| UNIPRO CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION SQUARE LIMITED | Private company limited by shares | Live |
| UNIONPORT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FAIR ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG WUSHU UNION LIMITED | Company limited by guarantee | Live |
| FINE UNION LIMITED | Private company limited by shares | Live |
| UNIMAN LIMITED | Private company limited by shares | Live |
| UNIHALL LIMITED | Private company limited by shares | Dissolved |
| UNIONMATE LIMITED | Private company limited by shares | Live |
| UNI-ORIENT LIMITED | Private company limited by shares | Dissolved |
| UNI-SUPER COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-LONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITECH CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| JOY UNION ESTATE LIMITED | Private company limited by shares | Live |
| UNITED CENTRE INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNIVERSAL MULTIMEDIA CO., LIMITED | Private company limited by shares | Live Ceased dormancy on 16-Jun-2000 |
| UNIVERSAL FAME MANUFACTORY LIMITED | Private company limited by shares | Live |
| UNION TECH DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIWEALTH INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL HATS & CAPS MANUFACTURING, LIMITED | Private company limited by shares | Live |
| A-TEX UNION UNDER-FASHION FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNITECH MAGNETIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITECH PHOTO SUPPLIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUILD UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOINT UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOFT UNION LIMITED | Private company limited by shares | Dissolved |
| UNION MOTION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED AMUSEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNISPORT LIMITED | Private company limited by shares | Dissolved |
| SOON UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| LAND UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITOP LIMITED | Private company limited by shares | Dissolved |
| UNION TRIP LIMITED | Private company limited by shares | Dissolved |
| UNION PACKO LIMITED | Private company limited by shares | Dissolved |
| UNION ZONE LIMITED | Private company limited by shares | Live |
| UNISON FORTUNE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNITED FINE LIMITED | Private company limited by shares | Live |
| UNITED HOPE LIMITED | Private company limited by shares | Dissolved |
| UNITED POINT LIMITED | Private company limited by shares | Dissolved |
| UNITED COASTAL CO. LIMITED | Private company limited by shares | Dissolved |
| UNIQUECO COMPANY LIMITED | Private company limited by shares | Dissolved |
| RAINBOW UNION LIMITED | Private company limited by shares | Dissolved |
| UNIFULL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIWIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION REGISTRARS LIMITED | Private company limited by shares | Live |
| UNION FORCE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION GOOD INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION HEART INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION TEAM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION VIEW INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION YIELD INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION GATE INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION HEALTH PRODUCTS LIMITED | Private company limited by shares | Live |
| UNIFIED POWER INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION STAR INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNICOSMIC LIMITED | Private company limited by shares | Dissolved |
| WIDE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| KIND UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SUPER UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| KING UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION RADIO SERVICES TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED CHINA INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNI-CROWN LIMITED | Private company limited by shares | Dissolved |
| UNITED BISCUITS ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNITRADE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED POWER, TOOLS LIMITED | Private company limited by shares | Dissolved |
| UNION KEY LIMITED | Private company limited by shares | Live |
| CHARM UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL RACE LIMITED | Private company limited by shares | Dissolved |
| UNITIME INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL MUSIC PUBLISHING LIMITED | Private company limited by shares | Live |
| UNITONIC LIMITED | Private company limited by shares | Dissolved |
| UNITOW LIMITED | Private company limited by shares | Live |
| UNION HONOUR INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| FOREVER UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION PROPERTY LIMITED | Private company limited by shares | Dissolved |
| UNIDOOR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION WORTH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ASIATIC UNION INDUSTRIES LIMITED | Private company limited by shares | Live |
| UNITED STRAITS CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| UNION CHAMP LIMITED | Private company limited by shares | Live |
| UNICON FOOD SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| UNITECH COMPUTER LIMITED | Private company limited by shares | Dissolved |
| UNI-SIDE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITON TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CLUBS LIMITED | Private company limited by shares | Dissolved |
| UNITON INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIONGRADE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION PARTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION OFFICES LIMITED | Private company limited by shares | Dissolved |
| UNION WISE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNITED PACIFIC GOLD (FE) LIMITED | Private company limited by shares | Dissolved |
| UNIFRIGHT LIMITED | Private company limited by shares | Dissolved |
| UNIBUILD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL POINT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIPEX INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FOND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION WORTH LIMITED | Private company limited by shares | Dissolved |
| UNIONINN LIMITED | Private company limited by shares | Dissolved |
| LONG UNIVERSE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |