| UnionDigital Bank Inc. | 🍎 | 1 | 2.5★ | Finance |
| UnionPay International Co., Ltd. | 🍎 | 1 | 4.0★ | Finance |
| Uniorbit | 🍎 | 1 | 4.7★ | Finance |
| Uniper | 🍎 | 1 | 4.6★ | Health & Fitness |
| Unique Business Systems | 🍎 | 1 | 5.0★ | Business |
| Unique Digital Publishing | 🍎 | 1 | 4.6★ | Education |
| Unique Fitness Holbrook Corp | 🍎 | 1 | 4.8★ | Health & Fitness |
| Unique Glow | 🍎 | 1 | — | Lifestyle |
| Unique Heritage Media | 🍎 | 1 | 4.6★ | Education |
| UniqueBits, LLC | 🍎 | 1 | 4.8★ | Health & Fitness |
| Unirest Technologies LLC | 🍎 | 1 | 4.7★ | Food & Drink |
| Unisolus | 🍎 | 1 | 5.0★ | Health & Fitness |
| Unison Limited Liability Company | 🍎 | 1 | 5.0★ | Business |
| Unistellar | 🍎 | 1 | 3.8★ | Education |
| Uniswap Labs | 🍎 | 1 | 4.8★ | Finance |
| Unit Numberfive oHG | 🍎 | 1 | 4.5★ | Productivity |
| Unit Radius LLC | 🍎 | 1 | — | GAMES_CASINO |
| Unit Visions | 🍎 | 1 | 5.0★ | Entertainment |
| Unitary Enterprise A1 | 🍎 | 1 | 4.2★ | Entertainment |
| Unite Community Church | 🍎 | 1 | 5.0★ | Education |
| United Agricultural Cooperative, Inc. | 🍎 | 1 | — | Business |
| United Airlines | 🍎 | 1 | 4.8★ | Travel |
| United Bank UK | 🍎 | 1 | 5.0★ | Finance |
| United Bank of Albania | 🍎 | 1 | 3.0★ | Finance |
| United Business Bank | 🍎 | 1 | — | Finance |
| United Cajun Navy | 🍎 | 1 | 4.9★ | Weather |
| United Capital Plc | 🍎 | 1 | 4.7★ | Finance |
| United Center / YinzCam | 🍎 | 1 | — | SPORTS |
| United Community Bancorp, Inc. | 🍎 | 1 | 4.8★ | Finance |
| United Community Bank, LA | 🍎 | 1 | 5.0★ | Finance |
| United Community Banks Inc | 🍎 | 1 | 4.7★ | Finance |
| United Country, Rogers Auctioneers, Inc. | 🍎 | 1 | — | Business |
| United Daily News Company Limited | 🍎 | 1 | 3.8★ | Education |
| United Dairy Farmers, INC | 🍎 | 1 | 4.8★ | Food & Drink |
| United Electric Coop | 🍎 | 1 | 4.5★ | Utilities |
| United Financial Credit Union | 🍎 | 1 | 4.8★ | Finance |
| United Group B.V. | 🍎 | 1 | 4.4★ | Utilities |
| United Health Services, Inc. | 🍎 | 1 | 5.0★ | Medical |
| United Innovation Solutions LLC | 🍎 | 1 | 5.0★ | Medical |
| United Intelligence | 🍎 | 1 | 5.0★ | Education |
| United Kiosk AG | 🍎 | 1 | 4.1★ | Magazines & Newspapers |
| United Markets Teknoloji Snaayi Ic Ve Dis Ticaret Limited Sirketi | 🍎 | 1 | 3.6★ | Shopping |
| United Nations Convention to Combat Desertification | 🍎 | 1 | 5.0★ | News |
| United Payment Systems LLC | 🍎 | 1 | 5.0★ | Business |
| United Pharmaceuticals Medical Supply Co. Ltd. | 🍎 | 1 | 4.5★ | Shopping |
| United Real Estate Fort Lauderdale, LLC | 🍎 | 1 | — | Education |
| United States Department of the Army, TAK Product Center | 🍎 | 1 | 3.6★ | Navigation |
| United States Tennis Association Pacific Northwest | 🍎 | 1 | 4.0★ | Health & Fitness |
| United Supermarkets, LLC | 🍎 | 1 | 4.5★ | Shopping |
| United Township High School District No 30 | 🍎 | 1 | — | Sports |