| UNIQUE AUTOMATION LIMITED | Private company limited by shares | Live |
| UNIKOM LIMITED | Private company limited by shares | Live |
| Universe Catering Limited | Private company limited by shares | Live |
| UNITAS GLOBAL, LIMITED | Private company limited by shares | Live |
| UNIONGAIN ELECTRONICS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| CHINA INNOVATION UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| GOLD UNITED TRADING LIMITED | Private company limited by shares | Live |
| Star Union Education Limited | Private company limited by shares | Live |
| UNION DIAMOND LIMITED | Private company limited by shares | Live |
| DIAMOND UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION FULL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| WORLD UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| RICH UNION DEVELOPMENT INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HONG KONG UNIVERSE VISION COMPANY LIMITED | Private company limited by shares | Live |
| Union Made Marketing Limited | Private company limited by shares | Live |
| UNION TOTAL LIMITED | Private company limited by shares | Live |
| UNION 38 LIMITED | Private company limited by shares | Live |
| UNIVERSE 18 LIMITED | Private company limited by shares | Live |
| Underground HK Limited -The- | Private company limited by shares | Live |
| JADE UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Unicom Tech Electric Limited | Private company limited by shares | Live |
| UNIVERSE STAR CO., LIMITED | Private company limited by shares | Live |
| Grand Union Consultancy Service Limited | Private company limited by shares | Live |
| TEAM UNION CORPORATION LIMITED | Private company limited by shares | Live |
| ALL ASIAN UNIVERSE LIMITED | Private company limited by shares | Live |
| WIN UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| WAN QI UNITED TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Sunshine Union Exports Co., Limited | Private company limited by shares | Live |
| UNITED WAVE LIMITED | Private company limited by shares | Live |
| Universal Gold Coinex Limited | Private company limited by shares | Live |
| HONG KONG UNION TECH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL LED SOLUTION LIMITED | Private company limited by shares | Live |
| SURE UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Galactic Universe Limited | Private company limited by shares | Live |
| UNHAUS LIMITED | Private company limited by shares | Live |
| UNION SPACE ASIA LIMITED | Private company limited by shares | Live |
| RICH UNION TRANSPORTATION LIMITED | Private company limited by shares | Live |
| HONG KONG PINGTAN UNION ASSOCIATION LIMITED | Private company limited by shares | Live |
| HONG KONG KABADDI SPORT UNION LIMITED | Private company limited by shares | Live |
| Union Enterprise Holding Limited | Private company limited by shares | Live |
| Fulton Universal Investment Limited | Private company limited by shares | Live |
| WINE UNIVERSAL LIMITED | Private company limited by shares | Live |
| YAU UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Unipetroleum Company Limited | Private company limited by shares | Live |
| CORCORD UNION INDUSTRIAL DEVELOPMENT HK CO., LIMITED | Private company limited by shares | Live |
| UNION HOLIDAYS LIMITED | Private company limited by shares | Live |
| UNION CARGO INDUSTRY GROUP CO., LIMITED | Private company limited by shares | Live |
| INTERNATIONAL BUSINESS SHARING UNION LIMITED | Private company limited by shares | Live |
| UNION MARINE SERVICES (HK) CO., LIMITED | Private company limited by shares | Live |
| Unearth International Limited | Private company limited by shares | Live |
| TAKPO UNION LIMITED | Private company limited by shares | Live |
| Perpetual Universe Aviation Industry Group Limited | Private company limited by shares | Live |
| Union Intel Limited | Private company limited by shares | Live |
| Unisyn Technology Company Limited | Private company limited by shares | Live |
| Universal Art Lighting Limited | Private company limited by shares | Live |
| CHLOBALL UNIVERSAL TRADES CO., LIMITED | Private company limited by shares | Live |
| OYU UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNITED PETRO GROUP LIMITED | Private company limited by shares | Live |
| WELL UNION ENTERPRISE LIMITED | Private company limited by shares | Live |
| JOINT UNION CORPORATION LIMITED | Private company limited by shares | Live |
| GREEN UNION LIMITED | Private company limited by shares | Live |
| UNITED PETRO TRADING LIMITED | Private company limited by shares | Live |
| UNION JOIN (HK) LIMITED | Private company limited by shares | Live |
| UNION ABLE (HK) LIMITED | Private company limited by shares | Live |
| UNITED WORLD CHINESE FUND INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| UNITED WORLD CHINESE FUND MANAGEMENT CO., LIMITED | Private company limited by shares | Live |
| UNION IDEA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION KAM TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| KIND UNIVERSE TECH LIMITED | Private company limited by shares | Live |
| UNI-HICROSS LIMITED | Private company limited by shares | Live |
| UNIWELD CO., LIMITED | Private company limited by shares | Live |
| Sino Western Union Money Exchange Limited | Private company limited by shares | Live |
| UNITED FAME TRADING LIMITED | Private company limited by shares | Live |
| Union Mineral Limited | Private company limited by shares | Live |
| United AP Limited | Private company limited by shares | Live |
| OCM United 3 Limited | Private company limited by shares | Live |
| UNION INTERNATIONAL (ASIA) LIMITED | Private company limited by shares | Live |
| CHIA CHIN UNIVERSAL CO. LIMITED | Private company limited by shares | Live |
| United Trading Enterprise Limited | Private company limited by shares | Live |
| RICH UNION INDUSTRIES LIMITED | Private company limited by shares | Live |
| LUCKY UNION CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| Hong Kong Unigel Co., Limited | Private company limited by shares | Live |
| FULL UNION (HONG KONG) LIMITED | Private company limited by shares | Live |
| Unspun, Limited | Private company limited by shares | Live |
| UNION STEEL GROUP CO., LIMITED | Private company limited by shares | Live |
| UNION PROSPECT INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNIQUE ASSET LIMITED | Private company limited by shares | Live |
| WEALTHY UNIVERSAL LIMITED | Private company limited by shares | Live |
| CHINA ROBOT CHUANGKE EDUCATION UNION LIMITED | Private company limited by shares | Live Commenced dormancy on 22-Jun-2018 |
| CHAMPION UNITED INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIQUE LIMITED | Private company limited by shares | Live |
| HUGE UNION TRADING LIMITED | Private company limited by shares | Live |
| UNITED GRAND TRADING LIMITED | Private company limited by shares | Live |
| UNI-TOY COMPANY LIMITED | Private company limited by shares | Live |
| Hong Kong Artist union Co., Limited | Private company limited by shares | Live |
| UNION DESIGN AND PRODUCTION LIMITED | Private company limited by shares | Live |
| UNIVERSE 88 LIMITED | Private company limited by shares | Live |
| NAME UNION LIMITED | Private company limited by shares | Live |
| HONG KONG NEW UNION LIMITED | Private company limited by shares | Live |
| Esyn Union Technology HK Limited | Private company limited by shares | Live |