| UNION BUILDING MATERIAL INDUSTRY LIMITED | Private company limited by shares | Live |
| WIDE UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| TRUE UNION CORPORATION LIMITED | Private company limited by shares | Live |
| Esports Union Limited | Company limited by guarantee | Live |
| THINKA UNIVERSAL LIMITED | Private company limited by shares | Live |
| HONG KONG TRI UNION RESOURCES LIMITED | Private company limited by shares | Live |
| UNITI INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ADVANCE UNION INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| Northern Universe Biotech Limited | Private company limited by shares | Live |
| Hong Kong Union Capital Company Limited | Private company limited by shares | Live |
| UNION SERIES LIMITED | Private company limited by shares | Live |
| QUEEN UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| CHINA INTERNATIONAL GRAPHENE INDUSTRY UNION LIMITED | Private company limited by shares | Live |
| UNION COUNTRY LIMITED | Private company limited by shares | Live |
| Uni-Smart Solution Technology Limited | Private company limited by shares | Live |
| Union Fire Protection Technology Company Limited | Private company limited by shares | Live |
| Universal Dreams Group fashion Limited | Private company limited by shares | Live |
| Union (Hong Kong) Business Trading Limited | Private company limited by shares | Live |
| MEGA UNIVERSAL CENTRE LIMITED | Private company limited by shares | Live |
| UNION TENDER LIMITED | Private company limited by shares | Live |
| LIDA UNION LIMITED | Private company limited by shares | Live |
| AERO UNION SERVICES LIMITED | Private company limited by shares | Live |
| Union Link Asia Holdings Limited | Private company limited by shares | Live |
| UniCorp Solutions Limited | Private company limited by shares | Live |
| UNIGO INTERNATIONAL FORWARDING (HONGKONG) LIMITED | Private company limited by shares | Live |
| WELL UNION INC. LIMITED | Private company limited by shares | Live |
| UNION FULLRICH TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| GUO TONG UNIVERSAL FOODS COMPANY LIMITED | Private company limited by shares | Live |
| Fai Union Development Limited | Private company limited by shares | Live |
| TOURISM GREEN UNION LIMITED | Private company limited by shares | Live |
| United Zone Investment Holding Company Limited | Private company limited by shares | Live |
| UniBay Enterprises Limited | Private company limited by shares | Live |
| GREAT UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| EVER UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Unistar System Limited | Private company limited by shares | Live |
| Shenzhen United Power-Tech Limited | Private company limited by shares | Live |
| Chuangjia United Trading Limited | Private company limited by shares | Live |
| UNITECH PH DAECHANG HOLDING (HK) LIMITED | Private company limited by shares | Live |
| UNION WIN GROUP LIMITED | Private company limited by shares | Live |
| UNITATIS LIMITED | Private company limited by shares | Live |
| UNIGLOBAL SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| PINE UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Union Fu Wah International Limited | Private company limited by shares | Live |
| UNION WORLD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| ASIA UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION CREATION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION FULL TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION KENT TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION TOPSTAR TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION WAY CREDIT (TST) LIMITED | Private company limited by shares | Live |
| UNION WAY CREDIT (SS) LIMITED | Private company limited by shares | Live |
| UniClean Limited | Private company limited by shares | Live |
| United Beauty Cosmetics Limited | Private company limited by shares | Live |
| UNIVERSIAL COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSE BUSINESS CONSULTING LIMITED | Private company limited by shares | Live |
| Universe Ecology Co., Limited | Private company limited by shares | Live |
| PEACEFUL UNIVERSE HONG KONG LIMITED | Private company limited by shares | Live |
| Universe Dynamic Technology Co., Limited | Private company limited by shares | Live |
| Commercial Union Charity Association Limited | Company limited by guarantee | Live |
| RICH UNION GROUP HOLDING LIMITED | Private company limited by shares | Live |
| UNAFORMA LIMITED | Private company limited by shares | Live |
| unionbro electronics co., Limited | Private company limited by shares | Live |
| PEARLSTAR UNIVERSAL LIMITED | Private company limited by shares | Live |
| PREEMINENT UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL EXPORTS TRADING LIMITED | Private company limited by shares | Live |
| Unithaina Venture Co., Limited | Private company limited by shares | Live |
| United One Transportation Limited | Private company limited by shares | Live |
| MASS UNION LIMITED | Private company limited by shares | Live |
| HARVEST UNION LIMITED | Private company limited by shares | Live |
| Chinese Family Office Union Limited | Private company limited by shares | Live |
| Universal Ocean Yachts Limited | Private company limited by shares | Live |
| UNITED SMART CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| WEALTH UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| LINFY UNIVERSAL STUDIO LIMITED | Private company limited by shares | Live |
| Unique Immigration Service Limited | Private company limited by shares | Live |
| SOUTH UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Champion Union HK Holdings Limited | Private company limited by shares | Live |
| NEW UNION CENTURY LIMITED | Private company limited by shares | Live |
| UNION PROPERTY MANAGEMENT LIMITED | Private company limited by shares | Live |
| BEST UNION LEADER LIMITED | Private company limited by shares | Live |
| ASSET UNDERWEAR HONG KONG LIMITED | Private company limited by shares | Live |
| UNION SINO ENTERPRISES LIMITED | Private company limited by shares | Live |
| Cleveland Universe Limited | Private company limited by shares | Live |
| SHANDONG UNITRON TYRE&RUBBER CO., LIMITED | Private company limited by shares | Live |
| Asia Union Financial Technology Co., Limited | Private company limited by shares | Live |
| Asia Union Financial Group Co., Limited | Private company limited by shares | Live |
| UNION SAGE LIMITED | Private company limited by shares | Live |
| Union Trade Industry Co., Limited | Private company limited by shares | Live |
| International yoga instructor union LIMITED | Private company limited by shares | Live |
| KINDLY UNION CO., LIMITED | Private company limited by shares | Live |
| Unius HK Limited | Private company limited by shares | Live |
| UNION SKY CONSULTANTS LIMITED | Private company limited by shares | Live |
| Shengmu United Limited | Private company limited by shares | Live |
| Star Union Tech Company Limited | Private company limited by shares | Live |
| GOLDEN UNION MEGA TRADE LIMITED | Private company limited by shares | Live |
| UNITED CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| EASTERN UNIVERSAL LIMITED | Private company limited by shares | Live |
| YK Universe Company Limited | Private company limited by shares | Live |
| Universal Holding Limited | Private company limited by shares | Live |
| United Sports Limited | Private company limited by shares | Live |