| UNION TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION AWARDS DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GRAND UNION (H.K.) ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| UNITED KNITTING MFG. (CAMBODIA) CO. LIMITED -THE- | Private company limited by shares | Dissolved |
| LUCKY UNION (PACIFIC) LIMITED | Private company limited by shares | Dissolved |
| WEALTHY UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION ELITE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION ENGINEERING DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TEXTILE (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION WHARF TRADING LIMITED | Private company limited by shares | Dissolved |
| CONCORD UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNITED PLAN LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE PROPERTY CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL REALTY AGENCY LIMITED | Private company limited by shares | Dissolved |
| UNION KING SHIPPING LIMITED | Private company limited by shares | Dissolved |
| BEST UNION SHIPPING LIMITED | Private company limited by shares | Dissolved |
| WANG FU (UNION) CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| NOBLE UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL UNION RESOURCES LIMITED | Private company limited by shares | Live |
| UNION TECH CIRCUIT LIMITED | Private company limited by shares | Live |
| SOUTHERN UNITED ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION TELECOM LIMITED | Private company limited by shares | Dissolved |
| RICH UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION FUTURE LIMITED | Private company limited by shares | Live |
| UNIVERSAL SUPREME LIMITED | Private company limited by shares | Dissolved |
| UNISON OVERSEAS LIMITED | Private company limited by shares | Dissolved |
| UNION STAR INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIVERSE ARTISTE MANAGEMENT LIMITED | Private company limited by shares | Live |
| KIND UNION LIMITED | Private company limited by shares | Dissolved |
| UNION HARVEST TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION HONOUR TRADING LIMITED | Private company limited by shares | Dissolved |
| EAST UNISON LIMITED | Private company limited by shares | Live |
| THREE UNION (INTERNATIONAL) ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION COSMOS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GRANDWELL UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNICHANNELS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION HARMONY LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION INVESTMENT CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| UNILANE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL HEAD LIMITED | Private company limited by shares | Live |
| UNITED BUSINESS LIMITED | Private company limited by shares | Dissolved |
| UNION TRINITY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL PREMIER LIMITED | Private company limited by shares | Live |
| UNIVERSE TRANSPORTATION CO. LIMITED | Private company limited by shares | Dissolved |
| UNION PLASTIC & ELECTRONIC PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| UNITY ADVERTISING & ENGINEERING LIMITED | Private company limited by shares | Live |
| STABLE UNISON COMPANY LIMITED | Private company limited by shares | Live |
| UNION VAST INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION FIDELITY LIMITED | Private company limited by shares | Dissolved |
| UNION FORTRESS LIMITED | Private company limited by shares | Dissolved |
| UNION THEME LIMITED | Private company limited by shares | Live |
| UNION ETERNITY LIMITED | Private company limited by shares | Dissolved |
| UNION EXCHANGE LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE LIMITED | Private company limited by shares | Dissolved |
| UNION NICE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION MEDIA DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA UNITED PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNIONEX TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| TIME UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| HOPE WIN UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNITY GLORY INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION VENUS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION SENSE TRADING LIMITED | Private company limited by shares | Dissolved |
| GOOD UNIVERSE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| GOOD UNIVERSE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION CAMERA ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNITED INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNITED PHOTO-VIDEO LIMITED | Private company limited by shares | Live |
| UNION VENUS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL UNITY LIMITED | Private company limited by shares | Live |
| BEST UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNITY GRAND LIMITED | Private company limited by shares | Live |
| UNION GLORY INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITED WRINKLE FREE PROCESSING LIMITED | Private company limited by shares | Live |
| L & N UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| HARBOUR UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION WIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HARVEST INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION WEAL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION WEAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNITED WELL (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTH TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTH INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNITED CHOICE LIMITED | Private company limited by shares | Live |
| STAR UNISON HOLDINGS COMPANY LIMITED | Private company limited by shares | Live |
| SMART INTERNATIONAL UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNITED MOTORS LIMITED | Private company limited by shares | Live |
| UNIQUE SMART ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNIQUE MILLION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIQUE SMART INVESTMENTS LIMITED | Private company limited by shares | Live |
| NEW UNITED INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| BIG UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| MODERN UNISON LIMITED | Private company limited by shares | Dissolved |
| UNION WIN MOTOR SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SONG UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| METRO UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNITOP LIMITED | Private company limited by shares | Live |
| UNION CITY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |