| United Temps PEO MD | Other Services | 0 | — | F |
| United Temps, Inc, DC | Administrative & Waste Services | 0 | — | A |
| United Temps, Inc. DC | Administrative & Waste Services | 0 | — | F |
| United Temps, Inc. FL | Administrative & Waste Services | 0 | — | F |
| United Temps, Inc. GA | Administrative & Waste Services | 0 | — | F |
| United Temps, Inc. IL | Administrative & Waste Services | 0 | — | F |
| United Temps, Inc. MD | Administrative & Waste Services | 0 | — | D |
| United Temps, Inc. NH | Administrative & Waste Services | 0 | — | A |
| United Temps, Inc. OR | Administrative & Waste Services | 0 | — | A |
| United Temps, Inc. VA | Administrative & Waste Services | 0 | — | F |
| United Temps, Inc. WA | Administrative & Waste Services | 0 | — | A |
| United Terrain Group NJ | Construction | 0 | — | A |
| United Theological Seminary OH | Educational Services | 1 | $56,160 | — |
| UNITED THERAPEUTICS CORPORATION MD | Manufacturing | 4 | $151,194 | C |
| United Therapeutics Corporation NC | Manufacturing | 0 | — | A |
| UNITED THERAPY SERVICES, PLLC TX | Healthcare & Social Assistance | 1 | $145,600 | — |
| United Tissue Resources TX | Healthcare & Social Assistance | 0 | — | D |
| United Titanium OH | Manufacturing | 0 | — | D |
| United TN Holdings, Inc AL | Administrative & Waste Services | 0 | — | F |
| United TN Holdings, Inc GA | Administrative & Waste Services | 0 | — | A |
| United TN Holdings, Inc HI | Administrative & Waste Services | 0 | — | A |
| United TN Holdings, Inc IL | Administrative & Waste Services | 0 | — | F |
| United TN Holdings, Inc KS | Administrative & Waste Services | 0 | — | A |
| United TN Holdings, Inc KY | Administrative & Waste Services | 0 | — | F |
| United TN Holdings, Inc MO | Transportation & Warehousing | 0 | — | B |
| United TN Holdings, Inc MS | Administrative & Waste Services | 0 | — | F |
| United TN Holdings, Inc OH | Administrative & Waste Services | 0 | — | A |
| United TN Holdings, Inc TN | Transportation & Warehousing | 0 | — | A |
| United Tool & Die Company CT | Manufacturing | 0 | — | D |
| United Tool & Engineering, Inc. IN | Manufacturing | 0 | — | A |
| United Tool & Machine Corporation MA | Manufacturing | 0 | — | F |
| United Tool and Mold, Inc. SC | Manufacturing | 0 | — | F |
| United Tool, LLC WI | Manufacturing | 0 | — | F |
| United Towing & Transport AL | Transportation & Warehousing | 0 | — | F |
| United Towing & Transport, Inc. LA | Transportation & Warehousing | 0 | — | F |
| United Towing & Transport, Inc. TX | Transportation & Warehousing | 0 | — | D |
| United Towing and Transport MO | Transportation & Warehousing | 0 | — | F |
| United Towing, Inc. CA | Transportation & Warehousing | 0 | — | C |
| United Township High School District #30 IL | Educational Services | 0 | — | D |
| United Transfusion Clinic MN | — | 0 | — | — |
| United Transport, Inc. NE | Transportation & Warehousing | 0 | — | D |
| United Treating & Distribution, LLC AL | Manufacturing | 0 | — | A |
| United Tube Corporation OH | Manufacturing | 0 | — | D |
| United Utility Services LLC AL | Construction | 0 | — | A |
| United Utility Services LLC FL | Construction | 0 | — | A |
| United Utility Services LLC LA | Construction | 0 | — | B |
| United Utility Services LLC MS | Construction | 0 | — | B |
| United Utility Services LLC NY | Construction | 0 | — | D |
| United Utility Services LLC TX | Construction | 0 | — | B |
| United Utility Services LLC VA | Construction | 0 | — | A |
