| WORLD CHINESE ARTISTS CHINA PEACE UNIFIED ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| NEW ENERGY UNION GROUP HOLDING CO., LIMITED | Private company limited by shares | Live |
| NEW UNION INTERNATIONAL DEVELOP LIMITED | Private company limited by shares | Live |
| AC UNION INDUSTRIAL AND TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| Uniteck Medical Co., Limited | Private company limited by shares | Dissolved |
| UNION FIRST (H.K.) LIMITED | Private company limited by shares | Live |
| World Union Group Limited | Private company limited by shares | Live |
| UNIPRODUCT NETWORK LIMITED | Private company limited by shares | Live |
| HK VINO PHOTOGRAPH UNION LIMITED | Private company limited by shares | Live |
| BEST UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNITED TRADING LUCKY LIMITED | Private company limited by shares | Live |
| UNINESS MARINE (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| UNIVERSAL EPOCH LIMITED | Private company limited by shares | Live |
| SILVER WEALTH UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION SKY TRADING LIMITED | Private company limited by shares | Dissolved |
| SOURCE UNION INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| Universal Parents Service (Hong Kong) Limited | Private company limited by shares | Live |
| Eupple Lighting Union Limited | Private company limited by shares | Live |
| UniEn Solutions Limited | Private company limited by shares | Dissolved |
| UNIFORTUNE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION GALAXY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ANGEL UNION (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPECT CORPORATION LIMITED | Private company limited by shares | Live |
| HONGKONG UNION HOLDINGS INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNIVERSE INTERNATIONAL DATA LIMITED | Private company limited by shares | Live |
| UNIQUE WAY ENTERPRISE LIMITED | Private company limited by shares | Live Commenced dormancy on 26-Feb-2016 |
| UNIQGIFT LIMITED | Private company limited by shares | Live |
| UNIVERSAL CORPORATE CONSULTING LIMITED | Private company limited by shares | Live |
| KINGLY UNITED INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| COMERCIO UNION INNOVADOR IMPORTEXPORT LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI UNISAILING INT'L CO., LIMITED | Private company limited by shares | Live |
| UNISOURCE INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNITED BROTHERS TRADING COMPANY LIMITED | Private company limited by shares | Live |
| UNIPOINT (HONG KONG) INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| UNIVERSAL VISION (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONGKONG UNION WIN INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| WFT Underwear Co., Limited | Private company limited by shares | Live |
| PINGHU UNITED UNION HK LIMITED | Company limited by guarantee | Live |
| UNIQUE DYNAMIC LIMITED | Private company limited by shares | Live |
| Universal Morning Metal Material Limited | Private company limited by shares | Live |
| UNITED WORLD CHINESE MEDICAL RESEARCH GROUP LIMITED | Private company limited by shares | Live |
| Common Union Management Limited | Private company limited by shares | Live |
| MEGA UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| EASTERN UNION ENTERPRISE CORP LIMITED | Private company limited by shares | Live |
| UNITED KIDS-GENETECH CENTER LIMITED | Private company limited by shares | Live |
| OUTSTANDING UNION LIMITED | Private company limited by shares | Live |
| UNION TENDA HK LIMITED | Private company limited by shares | Live |
| SINO UNION TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNITED NATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION CHOICE PROPERTIES LIMITED | Private company limited by shares | Live |
| International President and General Secretary Union Limited | Private company limited by shares | Dissolved |
| KIND UNION LIMITED | Private company limited by shares | Live |
| METRO UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| MASTER UNION CORPORATION LIMITED | Private company limited by shares | Live |
| AKERS INTERNATIONAL UNION FOOD (ASIA) LIMITED | Private company limited by shares | Dissolved |
| PCB UNITED LIMITED | Private company limited by shares | Live |
| UNITSHIP CRUISES LIMITED | Private company limited by shares | Live |
| STAR UNIVERSE INT'L HOLDGS LIMITED | Private company limited by shares | Live |
| CHAVIS UNION INDUSTRY (H.K) CO., LIMITED | Private company limited by shares | Live |
| KH UNION (HONG KONG) LIMITED | Private company limited by shares | Live |
| SEA UNION (GRG) CONTRACTING LIMITED | Private company limited by shares | Live |
| OCEAN UNION (HK) HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNIQUE METAL LIMITED | Private company limited by shares | Dissolved |
| JIANGXI UNION MINING (HK) CO., LIMITED | Private company limited by shares | Live |
| NICE UNION (HONG KONG) LIMITED | Private company limited by shares | Live |
| ASIA INTERNATIONAL EXHIBITION UNION CO., LIMITED | Private company limited by shares | Live |
| Great Union Human Capital Limited | Private company limited by shares | Live |
| Union World Trading Co., Limited | Private company limited by shares | Dissolved |
| UNION JADE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION SCORPIO CO., LIMITED | Private company limited by shares | Live |
| INTERNATIONAL LOVE PUBLIC CHARITY UNITED CO., LIMITED | Private company limited by shares | Live |
| UNION D'EXPERTS HONG KONG & SHENZHEN COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LUCK INTERNATIONAL DEVELOP LIMITED | Private company limited by shares | Live |
| BROAD UNION INTERNATIONAL DEVELOP LIMITED | Private company limited by shares | Live |
| Unicus bullion Limited | Private company limited by shares | Live |
| DAOZE UNIVERSAL INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Live |
| UNION RICH INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION SKY ASIA LIMITED | Private company limited by shares | Live |
| NORTH UNION HOLDING (HK) GROUP LIMITED | Private company limited by shares | Live |
| OCEAN UNION INDUSTRIES LIMITED | Private company limited by shares | Live |
| INVESTMENTS UNION LIMITED | Private company limited by shares | Live |
| CAPITAL UNITED GROUP LIMITED | Private company limited by shares | Live |
| SILVER UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| TFG Chengdu Business Unit Limited | Private company limited by shares | Live |
| UNIWORLD TRADE COMPANY LIMITED | Private company limited by shares | Live |
| Union of Catholic Training Networks Pty Limited | Private company limited by shares | Live |
| ASIA UNION (HK) GLOBAL HOLDING LIMITED | Private company limited by shares | Live |
| CHINA UNIVERSITIES ALUMNI FEDERATION LIMITED | Private company limited by shares | Live |
| UNILUMIN LIGHTING LIMITED | Private company limited by shares | Live |
| UNION SUNNY LIMITED | Private company limited by shares | Live |
| UNISKY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| VIESON UNDERWEAR ACCESSORIES CO., LIMITED | Private company limited by shares | Live |
| UNI-BIOSCIENCE PHARM COMPANY LIMITED | Private company limited by shares | Live |
| STRAIT UNION PAPER (GROUP) CO., LIMITED | Private company limited by shares | Live Commenced dormancy on 14-Oct-2014 |
| JUAG Josefs Unternehmungen AG HK Limited | Private company limited by shares | Live |
| UNITED POWER-TECH LIMITED | Private company limited by shares | Live |
| UNION SALES LIMITED | Private company limited by shares | Live |
| UNION WISE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| C UNION INTERNATIONAL DEVELOPMENT CORPORATION CO., LIMITED | Private company limited by shares | Live |
| Spirits Union Limited | Private company limited by shares | Live |