| UNITECH PRECISION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HANDY UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNITEXX LIMITED | Private company limited by shares | Live |
| LINK UNION MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNION REGENCY LIMITED | Private company limited by shares | Live |
| H.K. WORLD HEALTH UNION INT'L HEALTH CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| ASIA UNITED SHIPPING STEVEDORING LIMITED | Private company limited by shares | Dissolved |
| GOOD UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CENTURY UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| NEW WIN UNION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| FRANCE UNION ST. LUOLAN INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| TC SUCCESS UNION EXPRESS LIMITED | Private company limited by shares | Live |
| WIN UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| WAY UNITED LIMITED | Private company limited by shares | Live |
| GRAND UNIVERSAL TRADING LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION STAR DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNITEDRICH INTERNATIONAL INVESTMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION TOP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION PRODUCTS GROUP LIMITED | Private company limited by shares | Live |
| CHINA UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TECH UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMART UNIVERSE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TINY UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNITED SENTRY LIMITED | Private company limited by shares | Live |
| UNIVERSE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION CROWN HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| MARVEL UNION LIMITED | Private company limited by shares | Live |
| SKY UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TELECOMMUNICATION UNION LIMITED | Private company limited by shares | Dissolved |
| ZHONG DA UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNISON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNET LIMITED | Private company limited by shares | Dissolved |
| UNIQUE EXCEL LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION ENTERPRISES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION CHANNEL (H.K.) INT'L CORP. LIMITED | Private company limited by shares | Dissolved |
| UNIVERSITY HEALTHCARE LIMITED | Private company limited by shares | Live |
| UNI-BRIGHT (CHINA) LIMITED | Private company limited by shares | Live |
| UNINOVO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION STAR INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| WEALTHY UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNIVERSE LIMITED | Private company limited by shares | Live |
| UNION TARGET LIMITED | Private company limited by shares | Dissolved |
| UNITED RESOURCES PTY LIMITED | Private company limited by shares | Live |
| UNION SHINE LIMITED | Private company limited by shares | Dissolved |
| UNION CONCORDIA DEVELOPMENT LIMITED | Private company limited by shares | Live |
| P.T. UNIVERSAL EXPORTS LIMITED | Private company limited by shares | Dissolved |
| UNIQUE ADVERTISING LIMITED | Private company limited by shares | Live |
| MASS UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION CONSTRUCTION LIMITED | Private company limited by shares | Live |
| WORLD UNION ASIA LIMITED | Private company limited by shares | Dissolved |
| ART UNION LIMITED | Private company limited by shares | Live |
| MARKS UNITED LIMITED | Private company limited by shares | Live |
| UNION ICE COMPANY LIMITED | Private company limited by shares | Live |
| JET UNIVERSAL MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNI-SAGE LIMITED | Private company limited by shares | Dissolved |
| UNIFAIR EXHIBITION SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LEADER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CHARTER INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA (H.K.) LIMITED | Private company limited by shares | Live |
| UNIQUE HERO LIMITED | Private company limited by shares | Dissolved |
| CROWN UNIVERSAL LIMITED | Private company limited by shares | Live |
| NEW UNITY LIMITED | Private company limited by shares | Dissolved |
| ORIENT UNION LIMITED | Private company limited by shares | Dissolved |
| EAST UNION LIMITED | Private company limited by shares | Live |
| CAPITAL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION GRAND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNITED TARGET LIMITED | Private company limited by shares | Live |
| FAST EXPRESS UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNIQUE GLORY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TOP UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| POWER UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION BRIDGE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNITED HOWA LIMITED | Private company limited by shares | Dissolved |
| UNION TIME CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| TDS UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| MIN'S UNIVERSAL HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNITED TIME (ASIA) LIMITED | Private company limited by shares | Live |
| STAR UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| JOVIL UNIVERSAL HK LIMITED | Private company limited by shares | Live |
| HONGKONG UNION (ASIA) LIMITED | Private company limited by shares | Live |
| UNION BUSY LIMITED | Private company limited by shares | Live |
| UNITREND LIMITED | Private company limited by shares | Dissolved |
| JB UNIMIGHT LIMITED | Private company limited by shares | Dissolved |
| CHARTER UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNIWELL INVESTMENT (HK) LIMITED | Private company limited by shares | Live |
| UNION FORTUNE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| FIVE UNLIMITED COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MEDICA LIMITED | Private company limited by shares | Dissolved |
| UNION TRADING TRANSPORT LIMITED | Private company limited by shares | Dissolved |
| STAND UNION LIMITED | Private company limited by shares | Dissolved |
| SMART UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| POWER UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SUN HING UNDERWEAR MANUFACTURING LIMITED | Private company limited by shares | Live |
| STAR UNION INVESTMENTS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SAM WOO UNIVERSAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITECH MANAGEMENT LIMITED | Private company limited by shares | Live |
| CHINA UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |