| TWT - W Valve and Machine Company | Southport | IN | — | ◇ UNVERIFIED |
| TSTX Shade Sails, LLC | Irving | TX | — | ◇ UNVERIFIED |
| TFTyco Fire & Building Products | Lubbock | TX | — | ◇ UNVERIFIED |
| TMTYCO Metal Works, LLC | Mesa | AZ | — | ◇ UNVERIFIED |
| TFTycoon Fabrication LLC | Seneca | SC | — | ◇ UNVERIFIED |
| TCTyler Camera Systems | Van Nuys | CA | — | ◇ UNVERIFIED |
| TPTyler Pipe CO | Tyler | TX | — | ◇ UNVERIFIED |
| TPTyler Production, INC. | Arkansas City | KS | — | ◇ UNVERIFIED |
| USUav Solutions, INC. | Jessup | MD | — | ◇ UNVERIFIED |
| UPUcx Properties, LLC | Cleveland | OH | — | ◇ UNVERIFIED |
| UMUff Machine Company | Kennedyville | MD | — | ◇ UNVERIFIED |
| UMUlrich Machine Works LLC | Bristow | OK | — | ◇ UNVERIFIED |
| UMUlseth Machining & Manufacturing, INC. | Bradford | TN | — | ◇ UNVERIFIED |
| UIUltra Industries INC | Wyoming | MN | — | ◇ UNVERIFIED |
| UMUltra Machining Company | Monticello | MN | — | ◇ UNVERIFIED |
| USUltra Sonic Deburring of N Ca INC Dba Coast Metal Cutting | Redwood City | CA | — | ◇ UNVERIFIED |
| USUltra Specialties Incorporated | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| UTUltra Tool and Manufacturing, Inc. | Rochester | NY | — | ◇ UNVERIFIED |
| UTUltra Tool Company LLC | Howell | MI | — | ◇ UNVERIFIED |
| UPUnder Pressure Systems LLC | New Philadelphia | OH | — | ◇ UNVERIFIED |
| UIUneeda Iron & Sandblasting INC | Mukwonago | WI | — | ◇ UNVERIFIED |
| UIUni-American Investment Group, LLC | Sugar Land | TX | — | ◇ UNVERIFIED |
| UIUni-fab Industries INC | Milpitas | CA | — | ◇ UNVERIFIED |
| UIUni-fab Industries INC | Fremont | CA | — | ◇ UNVERIFIED |
| UDUnified Design & Manufacturing, INC. | Alabaster | AL | — | ◇ UNVERIFIED |
| UDUnified Designs and Manufacturing | Alabaster | AL | — | ◇ UNVERIFIED |
| USUnified Screen and Crushing - Wisconsin, INC. | New Richmond | WI | — | ◇ UNVERIFIED |
| USUnified Screening & Crushing | Salt Lake City | UT | — | ◇ UNVERIFIED |
| UIUnimatic INC | Saint Louis Park | MN | — | ◇ UNVERIFIED |
| UIUnimatic INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| UEUnion Electric Akers | Avonmore | PA | — | ◇ UNVERIFIED |
| UOUniparts Olsen, INC. | — | IA | — | ◇ UNVERIFIED |
| UFUnique Fabrications, INC. | Shippenville | PA | — | ◇ UNVERIFIED |
| UMUnique Machine & Tool | Mc Kees Rocks | PA | — | ◇ UNVERIFIED |
| UMUnique Metal Fabrication INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| UIUnitech Industries, INC. | Palmerton | PA | — | ◇ UNVERIFIED |
| UOUnitech Ornamental Metal Works | Hialeah | FL | — | ◇ UNVERIFIED |
| UAUnited Airlines, INC. | Newark | NJ | — | ◇ UNVERIFIED |
| UDUnited Duralume Products, INC. | Anaheim | CA | — | ◇ UNVERIFIED |
| UIUnited Industries, INC. | Odessa | TX | — | ◇ UNVERIFIED |
| ULUnited Lifttrucks | Huntington Park | CA | — | ◇ UNVERIFIED |
| UMUnited Machine Works | Houston | TX | — | ◇ UNVERIFIED |
| UMUnited Machining, Inc | Sutton | MA | — | ◇ UNVERIFIED |
| UMUnited Machining, INC. | Englewood | CO | — | ◇ UNVERIFIED |
| UMUnited Mechanical & Metal Fabricators, Inc. | Union City | CA | — | ◇ UNVERIFIED |
| UMUnited Metal Fabrication INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| UMUnited Metals Construction | Philadelphia | PA | — | ◇ UNVERIFIED |
| UMUnited Milwaukee Scrap LLC | Burnsville | MN | — | ◇ UNVERIFIED |
| UMUnited Milwaukee Scrap of Minnesota | Burnsville | MN | — | ◇ UNVERIFIED |
| UPUnited Performance Metals | La Mirada | CA | — | ◇ UNVERIFIED |
