| TSThe Service Manufacturing Group, Inc. | Cheektowaga | NY | — | ◇ UNVERIFIED |
| TSThe Sterling Blower CO INC | Forest | VA | — | ◇ UNVERIFIED |
| TTThe Tinners Shoppe, LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| TCThomas Company | Egg Harbor City | NJ | — | ◇ UNVERIFIED |
| TEThomas Edwards Dba Olympic Industries | Cordova | TN | — | ◇ UNVERIFIED |
| THThomas H. George, Jr. | Sand City | CA | — | ◇ UNVERIFIED |
| TIThomas Industries INC | Wabasha | MN | — | ◇ UNVERIFIED |
| TPThomas Processing LLC | Elgin | IL | — | ◇ UNVERIFIED |
| TMThriller Manufacturing | Salt Lake City | UT | — | ◇ UNVERIFIED |
| TThyssenkrupp | Marietta | GA | — | ◇ UNVERIFIED |
| TDTie Down Engineering, INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| TSTinco Sheet Metal Contractors | Irvine | CA | — | ◇ UNVERIFIED |
| TSTinco Sheet Metal, INC. | Mission Viejo | CA | — | ◇ UNVERIFIED |
| TSTin-man Supply | Olathe | KS | — | ◇ UNVERIFIED |
| TTTip Top Sheet Metal, INC | Houston | TX | — | ◇ UNVERIFIED |
| TSTitan Sheet Metal, INC. | Costa Mesa | CA | — | ◇ UNVERIFIED |
| TITks Industrial Company | Marysville | OH | — | ◇ UNVERIFIED |
| TRTl Roofing and Sheet Metal | Old Westbury | NY | — | ◇ UNVERIFIED |
 Tmd Enterprises INC Dba Millw | Freeport | MN | — | ◇ UNVERIFIED |
| TITodrin Industries, INC. | Lakeville | MA | — | ◇ UNVERIFIED |
| TMTomsicek Manufacturing CO | Ithaca | NE | — | ◇ UNVERIFIED |
| TITonnage Industrial LLC | Long Beach | CA | — | ◇ UNVERIFIED |
| TITonnage Industrial LLC | Long Beach | CA | — | ◇ UNVERIFIED |
| TITonnage Industrial LLC | Long Beach | CA | — | ◇ UNVERIFIED |
| TDTool & Die Systems Incorporated | North Ridgeville | OH | — | ◇ UNVERIFIED |
| TNTop Notch Metal Products, LLC | Sacramento | CA | — | ◇ UNVERIFIED |
| TCTotal Comfort Solutions, Inc. | Philadelphia | PA | — | ◇ UNVERIFIED |
| TSTougher Sheet & Steel, INC. | Danvers | MA | — | ◇ UNVERIFIED |
| THTower Hill Corporation | Manassas | VA | — | ◇ UNVERIFIED |
| TCTown & Country, INC. | Shawnee | KS | — | ◇ UNVERIFIED |
| TFTpi Fabrication | Bowdon | GA | — | ◇ UNVERIFIED |
| TITracker Industries INC | Spring Valley | MN | — | ◇ UNVERIFIED |
| TMTramont Manufacturing LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| TPTrampoline Parks LLC | Ogden | UT | — | ◇ UNVERIFIED |
| TCTreasure Coast Sheet Metal, INC. | Palm City | FL | — | ◇ UNVERIFIED |
| TVTreasure Valley Steel INC | Ontario | OR | — | ◇ UNVERIFIED |
| TVTreasure Valley Steel INC | Ontario | OR | — | ◇ UNVERIFIED |
| TTTrend Technologies LLC | Chino | CA | — | ◇ UNVERIFIED |
| TTTrend Technologies LLC | Chino | CA | — | ◇ UNVERIFIED |
| TUTricorn Usa, INC. | Rabun Gap | GA | — | ◇ UNVERIFIED |
| TPTrident Precision Manufacturing | Webster | NY | — | ◇ UNVERIFIED |
