| U.I.A. WORLDWIDE LOGISTICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| U.I.C. ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UICCHINA LIMITED | Private company limited by shares | Live |
| UICE ASIA LIMITED | Private company limited by shares | Live |
| UICO GLOBAL (HK) CO., LIMITED | Private company limited by shares | Live |
| UICT HK Co Limited | Private company limited by shares | Live |
| Uictory Limited | Private company limited by shares | Live |
| UIDEA LIMITED | Private company limited by shares | Live |
| UIDEA TOOL TECH (HK) COMPANY LIMITED | Private company limited by shares | Live |
| U-IDEAL LIMITED | Private company limited by shares | Live |
| UIGET BMC Limited | | Live |
| ENERES & UIHC TRADING LIMITED | | Live |
| UIHC ITB TRADING LIMITED | | Live |
| UiiWE INC LIMITED | Private company limited by shares | Live |
| FRENCH UIKE (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UiLED Company Limited | Private company limited by shares | Live |
| UIM, HPD LIMITED | Private company limited by shares | Live |
| UIMCO LIMITED | Private company limited by shares | Dissolved |
| UIMCOM LIMITED | Private company limited by shares | Live |
| UIMI (CHINA) CO., LIMITED | Private company limited by shares | Live |
| UIMI Group Limited | Private company limited by shares | Live |
| Uimix Limited | | Live |
| UIMIX CO., LIMITED | Private company limited by shares | Live |
| UIMOTO LIMITED | Private company limited by shares | Live |
| Uing Limited | Private company limited by shares | Live |
| UINHAND CO., LIMITED | Private company limited by shares | Live |
| HK UINON MINING LIMITED | Private company limited by shares | Live |
| Uinotech Limited | | Live |
| UINTERNATIONAL LIMITED | | Live |
| UinWin Technology Hong Kong Limited | | Live |
| UION TRADE LIMITED | Private company limited by shares | Live |
| SHENZHEN UIOTECH CO., LIMITED | Private company limited by shares | Live |
| UIP. COMPANY LIMITED | Private company limited by shares | Live |
| UiPath Limited | Private company limited by shares | Live |
| UIRP LIMITED | Private company limited by shares | Live |
| U.I.S. TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UISEE TECHNOLOGIES (Hong Kong) Limited | | Live |
| Uiskey Limited | Private company limited by shares | Live |
| Uiskey Sound Electronics Co., Limited | Private company limited by shares | Live |
| Uista Chem Co., Limited | Private company limited by shares | Live |
| U.I.T. LIMITED | Private company limited by shares | Dissolved |
| UiTM Education CONSULTANCY LIMITED | | Live |
| UItop Technology Company Limited | Private company limited by shares | Live |
| UITOX INSIDE LIMITED | Private company limited by shares | Live |
| UITT GROUP LIMITED | Private company limited by shares | Live |
| UitTek Technology (HK) Co., Limited | Private company limited by shares | Live |
| UiTV Media (HK) Limited | Private company limited by shares | Live |
| UiTV Media (SEA) Limited | Private company limited by shares | Live |