| UNITEDCIGNA INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| FAST UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| HONGKONG PERMANENT UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Imagine Union Limited | Private company limited by shares | Live |
| UNITED SHIPPING SERVICE CO., LIMITED | Private company limited by shares | Live |
| HONGKONG UNION GROUP INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Live |
| NEW UNISON HOLDINGS LIMITED | Private company limited by shares | Live |
| BROKERS UNION LIMITED | Private company limited by shares | Live |
| UNION SQUARE HOLDINGS LIMITED | Private company limited by shares | Live |
| OCEAN UNION WORLDWIDE LIMITED | Private company limited by shares | Live |
| UNION WORLD INTERNATIONAL CAPITAL LIMITED | Private company limited by shares | Live |
| UNION CENTURY (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION TOP PROPERTIES LIMITED | Private company limited by shares | Live |
| CHINA UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| SKY UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SKY UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BEST UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| UNISON (HONGKONG) GROUP LIMITED | Private company limited by shares | Live |
| HONGKONG UNION CHEMICAL LIMITED | Private company limited by shares | Dissolved |
| UNION EAST HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION GRAND PROFIT LIMITED | Private company limited by shares | Dissolved |
| UNITED GRAND RICH LIMITED | Private company limited by shares | Dissolved |
| UNION CENTURY CONSTRUCTION HOLDINGS INT'L LIMITED | Private company limited by shares | Live |
| BEST UNIONS LIMITED | Company limited by guarantee | Live |
| RIGHT UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL BIO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION ALPHA CAAP CERTIFIED PUBLIC ACCOUNTANTS LIMITED | Private company limited by shares | Live |
| UNITED SMART ENTERPRISE LIMITED | Private company limited by shares | Live |
| SAN UNION INTERNATIONAL (HONGKONG) HOLDINGS LIMITED | Private company limited by shares | Live |
| UNITED GROUP INVESTMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Apr-2010 |
| UNION BEST INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BEST UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| FOREVER UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TOP INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNION WORLD GROUP HOLDINGS LIMITED | Private company limited by shares | Live |
| INTERNATIONAL UNION GROUP CO., LIMITED | Private company limited by shares | Live |
| ASEAN HUASHANG UNION (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION GROUP LIMITED | Private company limited by shares | Live |
| HNR Universal Company Limited | Private company limited by shares | Live |
| UNIVERSAL PLAYGROUND LIMITED | Private company limited by shares | Live |
| UNITED R & M HOLDING LIMITED | Private company limited by shares | Live |
| UNIVERSAL TOP PRODUCTS LIMITED | Private company limited by shares | Live |
| UNITED BEAUTY CO., LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ASIA PACIFIC INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| WORLD PEOPLE UNION LIMITED | Private company limited by shares | Live |
| LEAD UNION LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNITED LIMITED | Private company limited by shares | Dissolved |
| UNION TOUR BUS LIMITED | Private company limited by shares | Dissolved |
| UNITED OCEAN TRADING LIMITED | Private company limited by shares | Live |
| GOLD UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION GLORY INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNITED SMART TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION RICH DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNITY DIGITAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UBM UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION VICTORY PROPERTIES LIMITED | Private company limited by shares | Live |
| Unitedguard Limited | Private company limited by shares | Dissolved |
| OCEAN UNION TRADING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNI-WINNER LIMITED | Private company limited by shares | Dissolved |
| UNION RUBBER CO., LIMITED | Private company limited by shares | Live |
| UNITED NATIONS ASEAN EMERGENCY RESCUE & MATERIAL PROCUREMENT TRADING PLATFORM LIMITED | Private company limited by shares | Live |
| HONOUR UNION LIMITED | Private company limited by shares | Live |
| UNION GRACE LIMITED | Private company limited by shares | Dissolved |
| COMPASS UNITED LIMITED | Private company limited by shares | Live |
| UNION BEST INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIWAY LIMITED | Private company limited by shares | Live |
| UNION ONE RESOURCES CO., LIMITED | Private company limited by shares | Live |
| UNION WORLD CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| EVER UNION CORPORATION LIMITED | Private company limited by shares | Live |
| United Asia Nursing Care Limited | Private company limited by shares | Dissolved |
| UNIVERSAL WORLDEVENTS ASIA LIMITED | Private company limited by shares | Live |
| UNIFLEX COMPANY LIMITED | Private company limited by shares | Live |
| UNITRANS FREIGHT SOLUTION LIMITED | Private company limited by shares | Live |
| M & A UNION LOGISTICS (H.K.) CO., LIMITED | Private company limited by shares | Live |
| SUPER TRI UNION ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| UNIC ENTERPRISES PTY LIMITED | Private company limited by shares | Dissolved |
| UNION WELL (H.K.) LIMITED | Private company limited by shares | Live |
| UNI-SUCCESS INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNION POWERIC GROUP LIMITED | Private company limited by shares | Live |
| CENTRAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Cranford Universal Limited | Private company limited by shares | Dissolved |
| HONGKONG WORLD UNION INTERNATIONAL TRADE LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE INTERNATIONAL MINERAL RESOURCES LIMITED | Private company limited by shares | Dissolved |
| UNION FINE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION TACT LIMITED | Private company limited by shares | Live |
| UNIVERSE ASSOCIATION (HK MAIN OFFICE) LIMITED | Company limited by guarantee | Live |
| UNIK-STYLE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ACE UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNITED OCEAN TRANSPORTATION LIMITED | Private company limited by shares | Live |
| INTERNATIONAL UNION EXPRESS LIMITED | Private company limited by shares | Live |
| China Innovation Enterprise Unions Limited | Private company limited by shares | Dissolved |
| GAIN UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| COHERENT UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNITED MASTER INVESTMENT LIMITED | Private company limited by shares | Live |
| UNITED RICH INVESTMENT LIMITED | Private company limited by shares | Live |
| MILLION UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL (CAPITAL MANAGEMENT) LIMITED | Private company limited by shares | Live |
| KINGWAY UNION ELECTRONIC GROUP CO., LIMITED | Private company limited by shares | Dissolved |