| TCTown & Country Sheet Metal, INC. | Shawnee | KS | — | ◇ UNVERIFIED |
| TDTrevi Design Group LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| TBTriangle Brass Manufacturing CO INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| TCTri City Fabricating INC | Kennewick | WA | — | ◇ UNVERIFIED |
| TMTrimac Metal Arts, LLC | Tucson | AZ | — | ◇ UNVERIFIED |
| TTTriple T Holdings, LLC | Bellingham | WA | — | ◇ UNVERIFIED |
| TITrovo INC | Portland | OR | — | ◇ UNVERIFIED |
| TLTrue Line Steel INC | Redmond | OR | — | ◇ UNVERIFIED |
| TFTubular Fabricating Company INC | Birmingham | AL | — | ◇ UNVERIFIED |
| TSTurf Star-hayward | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| TSTwisted Steel | Hurricane | UT | — | ◇ UNVERIFIED |
| TTTw Tanks & Const. Co., INC. | Beeville | TX | — | ◇ UNVERIFIED |
| TMTyson Metal Works | Opelika | AL | — | ◇ UNVERIFIED |
| UIUis INC | Lindon | UT | — | ◇ UNVERIFIED |
| UUUncommon USA INC | Willmar | MN | — | ◇ UNVERIFIED |
| UMUnified Manufacturing INC | Valencia | CA | — | ◇ UNVERIFIED |
| UMUnique Metal Products LLC | Eugene | OR | — | ◇ UNVERIFIED |
| ULUnited Lighting Standards, INC. | Warren | MI | — | ◇ UNVERIFIED |
| UMUnited Misc. & Ornamental Steel, Inc. | Union City | CA | — | ◇ UNVERIFIED |
| UPUnited Partition Systems Inc | Ontario | CA | — | ◇ UNVERIFIED |
| UPUnited Pipe Bending & Fabrication INC | Portland | OR | — | ◇ UNVERIFIED |
| USUnited Spring Technology INC | Farmington Hills | MI | — | ◇ UNVERIFIED |
 Universal Compressor Solutions LLC | Mayfield | KY | — | ◇ UNVERIFIED |
| UIUniversal Iron Works, INC | Pacoima | CA | — | ◇ UNVERIFIED |
| URUniversal Roll Forming INC | Lindon | UT | — | ◇ UNVERIFIED |
| UOUsdol Osha - Tampa Ao | Tampa | FL | — | ◇ UNVERIFIED |
| UIUsg Interiors LLC | Stockton | CA | — | ◇ UNVERIFIED |
| VLVanmark, LLC | Virginia Beach | VA | — | ◇ UNVERIFIED |
| VOVelardes Ornamental Iron | Madera | CA | — | ◇ UNVERIFIED |
| VGV & G Iron Works INC. | Tewksbury | MA | — | ◇ UNVERIFIED |
| VIVictor's Ironworks | San Rafael | CA | — | ◇ UNVERIFIED |
| VSVillage Smithy (former) | Colgate | WI | — | ◇ UNVERIFIED |
| VIVilla Iron Works INC | Sacramento | CA | — | ◇ UNVERIFIED |
| VIV I P Iron Works Inc, Hector Gutierrez | Los Angeles | CA | — | ◇ UNVERIFIED |
| VSVista Steel Company | Goleta | CA | — | ◇ UNVERIFIED |
| VSVista System LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| VFVtr Fence and Gate | Sacramento | CA | — | ◇ UNVERIFIED |
| VPVulcan Products CO | Woodinville | WA | — | ◇ UNVERIFIED |
| WSWa317938457 - Safeworks LLC | Tukwila | WA | — | ◇ UNVERIFIED |
| WCWa317938678 - Craftsmen United INC | Port Townsend | WA | — | ◇ UNVERIFIED |
| WSWa317938913 - Safeworks LLC | Seattle | WA | — | ◇ UNVERIFIED |
| WHWa317939533 - Hydroslice Aerospace LLC | Kent | WA | — | ◇ UNVERIFIED |
| WUWa317941632 - Urban Accessories Incorporated | Tacoma | WA | — | ◇ UNVERIFIED |
| WMWa317943112 - Master Metals LLC | Everett | WA | — | ◇ UNVERIFIED |
| WGWa317943145 - Garcia Hugo | Kennewick | WA | — | ◇ UNVERIFIED |
| WMWa317944016 - Modern Metals LLC | Seattle | WA | — | ◇ UNVERIFIED |
| WMWa317944068 - Modern Metals LLC | Everett | WA | — | ◇ UNVERIFIED |
| WCWa317944936 - Craftsmen United INC | Port Townsend | WA | — | ◇ UNVERIFIED |
| WSWa317945441 - Studio 23 LLC | Olympia | WA | — | ◇ UNVERIFIED |
| WMWa317945702 - Mayer Designs INC | Seattle | WA | — | ◇ UNVERIFIED |
