| U.S. Tent Rental, LLC FL | Real Estate | 1 | $95,202 | — |
| U.S. Truss Company IL | Manufacturing | 0 | — | F |
| U.S. Tsubaki Automotive, LLC MA | Manufacturing | 0 | — | F |
| U.S. Utility Contractor Co., Inc. OH | Construction | 0 | — | A |
| U.S. Utility Electrical Service Corp OH | Construction | 0 | — | A |
| U.S. Well Services PA | — | 0 | — | — |
| U.S. Well Services TX | — | 0 | — | — |
| U.S. Well Services - Pleasanton TX | — | 0 | — | — |
| U.S. Xpress, Inc IN | — | 0 | — | — |
| U.S. Xpress, Inc. TN | Transportation & Warehousing | 2 | $89,300 | — |
| U.S. Zinc DBA Everzinc TN | Manufacturing | 0 | — | F |
| U.S.A Healthcare AL | Healthcare & Social Assistance | 0 | — | F |
| U.S.A. Drives, Inc. IL | Manufacturing | 0 | — | F |
| U.S.A. Medical Svcs. Corp. & Bupa Worldwide Co. FL | — | 0 | — | — |
| U.S.Bank CA | — | 0 | — | — |
| U3FIT, INC. CA | Educational Services | 1 | $97,594 | — |
| UA Fairfield LLC OH | Arts & Entertainment | 0 | — | D |
| UAB Callahan Eye Hospital AL | Healthcare & Social Assistance | 0 | — | B |
| UAB Health Services AL | Accommodation & Food Services | 0 | — | A |
| UAC Acquisition, INC AR | Agriculture & Forestry | 0 | — | A |
| UAC Acquisition, INC GA | Agriculture & Forestry | 0 | — | A |
| UAC Acquisition, INC MD | Agriculture & Forestry | 0 | — | A |
| UAC Acquisition, INC NC | Agriculture & Forestry | 0 | — | F |
| UAC Acquisition, INC NE | Agriculture & Forestry | 0 | — | D |
| UAC Acquisition, INC PA | Agriculture & Forestry | 0 | — | C |
| UAC Acquisition, INC VA | Agriculture & Forestry | 0 | — | A |
| UAC Trucking LLC AR | Transportation & Warehousing | 0 | — | A |
| UAC Trucking LLC NC | Transportation & Warehousing | 0 | — | A |
| UACJ Automotive Whitehall Industries INC AZ | — | 0 | — | — |
| UACJ Automotive Whitehall Industries Inc. MI | Manufacturing | 0 | — | F |
| UAG Capitol, Inc. dba Capitol Honda CA | — | 0 | — | — |
| UAG Cerritos I, LLC dba Penske Chevrolet of Cerritos CA | — | 0 | — | — |
| UAG CONSTRUCTION, LLC FL | Construction | 0 | — | F |
| UAG Stevens Creek II, Inc. DBA Audi Stevens Creek CA | — | 0 | — | — |
| UAG VENTURES AC, L.P. TX | Real Estate | 0 | — | F |
| UAH Technologies LLC TX | Professional & Technical Services | 1 | $94,000 | — |
| UAP Company NY | Manufacturing | 0 | — | F |
| UAP Production LLC NY | Manufacturing | 1 | $76,960 | — |
| UAP Recycling FL | Transportation & Warehousing | 0 | — | A |
| UAP Recycling MO | Transportation & Warehousing | 0 | — | A |
| UAP Recycling, LLC GA | Transportation & Warehousing | 0 | — | B |
| UAR- Acworth GA | Administrative & Waste Services | 0 | — | A |
| UAW-Chrysler National Training Center IN | — | 0 | — | — |
| UAW-Chrysler National Training Center MI | — | 0 | — | — |
| UB Family Medicine, Inc. NY | Healthcare & Social Assistance | 1 | $220,000 | — |
| UB Technology Innovations, Inc CA | Professional & Technical Services | 2 | $134,997 | — |
| Ubagit Corp. AL | Retail Trade | 0 | — | D |
| Ubagit Corp. GA | Retail Trade | 0 | — | D |
| UBC Technology Services, Inc. SC | Professional & Technical Services | 1 | $166,400 | — |
| UBC, INC. TX | Wholesale Trade | 0 | — | A |
