| PACIFIC UNION HONG KONG ENTERPRISES LIMITED | Private company limited by shares | Live |
| JOYFUL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION RANK INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Alliance Universal Limited | Private company limited by shares | Dissolved |
| UNION FUND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| THOUSANDS UNION LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL YOGA UNION (HONGKONG) LIMITED | Private company limited by shares | Live |
| UNOGOLD (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNIWAY ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| UNITED ASIA PACIFIC FINANCE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL MACHINERY AND ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| UNION SOURCE LIMITED | Private company limited by shares | Dissolved |
| AAROPRO UNIVERSE LIMITED | Private company limited by shares | Live |
| UNION COMPONENTS (HK) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION WIDE (H.K.) LIMITED | Private company limited by shares | Live |
| UNIOCEAN LIMITED | Private company limited by shares | Dissolved |
| SOUTH UNION INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| FAME UNIVERSAL ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| UNIFOR MACHINERY HOLDING LIMITED | Private company limited by shares | Live |
| USA UNITED INTERNATIONAL ENTERPRISES SHARES HOLDING GROUP (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNION POWER (CHINA) LIMITED | Private company limited by shares | Live |
| EDUCATION OUTFIT UNION CHINA LIMITED | Private company limited by shares | Dissolved |
| UNION MERCHANT-BELIEF HONG KONG HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNITED STATES CLAWERS INT., HOLDING GROUP CO. LIMITED | Private company limited by shares | Live |
| UniGroup Worldwide-Hong Kong Limited | Private company limited by shares | Live |
| CHINA UNION (HK) INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HK UNIBRIGHT LIMITED | Private company limited by shares | Dissolved |
| TOP UNION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNIQUE FABRICATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL GROUP INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DYNAMIC UNION LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL BUSINESS (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNION TIME (H.K.) LIMITED | Private company limited by shares | Live |
| UNION FINANCE (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| UNION MAX FAR EAST LIMITED | Private company limited by shares | Dissolved |
| UNIVERSITY OF NORTHERN VIRGINIA (ASIA) LIMITED | Private company limited by shares | Live |
| UNISON I&E CO., LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL WINGS LIMITED | Private company limited by shares | Dissolved |
| UNST LIMITED | Private company limited by shares | Dissolved |
| UNITED INCORPORATIONS LIMITED | Private company limited by shares | Live |
| UNITY (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNI-GENIUS INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ORIENT UNION LIMITED | Private company limited by shares | Live |
| TOP UNITY LIMITED | Private company limited by shares | Live |
| UNITY LAND LIMITED | Private company limited by shares | Live |
| UNION SKY LIMITED | Private company limited by shares | Dissolved |
| NEW UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| Unique Concepts Company Limited | Private company limited by shares | Live |
| UNION WORLD INC. LIMITED | Private company limited by shares | Live |
| INTELLIGENT UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| WISE UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION EAGLE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| DEAN'S UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNITED PACIFIC (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNIFORD LIMITED | Private company limited by shares | Live |
| UNION BEST (CHINA) LIMITED | Private company limited by shares | Dissolved |
| BRIGHT UNION (HK) LIMITED | Private company limited by shares | Dissolved |
| RICH UNION ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION GLOBE INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION RICH INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNIXI LIMITED | Private company limited by shares | Live |
| BEST UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION POWER WORLDWIDE LIMITED | Private company limited by shares | Live |
| MEGA UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION TRAVEL LIMITED | Private company limited by shares | Live |
| CNO UNITED SHIPPING LIMITED | Private company limited by shares | Live |
| UNION ART HOLDINGS LIMITED | Private company limited by shares | Live |
| CHINA UNITED INSURANCE BROKERS LIMITED | Private company limited by shares | Live |
| UNION LAND LIMITED | Private company limited by shares | Dissolved |
| WISE UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| SAFER UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION COSCO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HONGKONG UNION CENTURY GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION FAIR INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| UNITED FORRE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MEGA UNION ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| UNION FORTRESS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| EVER UNION FURNITURE CO., LIMITED | Private company limited by shares | Live |
| RAY UNITED LIMITED | Private company limited by shares | Dissolved |
| UNITED GOLD LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT CHINA LIMITED | Private company limited by shares | Live |
| UNION PROFIT ASIA LIMITED | Private company limited by shares | Dissolved |
| FAR UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNITED FAME SHIPPING LIMITED | Private company limited by shares | Live |
| UNION WORLD INVESTMENT (GROUP) LIMITED | Private company limited by shares | Dissolved |
| UNION STAR LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| UNITED SOLUTION CO., LIMITED | Private company limited by shares | Dissolved |
| UNION BEARINGS CO., LIMITED | Private company limited by shares | Dissolved |
| TOPSTAR INTERNATIONAL UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION GLORY TRADING LIMITED | Private company limited by shares | Live |
| UNION PROGRESS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI NEW UNION HOME COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SPEED EXPRESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED GRACE LIMITED | Private company limited by shares | Live |
| GRAND UNION WORLDWIDE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNIT CHOICE LIMITED | Private company limited by shares | Dissolved |
| UNIGOOD LIMITED | Private company limited by shares | Dissolved |
| UNION UNIVERSAL LIMITED | Private company limited by shares | Live |