| Unlimited Duct Work & HVAC Corp FL | Construction | 0 | — | A |
| Unlimited Insulation & Scaffolding Services, LLC WY | Construction | 0 | — | A |
| Unlimited Labor Solutions, LLC TX | Professional & Technical Services | 1 | $80,000 | — |
| Unlimited Landscaping & Turf Management AL | Administrative & Waste Services | 0 | — | A |
| Unlimited Landscaping & Turf Management GA | Administrative & Waste Services | 0 | — | F |
| Unlimited Landscaping & Turf Management SC | Administrative & Waste Services | 0 | — | A |
| Unlimited Landscaping & Turf Managment GA | Administrative & Waste Services | 0 | — | A |
| Unlimited Logistics AZ | Transportation & Warehousing | 0 | — | A |
| Unlimited Maintenance and Construction Services, Inc. KY | Construction | 0 | — | A |
| Unlimited of Orange dba Lightstyles CA | Manufacturing | 0 | — | F |
| Unlimited Opportunities, Inc. MO | Healthcare & Social Assistance | 0 | — | F |
| Unlimited services of WI Inc WI | Manufacturing | 0 | — | A |
| UNLIMITED WELDING & FABRICATION MN | Manufacturing | 0 | — | F |
| Unlimted Machine and Tool LLC OH | Manufacturing | 0 | — | A |
| UNM Hospital NM | Educational Services | 5 | $73,070 | — |
| UNM Sandoval Regional Medical Center NM | — | 0 | — | — |
| Unmapped Brewing Company MN | Manufacturing | 0 | — | A |
| UNMC Physicians NE | Healthcare & Social Assistance | 3 | $281,683 | — |
| Unparalleled Delivery LLC CA | Transportation & Warehousing | 0 | — | D |
| Unqork, Inc. NY | Information & Media | 3 | $146,206 | — |
| Unquera Enterprises, Inc. FL | Retail Trade | 0 | — | A |
| UNR Med Integrated Clinical Services, Inc. NV | — | 0 | — | — |
| Unravel Data Systems, Inc. CA | Professional & Technical Services | 1 | $199,534 | — |
| UnScreen LLC NY | Professional & Technical Services | 1 | $75,000 | — |
| unspun, Inc. CA | Manufacturing | 2 | $145,000 | — |
| UNSR, LLC GA | Manufacturing | 0 | — | A |
| UNTERNET PBC CA | Information & Media | 2 | $250,000 | — |
| Untied Electric Comapny KY | Construction | 0 | — | A |
| Untied Machining Inc. MI | Manufacturing | 0 | — | F |
| Untied Spiral Pipe, LLC. CA | — | 0 | — | — |
| UNTITLED MANIFESTO LLC NV | Information & Media | 1 | $183,082 | — |
| UNTL Capital, LLC NY | Finance & Insurance | 2 | $97,500 | — |
| UNUM Group TN | Finance & Insurance | 15 | $137,637 | — |
| Unum ID, Inc. CA | Information & Media | 1 | $120,000 | — |
| Unverferth Manufacturing IA | Manufacturing | 0 | — | F |
| Unverferth Manufacturing OH | Manufacturing | 0 | — | F |
| UNWRAPPEDINC MA | Manufacturing | 0 | — | A |
| UNY, LLC a/k/a General Super Plating NY | — | 0 | — | — |
| Unyeway Inc. CA | Healthcare & Social Assistance | 0 | — | F |
| Unytite, Inc. IL | Manufacturing | 0 | — | F |
| Unzipped Apparel Sales inc NY | Administrative & Waste Services | 0 | — | A |
| UofL Health - Louisville, Inc. KY | Healthcare & Social Assistance | 14 | $70,538 | — |
| Uonites Worldwide LLC NV | Transportation & Warehousing | 0 | — | C |
| UOP LLC IL | Professional & Technical Services | 7 | $130,208 | D |
| UOP LLC NC | Professional & Technical Services | 3 | $182,260 | — |
| UOVO Art, LLC (2 sites) NY | — | 0 | — | — |
| Up & At Em CA | Construction | 0 | — | A |
| Up and Out, Inc. OR | Healthcare & Social Assistance | 0 | — | F |
| UP Fabricating CO Inc MI | Manufacturing | 0 | — | F |
| UP Fitness DC LLC DC | Arts & Entertainment | 0 | — | A |
