| UNION PAGE PERIODICAL OFFICE LIMITED | Private company limited by shares | Live |
| Biosafety Union Corporation Limited | Private company limited by shares | Live |
| Union Media (HK) Limited | Private company limited by shares | Live |
| Bar Union Limited | Private company limited by shares | Live |
| Pacific Union Global Limited | Private company limited by shares | Live |
| Until Blank Limited | Private company limited by shares | Live |
| FAITHFUL UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SUPER UNION DIGITAL CO., LIMITED | Private company limited by shares | Live |
| UNIQUE ENTERPRISE HK COMPANY LIMITED | Private company limited by shares | Live |
| MAN UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Go Aboard United Limited | Private company limited by shares | Live |
| TOP UNITED COMMERCIAL LIMITED | Private company limited by shares | Live |
| SIGHT UNTIED LIGHTING LIMITED | Private company limited by shares | Live |
| CPB United CHN Asset Shares Limited | Private company limited by shares | Live |
| Titan Universal Limited | Private company limited by shares | Live |
| SUCCESS UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNITED SEA INVESTMENTS LIMITED | Private company limited by shares | Live |
| Union Professional Advisory Limited | Private company limited by shares | Live |
| Sports Union Company Limited | Private company limited by shares | Live |
| Unisense Limited | Private company limited by shares | Live |
| Untouched United Limited | Private company limited by shares | Live |
| Union Remittance Limited | Private company limited by shares | Live |
| Universal Magnetic Limited | Private company limited by shares | Live |
| ARTISTIC VISION UNIVERSE COMPANY LIMITED | Private company limited by shares | Live |
| Commercial Union (HK) Co., Limited | Private company limited by shares | Live |
| Unified Finance Limited | Private company limited by shares | Live |
| UNION MANAGEMENT HK LIMITED | Private company limited by shares | Live |
| ONE UNIVERSE CONSULTING GROUP LIMITED | Private company limited by shares | Live |
| Unisail Limited | Private company limited by shares | Live |
| UNION ENGINEERING CONSTRUCTION LIMITED | Private company limited by shares | Live |
| SMART UNIVERSE LIMITED | Private company limited by shares | Live |
| ASSOCIATED UNION (HK) LIMITED | Private company limited by shares | Live |
| THERMAL UNION LIMITED | Private company limited by shares | Live |
| UNITECH TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Matrix Union Limited | Private company limited by shares | Live |
| Uniqueoption Limited | Private company limited by shares | Live |
| DAY UNUS LIMITED | Private company limited by shares | Live |
| UNION GLORY INT'L SHIPPING LIMITED | Private company limited by shares | Live |
| VIC UNION LIMITED | Private company limited by shares | Live |
| G UNISON CO., LIMITED | Private company limited by shares | Live |
| CHINA ARABIAN GALLON CAPITAL UNITED E.C.S.INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| Ever Union Group Company Limited | Private company limited by shares | Live |
| HONG KONG UNION MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| UNIVERSAL VEHICLE LIMITED | Private company limited by shares | Live |
| UNITED DIGITAL HEALTH LIMITED | Private company limited by shares | Live |
| Zhongtai Intelligent Union International Limited | Private company limited by shares | Live |
| Love Union Limited | Private company limited by shares | Live |
| CITY UNION TRADING LIMITED | Private company limited by shares | Live |
| SHENZHEN UNI-MEDICA TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UNI-SUCCESS ENGINEERING LIMITED | Private company limited by shares | Live |
| UNITY SALON LIMITED | Private company limited by shares | Live |
| UNION WELL TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| JOY UNITED GROUP HOLDING LIMITED | Private company limited by shares | Live |
| Unorthodox C. Limited | Private company limited by shares | Live |
| EVERBEST UNION LIMITED | Private company limited by shares | Live |
| Univerads Technology Limited | Private company limited by shares | Live |
| UNIMPEDED LIMITED | Private company limited by shares | Live |
| United States DRYDENE Petrol-Chemical Industry Group Co., Limited | Private company limited by shares | Live |
| CHINA UCID UNITED LIMITED | Private company limited by shares | Live |
| Hope Federation Union Limited | Company limited by guarantee | Live |
| UNION FIVE COMPANY LIMITED | Private company limited by shares | Live |
| UNIWARE DIGITAL LIMITED | Private company limited by shares | Live |
| MAGIC UNION (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| REDROSE UNION DEVELOPMENT SHARES LIMITED | Private company limited by shares | Live |
| UNION BATTERY LIMITED | Private company limited by shares | Live |
| United Glory LNG Shipping Co., Limited | Private company limited by shares | Live |
| MAX UNION INDUSTRIES LIMITED | Private company limited by shares | Live |
| Unlimit the Limited | Private company limited by shares | Live |
| Leader Universe Limited | Private company limited by shares | Live |
| GREAT UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION GROUP ENTERPRISES LIMITED | Private company limited by shares | Live |
| United Sky HealthCare Limited | Private company limited by shares | Live |
| FRIENDS UNION MAINTENANCE LIMITED | Private company limited by shares | Live |
| UNIVERSAL TECHNO SOLUTIONS LIMITED | Private company limited by shares | Live |
| Unison Commerce Limited | Private company limited by shares | Live |
| UNION SAVOR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Elite Union Engineering Limited | Private company limited by shares | Live |
| Undefeated Limited | Private company limited by shares | Live |
| UNITED EQUITY LIMITED | Private company limited by shares | Live |
| UNION INDUSTRY EQUIPMENTS LIMITED | Private company limited by shares | Live |
| HUN UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| Brighten Universe Group Limited | Private company limited by shares | Live |
| Education Centres' Union Limited | Private company limited by shares | Live |
| Union Wealth International Holdings Limited | Private company limited by shares | Live |
| Children Unique Limited | Private company limited by shares | Live |
| Espery Union Co., Limited | Private company limited by shares | Live |
| ROYALTY UNIVERSAL COMPANY LIMITED | Private company limited by shares | Live |
| W1 UNIFORM LIMITED | Private company limited by shares | Live |
| Union Safety Services Limited | Private company limited by shares | Live |
| WORLD SHIYEJIA UNION GROUP LIMITED | Private company limited by shares | Live |
| Union Translation Service Limited | Private company limited by shares | Live |
| HK WE UNION EDUCATION COMPANY LIMITED | Private company limited by shares | Live |
| International Union Fitness Food Limited | Private company limited by shares | Live |
| Union Star Lighting Limited | Private company limited by shares | Live |
| UNIVERSAL COMPUTING SOLUTIONS LIMITED | Private company limited by shares | Live |
| STARS UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION SKYTONE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| China Union Sports Technology Limited | Private company limited by shares | Live |
| Union Kitchen Limited | Private company limited by shares | Live |
| HK Universocial Limited | Private company limited by shares | Live |