| NEW UNIVERSE RECYCLABLES LIMITED | Private company limited by shares | Live |
| SEVUITTON (YUANDONG) BRAND UNION ASSOCIATION LIMITED | Private company limited by shares | Live |
| GOLD UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| CHINA ZJJG UNITED DEVELOP ACCELERATE ASSOCIATION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION PCB DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| UNION-ARAB COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SPORT CLUB YOUTH DEVELOPMENT LIMITED | Company limited by guarantee | Live |
| UNITED NATIONS EMERGENCY ASSITANCE CENTRE LIMITED | Private company limited by shares | Dissolved |
| UNI-TREE TRADING LIMITED | Private company limited by shares | Dissolved |
| SK UNION LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION OIL SYSTEM HONG KONG LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIAL DESIGN LIMITED | Private company limited by shares | Dissolved |
| Union Automatization Group Limited | Private company limited by shares | Dissolved |
| UNITED PINE LIMITED | Private company limited by shares | Dissolved |
| HANSRPBR UNITED CO., LIMITED | Private company limited by shares | Dissolved |
| International Yoga Exchange Union Limited | Private company limited by shares | Live |
| GOLDEN UNION PRO LIMITED | Private company limited by shares | Live |
| UNITED BLOOM INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION SUCCESS INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION LINK (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNI-TEAM LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION GRAND PROFIT LIMITED | Private company limited by shares | Live |
| WIN UNION GRAND PROFIT LIMITED | Private company limited by shares | Dissolved |
| SPRING UNION LIMITED | Private company limited by shares | Live |
| UNITED WELL LIMITED | Private company limited by shares | Dissolved |
| UNITED ASIA PACIFIC INVESTMENT LIMITED | Private company limited by shares | Live |
| ASIA UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| KING UNION (H.K.) LIMITED | Private company limited by shares | Live |
| GOLDEN UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| GOLD UNIVERSAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIGLORY CENTURY LIMITED | Private company limited by shares | Dissolved |
| KING UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BIG UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| GRAND UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION CITIZEN LIMITED | Private company limited by shares | Live |
| UNION GLORY INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION DIAMOND FOOD MACHINERY CO., LIMITED | Private company limited by shares | Live |
| SKY UNION INDUSTRIES LIMITED | Private company limited by shares | Live |
| UNION SPEED DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA NET COMMUNICATION UNION LIMITED | Private company limited by shares | Dissolved |
| UNITED TACT LIMITED | Private company limited by shares | Dissolved |
| BEST UNITED TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNICARE MEDIQUIP COMPANY LIMITED | Private company limited by shares | Live |
| UNLIMITED CAPITAL LIMITED | Private company limited by shares | Live |
| GLOBAL WEALTH UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION DATA SYSTEM (CHINA) CO., LIMITED | Private company limited by shares | Live |
| Union Straffic Intelligent System Co., Limited | Private company limited by shares | Live |
| HONG KONG UNION INFORMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION JIEYUN (HK) INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Universal Textiles Group Limited | Private company limited by shares | Dissolved |
| Union Talent Establishment Limited | Private company limited by shares | Live |
| UNLEASH LIMITED | Private company limited by shares | Live |
| FULL UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FOUNDER UNISPLENDOR LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT CREATION LIMITED | Private company limited by shares | Live |
| UNION GREAT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION CROWN DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION DYNASTY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SMART UNITED TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION MAX HOLDINGS LIMITED | Private company limited by shares | Live |
| UNITEDCIGNA INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| FAST UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| HONGKONG PERMANENT UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Imagine Union Limited | Private company limited by shares | Live |
| UNITED SHIPPING SERVICE CO., LIMITED | Private company limited by shares | Live |
| HONGKONG UNION GROUP INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Live |
| NEW UNISON HOLDINGS LIMITED | Private company limited by shares | Live |
| BROKERS UNION LIMITED | Private company limited by shares | Live |
| UNION SQUARE HOLDINGS LIMITED | Private company limited by shares | Live |
| OCEAN UNION WORLDWIDE LIMITED | Private company limited by shares | Live |
| UNION WORLD INTERNATIONAL CAPITAL LIMITED | Private company limited by shares | Live |
| UNION CENTURY (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION TOP PROPERTIES LIMITED | Private company limited by shares | Live |
| CHINA UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| SKY UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SKY UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BEST UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| UNISON (HONGKONG) GROUP LIMITED | Private company limited by shares | Live |
| HONGKONG UNION CHEMICAL LIMITED | Private company limited by shares | Dissolved |
| UNION EAST HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION GRAND PROFIT LIMITED | Private company limited by shares | Dissolved |
| UNITED GRAND RICH LIMITED | Private company limited by shares | Dissolved |
| UNION CENTURY CONSTRUCTION HOLDINGS INT'L LIMITED | Private company limited by shares | Live |
| BEST UNIONS LIMITED | Company limited by guarantee | Live |
| RIGHT UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL BIO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION ALPHA CAAP CERTIFIED PUBLIC ACCOUNTANTS LIMITED | Private company limited by shares | Live |
| UNITED SMART ENTERPRISE LIMITED | Private company limited by shares | Live |
| SAN UNION INTERNATIONAL (HONGKONG) HOLDINGS LIMITED | Private company limited by shares | Live |
| UNITED GROUP INVESTMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Apr-2010 |
| UNION BEST INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BEST UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| FOREVER UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TOP INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNION WORLD GROUP HOLDINGS LIMITED | Private company limited by shares | Live |
| INTERNATIONAL UNION GROUP CO., LIMITED | Private company limited by shares | Live |
| ASEAN HUASHANG UNION (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION GROUP LIMITED | Private company limited by shares | Live |