| UNIVERSE STAR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GLOBAL CHINESE UNION PRESS LIMITED | Private company limited by shares | Dissolved |
| CHINA UNIONS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL RESTAURANT DEPOT LIMITED | Private company limited by shares | Dissolved |
| KWAI CHING UNITED GREEN PUBLIC LIGHT BUS COMPANY LIMITED | Private company limited by shares | Live |
| TRINITY UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| BEST UNION INTERNATIONAL SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| UNCLE RAY ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| UNION RICH PAPER COMPANY LIMITED | Private company limited by shares | Live |
| KT UNITED LIMITED | Private company limited by shares | Live |
| UNION TRADING TECHNOLOGY (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| STORAGE UNLIMITED LIMITED | Private company limited by shares | Dissolved |
| STALLION UNIVERSAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| CROWN UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| GOOD UNION TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| UNION FIRST MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FIELD HOLDINGS LIMITED | Private company limited by shares | Live |
| UNIWAY TECHNOLOGY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIIC TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION SMART LIMITED | Private company limited by shares | Live |
| GOODHOPE UNION LIMITED | Private company limited by shares | Dissolved |
| FORCE UNION LIMITED | Private company limited by shares | Live |
| HONG KONG HEALTH AND BEAUTY UNION LIMITED | Private company limited by shares | Dissolved |
| LEADER UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNI-RAY (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNION (INTERNATIONAL) COMPUTER LIMITED | Private company limited by shares | Live |
| CHINA UNITED INVESTMENTS LIMITED | Private company limited by shares | Live |
| TOP UNION MOTORS LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNITED INVESTMENTS LIMITED | Private company limited by shares | Live |
| KINGWELL UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION OCEAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNION (HONG KONG) DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| TOP UNION TECHNOLOGY ENTERPRISE CO., LIMITED | Private company limited by shares | Dissolved |
| PERMIUM. UNION INVESTMENT HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION PAYMENT TECHNOLOGY & SERVICES LIMITED | Private company limited by shares | Dissolved |
| CENTURY UNITED GROUP (H.K.) INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| UNICORP SALES LIMITED | Private company limited by shares | Live |
| UNICOM FINANCIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION GENIUS LIMITED | Private company limited by shares | Dissolved |
| NEW UNION LIMITED | Private company limited by shares | Dissolved |
| UNI-RICH TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNITED CORPORATE CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL LINK REGISTRATIONS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL LINK SECRETARIAL LIMITED | Private company limited by shares | Live |
| MILE UNIVERSAL DENIM FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION MED. (HONGKONG) LIMITED | Private company limited by shares | Live |
| CHINAWAY (UNION) CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| UNITED MAX PRODUCTS LIMITED | Private company limited by shares | Live Commenced dormancy on 27-Aug-2014 |
| NEW UNION INTERNATIONAL (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNION GAIN (ASIA) LIMITED | Private company limited by shares | Live |
| UNION METAL (CHINA) BUSINESS LIMITED | Private company limited by shares | Dissolved |
| UNION HARBOUR LIMITED | Private company limited by shares | Live |
| DAILY UNION LIMITED | Private company limited by shares | Dissolved |
| H.K. UNION GIFT CO. LIMITED | Private company limited by shares | Dissolved |
| UNION TOTAL LOGISTICS CO., LIMITED | Private company limited by shares | Dissolved |
| SKY UNION TRADING LIMITED | Private company limited by shares | Live |
| UNIVERSAL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD LIMITED | Private company limited by shares | Dissolved |
| UNIGAIN CENTURY LIMITED | Private company limited by shares | Live |
| UNITED WAY LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| BE Universal Limited | Private company limited by shares | Live |
| UNION WEALTHY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNION DRAGON HOLDINGS LIMITED | Private company limited by shares | Live |
| UNIFORMZONE LIMITED | Private company limited by shares | Dissolved |
| UNION STAR (O/A) LIMITED | Private company limited by shares | Live |
| UNION WELL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Barmark (UN) Limited | Private company limited by shares | Dissolved |
| MODERN STAR UNIVERSAL LIMITED | Private company limited by shares | Live |
| MAX UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNICONCEPT ASIA LIMITED | Private company limited by shares | Live |
| UNICOLOR PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| UNIFASHION TRADING COMPANY LIMITED | Private company limited by shares | Live |
| UNITED ATLANTIC LIMITED | Private company limited by shares | Live |
| UNIOPTICAL LIMITED | Private company limited by shares | Live |
| SINO-US JIANWEN UNIVERSITY LIMITED | Private company limited by shares | Dissolved |
| KING UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION HOLDINGS GROUP LIMITED | Private company limited by shares | Live |
| UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION WAY INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNIVERSITY SPOT COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNION TECH ELECTRONICS LIMITED | Private company limited by shares | Live |
| UNIGROUP TECHNOLOGY LIMITED | Private company limited by shares | Live |
| REGENT UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION SHINE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FIRST TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNITED RESOURCES ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ETERNAL UNION INTERNATIONAL SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| WASONIC UNITED LIMITED | Private company limited by shares | Dissolved |
| UNION WELL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION FIRST DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HK UNION LIHUA INT'L INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION DRAGON INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIQUE KIDS LIMITED | Private company limited by shares | Live |
| UNITED ELECTRONIC COMPONENTS LIMITED | Private company limited by shares | Dissolved |
| UNION TECH E&M COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL TECHNOLOGIES LIMITED | Private company limited by shares | Live |