| SMART UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| MIXCO UNION LIMITED | Private company limited by shares | Live |
| Sino Core Union Limited | Private company limited by shares | Live |
| UniPhi (HK) Limited | Private company limited by shares | Live |
| GrandChina Union Group Co., Limited | Private company limited by shares | Live |
| UNION PROFIT TRANSPORTATION SERVICES COMPANY LIMITED | Private company limited by shares | Dissolved |
| LOGIS UNITRANS (CHINA) LIMITED | Private company limited by shares | Live |
| United Win Technology Limited | Private company limited by shares | Dissolved |
| USA UNION LANE GROUP LIMITED | Private company limited by shares | Live |
| Universality 9 Co., LIMITED | Private company limited by shares | Live |
| UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| CHINA SHIYOU JUE UNIFIED NATURAL SHARE CO., LIMITED | Private company limited by shares | Dissolved |
| HONOUR UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION CORPORATION LIMITED | Private company limited by shares | Live |
| FIX UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNIQUEPRO HI-TECH CO., LIMITED | Private company limited by shares | Dissolved |
| UNION TRADING INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BEST UNION (HK) INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| UNION CHEER LIMITED | Private company limited by shares | Live |
| Union Power Sports Centre Limited | Private company limited by shares | Live |
| UNION ACT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| DRAGON UNITY INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION CHAMPION INTERNATIONAL DEVELOP LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNION RICH COMPANY LIMITED | Private company limited by shares | Live |
| UNITED ARTISTS LIMITED | Private company limited by shares | Live |
| UNITED NATIONS EDUCATION INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Live |
| UNITED ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| Universal Logistic Investment Limited | Private company limited by shares | Live |
| Innovation Commonweal Union Limited | Private company limited by shares | Live |
| CORPORATE UNIVERSAL LIMITED | Private company limited by shares | Live |
| ORIENTAL UNITED ENTERPRISE LIMITED | Private company limited by shares | Live |
| ASIAN HAIRDRESSING AND BEAUTY COSMETIC UNION LIMITED | Private company limited by shares | Dissolved |
| SMART UNION MOTORS (ASIA) COMPANY LIMITED | Private company limited by shares | Live |
| Hongchen Union (H.K) Co., Limited | Private company limited by shares | Live |
| Uniting Limited | Private company limited by shares | Live |
| TAIFENG UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION VALUE LIMITED | Private company limited by shares | Live |
| UNION WORLD LIMITED | Private company limited by shares | Live |
| HONGKONG YOUNG UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| WORLD UNION CONSULTING (HK) CO., LIMITED | Private company limited by shares | Live |
| Universal Payment Group Limited | Private company limited by shares | Dissolved |
| LED CHINA CHANNEL UNION LIMITED | Private company limited by shares | Dissolved |
| CHINA INTERNATIONAL SENIOR CARE INDUSTRY UNION LIMITED | Private company limited by shares | Live |
| UNITED BEST MERCHANDISING CO., LIMITED | Private company limited by shares | Live |
| Uniffer Holding (Hongkong) Limited | Private company limited by shares | Live |
| UNION PEARL CHINA LIMITED | Private company limited by shares | Live |
| UNITAMI (H. K.) LIMITED | Private company limited by shares | Live |
| GREAT UNION ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| China Union Investment Management Group Limited | Private company limited by shares | Dissolved |
| UNIVERSAL REPUTABLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| OCEAN UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION GLOBAL CORPORATION LIMITED | Private company limited by shares | Live |
| UNION FOCUS INVESTMENTS LIMITED | Private company limited by shares | Live |
| United Crown (Shenzhen) Limited | Private company limited by shares | Live |
| EASY UNITY LIMITED | Private company limited by shares | Live Commenced dormancy on 28-Oct-2013 |
| UNITOPIA MARKETING LIMITED | Private company limited by shares | Live |
| Universal Supply Chain Management Co., Limited | Private company limited by shares | Live |
| UNION FAITH INSURANCE CARE LIMITED | Private company limited by shares | Live |
| UNIGLOBE MATERIAL CO., LIMITED | Private company limited by shares | Live |
| UNIFIED COMMUNICATIONS (CHINA) CO., LIMITED | Private company limited by shares | Live |
| UNIVERSE FINANCE LIMITED | Private company limited by shares | Live |
| UNIVERSAL CORPORATE MANAGEMENT LIMITED | Private company limited by shares | Live |
| RICHFIELD UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION CORPORATE MANAGEMENT LIMITED | Private company limited by shares | Live |
| United Top Metals Co., Limited | Private company limited by shares | Dissolved |
| GEOTECH UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| University Health Business Limited | Private company limited by shares | Dissolved |
| HONGKONG UNITED MEDICAL INVESTMENT GROUP SHARE LIMITED | Private company limited by shares | Live |
| ALL UNION TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| HUICHENG UNION GROUP LIMITED | Private company limited by shares | Live |
| Grand United Technology Limited | Private company limited by shares | Live |
| UNIQUE SMART LIMITED | Private company limited by shares | Live |
| Union (HK) Technology Co., Limited | Private company limited by shares | Live |
| UNITED LAISEE (HK) IMPORT & EXPORT CO., LIMITED | Private company limited by shares | Live |
| BEAUTY UNION LIMITED | Private company limited by shares | Live |
| UNION EVER LIMITED | Private company limited by shares | Live |
| Furinkazan Financial Services Head Office of Union-Firm (China) Co., Limited | Private company limited by shares | Live |
| HK GOODS UNION INT'L GROUP CO., LIMITED | Private company limited by shares | Live |
| GLORY UNITED LIMITED | Private company limited by shares | Live |
| UNION WORLD INTERNATIONAL (HK) LIMITED | Private company limited by shares | Dissolved |
| UNITECH ELECTRONICS (H.K.) CO., LIMITED | Private company limited by shares | Live |
| HK EAST UNION INTERNATIONAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Unitrans Of The World Business Consultation Co., Limited | Private company limited by shares | Live |
| UNITED NATIONS ECONOMIC AND TRADE GROUP CO., LIMITED | Private company limited by shares | Live |
| UNITED BUSINESS XPRESS LIMITED | Private company limited by shares | Live |
| UNION BROTHER INVESTMENT LIMITED | Private company limited by shares | Live |
| BB Unit Co. Limited | Private company limited by shares | Live |
| United Trading Asia Limited | Private company limited by shares | Live |
| UNIVERSE ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| UNION GOLDEN CORPORATION LIMITED | Private company limited by shares | Live |
| UNION FAVOUR TRADE LIMITED | Private company limited by shares | Live |
| HONGKONG UNION INTERNATIONAL INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| TRENDER UNIVERSAL (H. K.) GROUP LIMITED | Private company limited by shares | Live |
| Wa Yuen Union International Limited | Private company limited by shares | Live |
| UNION STANDARD INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| SUNNY UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GLOBAL HAPPINESS UNION CO., LIMITED | Private company limited by shares | Live |
| CREATIVE UNION ABLE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| AMPLE UNITY LIMITED | Private company limited by shares | Live |