| UNION TACT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE OVERSEAS LIMITED | Private company limited by shares | Live |
| DEAKEN UNITED LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNION GOLD HONG KONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SYSTEM TRADING LIMITED | Private company limited by shares | Live |
| UNION BASE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIGLOBEX LIMITED | Private company limited by shares | Live |
| UNION RICH INTERNATIONAL INC. LIMITED | Private company limited by shares | Live |
| UNION RISE ENTERPRISES DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GOLDRICH UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SYSTEMS MANAGEMENT LIMITED | Private company limited by shares | Live |
| HONG KONG SURVIVAL UNION CONSULTANTS COMPANY LIMITED | Private company limited by shares | Live |
| BEST UNION WORLDWIDE LIMITED | Private company limited by shares | Live |
| MEGA UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| Chinese Entrepreneurs E-business Union Co., Limited | Private company limited by shares | Live |
| TRILLIONS UNION LIMITED | Private company limited by shares | Live |
| CHINA UNION SURVEYORS LIMITED | Private company limited by shares | Live |
| GAIN UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION AGRO-CHEMICAL COMPANY LIMITED | Private company limited by shares | Live |
| BRIGHT UNIVERSE HK CO., LIMITED | Private company limited by shares | Live |
| UNION SUCCESS INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| JOINT UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION SYSTEM INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION TALENT (ASIA) LIMITED | Private company limited by shares | Live |
| MORAL UNION LIMITED | Private company limited by shares | Live |
| UNIVERSAL FORTUNE ASIA LIMITED | Private company limited by shares | Live |
| CENTURY UNITED LIMITED | Private company limited by shares | Live |
| UNION DELUXE INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIVERSAL WISDOM LIMITED | Private company limited by shares | Live |
| Unisource Trading Limited | Private company limited by shares | Dissolved |
| UNIVEST LIMITED | Private company limited by shares | Dissolved |
| UNI-COMMERCE (CHINA) INVESTMENTS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| NOBEL UNITED CO., LIMITED | Private company limited by shares | Live |
| LEADER UNION CORPORATION LIMITED | Private company limited by shares | Live |
| Uniquo Limited | Private company limited by shares | Live |
| UNITED CO-OPERATION GROUP PTE LIMITED | Private company limited by shares | Live |
| GOLDEN UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| Specialty Trade United Limited | Private company limited by shares | Dissolved |
| WINNING UNIVERSAL LIMITED | Private company limited by shares | Live |
| Five Union Technology Limited | Private company limited by shares | Live |
| NANJING UNION CHEMICAL CO., LIMITED | Private company limited by shares | Dissolved |
| LIKE UNIVERSAL LIMITED | Private company limited by shares | Live |
| CYBER UNIVERSE LIMITED | Private company limited by shares | Live |
| UNION MASS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Hysight Union Group Holdings Limited | Private company limited by shares | Live |
| MEGA UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNITED CROWN INVESTMENT LIMITED | Private company limited by shares | Live |
| GLOBAL ZHESHANG UNION LIMITED | Private company limited by shares | Live |
| CHINA UNITED PROPERTIES LIMITED | Private company limited by shares | Live |
| Wellrise United Gain Limited | Private company limited by shares | Live |
| MASTER UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Top Unions Inc Limited | Private company limited by shares | Live |
| H. K UNION DZUK BUN ARCHITECT OFFICE LIMITED | Private company limited by shares | Live |
| UNIQ TRADE LIMITED | Private company limited by shares | Live |
| Union Peak Company Limited | Private company limited by shares | Live |
| K & S UNIFORM COMPANY LIMITED | Private company limited by shares | Live |
| YUNDING INTERNATIONAL UNION CO., LIMITED | Private company limited by shares | Dissolved |
| HK UNIVERSAL YUEKE CATERING CHAIN LIMITED | Private company limited by shares | Live |
| Ningbo Unico-Power Co., Limited | Private company limited by shares | Live |
| UNIVERSAL FACTORY LIMITED | Private company limited by shares | Live |
| INTERNATIONAL EDUCATION UNION (CHINA) CO., LIMITED | Private company limited by shares | Live |
| SHULONG UNIVERSE GROUP CO., LIMITED | Private company limited by shares | Live |
| UNION PAY CURRENCY EXCHANGE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ULTRA UNIVERSAL TRADING (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNICLEVER HK LIMITED | Private company limited by shares | Live |
| CHINA ONLINE CLIENT UNION CO., LIMITED | Private company limited by shares | Live |
| SMART UNIVERSE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNIVERSAL DISPLAY LIMITED | Private company limited by shares | Live |
| UNION ROYAL LIMITED | Private company limited by shares | Live |
| Unitedclouds Limited | Private company limited by shares | Dissolved |
| UNION HOLDING GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| UNION ELECTRONIC INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| HONGKONG UNION E-TRADING LIMITED | Private company limited by shares | Live |
| MIDNIGHT SUN UNIVERSE LIMITED | Private company limited by shares | Live |
| UNIVERSELITE CO., LIMITED | Private company limited by shares | Live |
| Union Honest Agency Limited | Private company limited by shares | Live |
| UNIVERSAL HOLDING GROUP LIMITED | Private company limited by shares | Live |
| UNIWELL CORPORATION LIMITED | Private company limited by shares | Live |
| UNION LUCK PROPERTIES LIMITED | Private company limited by shares | Live |
| SHENZHEN UNIMATA DIGITAL TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| KINGS UNION LIMITED | Private company limited by shares | Live |
| THINKER UNION INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| CHINESE YIJING UNION CO., LIMITED | Private company limited by shares | Live |
| UNION SUNSHINE ELECTRONICS (HK) LIMITED | Private company limited by shares | Live |
| WISE UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UCI UNION DESIGNING (CHINA) CO., LIMITED | Private company limited by shares | Live |
| FIELD UNION CO., LIMITED | Private company limited by shares | Live |
| UNITED VIEW CREATION LIMITED | Private company limited by shares | Live |
| BUSINESS UNITS CENTER LIMITED | Private company limited by shares | Live |
| CENTURY UNICORN LIMITED | Private company limited by shares | Live |
| CHINA FACTORY UNION CO., LIMITED | Private company limited by shares | Live |
| UNIWELLS INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| ZHONG FEI UNION INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| MALAK UNIVERSAL TRADING LIMITED | Private company limited by shares | Live |
| AG UNION (HK) INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| EVERWIN UNION CO., LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE FIRST ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| UNIQUE VENTURE LIMITED | Private company limited by shares | Dissolved |
| UNION MATE INVESTMENT LIMITED | Private company limited by shares | Live |