| BRAVE UNION LIMITED | Private company limited by shares | Live |
| UNION FORCE TRADING LIMITED | Private company limited by shares | Live |
| Asia (Oceania) Top Talent Sports Union Limited | Private company limited by shares | Live |
| UNIQUE SOLAR LIMITED | Private company limited by shares | Live |
| UNISON COSMETIC PHARMACY LIMITED | Private company limited by shares | Live |
| Universal Management Solutions Co., Limited | Private company limited by shares | Live |
| Hong Kong Union of Tea Masters Limited -The- | Private company limited by shares | Live |
| MASTER UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| SIBLING UNION LIMITED | Private company limited by shares | Live |
| Education University Of HK Graduates Association Limited -The- | Company limited by guarantee | Live |
| Unigood Components Limited | Private company limited by shares | Live |
| LISTING ABROAD INT'L LW UNION MANAGEMENT LIMITED | Private company limited by shares | Live |
| UNIVERSAL FINE JEWELLERY LIMITED | Private company limited by shares | Live |
| UNION RIPPLES INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| PREMIER UNION LIMITED | Private company limited by shares | Live |
| Popup Union Investment Co., Limited | Private company limited by shares | Live |
| AIF Union Investment Company Limited | Private company limited by shares | Live |
| UNION GROUP HK LIMITED | Private company limited by shares | Live |
| Universal Overseas Trade Limited | Private company limited by shares | Live |
| UNION DECORATION IMPORT&EXPORT CO., LIMITED | Private company limited by shares | Live |
| UNION RC INVESTMENT HOLDING LIMITED | Private company limited by shares | Live |
| UBUNTU UNION LIMITED | Private company limited by shares | Live |
| SAVOUR UNION HK LIMITED | Private company limited by shares | Live |
| Union wolves Interactive Limited | Private company limited by shares | Live |
| Honesty Union Company Limited | Private company limited by shares | Live |
| Union Arch Interior Design & Contracting Limited | Private company limited by shares | Live |
| STAR UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNDERGROUND CLASSICS LIMITED | Private company limited by shares | Live |
| Sea Dweller Underwater Academy Limited | Private company limited by shares | Live |
| Oriental Union Exploit Technology Co., Limited | Private company limited by shares | Live |
| ETERNAL UNITED LIMITED | Private company limited by shares | Live |
| NT UNITED TRADING LIMITED | Private company limited by shares | Live |
| PS Union Limited | Private company limited by shares | Live |
| UNGA Limited | Private company limited by shares | Live |
| UNIBLANCH LIMITED | Private company limited by shares | Live |
| Undersun Incorporated Limited | Private company limited by shares | Live |
| UNIQUE ULTRA LIMITED | Private company limited by shares | Live |
| UNIQUE SIGHT LIMITED | Private company limited by shares | Live |
| UNION-SHINE RADIATOR COMPANY LIMITED | Private company limited by shares | Live |
| UNION EIGHT LIMITED | Private company limited by shares | Live |
| UNITED ROYAL LIMITED | Private company limited by shares | Live |
| United One Limited | Private company limited by shares | Live |
| RICH UNION TRADE LIMITED | Private company limited by shares | Live |
| BIG UNION (HK) LIMITED | Private company limited by shares | Live |
| Unique Display Limited | Private company limited by shares | Live |
| Uniore Partners Limited | Private company limited by shares | Live |
| AIF Union Asset Management Company Limited | Private company limited by shares | Live |
| AIF Union Project Management Company Limited | Private company limited by shares | Live |
| Amples union Limited | Private company limited by shares | Live |
| CS Universal Limited | Private company limited by shares | Live |
| SKY UNIVERSE CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| Strange Universe (Group) Co., Limited | Private company limited by shares | Live |
| Hassle-Free Union Limited | Company limited by guarantee | Live |
| YI XIANG UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UNIONUP HOLDING LIMITED | Private company limited by shares | Live |
| GREATROCK UNITED LIMITED | Private company limited by shares | Live |
| International Union Trading (Holdings) Limited | Private company limited by shares | Live |
| SHEEN UNITED LIMITED | Private company limited by shares | Live |
| UNITED ELITE INC LIMITED | Private company limited by shares | Live |
| UNTHINK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UNION CLASSIC LIMITED | Private company limited by shares | Live |
| CHARTER UNION LIMITED | Private company limited by shares | Live |
| PACIFIC UNION IMPORT & EXPORT CO., LIMITED | Private company limited by shares | Live |
| Boundless Universe Group Limited | Private company limited by shares | Live |
| UNITECH GLOBAL LIMITED | Private company limited by shares | Live |
| Pets Union Co., Limited | Private company limited by shares | Live |
| UNGER COMPANY LIMITED | Private company limited by shares | Live |
| Swiss Uniya International Holdings Group Co., Limited | Private company limited by shares | Live |
| LEADING UNION LIMITED | Private company limited by shares | Live |
| UNION GIANT DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Information Union World Company Limited | Private company limited by shares | Live |
| UNION PROUD LIMITED | Private company limited by shares | Live |
| ELITE UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Wins Union Industrial Limited | Private company limited by shares | Live |
| UNION CHEMICALS HOLDING LIMITED | Private company limited by shares | Live |
| United States Baiwei Jingniang Beer (China) Co., Limited | Private company limited by shares | Live |
| Unifiber Limited | Private company limited by shares | Live |
| Gold (Union) Trading Co., Limited | Private company limited by shares | Live |
| PAL UNISON LIMITED | Private company limited by shares | Live |
| GP United Group Limited | Private company limited by shares | Live |
| UNIVERSAL PHILHARMONIC ORCHESTRA LIMITED | Private company limited by shares | Live |
| AIA UNION MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| UNION COOPERATION HOLDINGS LIMITED | Private company limited by shares | Live |
| Global Union Benefit Company Limited | Private company limited by shares | Live |
| UNIVERSE SOURCE LIMITED | Private company limited by shares | Live |
| UNION ELITE GROUP LIMITED | Private company limited by shares | Live |
| UNION TRADE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| POWER UNION LIMITED | Private company limited by shares | Live |
| AURUM UNIVERSAL MINING COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL MEDICAL TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| HK United Design International Soft Garment Co., Limited | Private company limited by shares | Live |
| XINHAI MINING UNION (HK) COMPANY LIMITED | Private company limited by shares | Live |
| Union Biotechnology HK Co., Limited | Private company limited by shares | Live |
| International Business and Trade Union Limited | Private company limited by shares | Live |
| DEYU UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Universe (Hong Kong) Environmental Limited | Private company limited by shares | Live |
| Uncle K Limited | Private company limited by shares | Live |
| CHINA UNION PRESS LIMITED | Private company limited by shares | Live |
| Unicle Company Limited | Private company limited by shares | Live |
| UNION PACKING MACHINERY LIMITED | Private company limited by shares | Live |