| UPUnited Personnel Services, INC. | Whately | MA | — | ◇ UNVERIFIED |
 United Plastic Fabricating, INC. | Ocala | FL | — | ◇ UNVERIFIED |
| URUnited Rentals | Elk Grove Village | IL | — | ◇ UNVERIFIED |
 United Rotary Brush Corporation | Lenexa | KS | — | ◇ UNVERIFIED |
| USUnited Science Industries | Dix | IL | — | ◇ UNVERIFIED |
| USUnited Science Industries INC | Okawville | IL | — | ◇ UNVERIFIED |
| USUnited Solutions | Sardis | MS | — | ◇ UNVERIFIED |
| USUnited Sorbents, LLC | Lexington | TN | — | ◇ UNVERIFIED |
| USUnited States Awning Company | Sarasota | FL | — | ◇ UNVERIFIED |
| USUnited States Marble | Remus | MI | — | ◇ UNVERIFIED |
| USUnited Sugars Producers & Refiners Cooperative-chicago | Chicago | IL | — | ◇ UNVERIFIED |
| USUnited Support Solutions INC. | Totowa | NJ | — | ◇ UNVERIFIED |
| UTUnited Team Mechanical, LLC | Kaysville | UT | — | ◇ UNVERIFIED |
| UTUnited Technologies Automotive Sys INC | Union City | IN | — | ◇ UNVERIFIED |
| UWUnited Weld Services, LLC | York | PA | — | ◇ UNVERIFIED |
| UWUnited Wire Craft, INC. | Des Plaines | IL | — | ◇ UNVERIFIED |
| UWUnited Woodworking INC | Schaumburg | IL | — | ◇ UNVERIFIED |
| UTUnitex Textile Rental Services | Hartford | CT | — | ◇ UNVERIFIED |
| U5Unity 5 INC | Deerfield | IL | — | ◇ UNVERIFIED |
| UPUnity Plastics | North Little Rock | AR | — | ◇ UNVERIFIED |
| USUnivar Solutions USA INC. | Providence | RI | — | ◇ UNVERIFIED |
| USUnivar Solutions USA INC. | Carteret | NJ | — | ◇ UNVERIFIED |
| UCUniversal Custom Display | Tucson | AZ | — | ◇ UNVERIFIED |
| UDUniversal Dust Collector Mfg & Supply CORP Dba Udc Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| UEUniversal Embroidery LLC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| UEUniversal Embroidery LLC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| UFUniversal Fabricators INC | Madison Heights | MI | — | ◇ UNVERIFIED |
| UFUniversal Food Products INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
| UGUniversal Gates & Hardware INC | Midvale | UT | — | ◇ UNVERIFIED |
| UIUniversal Industries INC | Manor | TX | — | ◇ UNVERIFIED |
| ULUniversal Liberty Publishing | Pinellas Park | FL | — | ◇ UNVERIFIED |
| UPUniversal Presentation Concepts | Madison | WI | — | ◇ UNVERIFIED |
| UPUniversal Protective Packaging, INC. | Mechanicsburg | PA | — | ◇ UNVERIFIED |
| UPUniversal Pure | Malvern | PA | — | ◇ UNVERIFIED |
| USUniversal Sawmill | Bungay | IL | — | ◇ UNVERIFIED |
| USUniversal Sheetmetal INC | Woodinville | WA | — | ◇ UNVERIFIED |
| USUniversal Stenciling & Marking Systems, INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| USUniversal Synergetics INC | Marlton | NJ | — | ◇ UNVERIFIED |
| USUniversal Synergetics INC | Marlton | NJ | — | ◇ UNVERIFIED |
| UFUniversity Frames INC | Anaheim | CA | — | ◇ UNVERIFIED |
| UPUniversity Park Golo | University Park | IL | — | ◇ UNVERIFIED |
| USUniversity Service | Decatur | IL | — | ◇ UNVERIFIED |
| UIUni-Vue, Inc. | Troy | MI | — | ◇ UNVERIFIED |
| UMUniwall Mfg. CO. (1576111601) | Louisville | OH | — | ◇ UNVERIFIED |
| UIUniweb INC | Orange | CA | — | ◇ UNVERIFIED |
| UIUniweb Incorporated | Corona | CA | — | ◇ UNVERIFIED |
| UIUnlimited Image INC | Burnsville | MN | — | ◇ UNVERIFIED |
