| GREAT UNIVERSE INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SOARING UNIVERSE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNILEVER (USA) HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNION POLYMER COMPANY LIMITED | Private company limited by shares | Live |
| CHINA ZHOUYI UNION LIMITED | Private company limited by shares | Live |
| CHINA SERVICE CHAIN UNITED (GROUP) CO., LIMITED | Private company limited by shares | Dissolved |
| UNION BUSINESS LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL FAMOUS ENTERPRISE UNION PROMOTION ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| UNIQUE DRAGON INVESTMENT LIMITED | Private company limited by shares | Live |
| MEGA UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNITED DIGITAL MULTI-MEDIA LIMITED | Private company limited by shares | Dissolved |
| NEW UNION PERFECT POINT TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNDYEL (HONGKONG) CORPORATION LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL (CHINA) LIMITED | Private company limited by shares | Live |
| EXCELLENT UNION ACCESSORIES LIMITED | Private company limited by shares | Dissolved |
| HK UNION INT'L INVESTMENT TRADING LIMITED | Private company limited by shares | Dissolved |
| CREATIVE UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION FAIR LIMITED | Private company limited by shares | Live |
| SPECIALIST UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNITEK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIMAX LIMITED | Private company limited by shares | Live |
| UNION OCEAN SHIPPING LIMITED | Private company limited by shares | Live |
| KING UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| MANFUL UNIVERSAL LIMITED | Private company limited by shares | Live |
| JETSTAR UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNISOURCE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| VAST UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| HONG KONG MUSICIANS' UNION LIMITED | Private company limited by shares | Dissolved |
| HK SHEYOUNG UNDERCLOTHES LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION INTERNATIONAL (HOLDINGS) LIMITED | Private company limited by shares | Live |
| OCEAN UNION PROFESSIONAL DESTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| EASYLINE UNION FURNITURE LIMITED | Private company limited by shares | Dissolved |
| UNISON FORTUNE (H.K) CO., LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SKY UNIVERSE GROUP LIMITED | Private company limited by shares | Live |
| UNION SOLAR INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TANK LIMITED | Private company limited by shares | Live |
| UNITECH ENERGY LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE AUTOMOBILE MODEL ORGANIZATION LIMITED | Private company limited by shares | Dissolved |
| JOIN UNION ASIA LIMITED | Private company limited by shares | Dissolved |
| UNI-FORCE LIMITED | Private company limited by shares | Live |
| Unga Manufacturing Limited | Private company limited by shares | Live |
| UNION GLOBAL INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FASHION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| TOP UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT ENTERPRISE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| PRIMER UNIGLOBE LIMITED | Private company limited by shares | Live |
| GOLDEN UNION ASIA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNI-TECH (SOUTH EAST ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNION BASE METAL CORPORATION LIMITED | Private company limited by shares | Live |
| ALLIANCE UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNICENT CO., LIMITED | Private company limited by shares | Live |
| NETWORK UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION ON PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION BEST TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNISAL INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| MEGA UNION (HK) LIMITED | Private company limited by shares | Dissolved |
| UNILEG CHINA ENTERPRISES LIMITED | Private company limited by shares | Live |
| FULLY UNION LIMITED | Private company limited by shares | Live |
| ELITE UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA INDUSTRIAL LIMITED | Private company limited by shares | Live |
| EAGLE UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ELECTRO-PLATING FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL INVESTMENT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION HONG KONG DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Starr Underwriting Agents (Asia) Limited | Private company limited by shares | Live |
| Undercover Asia Limited | Private company limited by shares | Live |
| HONG KONG PHOENIX UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SOUTHERN UNION (H. K.) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNITRADE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU WUYANGLIFAN UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNI-TRANS INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| ASIA UNITED RESOURCES LIMITED | Private company limited by shares | Live |
| EARTH UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNICAPITAL INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIPEARL LIMITED | Private company limited by shares | Dissolved |
| UNITED FOCUS EM LIMITED | Private company limited by shares | Dissolved |
| UNION HANSE EDUCATION (CHINA) LIMITED | Private company limited by shares | Live |
| UNION LINK (HK) LIMITED | Private company limited by shares | Dissolved |
| UNIWEALTH KNITTING FACTORY LIMITED | Private company limited by shares | Live |
| UNISON HONG KONG INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION FAITH INVESTMENT LIMITED | Private company limited by shares | Live |
| PACIFIC UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION GLORY HOLDINGS LIMITED | Private company limited by shares | Live |
| OCEAN UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| CHINA-EUROPE UNION INDUSTRY INV. GROUP LIMITED | Private company limited by shares | Dissolved |
| CHINA-EUROPE UNION ECONOMY TRADING FORUM LIMITED | Private company limited by shares | Dissolved |
| ANB UNICO LIMITED | Private company limited by shares | Live |
| UNI-STAR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SMART UNIVERSAL INDUSTRIAL (CHINA) LIMITED | Private company limited by shares | Dissolved |
| Brothers Union International Holding Limited | Private company limited by shares | Dissolved |
| SILVER UNION CENTURY LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPER INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| TRINITY UNIQUE LIMITED | Private company limited by shares | Live |
| UNITEK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPER INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPER INTERNATIONAL TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| UNIQUE AUDIO LIMITED | Private company limited by shares | Dissolved |