| UNION POWER PTY LIMITED | Private company limited by shares | Live |
| UNIONCOVER COMPANY LIMITED | Private company limited by shares | Live |
| MEGA UNION INVESTMENT HOLDINGS CO., LIMITED | Private company limited by shares | Live Commenced dormancy on 12-May-2016 |
| HOLD UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Union Bag Industrial Co., Limited | Private company limited by shares | Live |
| China Cardspay Union Network Co. Limited | Private company limited by shares | Live |
| Union Express Aviation Limited | Private company limited by shares | Live |
| HK YOUNG&MIDDLE-AGED BUSINESS UNION OF CHINA, LIMITED | Private company limited by shares | Live |
| UNION CHANGJIANG TRADING (HK) LIMITED | Private company limited by shares | Live |
| UNION CATERING CONCEPTS LIMITED | Private company limited by shares | Live |
| HEZONG UNION INT'L GROUP LIMITED | Private company limited by shares | Live |
| Union Dragon Design & Contracting Company Limited | Private company limited by shares | Live |
| UNION WORLD MANAGEMENT LIMITED | Private company limited by shares | Live |
| ASIA CHEER UNION LIMITED | Company limited by guarantee | Live |
| China Red Wisdom Business Union Limited | Private company limited by shares | Live |
| SILVER UNION AUCTION LIMITED | Private company limited by shares | Live |
| SILVER UNION MUSEUM LIMITED | Private company limited by shares | Live |
| GUAN GONG CULTURE WORLD UNION LIMITED | Company limited by guarantee | Live |
| UNIVERSAL INTERNATIONAL UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| GOLD UNION STEEL LIMITED | Private company limited by shares | Live |
| HK Union Fortune International Co., Limited | Private company limited by shares | Live |
| Bravo Union Limited | Private company limited by shares | Live |
| UNION WEALTHY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION POWER ENTERPRISE LIMITED | Private company limited by shares | Live |
| SEA DWELLER UNION COMPANY LIMITED | Company limited by guarantee | Dissolved |
| Union Motors Trading Limited | Private company limited by shares | Live |
| DELUXE UNION LIMITED | Private company limited by shares | Live |
| China Culture & Arts Union Limited | Private company limited by shares | Live |
| UNION GROUP GLOBAL TRADING CO., LIMITED | Private company limited by shares | Live |
| SINO ENTERPRISER UNION INTERNATIONAL WELLNESS & HOLIDAY STOCK LIMITED | Private company limited by shares | Live |
| Yacht Union Network International Share Limited | Private company limited by shares | Live |
| UNIO Limited | Private company limited by shares | Live |
| CHINA ENTERPRISE UNION GROUP LIMITED | Private company limited by shares | Live |
| CHINA CAR UNION ASSOCIATION CO., LIMITED | Private company limited by shares | Live |
| UNION WISE MATERIALS (HK) LIMITED | Private company limited by shares | Live |
| STARS UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| CHILDREN AND PARENTS UNION LIMITED | Company limited by guarantee | Live |
| BEST UNION TRAVEL (HK) LIMITED | Private company limited by shares | Live |
| UNION MARK CORPORATION LIMITED | Private company limited by shares | Live |
| TONG TRADING UNION LIMITED | Private company limited by shares | Live |
| Hong Kong Union Pay Service Company Limited | Private company limited by shares | Live |
| UNION RAMON COMPANY LIMITED | Private company limited by shares | Live |
| China Tridacna Art Boutique Union Association Limited | Private company limited by shares | Live |
| WORLD CULTURES INDUSTRY EXCHANGE UNION LIMITED | Private company limited by shares | Live |
| International Union of Food Development Co., Limited | Private company limited by shares | Live |
| UNION SNK & CHINA TRADING LIMITED | Private company limited by shares | Live |
| GRAND UNION INTERNATIONAL INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |
| CHINA COACH UNION CO., LIMITED | Private company limited by shares | Live |
| Union Sky Sourcing Corporation Limited | Private company limited by shares | Live |
| UNION SHINY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| China Business Association Union Limited | Private company limited by shares | Live |
| Fortune Union Develop Limited | Private company limited by shares | Live |
| UNION GLORY ASSET MANAGEMENT (HK) LIMITED | Private company limited by shares | Live |
| CHEER UNION CORPORATION LIMITED | Private company limited by shares | Live |
| Union Gain Electronics Co., Limited | Private company limited by shares | Live |
| CHANGJIANG UNION INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| UNION TOP CREATION (HK) CO., LIMITED | Private company limited by shares | Live |
| EAGLE UNION CORPORATION LIMITED | Private company limited by shares | Live |
| NATION UNION LIMITED | Private company limited by shares | Live |
| Union Optech (HK) Co., Limited | Private company limited by shares | Live |
| Golden Union Agrochemical (H.K.) Co., Limited | Private company limited by shares | Live |
| ZAN MEN JIA BUSINESS UNION LIMITED | Private company limited by shares | Dissolved |
| UNION DRAGON (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION CREATE INDUSTRIAL LIMITED | Private company limited by shares | Live |
| GREAT UNION INDUSTRY LIMITED | Private company limited by shares | Live |
| UNION ACCORD LIMITED | Private company limited by shares | Live |
| UNION FIRST ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION SEA SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| PLY UNION LIMITED | Private company limited by shares | Live |
| OCEAN UNION INTERNATIONAL TRADING HK LIMITED | Private company limited by shares | Live |
| LIANYUNGANG UNION INTERNATIONAL FREIGHT CO., LIMITED | Private company limited by shares | Live |
| HK XINGYUAN UNION LIMITED | Private company limited by shares | Live |
| HK GLORY UNION MEDICAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| HAPPINESS UNION GROUP LIMITED | Private company limited by shares | Live |
| ABLE UNION CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| OCEAN UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| China Internet Finance Union Limited | Private company limited by shares | Live |
| GENIUS UNION LIMITED | Private company limited by shares | Live |
| GREATER UNION GROUP CO LIMITED | Private company limited by shares | Live |
| UNION ACE INC LIMITED | Private company limited by shares | Live |
| HK Wanshang Union Holding Group Limited | Private company limited by shares | Live |
| CHINA ASIA UNION INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| Union Air Service Limited | Private company limited by shares | Live |
| HONEST UNION PHARMACEUTICAL CO., LIMITED | Private company limited by shares | Live |
| UNION GAIN INTERNATIONAL HOLDING CO., LIMITED | Private company limited by shares | Live |
| INTERNATIONAL CHILDREN'S CULTURAL INDUSTRIAL UNION LIMITED | Private company limited by shares | Dissolved |
| WORLD CHINESE ENTREPRENEURS UNION LIMITED | Private company limited by shares | Live |
| Tanzanian Trade and Industrial Union Limited | Private company limited by shares | Live |
| HEART UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| CHINA NEW 3 BOARD LISTED UNION LIMITED | Private company limited by shares | Live |
| HONG KONG UNION ART PROPAGATION CO. LIMITED | Private company limited by shares | Live |
| FINE UNION INC LIMITED | Private company limited by shares | Live |
| UNION BAY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH LOGISTICS LIMITED | Private company limited by shares | Live |
| UNION LINKER INVESTMENT LIMITED | Private company limited by shares | Live |
| SUCCESS UNION CORPORATION LIMITED | Private company limited by shares | Live |
| WISE UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| FOCUS UNION TRADING COMPANY LIMITED | Private company limited by shares | Live |
| Union Assistance (HK) Limited | Private company limited by shares | Live |
| International Copyright Union Co., Limited | Private company limited by shares | Live |