| UNION FAT KNITTERS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL EMPEROR LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL FULL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL FUTURE LIMITED | Private company limited by shares | Dissolved |
| UNION FAT INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED SENSE TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| UNIPLAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FOK HING UNIVERSAL TRAVEL LIMITED | Private company limited by shares | Dissolved |
| DESIGN UNION INTERIOR CONTRACTING LIMITED | Private company limited by shares | Live |
| UNITED LUCK LIMITED | Private company limited by shares | Dissolved |
| KENT UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION CONTINENTAL LIMITED | Private company limited by shares | Dissolved |
| KENT UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION REALITY LIMITED | Private company limited by shares | Dissolved |
| SMART UNIQUE LIMITED | Private company limited by shares | Live |
| UNI-MIND LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL LINK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CENTURY SHIPPING LIMITED | Private company limited by shares | Dissolved |
| GENTLE UNION LIMITED | Private company limited by shares | Dissolved |
| EAST UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION INDEX LIMITED | Private company limited by shares | Dissolved |
| CHOI LEE FAT KUNG-FU INTERNATIONAL UNION LIMITED | Company limited by guarantee | Live |
| EAST UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| LINK UNION LIMITED | Private company limited by shares | Dissolved |
| UNION SHELL PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| RAYS UNIVERSE LIMITED | Private company limited by shares | Live |
| EAST UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNITED CHAMPIONS LIMITED | Private company limited by shares | Dissolved |
| UNION COMPUTER BAR CODE PRINTING COMPANY LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION CAMP HONG KONG LIMITED | Private company limited by shares | Dissolved |
| UNION GARMENT MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WELL UNION INDUSTRIAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNITED PRODUCTS ENTERPRISE LIMITED | Private company limited by shares | Live |
| UNIQUE POWER LIMITED | Private company limited by shares | Dissolved |
| NEW UNION PAPER BOXES & PRINTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ADMAS UNIVERSAL PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| UPWARD (UNION) TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED O.A. LIMITED | Private company limited by shares | Dissolved |
| UNION DECORATION ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| UNION WAY POWER SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| UNIMARK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OKAY UNITED LIMITED | Private company limited by shares | Dissolved |
| UNION TECH COMPUTER COMPANY LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| ETERNAL UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION FORD INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITED ART LIMITED | Private company limited by shares | Live |
| WISE UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL UNION OF PROFESSIONAL DEVELOPMENT INSTITUTIONS LIMITED | Private company limited by shares | Live Ceased dormancy on 09-Apr-2009 |
| UNION FORTUNE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNITED FORCE LIMITED | Private company limited by shares | Dissolved |
| KEY UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL THEME LIMITED | Private company limited by shares | Dissolved |
| UNIPOWER PACIFIC LIMITED | Private company limited by shares | Live |
| STANDARD UNION REALTY COMPANY LIMITED | Private company limited by shares | Dissolved |
| MULTI UNION INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| REGENT UNION LIMITED | Private company limited by shares | Dissolved |
| UNION ALPHA TRADING LIMITED | Private company limited by shares | Dissolved |
| SPECIAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNI-WAX HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION PHARMACEUTICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNICORN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNIA LIMITED | Private company limited by shares | Dissolved |
| UNION FOCUS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIKEN LIMITED | Private company limited by shares | Live |
| UNION WIN HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION COSMOS PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNION & UNION LIMITED | Private company limited by shares | Dissolved |
| UNIAUST LIMITED | Private company limited by shares | Dissolved |
| UNION FAR EAST LIMITED | Private company limited by shares | Dissolved |
| UNION PERFECT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TOP UNION LIMITED | Private company limited by shares | Live |
| GALAXY UNION ENTERPRISES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION MATCH TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| POLY UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| EAGLE UNION LIMITED | Private company limited by shares | Dissolved |
| DRAGON UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION IDEA LIMITED | Private company limited by shares | Dissolved |
| GLORY UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL STANDARD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CROWN UNION FOOD & BEVERAGE MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED MODERN INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIVERSAL FORTUNE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITY WIN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIWORTH LIMITED | Private company limited by shares | Live |
| CHINA UNITY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION QUEEN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| MARK UNIVERSAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITEN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CHINA UNITY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HERO ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| CHAMPION UNITED LIMITED | Private company limited by shares | Dissolved |
| UNION SINO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| PORT UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HILL UNION (HOLDINGS) LIMITED | Private company limited by shares | Dissolved |
| NEW UNISON LIMITED | Private company limited by shares | Live |
| UNITED WAY LIMITED | Private company limited by shares | Dissolved |