| Goodwill Union Service Limited | Private company limited by shares | Live |
| UNIONWEALTH INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION STAR FAR EAST LIMITED | Private company limited by shares | Live |
| UNITED 88 LIMITED | Private company limited by shares | Live |
| UNIVERSAL 88 LIMITED | Private company limited by shares | Live |
| Fitness Union International Group Limited | Private company limited by shares | Live |
| UNITED GOLD DEALERS LIMITED | Private company limited by shares | Live |
| UNITED ISLAMIC WELFARE UNION LIMITED | Company limited by guarantee | Live |
| UNION STANDARD INC LIMITED | Private company limited by shares | Live |
| GREAT UNION COMPUTER LIMITED | Private company limited by shares | Live |
| UNITED PLASTIC CO., LIMITED | Private company limited by shares | Live |
| ETERNAL UNION (ASIA) LIMITED | Private company limited by shares | Live |
| European Union Sustainable Urbanization Alliance Limited | Private company limited by shares | Live |
| MAIN UNISON LIMITED | Private company limited by shares | Live |
| UNIHOMY (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SINO UNION LIMITED | Private company limited by shares | Live |
| TECH UNITED LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIAL GROUP CO., LIMITED | Private company limited by shares | Live |
| NINGBO GENERAL UNION CO., LIMITED | Private company limited by shares | Live |
| UNION BRIDGE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GLORIOUS UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HONGKONG INTERNATIONAL BUYERS UNION CO. LIMITED | Private company limited by shares | Live |
| UNIVERSAL MATERIAL TRADING LIMITED | Private company limited by shares | Live |
| MCC SINO UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Unic Memory Technology (Hongkong) Limited | Private company limited by shares | Live |
| MIRACLE UNDERWEAR LIMITED | Private company limited by shares | Live |
| HK (ZJ) UNIVERSAL BUSINESS SECRETARY LIMITED | Private company limited by shares | Live |
| Trade Universe Limited | Private company limited by shares | Live |
| Unifloor (HongKong) Limited | Private company limited by shares | Live |
| Community Network Union Limited | Company limited by guarantee | Dissolved |
| MODA UNION HK CO., LIMITED | Private company limited by shares | Live |
| ASIAN UNION CONSULTANT LIMITED | Private company limited by shares | Live |
| HONG KONG UNION INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| International Graphene Industry Union Limited | Private company limited by shares | Live |
| UNION CITY TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNIQUE SOLUTIONS MOLD LIMITED | Private company limited by shares | Live |
| Unitive Limited | Private company limited by shares | Live |
| SUNNY UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNIQUE FANCY LIMITED | Private company limited by shares | Live |
| YF UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION FIELD HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION WISH INVESTMENTS LIMITED | Private company limited by shares | Live |
| Chinese medical union (China) Limited | Private company limited by shares | Live |
| UNITED FAITHFUL LIMITED | Private company limited by shares | Live |
| UNITEAM LIMITED | Private company limited by shares | Live |
| UNIVERSAL TOP LIMITED | Private company limited by shares | Live |
| UniStrong Investment Co., Limited | Private company limited by shares | Live |
| UNION DRAGON LIMITED | Private company limited by shares | Live |
| WISDOM FOR UNITY LIMITED | Company limited by guarantee | Live |
| ANDY UNION LIMITED | Private company limited by shares | Live |
| Nagi Universal Noodle Limited | Private company limited by shares | Live |
| UNION SUNWORLD LIMITED | Private company limited by shares | Live |
| UNION SKY WEALTH LIMITED | Private company limited by shares | Live |
| ARISUN UNDERWRITING LIMITED | Private company limited by shares | Live |
| UNITED BEVERAGES COMPANY, LIMITED | Private company limited by shares | Live |
| Max Universe Limited | Private company limited by shares | Live |
| Unstoppable Limited | Private company limited by shares | Live |
| Hee United Limited | Private company limited by shares | Live |
| MASSIVE UNITED LIMITED | Private company limited by shares | Live |
| Vast Universe Trading Limited | Private company limited by shares | Live |
| UNICORNIS LIMITED | Private company limited by shares | Live |
| Unitedstars Technology Limited | Private company limited by shares | Live |
| Universe Tech Engineering Limited | Private company limited by shares | Live |
| MASTER UNIVERSE CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| FIRST UNION (H.K.) LIMITED | Private company limited by shares | Live |
| Union Construction Material Limited | Private company limited by shares | Live |
| Innovation Intelligence Union Group Company Limited | Private company limited by shares | Live |
| United Grand Investment Limited | Private company limited by shares | Live |
| TRIUMPH UNITED LIMITED | Private company limited by shares | Live |
| GALAXY UNITED LIMITED | Private company limited by shares | Live |
| SKY PRO UNITED LIMITED | Private company limited by shares | Live |
| STAR UNION DYNASTY LIMITED | Private company limited by shares | Live |
| SUN RICH UNITED LIMITED | Private company limited by shares | Live |
| PEAK UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNI-TRIUMPH INDUSTRIAL LIMITED | Private company limited by shares | Live |
| FIRST UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| 88 UNIVERSAL LIMITED | Private company limited by shares | Live |
| 88 UNION GLOBAL LIMITED | Private company limited by shares | Live |
| 88 UNION LIMITED | Private company limited by shares | Live |
| CENTURY UNIVERSAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| SUCCESS UNION INCORPORATION LIMITED | Private company limited by shares | Live |
| UNION MAX INC LIMITED | Private company limited by shares | Live |
| GOLDEN UNION CENTURY LIMITED | Private company limited by shares | Live |
| UNIVELA HK LIMITED | Private company limited by shares | Live |
| LIGHTING UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNITED INVESTMENT RECONSTRUCTION (KWU TUNG VILLAGE) LIMITED | Private company limited by shares | Live |
| U-Need Bread Company Limited | Private company limited by shares | Live |
| FINFO UNION LIMITED | Private company limited by shares | Live |
| ETIHAD INTERNATIONAL UNION LIMITED | Private company limited by shares | Live |
| UNITED VICTOR LIMITED | Private company limited by shares | Live |
| UNION CORPORATION LIMITED | Private company limited by shares | Live |
| SKY UNION LIMITED | Private company limited by shares | Live |
| UNIVERSAL SUCCESS MANAGEMENT LIMITED | Private company limited by shares | Live |
| RISE UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| China Architecture Sharing Union Limited | Private company limited by shares | Live |
| UNITED OCEAN LIMITED | Private company limited by shares | Live |
| TOPMAX UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Asia Union Construction Co., Limited | Private company limited by shares | Live |
| Ever Union Properties Development Co Limited | Private company limited by shares | Live |
| NEW WORLD UNION LIMITED | Private company limited by shares | Live |