| UNION ENTERPRISE HOLDINGS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNITED EQUITY LIMITED | Private company limited by shares | Live |
| UNION FOOD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| RIGHT UNION LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| NATION UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNITED PRODUCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL AWARD (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSITY BAPTIST CHURCH | Company limited by guarantee | Live |
| UNION WISE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIKA VIE-PAN INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-SHIP AGENCY CO., LIMITED | Private company limited by shares | Dissolved |
| WINNING UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION TRUMP LIMITED | Private company limited by shares | Dissolved |
| GRACE UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNION STAR REALTY LIMITED | Private company limited by shares | Dissolved |
| SOUTH UNION HONG KONG LIMITED | Private company limited by shares | Live |
| UNION ASIA TRUCKING LIMITED | Private company limited by shares | Dissolved |
| UNION REGION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| UNITED BOND LIMITED | Private company limited by shares | Dissolved |
| UNION ASIAN LIMITED | Private company limited by shares | Live |
| UNION FAIR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| MEGA UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL KIND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL TOP ASIA LIMITED | Private company limited by shares | Dissolved |
| UNITED WINNING LIMITED | Private company limited by shares | Dissolved |
| UNITED SCORE DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION SHOES COMPANY LIMITED | Private company limited by shares | Live |
| UNION MICROSYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION FILM & ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL RELIANCE LIMITED | Private company limited by shares | Live |
| UNIPEC ASIA COMPANY LIMITED | Private company limited by shares | Live |
| UNION COMMERCE LIMITED | Private company limited by shares | Dissolved |
| SUPREME UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION WELL TRADING LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNITED PACIFIC TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION SINO DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CROSS UNIVERSE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITED ASIAN LIMITED | Private company limited by shares | Dissolved |
| UNION SYSTEM INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| SHEEN UNIVERSAL INVESTMENT (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNITED TOP ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION CONCORD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNITY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WEAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNITY LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| MARINE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CONCORD LIMITED | Private company limited by shares | Live |
| UNITED PROFESSION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNITAL LIMITED | Private company limited by shares | Dissolved |
| UNISUN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LOYAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UPC UNION PRINTING COMPANY LIMITED | Private company limited by shares | Live |
| UNITED CONCORD TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION TECH INVESTMENTS LIMITED | Private company limited by shares | Live Commenced dormancy on 23-Apr-1999 |
| UNION FUND LIMITED | Private company limited by shares | Dissolved |
| RICH UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNICON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SKY UNITED (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE LINK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNI-TARGET INVESTMENT LIMITED | Private company limited by shares | Live |
| CENTRO DIGITAL UNIVERSE (HK) LIMITED | Private company limited by shares | Dissolved |
| RICH UNIVERSE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WEST UNION INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| UNITED AIM INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO UNION INSURANCE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION TEXTILE MILL LIMITED | Private company limited by shares | Live |
| ORIENTAL UNION LOGISTICS SERVICES LIMITED | Private company limited by shares | Live |
| United World Chinese Zhong Qiao (Holdings) Co. Limited | Private company limited by shares | Live |
| ORIENTAL UNION MANAGEMENT SERVICES LIMITED | Private company limited by shares | Dissolved |
| FINE UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIFORTUNE TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION ORIENT LIMITED | Private company limited by shares | Dissolved |
| UNICOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNITED LIMITED | Private company limited by shares | Dissolved |
| MODERN UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| EXCEL UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE LINK INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION ASSET INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION SKY FOOD LIMITED | Private company limited by shares | Live |
| WORLDTOP UNIVERSAL LIMITED | Private company limited by shares | Live |
| WORLD UNION QUENTINI LIMITED | Private company limited by shares | Live |
| UNION VICTORY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| ETERNAL UNITY PROPERTY AGENCY LIMITED | Private company limited by shares | Live |
| SOLAR UNION (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| ETERNAL UNITY PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION PACIFIC TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FOCUS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION INSURANCE BROKERS LIMITED | Private company limited by shares | Live |
| UNION CONCORD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION SKY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION NOBLE LIMITED | Private company limited by shares | Live |
| SUNNY UNIVERSAL LIMITED | Private company limited by shares | Live |