| United Piston Ring, Inc. WI | - | 0 | - | - |
| United Plate Glass Company (Butler) PA | Manufacturing | 0 | - | F |
| United Precious Metal Refining, Inc. NY | Manufacturing | 1 | $102,856 | A |
| United Pride Dairy LLC WI | Agriculture & Forestry | 0 | - | F |
| United Producers, Inc. KY | Wholesale Trade | 0 | - | F |
| United Professional Staffing, LLC IL | Administrative & Waste Services | 0 | - | F |
| United Pulse Trading Inc ND | Wholesale Trade | 0 | - | F |
| United Record Pressing TN | - | 0 | - | - |
| United Recovery systems AZ | - | 0 | - | - |
| United Recovery Systems KY | - | 0 | - | - |
| United Refining Company PA | Manufacturing | 0 | - | D |
| United Refrigeration Inc. PA | Wholesale Trade | 0 | - | A |
| United Regional Health Care System TX | Healthcare & Social Assistance | 0 | - | A |
| United Regional Health Care Systems TX | Healthcare & Social Assistance | 0 | - | C |
| United Rehab Solutions LLC MI | Healthcare & Social Assistance | 1 | $89,440 | - |
| United Rehabilitation Services PA | - | 0 | - | - |
| United Rentals NV | - | 0 | - | - |
| United Rentals Inc. CT | Real Estate | 6 | $113,221 | - |
| United Restoration and Development Corp NY | Construction | 1 | $81,432 | - |
| united Road Service WA | Transportation & Warehousing | 0 | - | F |
| United Road Services MI | Transportation & Warehousing | 0 | - | B |
| United Road Towing NV | Transportation & Warehousing | 0 | - | F |
| United Rolls Inc OH | Manufacturing | 0 | - | F |
| United Rotary Brush Corporation KS | Manufacturing | 0 | - | F |
| United Scope LLC CA | Manufacturing | 1 | $138,399 | - |
| United Security Services, Inc. IL | Administrative & Waste Services | 0 | - | D |
| United Services Automobile Association CA | - | 0 | - | - |
| United Services Automobile Association TX | Finance & Insurance | 68 | $148,098 | - |
| United Services Automobile Association (USAA) TX | - | 0 | - | - |
| United Services Companies - 5 Star Laundry, Westin Diplomat Resort & Spa FL | - | 0 | - | - |
| United Services for Children MO | - | 0 | - | - |
| United Sikhs NY | Healthcare & Social Assistance | 1 | $68,869 | - |
| United Site Services, INC. MA | Administrative & Waste Services | 1 | $230,308 | C |
| United Software Corporation TX | Professional & Technical Services | 4 | $89,154 | - |
| United Software Group, Inc. OH | Professional & Technical Services | 1 | $120,598 | - |
| United Solar Ovonic LLC MI | - | 0 | - | - |
| United Solutions, Inc. WI | - | 0 | - | - |
| United Source One, Inc. MD | Wholesale Trade | 0 | - | B |
| United Space Alliance (USA) AL | - | 0 | - | - |
| United Space Alliance, LLC FL | - | 0 | - | - |
| United Space Alliance, LLC TX | - | 0 | - | - |
| United Space Alliance, LLC (JSC) - Houston2 TX | - | 0 | - | - |
| United Space Alliance, LLC - Houston10 TX | - | 0 | - | - |
| United Space Alliance, LLC - Houston11 TX | - | 0 | - | - |
| United Space Alliance, LLC - Houston2 TX | - | 0 | - | - |
| United Space Alliance, LLC - Houston3 TX | - | 0 | - | - |
| United Space Alliance, LLC - Houston4 TX | - | 0 | - | - |
| United Space Alliance, LLC - Houston5 TX | - | 0 | - | - |
| United Space Alliance, LLC - Houston6 TX | - | 0 | - | - |
| United Space Alliance, LLC - Houston7 TX | - | 0 | - | - |
