| US Fair Ride Inc. | 🍎 | 1 | 5.0★ | Travel |
| US Foods | 🍎 | 1 | 4.9★ | Food & Drink |
| US Market | 🍎 | 1 | 4.8★ | Business |
| US Mobile | 🍎 | 1 | 3.7★ | Utilities |
| US Payments | 🍎 | 1 | 4.0★ | Finance |
| US Premium Finance | 🍎 | 1 | — | Business |
| US RETAILERS LLC | 🍎 | 1 | 4.8★ | Utilities |
| US SAILING | 🍎 | 1 | 4.8★ | Business |
| USA Basketball | 🍎 | 1 | 4.9★ | Sports |
| USA Hockey | 🍎 | 1 | 5.0★ | Sports |
| USA Medical Surplus LLC | 🍎 | 1 | — | Shopping |
| USA Real Estate Media | 🍎 | 1 | 2.8★ | Education |
| USA Sport Statistics LLC | 🍎 | 1 | 4.5★ | Sports |
| USA Swimming | 🍎 | 1 | 1.4★ | Sports |
| USAP | 🍎 | 1 | 2.1★ | Entertainment |
| USAR COMMERCE TECHNOLOGIES PVT LTD | 🍎 | 1 | 4.8★ | Shopping |
| USAR LLC | 🍎 | 1 | 4.8★ | Education |
| USEDO INTERNATIONAL COMPANY | 🍎 | 1 | 4.3★ | Shopping |
| USER COMMUNICATION TECHNOLOGIES LLC | 🍎 | 1 | 4.6★ | Social Networking |
| USERJOY HONG KONG | 🍎 | 1 | 3.9★ | Games |
| USFans | 🍎 | 1 | 3.2★ | Shopping |
| USITT | 🍎 | 1 | 4.5★ | Entertainment |
| USMART SECURITIES (SINGAPORE) PTE. LTD. | 🍎 | 1 | 4.6★ | Finance |
| USMG INC | 🍎 | 1 | — | Business |
| USNaviguide LLC | 🍎 | 1 | 3.5★ | Weather |
| USomnia. Inc. | 🍎 | 1 | — | Health & Fitness |
| UT Austin School of Nursing | 🍎 | 1 | — | Health & Fitness |
| UT Golf Club | 🍎 | 1 | 2.9★ | Lifestyle |
| UT Institute for Public Service (TN) | 🍎 | 1 | — | Reference |
| UT app | 🍎 | 1 | 4.8★ | Food & Drink |
| UTA AI Inc. | 🍎 | 1 | 4.6★ | Lifestyle |
| UTIITSL | 🍎 | 1 | 2.2★ | Business |
| UTILITECH LTD | 🍎 | 1 | 4.7★ | Graphics & Design |
| UTR | 🍎 | 1 | 4.6★ | SPORTS |
| UTSOURCE HOLDING COMPANY LIMITED | 🍎 | 1 | 3.7★ | Shopping |
| UULA Technologies | 🍎 | 1 | 4.7★ | Education |
| UVI TECH SAPI DE CV | 🍎 | 1 | 4.7★ | Shopping |
| UVNV, Inc. | 🍎 | 1 | 4.7★ | UTILITIES |
| UW Credit Union | 🍎 | 1 | 4.7★ | Finance |
| UWM | 🍎 | 1 | 1.5★ | Finance |
| UX APP BUILDER LIMITED | 🍎 | 1 | — | Social Networking |
| UX First | 🍎 | 1 | 4.8★ | Book |
| UXGROUP L.L.C-FZ | 🍎 | 1 | 3.9★ | Productivity |
| UXPin | 🍎 | 1 | 1.8★ | Utilities |
| UXtweak j. s. a. | 🍎 | 1 | — | Developer Tools |
| UZABASE, Inc. | 🍎 | 1 | 4.4★ | News |
| UZMI Bank | 🍎 | 1 | 4.8★ | Finance |
| UZUM TECHNOLOGIES MChJ. | 🍎 | 1 | 4.2★ | Shopping |
| UZURV HOLDINGS, INC | 🍎 | 1 | 4.7★ | Travel |
| Uba Project srl semplificata | 🍎 | 1 | — | Sports |