| TSTrieb Sheet Metal CO. | Kansas City | KS | — | ◇ UNVERIFIED |
| TDTri-eisc Dba Dampers Express LLC | Louisville | KY | — | ◇ UNVERIFIED |
| TFTri-metal Fabrication INC | Plainview | NY | — | ◇ UNVERIFIED |
| TSTrinity Sheet Metal Inc. | Albion | IN | — | ◇ UNVERIFIED |
| TTTrio Tool & Die Co. | Redondo Beach | CA | — | ◇ UNVERIFIED |
| TSTriple S Steel Supply CO | Salt Lake City | UT | — | ◇ UNVERIFIED |
| TRTri-state Roofing & Sheet Metal | Davisville | WV | — | ◇ UNVERIFIED |
| TSTri-state Sheetmetal, INC. | Keokuk | IA | — | ◇ UNVERIFIED |
| TFTriumph Fabrications - San Diego | El Cajon | CA | — | ◇ UNVERIFIED |
| TITrs Industries INC | Escondido | CA | — | ◇ UNVERIFIED |
| TITru-Duct, Inc. | Oceanside | CA | — | ◇ UNVERIFIED |
| TDTru Duct INC | Spring Valley | CA | — | ◇ UNVERIFIED |
| TFTrue Fab, LLC | Gonzales | LA | — | ◇ UNVERIFIED |
| TNTrue North Steel, INC. | Fargo | ND | — | ◇ UNVERIFIED |
| TTT Taketa Sheet Metal INC | Kailua | HI | — | ◇ UNVERIFIED |
| TATucson Awning & Screen, L.l.c. | Tucson | AZ | — | ◇ UNVERIFIED |
| TITurner Industries INC. | Chippewa Falls | WI | — | ◇ UNVERIFIED |
| TRTwickler, Raymond Roofing & Shet Metal, INC. | New Orleans | LA | — | ◇ UNVERIFIED |
| TCTwin City Metalfab INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| TCTwin City Metalfab INC | Delano | MN | — | ◇ UNVERIFIED |
| TLTyphan-omni, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| TFTyson Farms, INC. | Wilkesboro | NC | — | ◇ UNVERIFIED |
| UIU-build-it-center, INC. Dba Snake River Metal | Filer | ID | — | ◇ UNVERIFIED |
| UCUdc Corporation | Camp Pendleton | CA | — | ◇ UNVERIFIED |
| UCUnifab Corporation | Kalamazoo | MI | — | ◇ UNVERIFIED |
| UCUnion Corrugating | Ocala | FL | — | ◇ UNVERIFIED |
| UIUnison Industries LLC Plant 2 | Dayton | OH | — | ◇ UNVERIFIED |
| ULUnitech Lc | Salt Lake City | UT | — | ◇ UNVERIFIED |
| UBUnited Best Sheet Metal | Arcadia | CA | — | ◇ UNVERIFIED |
| UFUnited Fabrication | Salt Lake City | UT | — | ◇ UNVERIFIED |
| UMUnited Metal Services | Houston | TX | — | ◇ UNVERIFIED |
| USUnited Support Solutions INC. | Totowa | NJ | — | ◇ UNVERIFIED |
| UTUnited Team Mechanical, LLC | Kaysville | UT | — | ◇ UNVERIFIED |
| UWUnited Weld Services, LLC | York | PA | — | ◇ UNVERIFIED |
| 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 |
| UIUnlimited Image INC | Burnsville | MN | — | ◇ UNVERIFIED |
| USUpcycle Solutions, Inc. | Londonderry | NH | — | ◇ UNVERIFIED |
| USUpton Sheet Metal, Inc. | Anaheim | CA | — | ◇ 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 |
| VCVanguard Custom LLC | Wichita | KS | — | ◇ UNVERIFIED |
| VMVanguard Metal Craft LLC | West Chicago | IL | — | ◇ UNVERIFIED |
