| UNION LINK INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SYSTEM H.K LIMITED | Private company limited by shares | Dissolved |
| ALUMINUM UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG YOUTHS UNIFIED ASSOCIATION LIMITED | Company limited by guarantee | Live |
| NINGBO KORRECT UNION CO., LIMITED | Private company limited by shares | Live |
| UNITED STAR JD ENTERPRISES LIMITED | Private company limited by shares | Live |
| LIXIN UNITEDTEX LIMITED | Private company limited by shares | Dissolved |
| UNION RICH MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| CAROLINE UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| CREDOSYSTEM UNIVERSAL LIMITED | Private company limited by shares | Live |
| SUNFORM UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION ENVIRONMENT SERVICES LIMITED | Private company limited by shares | Dissolved |
| HOME-TECH UNION MANUFACTORY LIMITED | Private company limited by shares | Live |
| UNIQSAFE INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNISON H.K. HOLDINGS LIMITED | Private company limited by shares | Live |
| LIONHEART UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| XINYI UNION COMPANY LIMITED | Private company limited by shares | Live |
| ALNASR UNITED HK LIMITED | Private company limited by shares | Dissolved |
| EAST POLYTECHNIC UNIVERSITY LIMITED | Private company limited by shares | Dissolved |
| UNION ELITE LIMITED | Private company limited by shares | Dissolved |
| UNITED SENSE LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNIVERSAL LIMITED | Private company limited by shares | Live |
| GLORY UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PHOTOGRAPHY LIMITED | Private company limited by shares | Live |
| UNION STAR PROPERTIES LIMITED | Private company limited by shares | Live |
| GOLD UNITED TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIEPU ELECTRONIC (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT HONG KONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA NON-GOVERNMENTAL ENTERPRISES UNION LIMITED | Private company limited by shares | Live |
| NEO UNIVERSE GROUP LIMITED | Private company limited by shares | Dissolved |
| UNITED RIGHT LIMITED | Private company limited by shares | Live |
| JUN UNION TRADE LIMITED | Private company limited by shares | Dissolved |
| UNIQUE ASIA LIMITED | Private company limited by shares | Dissolved |
| UNITED HOLDING TRADING LIMITED | Private company limited by shares | Dissolved |
| GOOD TIME UNIVERSAL TRADING LIMITED | Private company limited by shares | Dissolved |
| CHINA RICH (UNIVERSAL) LIMITED | Private company limited by shares | Live |
| FOREST UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| HOPE UNION LIMITED | Private company limited by shares | Live |
| UNION ADVANCE LIMITED | Private company limited by shares | Dissolved |
| UNITRONICS COMPANY LIMITED | Private company limited by shares | Live |
| UNION KING INTERNATIONAL SHIPPING CO., LIMITED | Private company limited by shares | Dissolved |
| UNION A & A LIMITED | Private company limited by shares | Live |
| CREATIVE UNIVERSE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIWELL DEVELOPMENTS LIMITED | Private company limited by shares | Live |
| UNION KINETIC LIMITED | Private company limited by shares | Live |
| UNI-TA TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION CYCLONE GLOBAL LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| CHIPMAN UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| HONGKONG CHINA UNION CO., LIMITED | Private company limited by shares | Dissolved |
| Log United Capital Limited | Private company limited by shares | Live |
| UNION BILLION PROPERTY AGENCY LIMITED | Private company limited by shares | Live |
| UNION POWER ENGINEERING TRADING LIMITED | Private company limited by shares | Live |
| UNION GAIN DEVELOPMENT (H.K.) LIMITED | Private company limited by shares | Live |
| UNITE-STOCK ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| GLOBAL UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| EVER UNION GROUP HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL GROUP HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNIFY SYSTEM LIMITED | Private company limited by shares | Live |
| UNIVERSAL ASIA GROUP LIMITED | Private company limited by shares | Dissolved |
| DELTON UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| GLOBAL COMMERCIAL NEWSPAPERS UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNIQBE LIMITED | Private company limited by shares | Live |
| SMS UNITED ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| LONG UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION WORLD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNKAI LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL INTERNATIONAL EDUCATION UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE STAR CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITY TEXTILES LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| MYM UNTUNK LIMITED | Private company limited by shares | Live |
| UNICONCEPT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNIQUE VAST LIMITED | Private company limited by shares | Live |
| UNION OF WORLD LIU ASSOCIATION LIMITED | Company limited by guarantee | Live |
| BEIS UNITY LIMITED | Private company limited by shares | Live Commenced dormancy on 29-Jul-2011 |
| UNIVERSAL SECRETARY SERVICE LIMITED | Private company limited by shares | Dissolved |
| CHINA UNIVERSAL EXPRESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIK CONSTRUCTION ENGINEERING (PTY) LIMITED | Private company limited by shares | Live |
| UNITED STATES FLOWER UMBRELLA INTERNATIONAL FASHION LIMITED -THE- | Private company limited by shares | Dissolved |
| Union Chemicals Company Limited | Private company limited by shares | Live |
| Union Chemicals (China) Company Limited | Private company limited by shares | Live |
| ZHONGNONG UNITED INTERNATIONAL FERTILIZER IMPORT AND EXPORT GROUP (YANTAI) LIMITED | Private company limited by shares | Dissolved |
| UNI-LONGWIN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIQUE GOLD INVESTMENTS LIMITED | Private company limited by shares | Live |
| GREAT UNION ENVIRONMENTAL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TALENT UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| MIC UNITED CORP LIMITED | Private company limited by shares | Dissolved |
| UNION FIELD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION NEW (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNET TRADE HOLDING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG MAT UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| GLOBAL UNION ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNION SUN TRADING & DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| UNIPRO INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| UNION WALL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNITED LINK LIMITED | Private company limited by shares | Live |
| UNION CENTURY PROPERTIES LIMITED | Private company limited by shares | Dissolved |