| UNI-TOP INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNI-GERM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNION DEVELOPMENT DESIGN CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNITED DASSIE LIMITED | Private company limited by shares | Dissolved |
| UNIPLAN HONG KONG LIMITED | Private company limited by shares | Live |
| UNI-STRONG INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNI-HAM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITED BOARD COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITAGE LIMITED | Private company limited by shares | Dissolved |
| UNI-HOME COMPANY LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNDERCROFT LIMITED | Private company limited by shares | Dissolved |
| GO UNION LIMITED | Private company limited by shares | Live |
| LONG UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| LONG UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-GREAT COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOAL UNION LIMITED | Private company limited by shares | Dissolved |
| UNITED SEAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVEST LIMITED | Private company limited by shares | Dissolved |
| LINK UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ALUMINIUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FORT TRADING LIMITED | Private company limited by shares | Live |
| UNION SOURCE TRADING LIMITED | Private company limited by shares | Dissolved |
| UNTERBERG INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITED FORD LIMITED | Private company limited by shares | Live |
| UNITRODE ELECTRONICS ASIA LIMITED | Private company limited by shares | Dissolved |
| SOUTH UNION ELECTRONIC & INSTRUMENTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SPORTS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PHYSIOTHERAPY CENTRE COMPANY LIMITED | Private company limited by shares | Dissolved |
| FLOW UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOY UNIVERSAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION/SCICORP/ PJB CONGLOMERATE LIMITED | Private company limited by shares | Dissolved |
| WIN UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| PAN UNION (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| DIMERCO UNDERWRITERS LIMITED | Private company limited by shares | Dissolved |
| OLYMPIC UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LAKE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION BRIDGE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PALACE COMPANY LIMITED | Private company limited by shares | Live |
| UNION SHARP COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH COMPANY LIMITED | Private company limited by shares | Live |
| EASTERN UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNISON OPTIMUM (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNISON SHOES TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNICOURT LIMITED | Private company limited by shares | Dissolved |
| UNION LINE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SUN UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNISON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIOCEAN SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNITBRIGHT LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| EXPERT UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNITED JEWELRY MANUFACTURER LIMITED | Private company limited by shares | Dissolved |
| HOME UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAY UNION SERVICE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CROWN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNISON ADVERTISING LIMITED | Private company limited by shares | Live |
| BIG UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNICLEVER LIMITED | Private company limited by shares | Dissolved |
| RIGHT UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIPHARM PHARMACEUTICAL AND COSMETIC LIMITED | Private company limited by shares | Live |
| UNIVERSAL WINNING FAR EAST LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL RIVER LIMITED | Private company limited by shares | Dissolved |
| UNION JERK COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIRST UNION CREDIT LIMITED | Private company limited by shares | Dissolved |
| JING UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| BIG UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION HOSPITAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL BOND LIMITED | Private company limited by shares | Dissolved |
| UNION MARK TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITED ANIMAL EXCHANGE LIMITED | Private company limited by shares | Live |
| UNION CONCEPT COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| VICTORY UNISTOCK LIMITED | Private company limited by shares | Dissolved |
| UNION TYPE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CEILING FANS COMPANY LIMITED | Private company limited by shares | Dissolved |
| KENT UNIFORMS LIMITED | Private company limited by shares | Live |
| UNION FANS MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PANSONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| AUSWAH UNION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| NEW UNION CANDLE LIMITED | Private company limited by shares | Live |
| KNITWEARS TRANSPORTATION UNION LIMITED | Company limited by guarantee | Dissolved |
| NICE UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| FAMOSO UNICON LIMITED | Private company limited by shares | Live |
| UNIQUE GAIN PRODUCTS LIMITED | Private company limited by shares | Live |
| UNION MALEKIN INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| G. K. UNION DOLLS MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| UNION CRYSTAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ACCESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MARK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| NINETY-7 FILM UNIT LIMITED -THE- | Private company limited by shares | Dissolved |
| MAX UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNDERCLIFF LIMITED | Private company limited by shares | Dissolved |
| UNION TAK TAI INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| CLEVER UNION SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNISPACE ANALOGUE WATCH MANUFACTORY LIMITED | Private company limited by shares | Dissolved |