| USUnited Services INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| USUnited Sheet Metal Works and Steel Fabricators, INC. | Plant City | FL | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company Dba U.s. Pi | Union City | CA | — | ◇ UNVERIFIED |
| USUnited States Pipe & Foundry Company LLC | Naperville | IL | — | ◇ UNVERIFIED |
| USUnited Steel Ventures INC Dba United Precision Mac | Edina | MN | — | ◇ UNVERIFIED |
| USUnited Steel Works Inc | Moody | AL | — | ◇ UNVERIFIED |
| USUnited Structure Solution, Inc. | College Point | NY | — | ◇ UNVERIFIED |
| UTUnited Tooler of Illinois | Loves Park | IL | — | ◇ UNVERIFIED |
| UTUnited Tool & Mold INC | Duncan | SC | — | ◇ UNVERIFIED |
| UTUnity Tool INC Dba Unity Precision Manufacturing | Maple Grove | MN | — | ◇ UNVERIFIED |
| UFUnivacco Foils Corporation | Cerritos | CA | — | ◇ UNVERIFIED |
| UCUniversal Carbide | Santa Cruz | CA | — | ◇ UNVERIFIED |
| UCUniversal Compression INC | Tulsa | OK | — | ◇ UNVERIFIED |
| UFUniversal Fabricating and Construction Services | Groveport | OH | — | ◇ UNVERIFIED |
| UFUniversal Fabricators, LLC | Bay City | TX | — | ◇ UNVERIFIED |
| UFUniversal Fireproof Door Co., Inc. | Brentwood | NY | — | ◇ UNVERIFIED |
| UFUniversal Formations INC | Burnsville | MN | — | ◇ UNVERIFIED |
| UHUniversal Head CO INC | Joliet | IL | — | ◇ UNVERIFIED |
| UIUniversal Industries LLC | Tomahawk | WI | — | ◇ UNVERIFIED |
| UMUniversal Machine Shop | Huntington Beach | CA | — | ◇ UNVERIFIED |
| UMUniversal Machine Shop LLC | Mayfield | KY | — | ◇ UNVERIFIED |
| UMUniversal Manufacturing & Design, LLC | Greer | SC | — | ◇ UNVERIFIED |
| UMUniversal Marine & Industrial Services | Mobile | AL | — | ◇ UNVERIFIED |
| UMUniversal Molding Extrusion CO | Downey | CA | — | ◇ UNVERIFIED |
| USUniversal Stainless INC | Clear Lake | MN | — | ◇ UNVERIFIED |
| USUniversal Steel Services, INC. | San Bernardino | CA | — | ◇ UNVERIFIED |
| UTUniversal Tool Inc. | Troy | MI | — | ◇ UNVERIFIED |
| UTUniversal Tool, INC. | Rainbow City | AL | — | ◇ UNVERIFIED |
| UTUniversal Truck Equipments LLC | Medley | FL | — | ◇ UNVERIFIED |
| UWUniversal Welding & Fabrication INC. | North Pole | AK | — | ◇ UNVERIFIED |
| UIUnlimited Industrial Services, LLC | Belle Glade | FL | — | ◇ UNVERIFIED |
| UMUpchurch Machine Co., INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| UFUp Fabricating CO INC | Manistique | MI | — | ◇ UNVERIFIED |
| UEUpper Edge Solutions, LLC | Holland | NY | — | ◇ UNVERIFIED |
| UIUpturn Industries, INC. | Bainbridge | NY | — | ◇ UNVERIFIED |
| UTUrgent Tool and Machine, LLC | Coopersville | MI | — | ◇ UNVERIFIED |
| UTUSA Today National Rack Center | Murfreesboro | TN | — | ◇ UNVERIFIED |
| UIU.s.c.g. Isc San Pedro | San Pedro | CA | — | ◇ UNVERIFIED |
| UCUS Coast Guard Station, Kodiak | Kodiak | AK | — | ◇ UNVERIFIED |
| UDU.s. Department of Labor-osha | Red Bud | IL | — | ◇ UNVERIFIED |
| UDU.s. Department of the Treasury - U.s. Mint | San Francisco | CA | — | ◇ UNVERIFIED |
| UUsdol | Lubbock | TX | — | ◇ UNVERIFIED |
| UDU.s. Dol Osha | York | PA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Andover | Amesbury | MA | — | ◇ UNVERIFIED |
| UWUsdol-osha-atlanta West | Mableton | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Cincinnati Area Office | Troy | OH | — | ◇ UNVERIFIED |
| UOUsdol Osha - Cincinnati Area Office | Xenia | OH | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Victoria | TX | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Corpus Christi | TX | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Mcallen | TX | — | ◇ UNVERIFIED |
