| UCUnion Corrugating | Ocala | FL | — | ◇ UNVERIFIED |
| UPUnion Pacific Railroad Shed 10 | Cisco Grove | CA | — | ◇ UNVERIFIED |
| UTUnion Towers Ii | Weymouth | MA | — | ◇ UNVERIFIED |
| UOUniparts Olsen, INC. | — | IA | — | ◇ UNVERIFIED |
| UPUnipunch Products, INC. | Clear Lake | WI | — | ◇ UNVERIFIED |
| UEUnique Elevator Interiors, INC | Oakland | CA | — | ◇ UNVERIFIED |
| UEUnique Elevator Interiors LLC | Alameda | CA | — | ◇ UNVERIFIED |
| UFUnique Fabricating INC. South | La Fayette | GA | — | ◇ UNVERIFIED |
| UFUnique Fabrications, INC. | Shippenville | PA | — | ◇ UNVERIFIED |
| UMUnique Machine & Tool | Mc Kees Rocks | PA | — | ◇ UNVERIFIED |
| UMUnique Metal Fabrication INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| UPUnique Precision Industries | Temecula | CA | — | ◇ UNVERIFIED |
| UCUnison Comfort Technologies Div of Greenback Fan | Mcclellan | CA | — | ◇ UNVERIFIED |
| UIUnison Industries LLC Plant 2 | Dayton | OH | — | ◇ UNVERIFIED |
| UCUnit Corporation | Oklahoma City | OK | — | ◇ UNVERIFIED |
| UIUnitech Industries, INC. | Palmerton | PA | — | ◇ UNVERIFIED |
| ULUnitech Lc | Salt Lake City | UT | — | ◇ UNVERIFIED |
| UOUnitech Ornamental Metal Works | Hialeah | FL | — | ◇ UNVERIFIED |
| UAUnited Airlines, INC. | Newark | NJ | — | ◇ UNVERIFIED |
| UAUnited Auto Company INC | Boston | MA | — | ◇ UNVERIFIED |
| UBUnited Bakery Equipment | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| UBUnited Best Sheet Metal | Arcadia | CA | — | ◇ UNVERIFIED |
| UBUnited Blood Services California Dba Vitalant | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| UBUnited Bolt & Screw CORP | Dearborn | MI | — | ◇ UNVERIFIED |
| UCUnited Cabs INC. | Jamaica | NY | — | ◇ UNVERIFIED |
| UCUnited Carbide LLC | Sheboygan | WI | — | ◇ UNVERIFIED |
| UDUnited Duralume Products, INC. | Anaheim | CA | — | ◇ UNVERIFIED |
| UEUnited Engine & Machine Company | Carson City | NV | — | ◇ UNVERIFIED |
| UEUnited Entertech CORP. | Chattanooga | TN | — | ◇ UNVERIFIED |
| UFUnited Fabrication | Salt Lake City | UT | — | ◇ UNVERIFIED |
| UFUnited Farm LLC | Caruthers | CA | — | ◇ UNVERIFIED |
 United Fiberglass of America INC (0812100565) | Springfield | OH | — | ◇ UNVERIFIED |
| UHUnited Hoist Equipment INC. | Tampa | FL | — | ◇ UNVERIFIED |
| UHUnited Hoist Equipment INC. | Saint Petersburg | FL | — | ◇ 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 Dba Umec | Union City | CA | — | ◇ UNVERIFIED |
| UMUnited Mechanical & Metal Fabricators, Inc. | Union City | CA | — | ◇ UNVERIFIED |
| UMUnited Metal Fabrication INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| UMUnited Metal Products, INC. | Tempe | AZ | — | ◇ UNVERIFIED |
| UMUnited Metals Construction | Philadelphia | PA | — | ◇ UNVERIFIED |
| UMUnited Metal Services | Houston | TX | — | ◇ UNVERIFIED |
| UMUnited Milwaukee Scrap LLC | Burnsville | MN | — | ◇ UNVERIFIED |
| UMUnited Milwaukee Scrap of Minnesota | Burnsville | MN | — | ◇ UNVERIFIED |
| UMUnited Mold | Sacramento | CA | — | ◇ UNVERIFIED |
| UMUnited Motorsports | Yucaipa | CA | — | ◇ UNVERIFIED |
| UOUnited Ophthalmics LLC | Middletown | CT | — | ◇ UNVERIFIED |
| UPUnited Performance Metals | La Mirada | CA | — | ◇ UNVERIFIED |
| URUnited Refrigeration, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| URUnited Rentals | San Jose | CA | — | ◇ UNVERIFIED |
| USUnited Scientific INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| USUnited Services INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| USUnited Sheet Metal Works and Steel Fabricators, INC. | Plant City | FL | — | ◇ UNVERIFIED |
| USUnited Solar Ovonic | Auburn Hills | MI | — | ◇ UNVERIFIED |
| USUnited Spring & Mfg. Co. | Chicago | IL | — | ◇ UNVERIFIED |
| USUnited States Associates, LLC | Providence | RI | — | ◇ UNVERIFIED |
| USUnited States Mint at San Francisco | San Francisco | CA | — | ◇ 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 |
| USUnited Support Solutions INC. | Totowa | NJ | — | ◇ UNVERIFIED |
| UTUnited Team Mechanical, LLC | Kaysville | UT | — | ◇ UNVERIFIED |
| UTUnited Technologies CORP Dba Carrier CORP | Indianapolis | IN | — | ◇ UNVERIFIED |
| UTUnited Technologies Otis Eleva | San Francisco | CA | — | ◇ UNVERIFIED |
| UTUnited Technologies - Otis Elevator Company | Bloomington | IN | — | ◇ UNVERIFIED |
| UTUnited Tooler of Illinois | Loves Park | IL | — | ◇ UNVERIFIED |
| UTUnited Tool & Mold INC | Duncan | SC | — | ◇ UNVERIFIED |
| UTUnited Trailers | Bristol | IN | — | ◇ UNVERIFIED |
| UWUnited Weld Services, LLC | York | PA | — | ◇ UNVERIFIED |
| UTUnity Tool INC Dba Unity Precision Manufacturing | Osseo | MN | — | ◇ 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 |
| UDUniversal / Devlieg Inc. | Saginaw | MI | — | ◇ UNVERIFIED |
| UDUniversal Dry Cleaners | Huntington Beach | CA | — | ◇ UNVERIFIED |
| UDUniversal Dust Collector Mfg & Supply CORP Dba Udc Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| UFUniversal Fabricating and Construction Services | Groveport | OH | — | ◇ UNVERIFIED |
| UFUniversal Fabricators INC | Madison Heights | MI | — | ◇ 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 |
| UHUniversal Hydrogen | Hawthorne | CA | — | ◇ UNVERIFIED |
| UIUniversal Industries LLC | Tomahawk | WI | — | ◇ UNVERIFIED |
| ULUniversal Logistics USA | Jacksonville | FL | — | ◇ 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 Metal Products | Pemberville | OH | — | ◇ UNVERIFIED |
| UMUniversal Molding Extrusion CO | Downey | CA | — | ◇ UNVERIFIED |
| UMUniversal Motion Components INC | Costa Mesa | CA | — | ◇ UNVERIFIED |
| UPUniversal Packaging Systems, INC | Chino | CA | — | ◇ UNVERIFIED |
| URUniversal Rivet INC. | Hialeah | FL | — | ◇ UNVERIFIED |
| USUniversal Sheetmetal INC | Woodinville | WA | — | ◇ UNVERIFIED |
| USUniversal Stainless INC | Clear Lake | MN | — | ◇ UNVERIFIED |
