| GOLDEN UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNION PROMISE LIMITED | Private company limited by shares | Dissolved |
| MASTER UNION NETWORK (H.K.) LIMITED | Private company limited by shares | Live |
| TOP UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| GLOBAL UNION LOGISTICS CO., LIMITED | Private company limited by shares | Live |
| UNION SCORE INVESTMENTS LIMITED | Private company limited by shares | Live |
| CHINA FURNITURE INDUSTRIAL BRAND UNION LIMITED | Private company limited by shares | Live |
| UNION WISE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GLORY FOOTWEAR CO., LIMITED | Private company limited by shares | Live |
| Forde Union International Trading Co., Limited | Private company limited by shares | Live |
| TOTAL UNION LIMITED | Private company limited by shares | Live |
| UNION RICH INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION STAR INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| WEALTH UNION INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Weida Union Group (Hongkong) Co., Limited | Private company limited by shares | Dissolved |
| UNION BOND ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| WISDOM UNION ENTERPRISE LIMITED | Private company limited by shares | Live |
| Creation Union Development Limited | Private company limited by shares | Live |
| UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| GOLDEN UNION INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| GOLDEN UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION LEADER INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CROWN UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| NOBLE UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION WEALTH INVESTMENTS LIMITED | Private company limited by shares | Live |
| WORLD UNION (ASIA) LIMITED | Private company limited by shares | Live |
| WORLD UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| ISRAEL HAIFA UNION MINING LIMITED | Private company limited by shares | Live |
| MASTER UNION ENTERPRISE LIMITED | Private company limited by shares | Live |
| HONG KONG GREAT UNION LIMITED | Private company limited by shares | Live |
| UNION POWER & LIGHTING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO CHINESE UNION (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| UNION GRAND INC LIMITED | Private company limited by shares | Live |
| UNION STEP DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION (HONG KONG) CERTIFICATION SERVICES LIMITED | Private company limited by shares | Live |
| UNION SERVICES LIMITED | Private company limited by shares | Live |
| INTERNATIONAL ROYAL UNION LIMITED | Private company limited by shares | Live |
| GOLDEN UNION INTERNATIONAL DEVELOP LIMITED | Private company limited by shares | Live |
| Union Catering and Wine Services Limited | Private company limited by shares | Live |
| Union Trading Corporation Limited | Private company limited by shares | Live |
| UNION EUK LIMITED | Private company limited by shares | Live |
| GOAL UNION AUTO BODY ENGINEERING LIMITED | Private company limited by shares | Live |
| HK SPECIAL UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Gold Union Group (HK) Limited | Private company limited by shares | Dissolved |
| KING UNION TRADING LIMITED | Private company limited by shares | Live |
| TREASURE UNION TRADING LIMITED | Private company limited by shares | Live |
| EAST UNION TRADE LIMITED | Private company limited by shares | Live |
| UNION SOURCE ASIA PACIFIC COMPANY LIMITED | Private company limited by shares | Live |
| FUTURE UNION CO., LIMITED | Private company limited by shares | Live |
| T&S UNION INVESTMENT CORP LIMITED | Private company limited by shares | Live |
| UNION MATERIAL SERVICE CO., LIMITED | Private company limited by shares | Live |
| World Martial Arts Union Limited | Private company limited by shares | Live |
| GRAND UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| WEALTHY UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| UNION GROUP ASIA LIMITED | Private company limited by shares | Live |
| UNION PROJECT MANAGEMENT LIMITED | Private company limited by shares | Live |
| FIRST UNION TOURISM INVESTMENT LIMITED | Private company limited by shares | Live |
| TARGET UNION (ON TOP) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION GRACE (OVERSEAS) MANAGEMENT LIMITED | Private company limited by shares | Live |
| Hong Kong Union of Employment Agencies Limited | Company limited by guarantee | Live |
| LK UNION HONG KONG LIMITED | Private company limited by shares | Live |
| GOOD UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION HONEST ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| ALLIANCE UNION TRADING LIMITED | Private company limited by shares | Live |
| LUCKY UNION INC. LIMITED | Private company limited by shares | Live |
| UNION TURBO LIMITED | Private company limited by shares | Live |
| CHINA UNION ENERGY INVESTMENT LIMITED | Private company limited by shares | Live |
| GOOD UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Uniontel Communications Limited | Private company limited by shares | Live |
| UNION TIGER LIMITED | Private company limited by shares | Live |
| Union Power (H.K) Energy Holdings Limited | Private company limited by shares | Live |
| Pacific Union IT Co., Limited | Private company limited by shares | Dissolved |
| MAJOR UNION LIMITED | Private company limited by shares | Live |
| UNION STAR CARGO LIMITED | Private company limited by shares | Live |
| UNION VIEW INT'L GROUP LIMITED | Private company limited by shares | Live |
| UNION GOAL (H.K.) LIMITED | Private company limited by shares | Live |
| PIONEER CHINA UNION LIMITED | Private company limited by shares | Live |
| UNION PLUS LIMITED | Private company limited by shares | Live |
| LEGEND UNION FAR EAST LIMITED | Private company limited by shares | Live |
| BROTHERS UNION TRADING LIMITED | Private company limited by shares | Live |
| UNION (C-HK) LIMITED | Private company limited by shares | Live |
| Nation Union Construction Machinery Co., Limited | Private company limited by shares | Live |
| CHINA FREE TRADE UNION CO., LIMITED | Private company limited by shares | Dissolved |
| Union Import & Export Co., Limited | Private company limited by shares | Live |
| Hong Kong Ever Union Container Company Limited | Private company limited by shares | Live |
| UNION ONE (HK) INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| Sincoza Union Machinery Co., Limited | Private company limited by shares | Live |
| Union Marine Service & Consultancy Co., Limited | Private company limited by shares | Live |
| UNION SHOPPING GUIDE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO SHAOSHANG UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| METRO UNION CORPORATION LIMITED | Private company limited by shares | Live |
| Rui Lin International Union Investment Holdings Group Limited | Private company limited by shares | Live |
| HK Union Medical Service Co., Limited | Private company limited by shares | Dissolved |
| ASIAN UNION TECHNOLOGIES CO., LIMITED | Private company limited by shares | Live |
| CHINA FINANCIER UNION LIMITED | Private company limited by shares | Live |
| CHINA UNION ONE CO., LIMITED | Private company limited by shares | Live |
| UNION OCEAN INT'L MARINE LIMITED | Private company limited by shares | Live |
| WORLD INVESTMENT UNION LIMITED | Private company limited by shares | Live |
| HENSON UNION TECH LIMITED | Private company limited by shares | Live |
| UNION DELTA CO., LIMITED | Private company limited by shares | Live |