| WAND UNION (HK) ANIMATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNITY LIFE HONG KONG LIMITED | Private company limited by shares | Dissolved |
| CHINA GOLD UNITED INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| LM United HK Limited | Private company limited by shares | Dissolved |
| UNION SPRING LIMITED | Private company limited by shares | Live |
| UNION WEALTH ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNIQUE METRO LIMITED | Private company limited by shares | Live |
| HongKong Union Development Technological Co., Limited | Private company limited by shares | Live |
| GLOBAL OVERSEA CHINESE UNITED INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| UNI-HARVEST LIMITED | Private company limited by shares | Live |
| GLORY UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION CONCORD CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION SEWING MACHINE COMPANY LIMITED | Private company limited by shares | Live |
| BEAUTY UNION GLOBAL LIMITED | Private company limited by shares | Live |
| EAST UNION (GROUP) CO., LIMITED | Private company limited by shares | Live |
| UNION ADVERTISING MEDIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| GRAND UNIVERSAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| K&A UNI-TECH LIMITED | Private company limited by shares | Live |
| OCEAN UNION WEALTH CREATION LIMITED | Private company limited by shares | Dissolved |
| CHINA ETAO COMMERCIAL UNION HOLDING LIMITED | Private company limited by shares | Live |
| Universal Network Limited | Private company limited by shares | Dissolved |
| GOLDEN UNION IMPORT & EXPORT CO., LIMITED | Private company limited by shares | Live |
| CHINA UNION (HK) DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| CHINA & GERMANY UNION INVESTMENT [GROUP] LIMITED | Private company limited by shares | Live |
| DIGIPORT UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION CHEER INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| STAR UNIVERSE LIMITED | Private company limited by shares | Live |
| UNITED BLOOM LIMITED | Private company limited by shares | Live |
| UNION FAIR ENTERPRISES LIMITED | Private company limited by shares | Live |
| HUGE UNION LIMITED | Private company limited by shares | Live |
| SINAFRIKA UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| TOP UNION INTERNATIONAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| Union Sources Logistics Limited | Private company limited by shares | Live |
| UNION KNOPF SPORT ACCESSORIES LIMITED | Private company limited by shares | Live |
| MRDL UNION INT'L CHEMICAL GROUP LIMITED | Private company limited by shares | Live |
| UNION TECHNOLOGY INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| BROTHER UNION LIMITED | Private company limited by shares | Live |
| HK YAFEN UNDERWEAR INDUSTRY LIMITED | Private company limited by shares | Live |
| ASOCIACION CLINICA UNION DENTAL EUROPEA LIMITED | Private company limited by shares | Dissolved |
| Grand Glory United Group Limited | Private company limited by shares | Live |
| UNIVERSE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| MISS BIKINI OF THE UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNION-BOX TECHINICAL CO., LIMITED | Private company limited by shares | Dissolved |
| UNION SMART SECRETARIES LIMITED | Private company limited by shares | Live |
| UNIVERSE (ASIA) ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNI-SKY LIMITED | Private company limited by shares | Dissolved |
| UNIVISION COMPANY LIMITED | Private company limited by shares | Live |
| STAR UNION GLOBAL LIMITED | Private company limited by shares | Dissolved |
| UNION LEGEND GRAND RICH LIMITED | Private company limited by shares | Dissolved |
| UNION SINO GRAND RICH LIMITED | Private company limited by shares | Live |
| UNION GRAND RICH LIMITED | Private company limited by shares | Dissolved |
| UNION STAR GRAND RICH LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION MEDIA GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION LAND HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION VICTORY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION VENUS CONSULTANTS LIMITED | Private company limited by shares | Live |
| CHINA BUDDHA BUSINESS UNION LIMITED | Private company limited by shares | Live |
| UNION WEALTH MATERIAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| DEMOCRATIC UNIFIED FOUNDATION (DUF) LIMITED | Company limited by guarantee | Dissolved |
| RED UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN UNION SMOOTH TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED GLORY ENTERPRISE LIMITED | Private company limited by shares | Live |
| UNITED STATES HANPOLO INTERNATIONAL BRAND CO., LIMITED | Private company limited by shares | Dissolved |
| CROWN UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION BASE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNIONBEST HONG KONG LIMITED | Private company limited by shares | Live |
| SKY UNICORN LIMITED | Private company limited by shares | Live |
| UNION GROUP INTERNATIONAL ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| UNITED HILL INVESTMENT LIMITED | Private company limited by shares | Live |
| LAND UNION LIMITED | Private company limited by shares | Live |
| UNION CHOICE INTERNATIONAL CREATION LIMITED | Private company limited by shares | Dissolved |
| WINNING UNION LIMITED | Private company limited by shares | Dissolved |
| MILLION UNITY LIMITED | Private company limited by shares | Live |
| UNION WIDE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION ON INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNIFICATION SHIPPING LIMITED | Private company limited by shares | Dissolved |
| TOP AND UNION SOURCING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK UNION EXPORTING LIMITED | Private company limited by shares | Live |
| WORLD WIDE UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNIND ENAMELING CO., LIMITED | Private company limited by shares | Dissolved |
| HERO UNION LIMITED | Private company limited by shares | Live |
| ORIENTAL UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNILINK ENTERPRISES LIMITED | Private company limited by shares | Live |
| LONG UNION LIMITED | Private company limited by shares | Dissolved |
| Unity 4wd Accessories Co., Limited | Private company limited by shares | Live |
| XIANGJIANG UNIVERSITY LIMITED | Private company limited by shares | Dissolved |
| Unity Bathroom Limited | Private company limited by shares | Dissolved |
| UNION ACHIEVED LIMITED | Private company limited by shares | Live |
| UNIVERSITY OF HONG KONG (SHENZHEN) LIMITED -THE- | Company limited by guarantee | Live |
| UNION WORLD SHIPPING LIMITED | Private company limited by shares | Live |
| UNIVERSAL WIN LIMITED | Private company limited by shares | Live |
| MILLION UNIVERSAL LIMITED | Private company limited by shares | Live |
| WORLD UNION HONG KONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT HONG KONG GROUP LIMITED | Private company limited by shares | Live |
| UNION MASTER DEVELOPMENT LIMITED | Private company limited by shares | Live |
| STAR & UNIVERSE ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL INDUSTRY (HK) LIMITED | Private company limited by shares | Dissolved |
| DE (EUROPEAN UNION) EXHIBITION SERVICE CO., LIMITED | Private company limited by shares | Live |
| UNITED CHINESE INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| UNION SUNSHINE GROUP LIMITED | Private company limited by shares | Dissolved |