| UNI-CHEST COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CHEST LIMITED | Private company limited by shares | Dissolved |
| SKY UNIVERSE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GLORY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITY NATIONAL LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSAL LIMITED | Private company limited by shares | Live |
| CROWN UNIVERSAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ARROW LIMITED | Private company limited by shares | Dissolved |
| EAGLE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| EAGLE UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| EAGLE UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TOP UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SUPREME UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNISIN LIMITED | Private company limited by shares | Dissolved |
| UNITED TECHNOLOGY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO UNION (ASIA) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG FEDERATION OF TAIWAN UNIVERSITIES ALUMNI ASSOCIATION LIMITED -THE- | Company limited by guarantee | Live |
| TIME UNION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION MOTORS LIMITED | Private company limited by shares | Dissolved |
| SCORE UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL FAR EAST LIMITED | Private company limited by shares | Live |
| NEW GLOBAL UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| CENTURY UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNIGON LIMITED | Private company limited by shares | Dissolved |
| UNION CHEMICAL IND. COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL LANE LIMITED | Private company limited by shares | Live |
| UNIVERSAL GREEN LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SENSE LIMITED | Private company limited by shares | Dissolved |
| UNISINO LIMITED | Private company limited by shares | Dissolved |
| FOUNDLY UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL STAR LIMITED | Private company limited by shares | Dissolved |
| UNIGRADE LIMITED | Private company limited by shares | Dissolved |
| CONWAY UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNISON PLAN LIMITED | Private company limited by shares | Dissolved |
| UNISON ORIENT LIMITED | Private company limited by shares | Live |
| HONG KONG UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION TOP (HK) COMPANY LIMITED | Private company limited by shares | Live |
| UNISON EAGLE LIMITED | Private company limited by shares | Dissolved |
| UNISON POINT LIMITED | Private company limited by shares | Dissolved |
| UNISON FIELD LIMITED | Private company limited by shares | Dissolved |
| UNISON STATE LIMITED | Private company limited by shares | Dissolved |
| WAH YAN UNITED INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-CHINA LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CHINESE UNITED ESTABLISHMENTS LIMITED | Private company limited by shares | Live |
| WIDE UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION GRAND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION MASS LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION WIDE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION HILL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNICORN LIMITED | Private company limited by shares | Dissolved |
| UNION FINE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNITACH LIMITED | Private company limited by shares | Live |
| UNIWAY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNICON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIWORLD LIMITED | Private company limited by shares | Live |
| UNISKY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNICON INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIRAY INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNISON ELECTRICAL COMPANY LIMITED | Private company limited by shares | Live |
| UNION HEATER PRINTING & DYEING (H.K.) CO. LIMITED | Private company limited by shares | Live |
| UNIVERSAL BINDING FACTORY LIMITED | Private company limited by shares | Live |
| UNILITE (HK) LIMITED | Private company limited by shares | Dissolved |
| UNILITE ASIA LIMITED | Private company limited by shares | Dissolved |
| UNILITE PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNITEC ASIA LIMITED | Private company limited by shares | Dissolved |
| UNIPLAN CONSULTANT LIMITED | Private company limited by shares | Live |
| HK-CHINA (UNION) DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| A. UNITE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNI-PARK ENTERPRISES LIMITED | Private company limited by shares | Live |
| LEADER UNIVERSAL (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| WELL UNION GARMENT LIMITED | Private company limited by shares | Dissolved |
| B.S. UNION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| A J UNIVERSAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| STAR UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-MARK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| BILLIONS UNIVERSAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| FORESEEING UNION CORP. LIMITED | Private company limited by shares | Dissolved |
| UNION PRODUCTION LIMITED | Private company limited by shares | Dissolved |
| EVER UNITY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNICOME INVESTMENT LIMITED | Private company limited by shares | Live |
| FIRST UNIVERSAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNITECH PRECISION LIMITED | Private company limited by shares | Live |
| WEALTH UNION LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| SMARK UNION FAR EAST LIMITED | Private company limited by shares | Dissolved |
| HOME UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| PURSE UNITED LIMITED | Private company limited by shares | Dissolved |
| TAIFU UNION INVESTMENT CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNITED WEALTH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION TARGET DEVELOPMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNITED FORCE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TOP UNITED LIMITED | Private company limited by shares | Live |
| UNION POWER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |