| United Civil, Inc MA | Construction | 0 | — | B |
| United Cleaners Supply LLC CA | Transportation & Warehousing | 0 | — | F |
| UNITED CLEANERS SUPPLY, INC NV | Wholesale Trade | 0 | — | A |
| United Coal - Wellmore Energy Company LLC KY | — | 0 | — | — |
| United Coal Company dba Sapphire Coal Company KY | — | 0 | — | — |
| United Cocoa Processor, Inc. DE | Manufacturing | 1 | $127,000 | — |
| United Coin Machine Co LLC NV | Arts & Entertainment | 0 | — | B |
| United Columbus OH | Wholesale Trade | 0 | — | F |
| United Commercial Upholstery MN | Manufacturing | 0 | — | F |
| United Commercial, Inc. WA | Construction | 0 | — | F |
| United Communities LLC NJ | Real Estate | 0 | — | F |
| United Community & Family Services CT | Healthcare & Social Assistance | 0 | — | F |
| United Community Action Partnership, Inc. MN | Healthcare & Social Assistance | 0 | — | D |
| United Community Options FL | — | 0 | — | — |
| United Community Pharmacy MN | Retail Trade | 0 | — | A |
| United Community Services, Inc. IA | Healthcare & Social Assistance | 0 | — | A |
| United Companies CO | Manufacturing | 0 | — | D |
| United Compost & Organics SC | Manufacturing | 0 | — | A |
| United Concrete Products, inc. CT | Manufacturing | 0 | — | A |
| United Construction & Forestry MA | Other Services | 0 | — | C |
| United Construction & Forestry ME | Other Services | 0 | — | D |
| United Construction & Forestry NH | Other Services | 0 | — | A |
| United Construction & Forestry NY | Other Services | 0 | — | A |
| United Construction & Forestry VT | Other Services | 0 | — | A |
| United Construction & Realty, Inc. WI | Retail Trade | 0 | — | F |
| United Construction Co Inc. WV | Construction | 0 | — | A |
| UNITED CONSTRUCTION CORP NH | Mining & Extraction | 0 | — | A |
| United Construction Group//High Power Electric AZ | Construction | 0 | — | D |
| United Construction Products dba Bison Innovative Products CO | Retail Trade | 0 | — | A |
| United Consulting Hub Inc NJ | Professional & Technical Services | 3 | $90,653 | — |
| United Container Company MI | Wholesale Trade | 0 | — | F |
| United Continental Holdings Inc ATL GA | Transportation & Warehousing | 0 | — | D |
| United Continental Holdings Inc AUS TX | Transportation & Warehousing | 0 | — | F |
| United Continental Holdings Inc BIL MT | Transportation & Warehousing | 0 | — | A |
| United Continental Holdings Inc BOS MA | Transportation & Warehousing | 0 | — | D |
| United Continental Holdings Inc BWI MD | Transportation & Warehousing | 0 | — | F |
| United Continental Holdings Inc CGO TX | Transportation & Warehousing | 0 | — | B |
| United Continental Holdings Inc CLE OH | Transportation & Warehousing | 0 | — | D |
| United Continental Holdings Inc CLT NC | Transportation & Warehousing | 0 | — | A |
| United Continental Holdings Inc COS CO | Transportation & Warehousing | 0 | — | A |
| United Continental Holdings Inc DCA VA | Transportation & Warehousing | 0 | — | A |
| United Continental Holdings Inc DEN CO | Transportation & Warehousing | 0 | — | D |
| United Continental Holdings Inc DFW TX | Transportation & Warehousing | 0 | — | F |
| United Continental Holdings Inc DTW MI | Transportation & Warehousing | 0 | — | A |
| United Continental Holdings Inc EWR NJ | Transportation & Warehousing | 0 | — | D |
| United Continental Holdings Inc FLL FL | Transportation & Warehousing | 0 | — | F |
| United Continental Holdings Inc GSO NC | Transportation & Warehousing | 0 | — | A |
| United Continental Holdings Inc GUM GU | Transportation & Warehousing | 0 | — | C |
| United Continental Holdings Inc HNL HI | Transportation & Warehousing | 0 | — | F |
| United Continental Holdings Inc IAD VA | Transportation & Warehousing | 0 | — | D |
