| International Hong-Style Taichi Union Limited | Private company limited by shares | Live |
| UNIVERSE ENGINEERING AND CONSULTANCY LIMITED | Private company limited by shares | Live |
| UNIVERSAL HOST INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIWELL TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| United Dynasty Investment Limited | Private company limited by shares | Live |
| IDEAL UNION LIMITED | Private company limited by shares | Live |
| WISE UNIVERSAL LIMITED | Private company limited by shares | Live |
| PRESTIGE UNIVERSE LIMITED | Private company limited by shares | Live |
| DONGGUAN UNION COSMETICS LIMITED | Private company limited by shares | Live |
| Union Coronet Hong Kong Limited | Private company limited by shares | Live |
| Union Apex Engineering Limited | Private company limited by shares | Live |
| UNION TRADE DEVELOPMENT (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Universe (HK) Engineering Limited | Private company limited by shares | Live |
| UNION EAST INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| Universal Unite Capital Limited | Private company limited by shares | Live |
| HONGKONG GLOBAL UNION CO., LIMITED | Private company limited by shares | Live |
| Universal Castle Products Company Limited | Private company limited by shares | Live |
| STC UNITED HOLDING HK LIMITED | Private company limited by shares | Live |
| SUPER UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNIVERSE FAITH TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Universal Unite New Material Investment Limited | Private company limited by shares | Live |
| AFFLUENT UNITED INC. LIMITED | Private company limited by shares | Live |
| OUTSTANDING UNION ASSET MANAGEMENT LIMITED | Private company limited by shares | Live |
| UniqueU Limited | Private company limited by shares | Live |
| Union Supply Chain Management Co., Limited | Private company limited by shares | Live |
| UNITED LINKER INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION STAR HOLDINGS LIMITED | Private company limited by shares | Live |
| Universal Trade (Hong Kong) Co., Limited | Private company limited by shares | Live |
| Chinaway Universal Limited | Private company limited by shares | Live |
| UNION LINK (HK) LIMITED | Private company limited by shares | Live |
| UNITED UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION OCEAN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION MASTER INVESTMENT LIMITED | Private company limited by shares | Live |
| STAR UNION INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| SINO UNION GROUP LIMITED | Private company limited by shares | Live |
| UNITECH UNIVERSAL LIMITED | Private company limited by shares | Live |
| GLOBE UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNITED MIND LIMITED | Private company limited by shares | Live |
| UNIBRIGHT COMMERCIAL LIMITED | Private company limited by shares | Live |
| UNIONS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SHENZHEN UNIVERSITY ALUMNI ASSOCIATION (HK & MACAU) LIMITED | Private company limited by shares | Live |
| WELL UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| XR UNIVERSAL ENTERTAINMENT HOLDING LIMITED | Private company limited by shares | Live |
| GLORY UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| RICH UNIVERSAL COMPANY LIMITED | Private company limited by shares | Live |
| Union Professional Services Limited | Private company limited by shares | Live |
| Union Intelligent International Co., Limited | Private company limited by shares | Live |
| UNITQ LIMITED | Private company limited by shares | Live |
| China Health Union Technology Limited | Private company limited by shares | Live |
| UNIC LOFT ENTERPRISES LIMITED | Private company limited by shares | Live |
| Unitech Network Co., Limited | Private company limited by shares | Live |
| UNION SUNSHINE LIMITED | Private company limited by shares | Live |
| TOPWELL UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| HONGKONG PAN UNION MARINE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| UNITED DYNASTY LIMITED | Private company limited by shares | Live |
| UNION MASTER TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| NASA UNIVERSAL CO., LIMITED | Private company limited by shares | Live |
| Mcdon Union Development Limited | Private company limited by shares | Live |
| STU Union Trading Co., Limited | Private company limited by shares | Live |
| Union Hi-Tech Development Limited | Private company limited by shares | Live |
| UNITY PLAT TRADE CO., LIMITED | Private company limited by shares | Live |
| UNITED INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| UNIRICH MARINE LIMITED | Private company limited by shares | Live |
| UNITED FINANCIAL LIMITED | Private company limited by shares | Live |
| WARM UNIVERSE LIMITED | Private company limited by shares | Live |
| GLOBAL UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNICODE COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL IDEAS LIMITED | Private company limited by shares | Live |
| Union Metals Trading Limited | Private company limited by shares | Live |
| HK UNICARE LIMITED | Private company limited by shares | Live |
| EZ UNION LIMITED | Private company limited by shares | Live |
| KENT UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| KING UNION PROPERTY CONSULTANTS LIMITED | Private company limited by shares | Live |
| WAN SUI UNIVERSAL PROPERTIES LIMITED | Private company limited by shares | Live |
| CHANCE UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIVERSE STOCK CORPORATION LIMITED | Private company limited by shares | Live |
| United Hawk Commercial Limited | Private company limited by shares | Live |
| UNITED BRAY VALVE GROUP SHARES (CHINA) CO., LIMITED | Private company limited by shares | Live |
| UNION TOPPER DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HK Decheng International Union Industry Group Limited | Private company limited by shares | Live |
| UNION INDUSTRY GROUP LIMITED | Private company limited by shares | Live |
| United Vines Limited | Private company limited by shares | Live |
| Unikong Capital Management Limited | Private company limited by shares | Live |
| UNION RICH INDUSTRY LIMITED | Private company limited by shares | Live |
| Unikid International Education Limited | Private company limited by shares | Live |
| YU YOU PROPERTY UNION GROUP LIMITED | Private company limited by shares | Live |
| Universal Medical Research Limited | Private company limited by shares | Live |
| UNION HUGE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HERO UNITED LIMITED | Private company limited by shares | Live |
| SURE UNIQUE LIMITED | Private company limited by shares | Live |
| GIANT UNION LIMITED | Private company limited by shares | Live |
| UNION LUCKY TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UPLUS UNION FURNITURE (HK) CO., LIMITED | Private company limited by shares | Live |
| UNIVERSAL GROUPS HOLDING LIMITED | Private company limited by shares | Live |
| Union Rich Shipping Limited | Private company limited by shares | Live |
| Roc Universe Technology Limited | Private company limited by shares | Live |
| Top Union Auto Limited | Private company limited by shares | Live |
| UNION HANSON TRADE LIMITED | Private company limited by shares | Live |
| HK Union One Trading Limited | Private company limited by shares | Live |
| UNION ACT LIMITED | Private company limited by shares | Live |