| TOP UNION (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE PRINTING COMPANY LIMITED | Private company limited by shares | Live |
| CHINA UNION DEVELOPMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| NEO UNIFORM LIMITED | Private company limited by shares | Live |
| WELL UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| GIANT UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNITED CENTURY GROUP COMPANY LIMITED | Private company limited by shares | Live |
| UNITED PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNITED SHIPPING LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNI-PACK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNI-WELL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL VICTORY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SMARTER LIMITED | Private company limited by shares | Live |
| UNIVERSE PUBLISHING GROUP LIMITED | Private company limited by shares | Dissolved |
| ON UNION MANAGEMENT LIMITED | Private company limited by shares | Live |
| EVER UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| CENTURY 21 UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNITED POWER LIMITED | Private company limited by shares | Live |
| SMART PRINCE UNIVERSAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL A.B.C. FOOTWEARS CO., LIMITED | Private company limited by shares | Dissolved |
| PROFIELD UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PROPERTIES FINANCE LIMITED | Private company limited by shares | Live |
| NEW UNITED LIMITED | Private company limited by shares | Live |
| UNION METAL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION CONSTRUCTION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| WISE UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION LIMITED | Private company limited by shares | Live |
| UNITED HARVEST INVESTMENT LIMITED | Private company limited by shares | Live |
| SMART UNION LIMITED | Private company limited by shares | Live |
| UNITED GAINER LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTH DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FAME ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION SMART HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| RICH UNION LIMITED | Private company limited by shares | Live |
| UNION MACHINERY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| N S UNITED CO. LIMITED | Private company limited by shares | Dissolved |
| UNIDISC LIMITED | Private company limited by shares | Dissolved |
| UNIRON (H.K.) LIMITED | Private company limited by shares | Live |
| UNION PROFITS LIMITED | Private company limited by shares | Live |
| UNION WEALTH (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNISON DECOR ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIQUE BEST LIMITED | Private company limited by shares | Live |
| UNIQUE PLANNER LIMITED | Private company limited by shares | Live |
| UNION TYRE BATTERY COMPANY LIMITED | Private company limited by shares | Live |
| UNION MARINE PRODUCTS TRADING CO., LIMITED | Private company limited by shares | Live |
| EVER UNISON INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNIFIT INDUSTRIAL SUPPLY CO., LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION PUBLISH GROUP LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| UNION WEALTHY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION SUN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNITED ASIA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIQUE FORCE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SYSTEM ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION (CHINA) PROCUREMENT LIMITED | Private company limited by shares | Dissolved |
| UNION-RICH TEXTILES TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL GAS ENGINEERING LIMITED | Private company limited by shares | Live |
| UNION GAINER LIMITED | Private company limited by shares | Dissolved |
| UNION GAINER HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL STUDENT UNION CO., LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE LIGHTING INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| UNILAND (HONG KONG) ENTERPRISE LIMITED | Private company limited by shares | Live |
| UNITEK POWER HK LIMITED | Private company limited by shares | Live |
| UNIVERSE INTERNATIONAL HOLDING GROUP LIMITED | Private company limited by shares | Dissolved |
| UNITED MINERAL METAL LIMITED | Private company limited by shares | Dissolved |
| UNITECH CIRCUIT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CHANCE (ASIA) LIMITED | Private company limited by shares | Dissolved |
| DRAGON UNITED INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED WEALTHY LIMITED | Private company limited by shares | Live |
| HONGKONG CENTURY UNION EXHIBITION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| T.F.F. INTERNATIONAL UNION GROUP (H.K.) LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION EXPORT TRADING LIMITED | Private company limited by shares | Dissolved |
| POWER UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| NEW UNION INDUSTRIAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION CULT LIMITED | Private company limited by shares | Live |
| UNISAN ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL CONSTRUCTION DESIGN (HONGKONG) LIMITED | Private company limited by shares | Live |
| UNIFUND INTERNATIONAL LIMITED | Private company limited by shares | Live Ceased dormancy on 07-Apr-2011 |
| UNIVERSAL MANAGEMENT EDUCATION LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION VICTORIA LIMITED | Private company limited by shares | Dissolved |
| UNION WELL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNITED LINK LIMITED | Private company limited by shares | Dissolved |
| UNION CENTURY LIMITED | Private company limited by shares | Live |
| HONG KONG UNITE-CAPITAL INT'L FINANCIAL LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNINTERRUPTED E (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SKY UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CORPORATE SERVICES LIMITED | Private company limited by shares | Live |
| UNION ELITE LIMITED | Private company limited by shares | Dissolved |
| UNITED GRAND LIMITED | Private company limited by shares | Live |
| UNIVERSAL BUS COMPANY LIMITED | Private company limited by shares | Live |
| UNION SHIPPING LIMITED | Private company limited by shares | Live |
| UNIWAY LIMITED | Private company limited by shares | Dissolved |
| UNION TRADE INVESTMENT LIMITED | Private company limited by shares | Dissolved |