| UNIVERSE INDUSTRIAL (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| UNION SIGNAL TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| TOP UNION HONG KONG GROUP LIMITED | Private company limited by shares | Live |
| Topken Cultural Undertaking Limited | Private company limited by shares | Dissolved |
| KEEN UNION COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| HK INTERNATIONAL WUSHU UNION LIMITED | Private company limited by shares | Dissolved |
| USA JIAJI INT'L UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION MACHINERY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| UNION BUSINESS INVESTMENT LIMITED | Private company limited by shares | Live |
| CHINA ENTERPRISE TECHNOLOGY UNION CONSULATION LIMITED | Private company limited by shares | Live |
| UNITED RICH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| BANNER UNION APPLIED OPTICS (HK) LIMITED | Private company limited by shares | Live |
| UNITED MAX INVESTMENT LIMITED | Private company limited by shares | Live |
| WIN UNION LIMITED | Private company limited by shares | Live |
| UNION ACE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| RICH UNION INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| CHINA WINE IMPORTERS UNION LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNION TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNIVERSE ZR MACHINERY ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL (OVERSEAS) PTE. LIMITED | Private company limited by shares | Live |
| UNIT LIMITED | Private company limited by shares | Live |
| UNIVERS TRADING LIMITED | Private company limited by shares | Live |
| Uncle MK Limited | Private company limited by shares | Live |
| UNCLE 6 KITCHEN LIMITED | Private company limited by shares | Dissolved |
| UNION WELL CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| HONGKONG UNION CHUNG INDL LIMITED | Private company limited by shares | Live |
| HONGKONG UNION HEYDAY INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| UNITED STAR HL LIMITED | Private company limited by shares | Dissolved |
| HK GLOBAL UNION INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| United Capital Asia Pacific Limited | Private company limited by shares | Live |
| UNITED FOODSERVICE GROUP ASIA LIMITED | Private company limited by shares | Dissolved |
| JOYFUL UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WELL UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UnitECO Limited | Private company limited by shares | Live |
| UNISTAR MUNDO LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI UNICOMMOTORS (HK) HOLDINGS LIMITED | Private company limited by shares | Live |
| UNI-SURPLUS LIMITED | Private company limited by shares | Dissolved |
| UNIQUEEN CO., LIMITED | Private company limited by shares | Live |
| UNIK TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| HK UNITED COMPASS LIMITED | Private company limited by shares | Live |
| UNION MANUFACTURING CORPORATION LIMITED | Private company limited by shares | Live |
| UNIVERSAL UNITED TRADE EXPORT LIMITED | Private company limited by shares | Live |
| YIWU UNION GROUP IMPORT & EXPORT COMPANY LIMITED | Private company limited by shares | Live |
| UNION WELL INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNION ASIA PACIFIC INVESTMENT LIMITED | Private company limited by shares | Live |
| METAL UNIVERSE GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION WIN INTERNATIONAL INDUSTRY LIMITED | Private company limited by shares | Live |
| WV United Properties Limited | Private company limited by shares | Dissolved |
| UNION BOND PIGMENTS HK LIMITED | Private company limited by shares | Live |
| UNIGRASS LIMITED | Private company limited by shares | Dissolved |
| HK UNION HUNDRED BIOLOGY TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UNIQUE JEWELLERY LIMITED | Private company limited by shares | Dissolved |
| CHARMING UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNLIMITED ASIA LIMITED | Private company limited by shares | Dissolved |
| CHAMPION UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| PEIL (UNION) GROUP LIMITED | Private company limited by shares | Live |
| FIRST UNION INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIVEX (HK) COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL JERSEYS MANUFACTURER LIMITED | Private company limited by shares | Dissolved |
| XINLI UNIVERSAL TRADING LIMITED | Private company limited by shares | Dissolved |
| RISING UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| United Paragon Limited | Private company limited by shares | Live |
| ITALY SOWRSHAR (UNIVERSAL) LIMITED | Private company limited by shares | Live |
| WORLD CULTURE ART UNION ASSOCIATION LIMITED | Private company limited by shares | Live |
| HONG KONG SINO UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| STAR UNION (HK) GROUP CO., LIMITED | Private company limited by shares | Live |
| United-Cities Holdings Limited | Private company limited by shares | Dissolved |
| UNIBO LIMITED | Private company limited by shares | Live |
| UNION ABLE LIMITED | Private company limited by shares | Dissolved |
| Unipro Capital Investment Limited | Private company limited by shares | Dissolved |
| UNION FASHION INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| BEST UNION (CHINA) LIMITED | Private company limited by shares | Live |
| UNION TACT (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNI-TOP AIRLINES COMPANY LIMITED | Private company limited by shares | Live |
| Universal Gold Trade Centre Limited | Private company limited by shares | Dissolved |
| UNI-PLAN LIMITED | Private company limited by shares | Live |
| UNIQUE LEGEND LIMITED | Private company limited by shares | Live |
| GLORY UNIVERSE LIMITED | Private company limited by shares | Live |
| WORLD UNION FUND LIMITED | Private company limited by shares | Dissolved |
| TRIPLE UNION CONSULTING CO., LIMITED | Private company limited by shares | Dissolved |
| UNUSUALWAY ELECTRONIC TECH CO., LIMITED | Private company limited by shares | Live |
| UNION WORLD AISA TRADING LIMITED | Private company limited by shares | Dissolved |
| TOP UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION HONG KONG DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HONG KONG YAMANNI UNDERWEAR (INTERNATIONAL) CO., LIMITED | Private company limited by shares | Dissolved |
| BRITISH SAINTLY UNION LIMITED | Private company limited by shares | Live |
| 70s Babyware N underware Trading Limited | Private company limited by shares | Dissolved |
| Universal Properties Agency Limited | Private company limited by shares | Live |
| International Returnees Union Limited | Private company limited by shares | Live |
| UNIVERSAL PULP FEDERATION (HEADQUARTERS) LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT ASIA GROUP LIMITED | Private company limited by shares | Live Commenced dormancy on 05-Feb-2016 |
| ORIENT UNLIMITED LIMITED | Private company limited by shares | Live |
| CHINA EMC UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL BEST LIMITED | Private company limited by shares | Live |
| HAPPY UNION (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNISAIL SEAFOOD CO., LIMITED | Private company limited by shares | Live |
| UNION LINKER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIQUE CAPITAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNI-POP TECHNOLOGY CO. LIMITED | Private company limited by shares | Live |