| Underdogs Limited | Private company limited by shares | Live |
| UNIVERSAL AEROSPACE CO., LIMITED | Private company limited by shares | Live |
| UNION TREASURE ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION SKY INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNION VISION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION TEAM ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION GALLANT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| INFINITY UNITED INVESTMENT LIMITED | Private company limited by shares | Live |
| ERA UNION ASIA LIMITED | Private company limited by shares | Live |
| UNION EVER ENTERPRISES LIMITED | Private company limited by shares | Live |
| HK UNION FIELD LIMITED | Private company limited by shares | Live |
| MULTI BEST UNION LIMITED | Private company limited by shares | Live |
| UNION FAIR INVESTMENT LIMITED | Private company limited by shares | Live |
| Currency Union (International) Remittance Limited | Private company limited by shares | Live |
| Universal Agency Limited | Private company limited by shares | Live |
| UNION LEGEND INTERNATIONAL LOGISTICS LIMITED | Private company limited by shares | Live |
| Union Fraser Investments Limited | Private company limited by shares | Live |
| Union Sun Investments Limited | Private company limited by shares | Live |
| ZHUO SI UNIVERSAL TRADE CO., LIMITED | Private company limited by shares | Live |
| Union Blossom Investments Limited | Private company limited by shares | Live |
| AC UNION INDUSTRIAL AND TRADING CO., LIMITED | Private company limited by shares | Live |
| Universal Trade And Investment Company Limited | Private company limited by shares | Live |
| Union Intelligent Technology Co., Limited | Private company limited by shares | Live |
| New Union Restaurant Limited | Private company limited by shares | Live |
| CHEER UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Unimind International Jewelry Co., Limited | Private company limited by shares | Live |
| UNION SMART RICH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION HEALTH TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION SPREAD LIMITED | Private company limited by shares | Live |
| GT Racing Union Limited | Private company limited by shares | Live |
| CHIEF UNIVERSE LIMITED | Private company limited by shares | Live |
| OCEAN UNIVERSE INC LIMITED | Private company limited by shares | Live |
| DISCIPLES OF SHAOLIN SONGSHAN CHINA UNION LIMITED | Private company limited by shares | Live |
| ALL-IN UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| LUCKY UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| TECH UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION PROSPEROUS TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| CHARM UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION SUN TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| RICH UNITED LIMITED | Private company limited by shares | Live |
| UNIVERSE STAR TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION DUPLEX LIMITED | Private company limited by shares | Live |
| UNIQUE STANDARD LIMITED | Private company limited by shares | Live |
| BIG UNION CORPORATION LIMITED | Private company limited by shares | Live |
| SKY UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION KING (ASIA) LIMITED | Private company limited by shares | Live |
| UNION RICH WEALTH CREATION LIMITED | Private company limited by shares | Live |
| UNION WISE TRADING LIMITED | Private company limited by shares | Live |
| SHENZHEN UNION MEDIA COMPANY LIMITED | Private company limited by shares | Live |
| UNION HILL TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| United Pro Limited | Private company limited by shares | Live |
| BRAVE UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| Ali Union Trading Group Co., Limited | Private company limited by shares | Live |
| FULLY UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONGKONG UNION NEW MATERIAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| GRAND UNITY LIMITED | Private company limited by shares | Live |
| UNITY MEGA TRADE LIMITED | Private company limited by shares | Live |
| Joy Universal Limited | Private company limited by shares | Live |
| UNISIGHT LIMITED | Private company limited by shares | Live Commenced dormancy on 08-Nov-2018 |
| CENTRAL UNION (HK) LIMITED | Private company limited by shares | Live |
| FULL UNION (HK) TRADING LIMITED | Private company limited by shares | Live |
| UNIVERSE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| New Union International Limited | Private company limited by shares | Live |
| Uni-biotic Company Limited | Private company limited by shares | Live |
| GLOBAL UNION HK INVESTMENT LIMITED | Private company limited by shares | Live |
| SMART UNION CONSTRUCTION LIMITED | Private company limited by shares | Live |
| UNION CREATION INC. LIMITED | Private company limited by shares | Live |
| Go Universe Limited | Private company limited by shares | Live |
| GREAT UNION COSMOS LIMITED | Private company limited by shares | Live |
| Unii Design Limited | Private company limited by shares | Live |
| UNION CONTROL LIMITED | Private company limited by shares | Live |
| UNION EXPRESS INC LIMITED | Private company limited by shares | Live |
| UNION SINO INC LIMITED | Private company limited by shares | Live |
| UNION CHINA INVESTMENT LIMITED | Private company limited by shares | Live |
| EVERHOLD UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| SPEEDY UNITED LIMITED | Private company limited by shares | Live |
| UNION JOIN LIMITED | Private company limited by shares | Live |
| UNION LEAD (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNITED WELL PROPERTIES LIMITED | Private company limited by shares | Live |
| UNIQUE HAPPY LIMITED | Private company limited by shares | Live Commenced dormancy on 08-Oct-2018 |
| Union Hygiene Products Co., Limited | Private company limited by shares | Live |
| EASY UNION GROUP LIMITED | Private company limited by shares | Live |
| Uniquedu Learning Centre Limited | Private company limited by shares | Live |
| UNION PACIFIC TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| STAR UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION FOUNDATION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION POWER TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNIKITE ENTERPRISES (HK) COMPANY LIMITED | Private company limited by shares | Live |
| CREATION UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION WOOD (HK) LIMITED | Private company limited by shares | Live |
| HK INT'L COMMODITY UNION TRADING CENTER LIMITED | Private company limited by shares | Live |
| Kaiser Union Holding Limited | Private company limited by shares | Live |
| CHINA WEALTH MANAGEMENT PLANNER UNITED LIMITED | Private company limited by shares | Live |
| Shanghai Union Pharmaceutical Machinery Co., Limited | Private company limited by shares | Live |
| China Chinese-Style Food Industry International United Co., Limited | Private company limited by shares | Live |
| UNION TIMON LIMITED | Private company limited by shares | Live |
| UNIC TV Limited | Private company limited by shares | Live |
| UNION KEEN INVESTMENT LIMITED | Private company limited by shares | Live |
| OCEAN UNION LIMITED | Private company limited by shares | Live |
| UNISON TECHNOLOGY LIMITED | Private company limited by shares | Live |