| Sino Unison Industrial Limited | Private company limited by shares | Live |
| Fortune Union Financial Holdings (HongKong) Limited | Private company limited by shares | Live |
| UNITED INNOVATION COMPANY LIMITED | Private company limited by shares | Live |
| Asia Business Association Union Co., Limited | Private company limited by shares | Live |
| UNION MERIT INTERNATIONAL PROPERTIES LIMITED | Private company limited by shares | Live |
| UNITED ENTERPRISE LIMITED | Private company limited by shares | Live |
| Union Fortune Trading & Developing Limited | Private company limited by shares | Live |
| WORLD TECHNOLOGY PROMOTION UNION LIMITED | Private company limited by shares | Live |
| Union Paper Co., Limited | Private company limited by shares | Live |
| ON UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| FOR-EXCHANGE UNITED INT'L ASSET MANAGEMENT PUBLIC LIMITED | Private company limited by shares | Live |
| UNIPHOS HK LIMITED | Private company limited by shares | Live |
| SMART UNIVERSE LIMITED | Private company limited by shares | Live |
| SINO UNION CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE SHIPPING LIMITED | Private company limited by shares | Live |
| UNION FOURNITURES DE CONFECTION CO., LIMITED | Private company limited by shares | Live |
| UNITY SOLUTIONS LIMITED | Private company limited by shares | Live |
| Bright Union Lighting Co., Limited | Private company limited by shares | Live |
| TAIZHOU UNION PLASTIC MOULD CO., LIMITED | Private company limited by shares | Live |
| INBEST UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIFEDERAL LIMITED | Private company limited by shares | Live |
| HONG KONG UNION DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| HONGKONG UNITRANS LOGISTICS LIMITED | Private company limited by shares | Live |
| BEST FORTUNE UNIVERSAL LIMITED | Private company limited by shares | Live |
| LUCKY UNIVERSAL LIMITED | Private company limited by shares | Live |
| Univers HK Trading Limited | Private company limited by shares | Dissolved |
| BIG UNION INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| UNIHECS LIMITED | Private company limited by shares | Live |
| ELITE UNION LIMITED | Private company limited by shares | Live |
| UNION BEST INC LIMITED | Private company limited by shares | Dissolved |
| CHINA UNDERWEAR RESEARCH CENTER LIMITED | Private company limited by shares | Live |
| UNEPAM LIMITED | Private company limited by shares | Live |
| ESEMI UNITED SYSTEM LIMITED | Private company limited by shares | Live |
| Union International Accounting Limited | Private company limited by shares | Live |
| BRITISH UNITED LIMITED | Private company limited by shares | Live |
| SILVER UNION INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| SAGACIOUS INSURANCE AND UNDERWRITING AGENCIES LIMITED | Private company limited by shares | Live |
| Global Union of Chinese Commerce Chamber Limited | Private company limited by shares | Live |
| UNITED NATIONS ASIA EMERGENCY RELIEF SUPPLIES LIMITED | Private company limited by shares | Live |
| CHINA CULTURE ART UNION LIMITED | Private company limited by shares | Live |
| Creativity Union Creative Hongkong Co., Limited | Private company limited by shares | Live |
| HUA UNITED MACHINERY CO., LIMITED | Private company limited by shares | Live |
| UNION PEACE CO., LIMITED | Private company limited by shares | Dissolved |
| SINO INTERNATIONAL YI JING UNION LIMITED | Private company limited by shares | Live |
| UNITED ONE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL FUSION GROUP LIMITED | Private company limited by shares | Live |
| FORTUNATE UNIVERSAL LIMITED | Private company limited by shares | Live |
| JIE UNIVERSE CO., LIMITED | Private company limited by shares | Live Commenced dormancy on 11-Aug-2015 |
| GLORY UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION SINO INTERNATIONAL INDUSTRIAL TRADING LIMITED | Private company limited by shares | Live |
| UNION PIN LIMITED | Private company limited by shares | Live |
| UNION TOP CREATION LIMITED | Private company limited by shares | Live |
| UNION LEAD INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Unison Advisory Limited | Private company limited by shares | Live |
| United States Daopusen Petroleum Group Co., Limited | Private company limited by shares | Live |
| CHINA UNITES THE INVESTMENT GROUP COMPANY LIMITED | Private company limited by shares | Live |
| Union Tech Consultation Limited | Private company limited by shares | Dissolved |
| UNION TEAM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Universe Asia Finance Limited | Private company limited by shares | Live |
| Maxthon Universal Exchange Centre Limited | Private company limited by shares | Live |
| WORLD UNION INC LIMITED | Private company limited by shares | Live |
| UNION PACIFIC LIMITED | Private company limited by shares | Live |
| UNION STAR INC LIMITED | Private company limited by shares | Live |
| UNITED NATION INC LIMITED | Private company limited by shares | Live |
| UNION ENGINEERING CONSULTING LIMITED | Private company limited by shares | Live |
| UNIFAME INDUSTRY LIMITED | Private company limited by shares | Live |
| GEM UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| FAME UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| BMI Underwriters Limited | Private company limited by shares | Live |
| CHAIN UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION KINETIC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL OCEAN HOLIDAY LIMITED | Private company limited by shares | Live |
| VITAL UNION COMPANY LIMITED | Private company limited by shares | Live |
| United States of America Road Maida International Petroleum Group Co., Limited -The- | Private company limited by shares | Live |
| NATION UNION RESOURCE LIMITED | Private company limited by shares | Live |
| Universal Unicon Trading Company Limited | Private company limited by shares | Dissolved |
| CHEER UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| United Export BV Limited | Private company limited by shares | Live |
| Big Union International (HK) Industry Limited | Private company limited by shares | Live |
| CHINA INTERNATIONAL MINE INVESTMENT UNION LIMITED | Private company limited by shares | Live |
| Pay Universe Hong Kong Limited | Private company limited by shares | Live |
| UNION EC LIMITED | Private company limited by shares | Live |
| Way Union Finance Limited | Private company limited by shares | Live |
| CHARM UNION LIMITED | Private company limited by shares | Live |
| SURPLUS UNION LIMITED | Private company limited by shares | Dissolved |
| UNION BENEFIT ASIA LIMITED | Private company limited by shares | Dissolved |
| UNITED STAR ASIA INVESTMENT LIMITED | Private company limited by shares | Live |
| Cloud union Group Limited | Private company limited by shares | Live |
| Silver Union Capital (HK) Limited | Private company limited by shares | Live |
| UNISON WOHONG INDUSTRY LIMITED | Private company limited by shares | Live |
| UNIFAMCO INVESTMENTS LIMITED | Private company limited by shares | Live |
| RISING UNIVERSAL LIMITED | Private company limited by shares | Live |
| Unicor HK Limited | Private company limited by shares | Live |
| WIN UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| GLOBAL SHOES UNION LIMITED | Private company limited by shares | Live |
| UNI-WAY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINOLINK UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNION WAY INC LIMITED | Private company limited by shares | Live |
| UNEO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL POINT LIMITED | Private company limited by shares | Live |