| 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 |
| unknown Creative 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 |
| UNION CHANCE TRADING LIMITED | Private company limited by shares | Live |
| JM UNIVERSAL EXPO LIMITED | Private company limited by shares | Live |
| UNIVERSE ENTERPRISE LIMITED | Private company limited by shares | Live |
| SHENZHEN UNITECH TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| ELITE UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION TECHNOLOGY DEVELOP LIMITED | Private company limited by shares | Live |
| LIGHTHOUSE UNION LIMITED | Private company limited by shares | Live |
| SHANDONG UNION TYRE CO., LIMITED | Private company limited by shares | Live |
| T & L united LIMITED | Private company limited by shares | Dissolved |
| GOOD UNION (CHINA) LIMITED | Private company limited by shares | Live |
| UNIPRO LIMITED | Private company limited by shares | Live |
| GanBei Unlimited Limited | Private company limited by shares | Live Commenced dormancy on 12-Dec-2014 |
| EVER UNION CREATION LIMITED | Private company limited by shares | Live |
| CHINA INTERNATIONAL UNITED GENERAL AVIATION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION EARN LIMITED | Private company limited by shares | Live |
| UNITED WISDOM LIMITED | Private company limited by shares | Live |
| WEALTHY UNICORN LIMITED | Private company limited by shares | Live |
| HARBOUR UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION CHINA GROUP LIMITED | Private company limited by shares | Live |
| USA Union Nuohua Group Pharmaceutical Limited | Private company limited by shares | Live |
| UNIQUEPOWER CO., LIMITED | Private company limited by shares | Live |
| ALL-CHINA RETURNEES UNION LIMITED | Private company limited by shares | Live |
| UNIVERSE INCOME LIMITED | Private company limited by shares | Live |
| UNITED METALS & MINERALS LIMITED | Private company limited by shares | Dissolved |
| RUGBY UNION CLUB LIMITED -THE- | Company limited by guarantee | Live |
| UNION CITY INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION WIN PACKAGING LIMITED | Private company limited by shares | Live |
| UNWIRE LIMITED | Private company limited by shares | Live |
| UNION TOWN LIMITED | Private company limited by shares | Live |
| RUI FU UNION SHIPPING CO., LIMITED | Private company limited by shares | Live |
| Reach Union Limited | Private company limited by shares | Live |
| UNION CHINA HK ENTERPRISE LIMITED | Private company limited by shares | Dissolved |