| UIUnlimited Inovations INC. | Plattsmouth | NE | — | ◇ UNVERIFIED |
| UUop | Anaheim | CA | — | ◇ UNVERIFIED |
| UWUpc West LLC | Mira Loma | CA | — | ◇ UNVERIFIED |
| USUpcycled Solutions, LLC | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| USUpcycle Solutions, Inc. | Londonderry | NH | — | ◇ UNVERIFIED |
| UNUp North Industries LLC | Petoskey | MI | — | ◇ UNVERIFIED |
| URUpper Rock Energy Partners LLC - Upper Rock Island County Landfill | East Moline | IL | — | ◇ UNVERIFIED |
| UUps | Urbana | IL | — | ◇ UNVERIFIED |
| ULUpside247, LLC | Brooklyn | NY | — | ◇ UNVERIFIED |
| USUpton Sheet Metal, Inc. | Anaheim | CA | — | ◇ UNVERIFIED |
| UIUpward Investments | Honey Brook | PA | — | ◇ UNVERIFIED |
| UTUrbn Timber LLC | Columbus | OH | — | ◇ UNVERIFIED |
| URU Recycle LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| U1Ursa 1 Stop | Ursa | IL | — | ◇ UNVERIFIED |
| UTUrsa Truck and Trailer Repair | Ursa | IL | — | ◇ UNVERIFIED |
| UCUrsumari Corporation INC. | Katy | TX | — | ◇ UNVERIFIED |
| UIUrthpact Innovations Dba Urthpact West | Lincoln | CA | — | ◇ UNVERIFIED |
| UCUSA Cleaners & Laundry | Bell Gardens | CA | — | ◇ UNVERIFIED |
| UMUSA Mold INC. | Newton | IA | — | ◇ UNVERIFIED |
| UPUSA Packaging LLC | Round Rock | TX | — | ◇ UNVERIFIED |
| URUSA Recycling & Excavation | Galesburg | IL | — | ◇ UNVERIFIED |
| UAU.s. Army Corps of Engineers | Pine Bluff | AR | — | ◇ UNVERIFIED |
| UAUS Army National Guard at Midway Airport | Chicago | IL | — | ◇ UNVERIFIED |
| UBUS Bulksak Holdings, LLC | Malvern | AR | — | ◇ UNVERIFIED |
| UCU.S. Canvas & Awning Corp. | Houston | TX | — | ◇ UNVERIFIED |
| USU S Cast, Inc. | Elmer | NJ | — | ◇ UNVERIFIED |
| UCUS Chemical Storage Plant 2 | Wilkesboro | NC | — | ◇ UNVERIFIED |
| UCUS Corrugated Ii | Covington | GA | — | ◇ UNVERIFIED |
| UCU.s. Corrugated, INC. | Greensboro | NC | — | ◇ UNVERIFIED |
| UDU.s. Display Group-corona Plant | Corona | CA | — | ◇ UNVERIFIED |
| UDU.s. Display Group, INC. | Tullahoma | TN | — | ◇ UNVERIFIED |
| UDUS Doe Fermilab | Batavia | IL | — | ◇ UNVERIFIED |
| UDU.s. Doe Pinellas Plant | Largo | FL | — | ◇ UNVERIFIED |
| UDU.s. Dol Osha | York Haven | PA | — | ◇ 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 |
| UOUsdol Osha - Atlanta West Ao | Rossville | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Mableton | GA | — | ◇ UNVERIFIED |
| UDUS Dol Osha Bridgeport | Madison | CT | — | ◇ 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 | Homestead | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha - Ft. Lauderdale Ao | Hialeah | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha - Ft. Lauderdale Ao | Hialeah | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha - Jacksonville | Ocala | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha - Kcao | Joplin | MO | — | ◇ UNVERIFIED |
| UOUsdol Osha Little Rock Ao | Little Rock | AR | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Elba | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Clanton | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Theodore | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Mobile | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Lafayette | AL | — | ◇ UNVERIFIED |
