| TTTyco Thermal Controls | Menlo Park | CA | — | ◇ UNVERIFIED |
| TPT.y.g. Products, L.p. | Mckinney | TX | — | ◇ UNVERIFIED |
| TLTyler Livvix Dba Custom Films, INC. | Marshall | IL | — | ◇ UNVERIFIED |
| TUTym USA INC. | Wilson | NC | — | ◇ UNVERIFIED |
| UDUfo Design | Huntington Beach | CA | — | ◇ UNVERIFIED |
| UWUltimate Window INC. | Lawrence | MA | — | ◇ UNVERIFIED |
| UGUltra Glas of Lakeville Incorporated | Lakeville | IN | — | ◇ UNVERIFIED |
| UAUltrapro Air Tite Ma | North Adams | MA | — | ◇ UNVERIFIED |
| UIUndercover INC - Rogersville | Rogersville | MO | — | ◇ UNVERIFIED |
| UPUnion Products INC | Leominster | MA | — | ◇ UNVERIFIED |
| UPUnique Plastic Designs Group LLC | Odessa | FL | — | ◇ UNVERIFIED |
| UPUnistar Plastics LLC | Harahan | LA | — | ◇ UNVERIFIED |
| UCUnited Comb & Novelty Corporation | Gilbert | AZ | — | ◇ UNVERIFIED |
 United Plastic Fabricating, INC. | Ocala | FL | — | ◇ UNVERIFIED |
| USUnited Solutions | Sardis | MS | — | ◇ UNVERIFIED |
| USUnited States Marble | Remus | MI | — | ◇ UNVERIFIED |
| UTUnited Technologies Automotive Sys INC | Union City | IN | — | ◇ UNVERIFIED |
| UPUnity Plastics | North Little Rock | AR | — | ◇ UNVERIFIED |
| USUnivar Solutions USA INC. | Providence | RI | — | ◇ UNVERIFIED |
| UGUniversal Gates & Hardware INC | Midvale | UT | — | ◇ UNVERIFIED |
| UIUniversal Industries INC | Manor | TX | — | ◇ UNVERIFIED |
| UPUniversal Protective Packaging, INC. | Mechanicsburg | PA | — | ◇ UNVERIFIED |
| USUniversal Synergetics INC | Marlton | NJ | — | ◇ UNVERIFIED |
| USUniversal Synergetics INC | Marlton | NJ | — | ◇ UNVERIFIED |
| UIUni-Vue, Inc. | Troy | MI | — | ◇ UNVERIFIED |
| UMUniwall Mfg. CO. (1576111601) | Louisville | OH | — | ◇ UNVERIFIED |
| UMUnverferth Manufacturing Company, INC - Lexington Division - South Facility | Lexington | NE | — | ◇ UNVERIFIED |
| UMUnverferth Mfg CO INC | Kalida | OH | — | ◇ UNVERIFIED |
| UNUp North Industries LLC | Petoskey | MI | — | ◇ UNVERIFIED |
| URU Recycle LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| UMUSA Mold INC. | Newton | IA | — | ◇ UNVERIFIED |
| UPUSA Packaging LLC | Round Rock | TX | — | ◇ UNVERIFIED |
| USU S Cast, Inc. | Elmer | NJ | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Mableton | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Cincinnati Area Office | Lebanon | OH | — | ◇ UNVERIFIED |
| UOUsdol Osha - Cincinnati Area Office | Fairfield | OH | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Mcallen | TX | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Mcallen | TX | — | ◇ UNVERIFIED |
| UOUsdol Osha - Ft. Lauderdale Ao | Hialeah | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha Little Rock Ao | Little Rock | AR | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Auburn | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Clanton | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Elba | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Auburn | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Mobile | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Theodore | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Lafayette | AL | — | ◇ UNVERIFIED |
| UDUS Drainage Systems, LLC | Hickory | NC | — | ◇ UNVERIFIED |
| UFUS Farathane | Auburn Hills | MI | — | ◇ UNVERIFIED |
| UFUS Farathane | Utica | MI | — | ◇ UNVERIFIED |
