| UNION LINK TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIPROGRESS INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIVERSAL BUSINESS CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| TRADE UNION LIMITED | Private company limited by shares | Live |
| CHINA INTERNATIONAL ZHOU YI RESEARCH UNITED ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| KAF UNITED COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-WELL INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SHINNING UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION CENTRAL LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNION SHIPPING CO., LIMITED | Private company limited by shares | Live |
| WISE UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| NALEPHER (NATIONS) UNDERWEAR CO., LIMITED | Private company limited by shares | Dissolved |
| WIDE UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SEA UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNLEASH LIMITED | Private company limited by shares | Dissolved |
| AKP UNITED CHINA CHANNEL CO. LIMITED | Private company limited by shares | Live |
| SHEEN UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNITED SMART TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNI-DESIGN HONG KONG LIMITED | Private company limited by shares | Live |
| STATUE OF WORLD PEACE ROSELLINI UNION LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| WORLD UNION INTERNATIONAL INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL (ASIA) LIMITED | Private company limited by shares | Live |
| JOY UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION STAR ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| S.T.C. UNIVERSAL HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNION ARTS ENGINEERING LIMITED | Private company limited by shares | Live |
| UNIVERSAL GAIN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION MASTER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Union Well Holdings Limited | Private company limited by shares | Live |
| UNI-SOURCE LIMITED | Private company limited by shares | Live |
| UNION VICTORY INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL UNION CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| UNIREGENT CHINA LIMITED | Private company limited by shares | Live |
| UNISON SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNIPLEX LIMITED | Private company limited by shares | Live |
| BALDWIN UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GLOBAL TOURISM UNION LIMITED | Private company limited by shares | Dissolved |
| MILLENNIUM UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION RESOURCES (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CARNIVAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO UNION INSURANCE SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNISON INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION LIHUA (HONG KONG) PHARMACETICAL LIMITED | Private company limited by shares | Dissolved |
| UNI-SINO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIQUE TOP (CHINA) LIMITED | Private company limited by shares | Live |
| GOLD UNION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL MANAGEMENT CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE LIMITED | Private company limited by shares | Dissolved |
| PEKING UNIVERSITY SHUE YAN COLLEGE ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| UNION FASHION CO., LIMITED | Private company limited by shares | Live |
| UNION STEEL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| EAGLE UNION TRANSPORTATION CO., LIMITED | Private company limited by shares | Dissolved |
| W.T.G UNION (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| A & T UNLIMIT LIMITED | Private company limited by shares | Live |
| YULILUNG (HK) UNDERWEARS LIMITED | Private company limited by shares | Dissolved |
| UNITOM (H.K.) INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO CREATIVE UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNITED MASS LIMITED | Private company limited by shares | Dissolved |
| SUN UNION AUDIO LIMITED | Private company limited by shares | Live Commenced dormancy on 30-Nov-2012 |
| UNITED BASE LIMITED | Private company limited by shares | Live |
| UNITED PARK LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL HEALTHGUARD TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION JOIN LIMITED | Private company limited by shares | Dissolved |
| UNION STAR HOLDINGS (HK) LIMITED | Private company limited by shares | Live |
| WORLD PEACE UNIVERSITIES NETWORK LIMITED | Company limited by guarantee | Live |
| UNITED GAIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNITED NATIONS NGO AUTHORITY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ACE LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNDERWATER EXPLORATION PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE OVERSEAS TRADE LIMITED | Private company limited by shares | Dissolved |
| UNIWELL STATIONERIES CO., LIMITED | Private company limited by shares | Live |
| Mega Union Trading Limited | Private company limited by shares | Dissolved |
| UNIQUE CORP LIMITED | Private company limited by shares | Live |
| UNIQUE MIX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNI-CHANCE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIFUTURE ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ROYAL UNITY LIMITED | Private company limited by shares | Dissolved |
| EXCEL UNITY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL WIN LIMITED | Private company limited by shares | Dissolved |
| UNION HARVEST DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE POWER LIMITED | Private company limited by shares | Dissolved |
| LONG UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ALL UNION LIMITED | Private company limited by shares | Dissolved |
| TRUE UNION LIMITED | Private company limited by shares | Dissolved |
| TOP UNION INTERNATIONAL INVESTMENT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BEST UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| ITALY UNION KANGAROO INT'L DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GRAND UNION (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CC UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNION FIELD INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNION INTERNATIONAL (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| FINE UNION FPC LIMITED | Private company limited by shares | Dissolved |
| FRIEND UNION SHIPPING LIMITED | Private company limited by shares | Live |
| UNIN RESOURCES LIMITED | Private company limited by shares | Dissolved |
| GLOBAL OVERSEAS CHINESE & CHINESE BUSINESS UNITED GROUP LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |