| United Airlines - SFO CA | - | 0 | - | - |
| United Airlines - Update 1 CO | - | 0 | - | - |
| United Airlines Airport Operations DIV MI | - | 0 | - | - |
| United Airlines Update CO | - | 0 | - | - |
| United Airlines, Inc - Cleveland Hopkins International Airport OH | - | 0 | - | - |
| United Airlines, Inc. CT | - | 0 | - | - |
| United Airlines, Inc. IL | Transportation & Warehousing | 3 | $131,014 | C |
| United Airlines, Inc. NE | - | 0 | - | - |
| United Airlines, Inc. - John Wayne Airport CA | - | 0 | - | - |
| United Airlines, Inc. - Los Angeles International Airport CA | - | 0 | - | - |
| United Airlines, Inc. - San Diego International Airport CA | - | 0 | - | - |
| United Airlines, Inc. - San Francisco International Airport CA | - | 0 | - | - |
| United Airlines, Inc. dba Flight Operations division IL | - | 0 | - | - |
| United Airlines, Inc. Ft. Lauderdale-Hollywood Int'l Air FL | - | 0 | - | - |
| United Airlines, Inc. Jacksonville International Airport FL | - | 0 | - | - |
| United Airlines, Inc. Miami International Airport Concourse G FL | - | 0 | - | - |
| United Airlines, Inc. Palm Beach International Airport FL | - | 0 | - | - |
| United Airlines, Inc. Revised (7/31/20) IN | - | 0 | - | - |
| United Airlines, Inc. Tampa International Airport FL | - | 0 | - | - |
| United Airlines, Inc.'s Airport Operations Division RI | - | 0 | - | - |
| United Airlines, Inc.-Passanger Revenue Accounting TX | - | 0 | - | - |
| United Airlines, Philadelphia International Airport PA | - | 0 | - | - |
| United Airlines, Pittsburgh International Airport PA | - | 0 | - | - |
| United Airlines- Updated CO | - | 0 | - | - |
| United Aline Services Inc NY | Finance & Insurance | 1 | $66,000 | - |
| United Alloy Inc. TX | Manufacturing | 0 | - | F |
| United Alloy Inc. WI | Manufacturing | 0 | - | F |
| United Ambulance Service ME | Healthcare & Social Assistance | 0 | - | F |
| United America Systems, Inc. FL | Professional & Technical Services | 2 | $106,531 | - |
| United Ammunition Container TN | Manufacturing | 0 | - | D |
| United AMS , LLC NV | Finance & Insurance | 1 | $119,995 | - |
| United Arab Shipping Company (UASC) VA | - | 0 | - | - |
| United Auto Supply of Syracuse West Inc NY | Wholesale Trade | 0 | - | F |
| United Bakery & Co CA | Manufacturing | 0 | - | F |
| United Bank Card, Inc. NJ | - | 0 | - | - |
| United BioSource LLC MO | - | 0 | - | - |
| United Biosource LLC PA | Professional & Technical Services | 2 | $144,748 | - |
| United BioSource LLC (UBC) KS | - | 0 | - | - |
| United Brass Works, Inc NC | Manufacturing | 0 | - | F |
| United Brothers Motor Group, Inc. dba CA | - | 0 | - | - |
| United Builders Supply Co., Inc. RI | - | 0 | - | - |
| United Building Maintenance Inc CA | Administrative & Waste Services | 0 | - | F |
| United Bus Corporation NY | - | 0 | - | - |
| United Business Freight Forwarders, LLC CA | - | 0 | - | - |
| United Business Mail 2019 MN | - | 0 | - | - |
| United Business Solutions Inc NJ | Professional & Technical Services | 5 | $99,213 | - |
| United Cabinet Company dba Kabinart TN | Manufacturing | 0 | - | F |
| United Cerebral Palsy Assoc. of Niagara County Inc., dba Empower NY | Healthcare & Social Assistance | 0 | - | F |
| United Cerebral Palsy Association of Greater Suffolk, Inc. NY | Healthcare & Social Assistance | 0 | - | F |
| United Cerebral Palsy Association of San Diego County CA | - | 0 | - | - |
