| UMUnited Metal Technology INC | Jackson | MI | — | ◇ UNVERIFIED |
| UMUnited Millwright LLC | Mt Zion | IL | — | ◇ UNVERIFIED |
| UMUnited Millwright LLC | Mt Zion | IL | — | ◇ UNVERIFIED |
| UMUnited Misc & Ornamental Steel INC Dba Umo Steel INC | Union City | CA | — | ◇ UNVERIFIED |
| UMUnited Misc. & Ornamental Steel, Inc. | Union City | CA | — | ◇ UNVERIFIED |
| UPUnited Pacific Industries, INC. | Long Beach | CA | — | ◇ UNVERIFIED |
| UPUnited Panel Corporation | Cartersville | GA | — | ◇ UNVERIFIED |
| UPUnited Panel Corporation | Griffin | GA | — | ◇ UNVERIFIED |
| UPUnited Partition Systems Inc | Ontario | CA | — | ◇ UNVERIFIED |
| UPUnited Personnel Services, INC. | Whately | MA | — | ◇ UNVERIFIED |
| UPUnited Pipe Bending & Fabrication INC | Portland | OR | — | ◇ UNVERIFIED |
 United Plastic Fabricating, INC. | Ocala | FL | — | ◇ UNVERIFIED |
 United Plating Incorporated | Huntsville | AL | — | ◇ UNVERIFIED |
| UPUnited Power Generation INC | Riverside | CA | — | ◇ UNVERIFIED |
| UPUnited Property Services Dba Haul4me.com | Camarillo | CA | — | ◇ UNVERIFIED |
| UPUnited Property Services INC | Camarillo | CA | — | ◇ UNVERIFIED |
| URUnited Rentals | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| USUnited Science Industries | Dix | IL | — | ◇ UNVERIFIED |
| USUnited Science Industries INC | Okawville | IL | — | ◇ UNVERIFIED |
| USUnited Screening & Crushing INC | Corona | CA | — | ◇ UNVERIFIED |
| USUnited Security Product INC | Poway | CA | — | ◇ UNVERIFIED |
| USUnited Services Group, LLC | Bangor | PA | — | ◇ UNVERIFIED |
| USUnited Silk Screeners INC | Cedar Grove Township | NJ | — | ◇ UNVERIFIED |
| USUnited Site Services Springfield Ma | Indian Orchard | MA | — | ◇ UNVERIFIED |
| USUnited Slings & Lifting, INC. | Tecumseh | OK | — | ◇ UNVERIFIED |
| USUnited Solutions | Sardis | MS | — | ◇ UNVERIFIED |
| USUnited Spring Technology INC | Farmington Hills | MI | — | ◇ UNVERIFIED |
| USUnited Sprinkler INC | Rush City | MN | — | ◇ UNVERIFIED |
| USUnited Ss Fabricators, INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| USUnited States Aluminum CORP. | Vernon | CA | — | ◇ UNVERIFIED |
| USUnited States Can CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| USUnited States Can Company | Chesterton | IN | — | ◇ UNVERIFIED |
| USUnited States Can Company | Weirton | WV | — | ◇ UNVERIFIED |
| USUnited States Doe - Savannah River Site Managed and Operated By Srns, LLC | Aiken | SC | — | ◇ UNVERIFIED |
| USUnited States Fire Arms Manufacturing | Hartford | CT | — | ◇ UNVERIFIED |
| USUnited States Marble | Remus | MI | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company Dba U.s. Pi | Union City | CA | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company LLC | Rogers | MN | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company, LLC | — | IL | — | ◇ UNVERIFIED |
| USUnited States Pipe & Foundry Company LLC | Naperville | IL | — | ◇ UNVERIFIED |
| USUnited States Postal Service | Fillmore | CA | — | ◇ UNVERIFIED |
| USUnited States Steel Corporation | Worcester | MA | — | ◇ UNVERIFIED |
| USUnited Steel Fabricators INC | Rialto | CA | — | ◇ UNVERIFIED |
| USUnited Steel, INC. | Wichita | KS | — | ◇ UNVERIFIED |
| USUnited Steel Products | Largo | FL | — | ◇ UNVERIFIED |
| USUnited Steel Products Company, INC. | Livermore | CA | — | ◇ UNVERIFIED |
| USUnited Steel Works, INC. | Clearwater | FL | — | ◇ UNVERIFIED |
| USUnited Steel Works, INC. | Clearwater | FL | — | ◇ UNVERIFIED |
| USUnited Storefronts Corporation | Northborough | MA | — | ◇ UNVERIFIED |
