| 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 |
| UNITED BEVERAGES COMPANY, LIMITED | Private company limited by shares | Live |
| Max Universe 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 |
| 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 |
| Universal Ocean Fishery Federation Group Limited | Private company limited by shares | Live |
| CHINA DIGITAL CURRENCY UNION RESERVES LIMITED | Private company limited by shares | Live |
| Universe Beaute Group Limited | Private company limited by shares | Live |
| VICTORY UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSE UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL BRIGHT BUSINESS LIMITED | Private company limited by shares | Live |
| EU UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION TIMES HONG KONG LIMITED | Private company limited by shares | Live |
| UNION STRONG (HONG KONG) LIMITED | Private company limited by shares | Live |
| Pacifico Union Co., Limited | Private company limited by shares | Live |
| GROUP UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION LINK INC LIMITED | Private company limited by shares | Live |
| UNION EAST ASIA LIMITED | Private company limited by shares | Live |
| UNION 88 LIMITED | Private company limited by shares | Live |
| Unipro Management Limited | Private company limited by shares | Live |
| ACHIEVE UNION DEVELOPMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Dec-2017 |
| UNION WISE ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNIXPACE Company Limited | Private company limited by shares | Live |
| UNIQUE MEGA LIMITED | Private company limited by shares | Live |
| Hongkong One Union Trade Co., Limited | Private company limited by shares | Live |
| UNION HONG KONG HOLDINGS LIMITED | Private company limited by shares | Live |
| STAR UNITED SPORTS LIMITED | Private company limited by shares | Live |
| Win-win Union Cultural&Creative Co., Limited | Private company limited by shares | Live |
| United Software Limited | Private company limited by shares | Live |
| UNION STAR 88 LIMITED | Private company limited by shares | Live |
| UNION TREND 88 LIMITED | Private company limited by shares | Live |
| UNION WAY 88 LIMITED | Private company limited by shares | Live |
| SKY UNION MEGA TRADE LIMITED | Private company limited by shares | Live |
| UNION GAIN MEGA TRADE LIMITED | Private company limited by shares | Live |
| UNION GOODRICH LIMITED | Private company limited by shares | Live |
| UNION SMART INC LIMITED | Private company limited by shares | Live |
| UNION SURPLUS LIMITED | Private company limited by shares | Live |
| UNION GOLDS LIMITED | Private company limited by shares | Live |
| UNION SKYRICH LIMITED | Private company limited by shares | Live |
| UNION SMART RICH LIMITED | Private company limited by shares | Live |
| UNION TREASURE INC LIMITED | Private company limited by shares | Live |
| WINERIES OF CHILE UNION COMMITTEE LIMITED | Private company limited by shares | Live |
| AMAY UNITED ASIA LIMITED | Private company limited by shares | Live |
| MEIHE UNITED ASIA LIMITED | Private company limited by shares | Live |
| UNION BEST INTERNATIONAL LIMITED | Private company limited by shares | Live |
| United Lifestyle Company Limited | Private company limited by shares | Live |
| Universal First Healthcare Limited | Private company limited by shares | Live |
| UNION WELL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CREATION UNIVERSE ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNIVERSAL HK INVESTMENT LIMITED | Private company limited by shares | Live |