach | FL | — | ◐ LIKELY ACTIVE |
 74 Weld, INC. | El Cajon | CA | — | ◐ LIKELY ACTIVE |
 A & a Custom Automation INC | Evansville | IN | — | ◐ LIKELY ACTIVE |
 Aait Technocraft Scaffold Distribution LLC | Houston | TX | — | ◐ LIKELY ACTIVE |
| AMAbsolute Machining Solutions LLC | Lapwai | ID | — | ◐ LIKELY ACTIVE |
 Accelerated Tooling LLC | Grand Rapids | MI | — | ◐ LIKELY ACTIVE |
 Accessrec LLC | Cedar Grove | NJ | — | ◐ LIKELY ACTIVE |
 Accubeam Laser Marking INC | Sarasota | FL | — | ◐ LIKELY ACTIVE |
 Accuburn of Williamsport, INC | Williamsport | IN | — | ◐ LIKELY ACTIVE |
| AIAccurounds, INC. | Avon | MA | — | ◐ LIKELY ACTIVE |
| AAAce Anodizing, LLC | Tucson | AZ | — | ◐ LIKELY ACTIVE |
 Ace Laser Tek INC | Deerfield | IL | — | ◐ LIKELY ACTIVE |
 Ace Mechanical Fab LLC | Cherry Tree | PA | — | ◐ LIKELY ACTIVE |
 Ace of Diamonds International INC. | Aurora | IL | — | ◐ LIKELY ACTIVE |
 Ace Packaging LLC | Union Springs | AL | — | ◐ LIKELY ACTIVE |
 Acme Machine and Welding, L.l.c. | Franklinton | LA | — | ◐ LIKELY ACTIVE |
 Active Solutions, L.l.c | Chandler | AZ | — | ◐ LIKELY ACTIVE |
 Act Test Panels LLC | Hillsdale | MI | — | ◐ LIKELY ACTIVE |
 Additive Manufacturing & Engineering, INC. | Huntsville | AL | — | ◐ LIKELY ACTIVE |
| AMAdvanced Machining & Sheetmetal Design, L.l.c | Albuquerque | NM | — | ◐ LIKELY ACTIVE |
 Advanced Piping Products Incorporated | Houston | TX | — | ◐ LIKELY ACTIVE |
 Advanced Therapy Products, INC. | Henrico | VA | — | ◐ LIKELY ACTIVE |
| AIAdvance Industrial Manufacturing | Grove City | OH | 20–99 | ◐ LIKELY ACTIVE |
| AMAdvance Mfg.co., INC. | Westfield | MA | 100–499 | ▲ REPORTED CLOSED |
 Aei Fabrication, LLC | Mesa | AZ | — | ◐ LIKELY ACTIVE |
 Aereos, INC. | Euless | TX | — | ◐ LIKELY ACTIVE |
| AAAero Apmc INC | Franklin Park | IL | — | ◐ LIKELY ACTIVE |
| AIAerodef Innovatec LLC | Mooresville | NC | — | ◐ LIKELY ACTIVE |
