| UNION INTERNATIONAL EXPRESS SERVICE LIMITED | Private company limited by shares | Dissolved |
| SMART UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIONET ENTERPRISE LIMITED | Private company limited by shares | Live |
| EVER CONCORD UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| LONG UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GOOD EVER UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNISON HEALTH PRODUCTS (HK) COMPANY LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIES (HK) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL INTERNET (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KARMA UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL POWER SHIPPING LIMITED | Private company limited by shares | Live |
| UNITED GOLDNET LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIAL (FAR EAST) LIMITED | Private company limited by shares | Live |
| UNIVERSAL CYBER LIMITED | Private company limited by shares | Dissolved |
| UNITED BIZNET, INC. LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION HI-TECH CO., LIMITED -THE- | Private company limited by shares | Dissolved |
| UNITED VISION CARE LIMITED | Private company limited by shares | Live |
| BRIGHT SMOOTH DOCTORS' UNION LIMITED | Private company limited by shares | Dissolved |
| CV UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE SCORE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SUPER UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION WAY MANAGEMENT LIMITED | Private company limited by shares | Live |
| PACIFIC UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION POWER (H.K.) LIMITED | Private company limited by shares | Live |
| UNIVERSAL PROSPECTS LIMITED | Private company limited by shares | Live |
| UNITED VIEW MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| UNION SUN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED SCORE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNITED SENSE LIMITED | Private company limited by shares | Dissolved |
| WORLD IMAGE STYLIST UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL (CHINA-HK) TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| UNITED PARQUET MILLS LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION NETWORK LIMITED | Private company limited by shares | Live |
| UNITED KENT LIMITED | Private company limited by shares | Dissolved |
| ORIENT UNION INTERNATIONAL TRADING & TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| UNION TEXTILE GARMENTS LIMITED | Private company limited by shares | Dissolved |
| UNYHEALTH LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS (OIL) LIMITED | Private company limited by shares | Dissolved |
| INT'L CULTURE EDUCATION TRADES UNION LIMITED | Private company limited by shares | Dissolved |
| EVER UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNIVERSAL GLOBAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIFINE LIMITED | Private company limited by shares | Dissolved |
| UNITEDHEALTHCARE ASIA LIMITED | Private company limited by shares | Dissolved |
| CHAMPION UNION LIMITED | Private company limited by shares | Dissolved |
| GENERAL UNIVERSAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNITED CHAMP LIMITED | Private company limited by shares | Dissolved |
| UNION SHARE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED INTELLECTUS (CHINA) INVESTMENT CONSULTANCY COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOOD UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| CYBER UNITED INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL RESOURCES MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNIQUE FASHION & FUR COMPANY LIMITED | Private company limited by shares | Live |
| UNITED ASIA GROUP LIMITED | Private company limited by shares | Live |
| UNION SYSTEMS INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL BIO-CHEM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNI-YONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH RESIDENTIAL TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNI-MEDIA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION GAIN HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNIGOOD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL WUDAO UNION DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| UNION UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE BASE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNITED SUCCESS ASIA LIMITED | Private company limited by shares | Dissolved |
| GLORY UNIVERSE ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| UNLIMITED HOLDING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FINE (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| MODERN UNIVERSAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FIRST UNITED COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION BASE (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNITED OCEAN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNITED TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNITED FAME ENTERPRISE LIMITED | Private company limited by shares | Live |
| PEACE UNION LIMITED | Private company limited by shares | Dissolved |
| PEACE UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNITED CENTRE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL FOCUS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNOSOFT LIMITED | Private company limited by shares | Dissolved |
| UNITS CHINA COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL FURNITURE MADE LIMITED | Private company limited by shares | Dissolved |
| UNION WHACKERS LIMITED | Private company limited by shares | Live |
| UNIVERSAL MANAGEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| INFOSMART UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNITED ASCENT LIMITED | Private company limited by shares | Live |
| UNILINK PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNINATURAL LIMITED | Private company limited by shares | Dissolved |
| UNION RICHEST LIMITED | Private company limited by shares | Live |
| UNION PAPER COMPANY LIMITED | Private company limited by shares | Dissolved |
| LINK UNION (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| WINNER UNION LIMITED | Private company limited by shares | Dissolved |
| UNITED OIL TRADING LIMITED | Private company limited by shares | Dissolved |
| NEO UNIVERSAL TRADE COMPANY LIMITED | Private company limited by shares | Live |
| UNION SHEEN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNITED STAR ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED POWER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNISOFT LIMITED | Private company limited by shares | Dissolved |
| UNION TECH LIMITED | Private company limited by shares | Dissolved |
| UNION PRAISE LIMITED | Private company limited by shares | Dissolved |
| UNION TRADERS HONG KONG LIMITED | Private company limited by shares | Dissolved |