| UNIVERSE LASER & VIDEO CO. LIMITED | Private company limited by shares | Live |
| KONG UNION LIMITED | Private company limited by shares | Dissolved |
| UNICOSMOS REALTY & INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GLORY UNION IMITATION JEWELLERY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CURE LIMITED | Private company limited by shares | Dissolved |
| PRODUCTS UNION GARMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIWIDE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITREASURE LIMITED | Private company limited by shares | Dissolved |
| UNITED SOCIAL SERVICE CENTRE LIMITED | Company limited by guarantee | Live |
| UNIAUST COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LINE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNISON CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNITED MACHINING WORKS, LIMITED | Private company limited by shares | Dissolved |
| UNIVERSITY OF LONDON GRADUATES ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| GREAT UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNITED KESVICK LIMITED | Private company limited by shares | Live |
| UNIOCEAN LIMITED | Private company limited by shares | Dissolved |
| UNION RICH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION MARK DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNISON DESIGN & CONTRACT COMPANY LIMITED | Private company limited by shares | Dissolved |
| BEST UNION TEXTILE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LASER ALARM COMPANY LIMITED | Private company limited by shares | Live |
| UNION BASE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION FIREWORK ASSOCIATION LIMITED | Company limited by guarantee | Live |
| UNIFLY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| JOYFUL UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION RESOURCES (EDUCATIONAL DEVELOPMENT) LIMITED | Private company limited by shares | Live |
| WISE UNION PROFESSIONAL HOUSING MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL BRIGHT LIMITED | Private company limited by shares | Dissolved |
| UNITED STANDARD LIMITED | Private company limited by shares | Dissolved |
| UNI-RAY LIMITED | Private company limited by shares | Dissolved |
| UNITED HILL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED TARGET LIMITED | Private company limited by shares | Dissolved |
| UNION RISE COMPANY LIMITED | Private company limited by shares | Live |
| UNION FAITH ENERGY (HK) LIMITED | Private company limited by shares | Live |
| UNITRANS CONSOLIDATED COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION FINANCE LIMITED | Private company limited by shares | Dissolved |
| EASY UNION COMPANY LIMITED | Private company limited by shares | Live |
| GREAT & NEW UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| FAIR UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| LONG UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIQUE CREATION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL WOOD LIMITED | Private company limited by shares | Dissolved |
| UNION FIT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIONSTEAD LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION LINNA (H.K.) LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION LIGHT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| PURE UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CHAIN LIMITED | Private company limited by shares | Live |
| UNITED ENAMELWARE COMPANY LIMITED | Private company limited by shares | Live |
| LONG UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| COIN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION MARK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GATE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CHANCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIWELL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| NEW UNITED LAUNDRY LIMITED | Private company limited by shares | Live |
| UNIFORTUNE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIMIX LIMITED | Private company limited by shares | Live |
| UNIFIED MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 22-Jan-1999 |
| FU SHAN AND KING SHAN TAICHE STUDENT UNION LIMITED | Company limited by guarantee | Dissolved |
| UNION HONEST INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNITHRUST LIMITED | Private company limited by shares | Dissolved |
| WIN UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| S.M.K. UNITED LIMITED | Private company limited by shares | Live |
| UNIJET INVESTMENTS LIMITED | Private company limited by shares | Live |
| BIG UNION MOTORS LIMITED | Private company limited by shares | Live |
| Global Union Transportation Limited | Private company limited by shares | Live |
| UNIVERSAL GAIN TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL MATE LIMITED | Private company limited by shares | Dissolved |
| TOP UNIVERSAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL JEWELLERY COMPANY LIMITED | Private company limited by shares | Live |
| UNITED EYE-CARE CENTRE LIMITED | Private company limited by shares | Dissolved |
| UNITED CREATION LIMITED | Private company limited by shares | Dissolved |
| UNION PRECISION TOOLS MACHINERY LIMITED | Private company limited by shares | Dissolved |
| UNISPEED LIMITED | Private company limited by shares | Dissolved |
| GROUP UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HEART UNION TAXI ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| UNION POINT SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNION SKY LIMITED | Private company limited by shares | Dissolved |
| SOON UNION LIMITED | Private company limited by shares | Dissolved |
| UNITCOST COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITWEAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITPEACE COMPANY LIMITED | Private company limited by shares | Live |
| UNION MANOR INVESTMENT LIMITED | Private company limited by shares | Live |
| GROW UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNITED VIDEO DISTRIBUTORS LIMITED | Private company limited by shares | Dissolved |
| UNIWAY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SOLAR UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SCANNER CRAFT LIMITED | Private company limited by shares | Dissolved |
| UNICAM LIMITED | Private company limited by shares | Dissolved |
| UNIC COMPANY LIMITED | Private company limited by shares | Live |
| UNI-FALCON LIMITED | Private company limited by shares | Dissolved |
| SOLAR UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNION TEAM LIMITED | Private company limited by shares | Live |
| UNIQUE OIL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNINEGO LIMITED | Private company limited by shares | Dissolved |
| UNIPED LIMITED | Private company limited by shares | Dissolved |