| UNION HONG LIMITED | Private company limited by shares | Dissolved |
| UNIDIS INVESTMENTS LIMITED | Private company limited by shares | Live |
| AMERICAN VERMONT UNIVERSITY LIMITED | Private company limited by shares | Dissolved |
| WAVE UNION LIMITED | Private company limited by shares | Live |
| WORLD UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION PACIFIC INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNITED BRAVERY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNI-RICH LIMITED | Private company limited by shares | Live |
| UNION RICHLY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIQUE YOU LIMITED | Private company limited by shares | Dissolved |
| USA UNION HOLDING GROUP CO., LIMITED | Private company limited by shares | Live |
| EVER UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION WIN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| NEW EAST UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNITED EASY LIMITED | Private company limited by shares | Live |
| UNION WAY LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPER (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION KEEN LIMITED | Private company limited by shares | Dissolved |
| UNITED SQUARE LIMITED | Private company limited by shares | Live |
| UNITIZE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL & DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNICESS Studio Limited | Private company limited by shares | Dissolved |
| FASHION HOUSE UNDERWEAR (INT'L) CHAIN GROUP LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION POWER LIMITED | Private company limited by shares | Dissolved |
| HONGKONG BEST UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL VITALITY LIMITED | Private company limited by shares | Dissolved |
| UNION SKY WINE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMART UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION RICH INVESTMENT (GROUP) LIMITED | Private company limited by shares | Dissolved |
| U-Top Universal Co., Limited | Private company limited by shares | Live |
| UNION DIGITAL EXPORT CO., LIMITED | Private company limited by shares | Live |
| UNION KING DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNIXO INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| Eastech & Unison Controls Engineering Co., Limited | Private company limited by shares | Live |
| SMART UNIRICH LIMITED | Private company limited by shares | Live |
| SMARTWIN UNION LIMITED | Private company limited by shares | Live |
| ASIA-EUROPE UNION SUCCESS TRADING LIMITED | Private company limited by shares | Live |
| UNITRADE CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| UNION BEST WEALTH CREATION LIMITED | Private company limited by shares | Live |
| NEW UNITY ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION DUTY-FREE LIMITED | Private company limited by shares | Live |
| UNION CAMERA HONG KONG LIMITED | Private company limited by shares | Live |
| UNION COMPUTER SUPPLIES LIMITED | Private company limited by shares | Live |
| HAPPY UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION LINK INTERNATIONAL INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| FIRST UNION GLOBAL LIMITED | Private company limited by shares | Dissolved |
| UNION LOGISTIC SERVICES LIMITED | Private company limited by shares | Live |
| NINE UNITED LIMITED | Private company limited by shares | Live |
| INSTRUMENT UNION (HONG KONG) CO. LIMITED | Private company limited by shares | Live |
| Universal Exports Holding Co., Limited | Private company limited by shares | Dissolved |
| UNIGLOBE REMOVALS LIMITED | Private company limited by shares | Live |
| UNION NATION HONG KONG DEVELOPMENT LIMITED | Private company limited by shares | Live |
| WING UNITED CPA LIMITED | Private company limited by shares | Live |
| UNITED-WIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNOTRON APAC LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNIXRAIN INDUSTRY LIMITED | Private company limited by shares | Live |
| ADVANCE UNION GLOBAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE MANAGEMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION (INTERNATIONAL) TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| CHINA GREEN INK UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNITO TEXTILES COMPANY LIMITED | Private company limited by shares | Live |
| China Universities' Alliance Limited | Private company limited by shares | Dissolved |
| Figure United Limited | Private company limited by shares | Live |
| UniCaption Consulting Company Limited | Private company limited by shares | Live |
| BUSINESS UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION LUCK LIMITED | Private company limited by shares | Live |
| UNI-STATE LIMITED | Private company limited by shares | Live |
| UNION WAY CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| UNIVERSE CONSULTANTS LIMITED | Private company limited by shares | Live |
| SHENZHEN UNISSON DEVELOPMENT TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Well United Resources Limited | Private company limited by shares | Live |
| WORLD OVERSEAS CHINESE UNION LIMITED | Private company limited by shares | Live |
| UNI-SOLUTION LIMITED | Private company limited by shares | Dissolved |
| CHINA WENZHOU BUSINESS UNION GENERAL LIMITED | Private company limited by shares | Dissolved |
| CHINA ZHEJIANG BUSINESS UNION GENERAL LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION BRIGHT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION BILLION LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION PROFIT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG MEGA UNION LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION TARGET LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL OFFSHORE CO., LIMITED | Private company limited by shares | Dissolved |
| UNDERWRITE LABORTORIAL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Net Union Advertising Limited | Private company limited by shares | Live |
| MTS UNION CORPORATION (HONGKONG) LIMITED | Private company limited by shares | Live |
| UNITRADE LIMITED | Private company limited by shares | Live |
| CHINA ORGANIC AGRICULTURE UNION LIMITED | Private company limited by shares | Live |
| UNIVERSE WEALTH CREATION LIMITED | Private company limited by shares | Live |
| KING UNION DEVELOPING (HK) LIMITED | Private company limited by shares | Dissolved |
| SEIBAO UNIVERSITY GREAT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| WIN UNION INTERNATIONAL HOTEL MANAGEMENT (HK) CO. LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SUN LIMITED | Private company limited by shares | Live |
| UNIVERSAL SUN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT CREATION LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION VAN COMMUNICATION CO., LIMITED | Private company limited by shares | Dissolved |
| ROAD UNION INVESTMENTS (HK) LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION CITY INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION TALENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Union Application Limited | Private company limited by shares | Live |
| UNION PHARMACEUTICAL R&D CO. LIMITED | Private company limited by shares | Live |