| ART UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GLORIOUS UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION FINANCE LIMITED | Private company limited by shares | Live |
| CHINA FINANCE CAPITAL UNION GROUP LIMITED | Private company limited by shares | Live |
| RELIANCE UNITED LIMITED | Private company limited by shares | Live |
| SUN'S UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PARTNER INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SMART SOLUTION UNITED LIMITED | Private company limited by shares | Dissolved |
| UNION LINKER INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| ETERNAL UNION LIMITED | Private company limited by shares | Live |
| UNITED LINK CPA LIMITED | Private company limited by shares | Live |
| UNITED WELL CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNITED INTERNATIONAL GLOBAL CHAIN SUPERMARKET LOVE GROUP LIMITED | Private company limited by shares | Dissolved |
| STAR SKY UNION LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION GROUP CO., LIMITED | Private company limited by shares | Live |
| UNION BORDER TRADE LIMITED | Private company limited by shares | Live |
| UNIQUESEC LIMITED | Private company limited by shares | Live |
| MW Universal Limited | Private company limited by shares | Dissolved |
| FAST BASE UNION (CHINA) LIMITED | Private company limited by shares | Live |
| SMART UNION (H.K.) MOTORS COMPANY LIMITED | Private company limited by shares | Live |
| Beauty Universal Investment Limited | Private company limited by shares | Live |
| UNION INNOVATION TRADING COMPANY LIMITED | Private company limited by shares | Live |
| OILRICH UNITED CO., LIMITED | Private company limited by shares | Live |
| Paz & Union International Company Limited | Private company limited by shares | Live |
| UNION KEY TRADING LIMITED | Private company limited by shares | Dissolved |
| SILVER UNIVERSE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SILVER UNIVERSE INVESTMENTS LIMITED | Private company limited by shares | Live |
| MH UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ENGINEERING & CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| UNION WAY ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNIONTEL TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| LEADING UNION LIMITED | Private company limited by shares | Live |
| UNION GENESIS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| United Inspection Service Limited | Private company limited by shares | Live |
| TIHOM UNION CO., LIMITED | Private company limited by shares | Dissolved |
| Universal Contractors (Hong Kong) Limited | Private company limited by shares | Live |
| UnlockBase Limited | Private company limited by shares | Dissolved |
| WIN UNIVERSE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIFIED GROUP (CHINA) INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| WORLD PLUM FLOWER UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNIREWA (CHINA) LIMITED | Private company limited by shares | Live |
| UNITEDKINGDOM LANGTING IMPERIALFAMILY HEALTH MEDICINE BEAUTY LIMITED | Private company limited by shares | Live |
| Unitea Company Limited | Private company limited by shares | Live |
| UNITED PAYMENT SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| UNITED ABLE LIMITED | Private company limited by shares | Live |
| UNION TECHNOLOGY (HK) TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAX UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| Unified Engineering Service Limited | Private company limited by shares | Live |
| MARKET UNION (HK) CO., LIMITED | Private company limited by shares | Live |
| China Int'l Commercial Union Group Limited | Private company limited by shares | Dissolved |
| UNIVERSAL TECHNOLOGY NETWORK LIMITED | Private company limited by shares | Live |
| GREATEST UNION LIMITED | Private company limited by shares | Live |
| UNIVERSE HOLDING INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| DB UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNICLEAN TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNIONCLEAR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION BUILDING MATERIALS LIMITED | Private company limited by shares | Live |
| OCEAN UNION HONG KONG DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| QINGDAO SEAWINNER UNION MACHINERY CO., LIMITED | Private company limited by shares | Dissolved |
| Berkley Underwritings Limited | Private company limited by shares | Dissolved |
| WORLDWISE UNIVERSAL LIMITED | Private company limited by shares | Live |
| BUILDER UNION GROUP CO., LIMITED | Private company limited by shares | Live |
| BARMARK (UN) LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| HUACHUANG UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNIVERSAL TRAVEL COMPANY LIMITED | Private company limited by shares | Live |
| UP UNION LIMITED | Private company limited by shares | Dissolved |
| China United Tire Limited | Private company limited by shares | Live |
| CHINA UNIKING CO., LIMITED | Private company limited by shares | Dissolved |
| CHINA FAST PRINTING UNION LIMITED | Private company limited by shares | Live |
| UNISON ENTERPRISE LIMITED | Private company limited by shares | Live |
| J&R UNION STEEL CO., LIMITED | Private company limited by shares | Dissolved |
| SOUTHERN UNIVERSAL CO. LIMITED | Private company limited by shares | Dissolved |
| UNION OIL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WIDE GROUP LIMITED | Private company limited by shares | Dissolved |
| NEW UNION CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| HONG KONG RICH UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| CHINA OTC UNITED LIMITED | Private company limited by shares | Dissolved |
| MANYWELL UNITED LIMITED | Private company limited by shares | Live |
| LOYAL UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNI-EDIT CO., LIMITED | Private company limited by shares | Live |
| UNION LIFE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GLOBAL VILLAGE UNION LIMITED | Private company limited by shares | Live |
| UNION LEGAL LIMITED | Private company limited by shares | Live |
| UNICO UNIVERSAL CO., LIMITED | Private company limited by shares | Live |
| Ray-Star Universal Solutions Limited | Private company limited by shares | Live |
| Really Uniform & Fashion Company Limited | Private company limited by shares | Live |
| UNION INDUSTRIAL CONSULTING CO., LIMITED | Private company limited by shares | Live |
| RISE UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| ZIWEI UNIVERSE HK LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT MEDICINE LIMITED | Private company limited by shares | Live |
| ZHUO YUE UNIVERSAL INVESTMENT LIMITED | Private company limited by shares | Live |
| Barton Universal Limited | Private company limited by shares | Live |
| Dep Universal Limited | Private company limited by shares | Live |
| RESOURCE UNITED LIMITED | Private company limited by shares | Live |
| FORE UNION LIMITED | Private company limited by shares | Dissolved |
| UNITIX LIMITED | Private company limited by shares | Dissolved |
| BROTHER UNION FURNITURE & INDUSTRY LIMITED | Private company limited by shares | Live |
| TPK Universal Solutions Limited | Private company limited by shares | Live |