| UNION SENSE LIMITED | Private company limited by shares | Dissolved |
| UNION CHANCE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION CROWN INTERNATIONAL SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNION CONCORD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION KING INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION SHEEN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TOP UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION DRAGON INVESTMENT (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION GRAND DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SHINE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION KING LIMITED | Private company limited by shares | Live |
| UNITED SUCCESS INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIVERSAL MARK LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| DATA UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BEST UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNISKY LIMITED | Private company limited by shares | Dissolved |
| UNION FRIEND LIMITED | Private company limited by shares | Dissolved |
| UNION MAX LIMITED | Private company limited by shares | Dissolved |
| UNION SILVER LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBE LIMITED | Private company limited by shares | Dissolved |
| AROMA UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION APEX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNISON PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNI-APEX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNI-APEX LIMITED | Private company limited by shares | Dissolved |
| IDEAL UNION LIMITED | Private company limited by shares | Dissolved |
| DIAMOND UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TOP UNION ADVERTISING DESIGN COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOP UNION ASIA LIMITED | Private company limited by shares | Dissolved |
| SOUTH UNION CAPITAL (HK) LIMITED | Private company limited by shares | Live |
| UNIVERSAL PLASTIC & METAL MANUFACTURING LIMITED | Private company limited by shares | Live |
| UNITED FABRICS LIMITED | Private company limited by shares | Dissolved |
| TRENDER UNIVERSAL (H. K.) GROUP LIMITED | Private company limited by shares | Dissolved |
| PEARL UNION LIMITED | Private company limited by shares | Dissolved |
| BLOOMING UNION CO., LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| DIAMOND UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA UNISON MEDICINE MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH INSURANCE CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNIVERSE INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| WISE UNION INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| STANDARD UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| SUPER UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| SILVER STAR UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| POLYWELL UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| STANDARD UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| SUN UNIVERSAL LIMITED -THE- | Private company limited by shares | Dissolved |
| STONE UNION LIMITED | Private company limited by shares | Live |
| BEST UNITY LIMITED | Private company limited by shares | Live |
| KONGSTAR UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION KEEN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION CENTRE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION CHARTER INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION RIVER LIMITED | Private company limited by shares | Dissolved |
| UNION CHARTER LIMITED | Private company limited by shares | Live |
| UNION MILLION LIMITED | Private company limited by shares | Dissolved |
| UNION TONE LIMITED | Private company limited by shares | Dissolved |
| UNION CAPITAL LIMITED | Private company limited by shares | Dissolved |
| UNION SOUTH LIMITED | Private company limited by shares | Dissolved |
| CHINA UNITED (EUROPUS) INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIONCOMM INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TAIWANESE UNION ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| CENTURY UNIVERSAL INVESTMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL TRADE INVESTMENT LIMITED | Private company limited by shares | Live |
| FUKUDA UNIVERSITY (ESTABLISHING COUNCIL) LIMITED | Private company limited by shares | Live |
| UNITED LINK HOLDING LIMITED | Private company limited by shares | Dissolved |
| VICTORY UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GLORY UNIVERSAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| VICTORY UNITED INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIKAM GAS LIGHTER MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED FIRST INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TOP HOLDINGS LIMITED | Private company limited by shares | Live |
| UNIVERSE BUSINESS CENTRE (HK) LIMITED | Private company limited by shares | Live |
| ALL UNITED DEVELOPMENTS LIMITED | Private company limited by shares | Live |
| KING UNION PROPERTIES INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION BASE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FUN LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSE (H.K.) INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION SMART CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| CHARLES STURT UNIVERSITY ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| UNIPLAN (ASIA) HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION DESIGN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CONNECTION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL HARMONY LIMITED | Private company limited by shares | Live |
| UNIVERSAL TIE LIMITED | Private company limited by shares | Live |
| UNIVERSAL CONCORD LIMITED | Private company limited by shares | Dissolved |
| UNITED CHAMPION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION SHIPPING LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| UNION WELL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| A & D UNION LIMITED | Private company limited by shares | Dissolved |
| UNITED GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| RICH UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION TRANSPORTATION LIMITED | Private company limited by shares | Live |