| HEAD UNION LIMITED | Private company limited by shares | Live |
| TOP UNION INTERNATIONAL (HK) LIMITED | Private company limited by shares | Dissolved |
| UNI-PROFIT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNITED SURPLUS LIMITED | Private company limited by shares | Live |
| ORIENTAL UNICONT TRADING (HK) LIMITED | Private company limited by shares | Dissolved |
| UNIQUE METHOD LIMITED | Private company limited by shares | Live |
| UNIQUE OCEAN LIMITED | Private company limited by shares | Live |
| Union Toys Industrial Company Limited | Private company limited by shares | Dissolved |
| ABLE UNION SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| EVER UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION LOGISTICS COMPANY LIMITED | Private company limited by shares | Live |
| EAST UNION CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| MOST UNION LIMITED | Private company limited by shares | Dissolved |
| UNIWAY CORPORATION LIMITED | Private company limited by shares | Live |
| FIRST UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION TRACKER LIMITED | Private company limited by shares | Live |
| UNINT SYSTEM (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| FRIEND UNION LOGISTICS COMPANY LIMITED | Private company limited by shares | Live |
| GOLDEN UNION TRADING LIMITED | Private company limited by shares | Live |
| UNIVERSAL CAPITAL RESOURCES LIMITED | Private company limited by shares | Dissolved |
| ENERGY UNION HONGKONG LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| Toyo Union (Hong Kong) Limited | Private company limited by shares | Dissolved |
| UNIQUE POWER LIMITED | Private company limited by shares | Dissolved |
| UNIQUE LEGEND LIMITED | Private company limited by shares | Dissolved |
| UNION AIM LIMITED | Private company limited by shares | Live |
| SWIFT UNION LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SUPER UNITED LIMITED | Private company limited by shares | Live |
| UNION KIT LIMITED | Private company limited by shares | Live |
| BEST UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNITED LEGEND LIMITED | Private company limited by shares | Dissolved |
| ACE UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNIFAME INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNIFAME INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION CAPITAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIFAME ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE CREATION LIMITED | Private company limited by shares | Dissolved |
| CAPSTONE UNIFIED GROUP LIMITED | Private company limited by shares | Dissolved |
| UNITED ASIA EXCHANGE LIMITED | Private company limited by shares | Live |
| UNION WISE CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNITY HONEST ELECTRONICS LIMITED | Private company limited by shares | Live |
| UNION GLOBAL CO., LIMITED | Private company limited by shares | Live |
| UNIVERSE INT'L INVESTMENT DESIGNING (H.K) CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| GOLD UNITED INVESTMENT LIMITED | Private company limited by shares | Live |
| WIDE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNI-ONE LIMITED | Private company limited by shares | Dissolved |
| XIAMEN UNION CENTURY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION WIDE TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL OVERSEAS COMPANY LIMITED | Private company limited by shares | Live |
| HK ACCOUNTING UNION CONSULTANCY LIMITED | Private company limited by shares | Live |
| GRANDRICH UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION ROUTE INVESTMENTS LIMITED | Private company limited by shares | Live |
| GRAND UNION HONG KONG GROUP LIMITED | Private company limited by shares | Live |
| UNION GAIN ENVIRONMENTAL RECYCLE LIMITED | Private company limited by shares | Live |
| UNION BILLION LIMITED | Private company limited by shares | Dissolved |
| UNION BLOOM LIMITED | Private company limited by shares | Live |
| Union For Trading Company Limited -The- | Private company limited by shares | Live |
| UNITY PLASTICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIA CREDIT UNION LIMITED | Private company limited by shares | Live |
| Nihon Unicom Financial Limited | Private company limited by shares | Dissolved |
| Uniserve Limited | Private company limited by shares | Live |
| KONG KEE UNIFORM LIMITED | Private company limited by shares | Live |
| UNION WIDE ENTERPRISES LIMITED | Private company limited by shares | Live |
| CS UNION (HK) LIMITED | Private company limited by shares | Live |
| UNION INVESTMENT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION KING MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL EXIM LIMITED | Private company limited by shares | Dissolved |
| UNICAP ASIA LIMITED | Private company limited by shares | Live |
| UNIVERSAL OFFSHORE MANAGEMENT LIMITED | Private company limited by shares | Live |
| UNITECH PROPERTIES LIMITED | Private company limited by shares | Live |
| TOP UNITED ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION BRIGHT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNITED HARVEST LIMITED | Private company limited by shares | Live |
| UNIVERSAL 08 LIMITED | Private company limited by shares | Live |
| UNITED 08 LIMITED | Private company limited by shares | Dissolved |
| VANTEREY UNION LIMITED | Private company limited by shares | Dissolved |
| UNION HONG KONG DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNCLE FATBOY LIMITED | Private company limited by shares | Dissolved |
| RESOURCE UNIVERSE LIMITED | Private company limited by shares | Live |
| JADE UNIVERSE CHINA, LIMITED | Private company limited by shares | Live |
| UNITED SUN TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION PINE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SILVER UNIVERSE INTERNATIONAL LIGHTING CO., LIMITED | Private company limited by shares | Live |
| UNI-FORTUNE SHIPPING CO., LIMITED | Private company limited by shares | Live |
| HLS UNITED LIMITED | Private company limited by shares | Live |
| WELLVIEW UNIVERSAL LIMITED | Private company limited by shares | Live |
| MAIN UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION TOP WORLDWIDE LIMITED | Private company limited by shares | Live Commenced dormancy on 11-Sep-2015 |
| SINO UNION 08 LIMITED | Private company limited by shares | Dissolved |
| UNITED TEAM PROPERTIES LIMITED | Private company limited by shares | Live |
| UNITED TOP PROPERTIES LIMITED | Private company limited by shares | Live |
| UNITED WAY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITED EXCEL PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION FURNITURE (CHINA) LIMITED | Private company limited by shares | Live |
| KING UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| PARK UNIVERSE INDUSTRIAL LIMITED | Private company limited by shares | Live |
| FLY UNION LIMITED | Private company limited by shares | Live |
| UNITED BUSINESS LIMITED | Private company limited by shares | Live |
| UNITED SUN LIMITED | Private company limited by shares | Live |