| NEW UNION WAREHOUSE LIMITED | Private company limited by shares | Dissolved |
| SUN UNION (CHINA) PROPERTY LIMITED | Private company limited by shares | Dissolved |
| WONDERFUL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL BUYING SERVICE, LIMITED | Private company limited by shares | Dissolved |
| UNIFAIR ARTISTIC GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| LONG RIVER UNION INDUSTRIAL CO. LIMITED | Private company limited by shares | Live |
| TEMPLE OF UNIVERSAL BRIGHTNESS (HK ASSOCIATION) LIMITED | Company limited by guarantee | Live |
| PACIFIC UNIT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION MERCANTILE CO. (H.K.) LIMITED | Private company limited by shares | Dissolved |
| MASS UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| NEW UNION LIMITED | Private company limited by shares | Dissolved |
| NEW UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| NEW UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| FAIR UNIT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIFIED ASSOCIATION OF KOWLOON WEST LIMITED -THE- | Company limited by guarantee | Live |
| UNIWEALTH PACK-TECH LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION LIMITED | Private company limited by shares | Live |
| UNIPROGRESS (H.K.) LIMITED -THE- | Private company limited by shares | Dissolved |
| UNISKY TRADING LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNION EXPRESS LIMITED | Private company limited by shares | Live |
| UNION CHEERY LIMITED | Private company limited by shares | Dissolved |
| UNION MORE LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNITED SOFT DRINKS LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| DRAGON UNION COMPANY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| TSANG'S UNDERWRITERS LIMITED | Private company limited by shares | Live |
| NEW UNITY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| TEEM UNION LIMITED | Private company limited by shares | Dissolved |
| SUN UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL NAVIGATION LIMITED | Private company limited by shares | Live |
| UNITAK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNITED PROVIDENT INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| LONG UNITED LIMITED | Private company limited by shares | Dissolved |
| UNION GLORY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNIQUE INVESTMENT LIMITED | Private company limited by shares | Live |
| POLE UNION LIMITED | Private company limited by shares | Live |
| CHINA UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| CHINA UNION LIMITED | Private company limited by shares | Dissolved |
| SUN UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNI-WAY SOURCING LIMITED | Private company limited by shares | Dissolved |
| UNITIDE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL GROUP LIMITED | Private company limited by shares | Live |
| GAIN UNION LIMITED | Private company limited by shares | Dissolved |
| HARBOUR UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION LIMITED | Private company limited by shares | Dissolved |
| HARBOUR UNION LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION LIMITED | Private company limited by shares | Dissolved |
| ZEBEDEE UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION GLAD INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HARBOUR UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| HARBOUR UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE PROPERTY CONSULTANTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED TIME LIMITED | Private company limited by shares | Live |
| GOLD UNITED INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SHARP UNION LIMITED | Private company limited by shares | Dissolved |
| GRAND UNITED LIMITED | Private company limited by shares | Dissolved |
| GOLD UNIVERSAL SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION FREE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| BEST UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION WORLD DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD LIMITED | Private company limited by shares | Dissolved |
| UNION FREE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HEIGHT UNION LIMITED | Private company limited by shares | Dissolved |
| GAIN UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION RICH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION HILL LIMITED | Private company limited by shares | Dissolved |
| FLOWER UNION LIMITED | Private company limited by shares | Live |
| UNION ONE LIMITED | Private company limited by shares | Live |
| UNION PROSPER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNIONWELL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TOP DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CREATE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WIN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION PLAN LIMITED | Private company limited by shares | Dissolved |
| UNION RICH DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SHINE LIMITED | Private company limited by shares | Dissolved |
| UNION COSMOS LIMITED | Private company limited by shares | Live |
| UNION WELL LIMITED | Private company limited by shares | Live |
| UNION MANOR LIMITED | Private company limited by shares | Live |
| UNION HONEST LIMITED | Private company limited by shares | Dissolved |
| UNION CHEER LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNION COSMOS DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION BEST INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GLORY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION LUCK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HEALTH LIMITED | Private company limited by shares | Dissolved |
| UNION FORD LIMITED | Private company limited by shares | Dissolved |
| UNION JET LIMITED | Private company limited by shares | Live |
| UNIONLINK LIMITED | Private company limited by shares | Dissolved |
| UNION NEW LIMITED | Private company limited by shares | Dissolved |
| UNION CONCEPT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GAIN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION EAGLE LIMITED | Private company limited by shares | Dissolved |