| TANWEER UNITED LIMITED | Private company limited by shares | Live |
| UNIQUE COLLECTIONS LIMITED | Private company limited by shares | Live |
| Yacht Union Network International Share Limited | Private company limited by shares | Live |
| UNIO Limited | Private company limited by shares | Live |
| UNIQUO PACIFIC LIMITED | Private company limited by shares | Live |
| CHINA ENTERPRISE UNION GROUP LIMITED | Private company limited by shares | Live |
| SG UNIVERSAL TRADING LIMITED | Private company limited by shares | Live |
| Uninal Group Limited | Private company limited by shares | Live |
| Gold Universe Consulting Limited | Private company limited by shares | Live |
| CHINA CAR UNION ASSOCIATION CO., LIMITED | Private company limited by shares | Live |
| UNION WISE MATERIALS (HK) LIMITED | Private company limited by shares | Live |
| STARS UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| CHILDREN AND PARENTS UNION LIMITED | Company limited by guarantee | Live |
| BEST UNION TRAVEL (HK) LIMITED | Private company limited by shares | Live |
| GOLF UNITED LIMITED | Private company limited by shares | Live |
| UNION MARK CORPORATION LIMITED | Private company limited by shares | Live |
| HK JST UNITED CO., LIMITED | Private company limited by shares | Live |
| Universal Smart Solutions Limited | Private company limited by shares | Live |
| TONG TRADING UNION LIMITED | Private company limited by shares | Live |
| Hong Kong Union Pay Service Company Limited | Private company limited by shares | Live |
| UNITED RISING LIMITED | Private company limited by shares | Live |
| UNION RAMON COMPANY LIMITED | Private company limited by shares | Live |
| China Tridacna Art Boutique Union Association Limited | Private company limited by shares | Live |
| WORLD CULTURES INDUSTRY EXCHANGE UNION LIMITED | Private company limited by shares | Live |
| CHINA UNIMEN ENTERPRISE LIMITED | Private company limited by shares | Live |
| International Union of Food Development Co., Limited | Private company limited by shares | Live |
| UNION SNK & CHINA TRADING LIMITED | Private company limited by shares | Live |
| UNDERCUT GROUP LIMITED | Private company limited by shares | Live |
| UNIVERSAL SUCCESS ENTERPRISE LIMITED | Private company limited by shares | Live |
| GRAND UNION INTERNATIONAL INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |
| HK WIKENTER UNIFORM CO., LIMITED | Private company limited by shares | Live |
| CHINA COACH UNION CO., LIMITED | Private company limited by shares | Live |
| Union Sky Sourcing Corporation Limited | Private company limited by shares | Live |
| MILABB BAO SHENG UNITED CO., LIMITED | Private company limited by shares | Live |
| UNIQUE BELLA LIMITED | Private company limited by shares | Dissolved |
| UNION SHINY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSE INTERNATIONAL (HOLDING) COMPANY LIMITED | Private company limited by shares | Live |
| China Business Association Union Limited | Private company limited by shares | Live |
| Fortune Union Develop Limited | Private company limited by shares | Live |
| UNION GLORY ASSET MANAGEMENT (HK) LIMITED | Private company limited by shares | Live |
| CHEER UNION CORPORATION LIMITED | Private company limited by shares | Live |
| Unity Industry Limited | Private company limited by shares | Live |
| Jack Jordan Universal Limited | Private company limited by shares | Live |
| Unilumin Energy Technology Limited | Private company limited by shares | Live |
| Uni-Valve Co. Limited | Private company limited by shares | Live |
| Union Gain Electronics Co., Limited | Private company limited by shares | Live |
| CHANGJIANG UNION INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| UNITED AS ONE CO., LIMITED | Private company limited by shares | Live |
| UNION TOP CREATION (HK) CO., LIMITED | Private company limited by shares | Live |
| Unique Infrastructure HK Limited | Private company limited by shares | Live |
| Unichem Co., Limited | Private company limited by shares | Live |
| EAGLE UNION CORPORATION LIMITED | Private company limited by shares | Live |
| NATION UNION LIMITED | Private company limited by shares | Live |
| RICHGATE UNIVERSAL LIMITED | Private company limited by shares | Live |
| Union Optech (HK) Co., Limited | Private company limited by shares | Live |
| UNITEDGREEN LIMITED | Private company limited by shares | Dissolved |
| Unity of Hong Kong SME Limited | Company limited by guarantee | Live |
| Golden Union Agrochemical (H.K.) Co., Limited | Private company limited by shares | Live |
| UNITED PROJECTS & SERVICE LIMITED | Private company limited by shares | Live |
| ZAN MEN JIA BUSINESS UNION LIMITED | Private company limited by shares | Dissolved |
| UNION DRAGON (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION CREATE INDUSTRIAL LIMITED | Private company limited by shares | Live |
| PACIFIC UNITED BEVERAGE LIMITED | Private company limited by shares | Live |
| GREAT UNION INDUSTRY LIMITED | Private company limited by shares | Live |
| Uni-Pro Wealth Management Company Limited | Private company limited by shares | Live |
| MFT UNIVERSAL LIMITED | Private company limited by shares | Live |
| Uniclub Hosting HK Limited | Private company limited by shares | Dissolved |
| UNITEAM OFFSHORE LIMITED | Private company limited by shares | Live |
| UNION ACCORD LIMITED | Private company limited by shares | Live |
| Universe Dynamics Technology Co., Limited | Private company limited by shares | Dissolved |
| UNION FIRST ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNITED WORLD CHINA ZHOUSHAN INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| UNION SEA SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| PLY UNION LIMITED | Private company limited by shares | Live |
| OCEAN UNION INTERNATIONAL TRADING HK LIMITED | Private company limited by shares | Live |
| LIANYUNGANG UNION INTERNATIONAL FREIGHT CO., LIMITED | Private company limited by shares | Live |
| Uniteek Limited | Private company limited by shares | Live |
| HK XINGYUAN UNION LIMITED | Private company limited by shares | Live |
| UNISPEEDY TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK GLORY UNION MEDICAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| HAPPINESS UNION GROUP LIMITED | Private company limited by shares | Live |
| LONG UNITED TRADING LIMITED | Private company limited by shares | Live |
| ABLE UNION CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| BARUS UNITED CO., LIMITED | Private company limited by shares | Live |
| Universal Chief Company Limited | Private company limited by shares | Live |
| NEW UNITED INC. LIMITED | Private company limited by shares | Live |
| OCEAN UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNIVERSE DREAM TRADING LIMITED | Private company limited by shares | Live |
| Unite Enterprise Company Limited | Private company limited by shares | Live |
| UNITED HILL CHINA LIMITED | Private company limited by shares | Live |
| UNICOST CO., LIMITED | Private company limited by shares | Live |
| China Internet Finance Union Limited | Private company limited by shares | Live |
| UNIVERSAL TRADING HK LIMITED | Private company limited by shares | Live |
| GENIUS UNION LIMITED | Private company limited by shares | Live |
| GREATER UNION GROUP CO LIMITED | Private company limited by shares | Live |
| UNION ACE INC LIMITED | Private company limited by shares | Live |
| HK Wanshang Union Holding Group Limited | Private company limited by shares | Live |
| CHINA ASIA UNION INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| Union Air Service Limited | Private company limited by shares | Live |
| CREATOR UNIVERSAL TECHNOLOGY LIMITED | Private company limited by shares | Live |