| UNION FAITH TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS LIMITED | Private company limited by shares | Dissolved |
| UNION BEST LIMITED | Private company limited by shares | Dissolved |
| UNION WELL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION TIME DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GOOD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION BEST CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION WIN INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION JADE LIMITED | Private company limited by shares | Dissolved |
| UNION ART INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ART LIMITED | Private company limited by shares | Dissolved |
| UNION SMART LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HARBOUR UNION SHIPPING & ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED LINGUS COMPANY LIMITED | Private company limited by shares | Live |
| UNION BEST TRADING LIMITED | Private company limited by shares | Live |
| UNION FAITH TRADING LIMITED | Private company limited by shares | Live |
| UNION TOP GARMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTH PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION WAY GARMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA GARMENTS LIMITED | Private company limited by shares | Live Commenced dormancy on 04-Jul-1996 |
| UNION RICH (IMPORT & EXPORT) LIMITED | Private company limited by shares | Dissolved |
| UNION TIME PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION RISE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION SUCCESS METAL LIMITED | Private company limited by shares | Live |
| UNICON CONVERSION TECHNOLOGIES PTY LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| FAR UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| FAR UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION OPTICAL MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION GRAND LIMITED | Private company limited by shares | Dissolved |
| FAR UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNI-TECH.COM TECHNOLOGY LIMITED | Private company limited by shares | Live Commenced dormancy on 14-Jul-2014 |
| SOUTH UNITY LIMITED | Private company limited by shares | Dissolved |
| GOLD UNITY LIMITED | Private company limited by shares | Dissolved |
| FIRST UNITY LIMITED | Private company limited by shares | Dissolved |
| RADIO UNISON COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-FOREX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CROWN UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| KIND UNION (CHINA) DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNISAN LIMITED | Private company limited by shares | Dissolved |
| SOUTH UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION PAPER PRODUCTS MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| WISE UNITED LIMITED | Private company limited by shares | Dissolved |
| FRIENDLY UNITED LIMITED | Private company limited by shares | Live |
| UNI-LEADER TEXTILE CO., LIMITED | Private company limited by shares | Live |
| SAFE UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SAFE UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION MERRY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MARK UNICORN LIMITED | Private company limited by shares | Dissolved |
| UNITECH CONCRETE REPAIRS CO., LIMITED | Private company limited by shares | Dissolved |
| UNALIS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HONGKONG NANYOU TRAVEL UNITED SERVICE CO., LIMITED | Private company limited by shares | Dissolved |
| FRIENDS UNION TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| UNIONRAY PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNION MOTORS LIMITED | Private company limited by shares | Dissolved |
| ELEGANT UNION WATCH & JEWELLERY LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION INSURANCE CONSULTANT LIMITED | Private company limited by shares | Live |
| UNION BEST INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIPOWER INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNITED SPORTS GLOVE FACTORY LIMITED | Private company limited by shares | Live |
| UNISON TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| WELL UNITY LIMITED | Private company limited by shares | Live |
| UNION POWER TRADING (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CHEER ADVERTISING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CENTER UNIVERSE (NOMINEE) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL RING TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION EAGLE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION GRADE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SKY UNIVERSE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNISON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BRIGHT UNIVERSE LIMITED | Private company limited by shares | Live |
| UNITY RESOURCES LIMITED | Private company limited by shares | Dissolved |
| UNI-CHEST COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CHEST LIMITED | Private company limited by shares | Dissolved |
| SKY UNIVERSE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GLORY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITY NATIONAL LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSAL LIMITED | Private company limited by shares | Live |
| CROWN UNIVERSAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ARROW LIMITED | Private company limited by shares | Dissolved |
| EAGLE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| EAGLE UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| EAGLE UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TOP UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SUPREME UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNISIN LIMITED | Private company limited by shares | Dissolved |
| UNITED TECHNOLOGY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO UNION (ASIA) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG FEDERATION OF TAIWAN UNIVERSITIES ALUMNI ASSOCIATION LIMITED -THE- | Company limited by guarantee | Live |
| TIME UNION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION MOTORS LIMITED | Private company limited by shares | Dissolved |
| SCORE UNION LIMITED | Private company limited by shares | Dissolved |