| UNIONWEST MACHINERY LIMITED | Private company limited by shares | Live |
| UNIWIDE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| ATE UNIQUE CONSOLIDATORS LIMITED | Private company limited by shares | Live |
| UNI-SIGNAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-SHARP COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-WATTS ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| REASONIC UNION LIMITED | Private company limited by shares | Live |
| JOIN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION TYPESETTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPEROUS PLASTIC MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| UNIQUE-EXPO-SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| WIN UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| NORTHGOOD UNITED LIMITED | Private company limited by shares | Dissolved |
| UNIGIFT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTHY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL BLISS LIMITED | Private company limited by shares | Dissolved |
| UNIPEACE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNI-YOUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-MAIN COMPANY LIMITED | Private company limited by shares | Live |
| UNI-PEARL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNISON SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED FAST LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL BRIGHT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION TROPICAL FISH FARM LIMITED | Private company limited by shares | Live |
| UNION OCEAN ENGINEERING SERVICES COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSELLE LIMITED | Private company limited by shares | Live |
| ART UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TREASURE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| FAMOUS UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| FINE UNION ACCOUNTANCY & SECRETARY LIMITED | Private company limited by shares | Live |
| PLACEFUL UNION LIMITED | Private company limited by shares | Dissolved |
| UNI-VERVE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-AM COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TOUCH LIMITED | Private company limited by shares | Dissolved |
| UNION WAY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| WHOLE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION BUSINESS MACHINES COMPANY LIMITED | Private company limited by shares | Live |
| UNITED HOTELS LIMITED | Private company limited by shares | Dissolved |
| UNIFY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITSKY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-WEALTH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION SERVICES LIMITED | Private company limited by shares | Dissolved |
| STANDARD UNION LIMITED | Private company limited by shares | Dissolved |
| UNITEAM COMPANY LIMITED | Private company limited by shares | Dissolved |
| JET UNITED LIMITED | Private company limited by shares | Dissolved |
| UNISON SOUND COMPANY LIMITED | Private company limited by shares | Dissolved |
| RIGHT UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CRYSTAL LIMITED | Private company limited by shares | Dissolved |
| CHINA UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNITED FLOORING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-TECH INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNI-KING INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNI-TOP INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNI-GERM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNION DEVELOPMENT DESIGN CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNITED DASSIE LIMITED | Private company limited by shares | Dissolved |
| UNIPLAN HONG KONG LIMITED | Private company limited by shares | Live |
| UNI-STRONG INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNI-HAM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITED BOARD COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITAGE LIMITED | Private company limited by shares | Dissolved |
| UNI-HOME COMPANY LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GO UNION LIMITED | Private company limited by shares | Live |
| LONG UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| LONG UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-GREAT COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOAL UNION LIMITED | Private company limited by shares | Dissolved |
| UNITED SEAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVEST LIMITED | Private company limited by shares | Dissolved |
| LINK UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ALUMINIUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FORT TRADING LIMITED | Private company limited by shares | Live |
| UNION SOURCE TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITED FORD LIMITED | Private company limited by shares | Live |
| UNITRODE ELECTRONICS ASIA LIMITED | Private company limited by shares | Dissolved |
| SOUTH UNION ELECTRONIC & INSTRUMENTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SPORTS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PHYSIOTHERAPY CENTRE COMPANY LIMITED | Private company limited by shares | Dissolved |
| FLOW UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOY UNIVERSAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION/SCICORP/ PJB CONGLOMERATE LIMITED | Private company limited by shares | Dissolved |
| WIN UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| PAN UNION (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| OLYMPIC UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LAKE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION BRIDGE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PALACE COMPANY LIMITED | Private company limited by shares | Live |
| UNION SHARP COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH COMPANY LIMITED | Private company limited by shares | Live |
| EASTERN UNIVERSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNISON OPTIMUM (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNISON SHOES TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNICOURT LIMITED | Private company limited by shares | Dissolved |
| UNION LINE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SUN UNION GROUP LIMITED | Private company limited by shares | Dissolved |