| FULL UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION BRIGHT INTERNATIONAL PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL LOGISTICS LIMITED | Private company limited by shares | Live |
| UNION TRADE ENTERPRISES LIMITED | Private company limited by shares | Live |
| BEST UNION (H.K.) LIMITED | Private company limited by shares | Live |
| ASIA UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BEST UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION GOLD HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION GOLD TRADING LIMITED | Private company limited by shares | Live |
| Blessed Harvest Universal Limited | Private company limited by shares | Live |
| UNIQUE CHINA LIMITED | Private company limited by shares | Live |
| HERO UNITED LIMITED | Private company limited by shares | Live |
| GREEN UNION LIMITED | Private company limited by shares | Live |
| Insurance Union Company Limited | Private company limited by shares | Live |
| Yoga Union Limited | Private company limited by shares | Live |
| UNITED NATIONS EMERGENCY RELIEF MATERIAL CIRCULATION COMPANY LIMITED | Private company limited by shares | Live |
| GOOD UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| GREAT UNION CHINA LIMITED | Private company limited by shares | Live |
| UNION NATION (CHINA) LIMITED | Private company limited by shares | Live |
| CHINA SUPER CAR UNION CO., LIMITED | Private company limited by shares | Live |
| UNITED SKY TRADING LIMITED | Private company limited by shares | Live |
| UNION SAILS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION CHINA CORPORATION LIMITED | Private company limited by shares | Live |
| ASIA UNION LIMITED | Private company limited by shares | Live |
| CLOUD UNION ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| UNION TRADE GROUP LIMITED | Private company limited by shares | Dissolved |
| GOOD UNIVERSAL TRADING LIMITED | Private company limited by shares | Dissolved |
| MARKET UNION GROUP LIMITED | Private company limited by shares | Live |
| UNIVERSE LIGHTING CO., LIMITED | Private company limited by shares | Dissolved |
| GLOBAL UNI-TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UNION COMMODITIES LIMITED | Private company limited by shares | Live |
| Pure Union Technology Limited | Private company limited by shares | Dissolved |
| CHINA WINE UNITED EXCHANGE LIMITED | Private company limited by shares | Live |
| DIGITAL UNION GROUP (CHINA) LIMITED | Private company limited by shares | Live |
| CROWN UNIONS LIMITED | Private company limited by shares | Live |
| HK UNITECH TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Union Gospel Fellowship Limited | Company limited by guarantee | Live |
| UNION BUSINESS INDUSTRY LIMITED | Private company limited by shares | Live |
| FULLRICH UNION LIMITED | Private company limited by shares | Live |
| Forest Union Enterprise (HK) Co., Limited | Private company limited by shares | Live |
| PACIFIC UNITY LIMITED | Private company limited by shares | Live |
| 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 |
| UNANIME 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 |