| USUnited Structural Works, INC. | Congers | NY | — | ◇ UNVERIFIED |
| USUnited Structures of Georgia LLC | Cairo | GA | — | ◇ UNVERIFIED |
| USUnited Sugars Producers & Refiners Cooperative-chicago | Chicago | IL | — | ◇ UNVERIFIED |
| UTUnited Technologies Automotive Sys INC | Union City | IN | — | ◇ UNVERIFIED |
| UTUnited Technologies Corporation | Union | WV | — | ◇ UNVERIFIED |
| UTUnited Technologies Corporation | Union | WV | — | ◇ UNVERIFIED |
| UTUnited Trailers | Bristol | IN | — | ◇ UNVERIFIED |
| UTUnited Tube Bending | Montclair | CA | — | ◇ UNVERIFIED |
| UTUnited Tube Corparation | Medina | OH | — | ◇ UNVERIFIED |
| UWUnited Wire Craft, INC. | Des Plaines | IL | — | ◇ UNVERIFIED |
| URUnitrac Railroad Materials INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| U5Unity 5 INC | Deerfield | IL | — | ◇ UNVERIFIED |
| UFUnity Fabric INC. Dba Yc Textile | Los Angeles | CA | — | ◇ UNVERIFIED |
| UPUnity Plastics | North Little Rock | AR | — | ◇ UNVERIFIED |
| UIUnivance INC | Winchester | KY | — | ◇ UNVERIFIED |
| UUnivar | Martinsville | VA | — | ◇ UNVERIFIED |
| USUnivar Solutions USA INC. | Providence | RI | — | ◇ UNVERIFIED |
| USUnivar Solutions USA INC. | Carteret | NJ | — | ◇ UNVERIFIED |
| UUniversal | Cloverdale | VA | — | ◇ UNVERIFIED |
| UAUniversal Ammo Company, LLC | Frostproof | FL | — | ◇ UNVERIFIED |
| UAUniversal Automotive of Virginia INC | Walkerton | VA | — | ◇ UNVERIFIED |
| UAUniversal Auto Repairs Services LLC | Sacramento | CA | — | ◇ UNVERIFIED |
| UBUniversal Bearing LLC - Plant # 2 | Bremen | IN | — | ◇ UNVERIFIED |
| UCUniversal Cargo Doors & Service, INC. | Miami | FL | — | ◇ UNVERIFIED |
| UCUniversal Cargo Doors & Service, INC. | Miami | FL | — | ◇ UNVERIFIED |
| UCUniversal Chemicals & Coatings INC | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| UCUniversal Coating INC | Mount Morris | MI | — | ◇ UNVERIFIED |
| UCUniversal Coatings INC | Steger | IL | — | ◇ UNVERIFIED |
 Universal Compressor Solutions LLC | Mayfield | KY | — | ◇ UNVERIFIED |
| UCUniversal Core INC Dba As Rpm Rebuilders | Rialto | CA | — | ◇ UNVERIFIED |
| UCUniversal Cyclops Specialty Steel Div | Titusville | PA | — | ◇ UNVERIFIED |
| UDUniversal Dynamics | Woodbridge | VA | — | ◇ UNVERIFIED |
| UEUniversal Enterprises, INC. | Shinnston | WV | — | ◇ UNVERIFIED |
| UEUniversal Environmental Services | Trussville | AL | — | ◇ UNVERIFIED |
| UFUniversal Fabricating & Construction Ser | Columbus | OH | — | ◇ UNVERIFIED |
| UFUniversal Fabricators, LLC | Eglin Afb | FL | — | ◇ UNVERIFIED |
| UFUniversal Fireproof Door CO. INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
| UFUniversal Fixture CORP | Brooklyn | NY | — | ◇ UNVERIFIED |
| UGUniversal Galvanizing | Wright City | MO | — | ◇ UNVERIFIED |
| UGUniversal Galvinizing INC | Saint Peters | MO | — | ◇ UNVERIFIED |
| UGUniversal Gates & Hardware INC | Midvale | UT | — | ◇ UNVERIFIED |
| UHUniversal Head CO INC | Joliet | IL | — | ◇ UNVERIFIED |
| UIUniversal Induction, INC. | Benton Harbor | MI | — | ◇ UNVERIFIED |
| UIUniversal Industrial Finishing | Fremont | CA | — | ◇ UNVERIFIED |
| UIUniversal Industrial Finishing | Milpitas | CA | — | ◇ UNVERIFIED |
| UIUniversal Industries INC | Manor | TX | — | ◇ UNVERIFIED |
| UIUniversal Iron Works, INC | Pacoima | CA | — | ◇ UNVERIFIED |
| UIUniversal Ironworks, INC. | Prescott Valley | AZ | — | ◇ UNVERIFIED |
| UMUniversal Machine Company INC | Paramount | CA | — | ◇ UNVERIFIED |
| UMUniversal Metal Hose Company | Chicago | IL | — | ◇ UNVERIFIED |
| UMUniversal Metal Plating | Azusa | CA | — | ◇ UNVERIFIED |
