| UNION INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| GOOD UNION CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| LUCK UNION ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| UNION WORLDWIDE LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |
| UniCard Solution Limited | Private company limited by shares | Live |
| HONGKONG GLOBLE UNITED QUARRIES GROUP CO., LIMITED | Private company limited by shares | Live |
| Stratford Universal Limited | Private company limited by shares | Live |
| UNION PROSPER INTERNATIONAL DEVELOP LIMITED | Private company limited by shares | Live |
| Union Rich Technology (Hk) Limited | Private company limited by shares | Live |
| UNION SHIP SERVICES CO., LIMITED | Private company limited by shares | Live |
| 3G UNION LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UnitedStack (HongKong) Limited | Private company limited by shares | Live |
| POLLY UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| UNIVERSE SAMFINE LIMITED | Private company limited by shares | Live |
| UNIVERSAL INVESTMENTS GROUP LIMITED | Private company limited by shares | Live |
| UniMax Digital Limited | Private company limited by shares | Dissolved |
| UNIQUE UP LIMITED | Private company limited by shares | Live |
| Hong Kong Binfen Seamless Underwear Industrial Co., Limited | Private company limited by shares | Live |
| UNION FORTUNE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| EXCEL UNION LIMITED | Private company limited by shares | Live |
| UNDERCURRENT RISK MANAGEMENT LIMITED | Private company limited by shares | Live |
| United Creative Agency Limited | Private company limited by shares | Live |
| J&H UNION TRADING LIMITED | Private company limited by shares | Live |
| UNITARY INTO (MAO) AUSPICIOUS INVESTMENTS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION LINK CPA LIMITED | Private company limited by shares | Live |
| UNION ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| CHINA UNION CAPITAL (HK) MANAGEMENT LIMITED | Private company limited by shares | Live |
| UNENDING TRADING LIMITED | Private company limited by shares | Live |
| RICH UNIVERSAL INC LIMITED | Private company limited by shares | Dissolved |
| SINO-ASIA UNION PETRIFACTION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION GLORY INTERNATIONAL SHIPPING LIMITED | Private company limited by shares | Live |
| SURPLUS UNION HONG KONG GROUP LIMITED | Private company limited by shares | Live |
| STAR UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Hangzhou Union Electrical Limited | Private company limited by shares | Live |
| THOUSAND UNIVERSE LIMITED | Private company limited by shares | Live |
| MASTER UNION INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| SOUTHERN MEDIA UNION GROUP CO., LIMITED | Private company limited by shares | Live |
| GEM UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HK UNITED POWERFUL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIQUE TRADING SOLUTIONS LIMITED | Private company limited by shares | Live |
| SMART UNION INTERNATIONAL LOGISTICS LIMITED | Private company limited by shares | Live |
| UNIVERSE INTERNATIONAL PROPERTIES LIMITED | Private company limited by shares | Live |
| GOAL UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| United Numerix Limited | Private company limited by shares | Live |
| UNION SPEED TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MICRO UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHINA HIGH-TECHNOLOGY INDUSTRIAL UNION LIMITED | Private company limited by shares | Live |
| UNITED HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| Union Smart International Limited | Private company limited by shares | Live |
| GROUP UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| MILLIONS UNION (CHINA) LIMITED | Private company limited by shares | Live |
| UNION RICH BUILDING MATERIAL LIMITED | Private company limited by shares | Dissolved |
| UNIFIED INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| HANYA UNDERWEAR CO., LIMITED | Private company limited by shares | Live |
| HK UNIQUE COLLECTION LIMITED | Private company limited by shares | Live |
| United Will International Trade (HK) Co., Limited | Private company limited by shares | Live |
| Well Union Transportation Limited | Private company limited by shares | Live |
| UNION RICH TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SILVER UNION INTERNATIONAL EXCHANGE FOUNDATION LIMITED | Private company limited by shares | Live |
| USA MFBIL UNIFIED LUBRICANTS (SHANGHAI) CO., LIMITED | Private company limited by shares | Dissolved |
| UNIVENTURE LIMITED | Private company limited by shares | Live |
| UNITECH INDUSTRY HONGKONG CO., LIMITED | Private company limited by shares | Live |
| UNISEA (SHANG HAI) CO., LIMITED | Private company limited by shares | Live |
| GLOBAL UNION INC LIMITED | Private company limited by shares | Live |
| HONGKONG UNION TRADER INVESTMENT LIMITED | Private company limited by shares | Live |
| DRAGON UNIVERSE INT'L TRADING LIMITED | Private company limited by shares | Live |
| WORLD CHINESE ART UNION LIMITED | Private company limited by shares | Live |
| Union Square Studio Limited | Private company limited by shares | Live |
| UNIFIED TRADE IMPORT AND EXPORT (HK) CO., LIMITED | Private company limited by shares | Live |
| UNITED FULL LIMITED | Private company limited by shares | Live |
| CHINA MINERS UNION CO., LIMITED | Private company limited by shares | Live |
| CLOVER UNION INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| RETECH UNION GROUP CO., LIMITED | Private company limited by shares | Live |
| QSC WISDOM UNIVERSE LIMITED | Private company limited by shares | Live |
| EASTERN UNION NAVIGATION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SYNDICATE TRADING LIMITED | Private company limited by shares | Live |
| HONGKONG BRIGHT UNION INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| United Crown (Ningbo) Limited | Private company limited by shares | Live |
| UNIVERSAL (C-HK) LIMITED | Private company limited by shares | Live |
| UNION BASE ENTERPRISES LIMITED | Private company limited by shares | Live |
| DRAGONS UNION GROUP (H.K.) LIMITED | Private company limited by shares | Live |
| UNIVERSAL ELITE LIMITED | Private company limited by shares | Live |
| United Nations Urgent Help China Center Limited | Private company limited by shares | Live |
| ASIA UNITED INVESTMENT LIMITED | Private company limited by shares | Live |
| P2 United Limited | Private company limited by shares | Live |
| UNION KINGDOM INVESTMENTS LIMITED | Private company limited by shares | Live |
| WISE UNITED INVESTMENTS LIMITED | Private company limited by shares | Live |
| JOY UNION TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Hongkong Unison Industrial Company Limited | Private company limited by shares | Live |
| MEGA UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNI-WELL INC LIMITED | Private company limited by shares | Live |
| ELITE UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNIQUE LEADER INC LIMITED | Private company limited by shares | Live |
| SMART UNIONS LIMITED | Private company limited by shares | Live |
| UNIVERSE TOP LIMITED | Private company limited by shares | Live |
| GEM UNION LIMITED | Private company limited by shares | Live |
| HK MAIFENG SHANGTIAN UNION DESIGN LIMITED | Private company limited by shares | Live |
| C.L UNDERTAKERS LIMITED | Private company limited by shares | Live |