| UNISON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIOCEAN SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNITBRIGHT LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| EXPERT UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNITED JEWELRY MANUFACTURER LIMITED | Private company limited by shares | Dissolved |
| HOME UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAY UNION SERVICE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CROWN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNISON ADVERTISING LIMITED | Private company limited by shares | Live |
| BIG UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNICLEVER LIMITED | Private company limited by shares | Dissolved |
| RIGHT UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIPHARM PHARMACEUTICAL AND COSMETIC LIMITED | Private company limited by shares | Live |
| UNIVERSAL WINNING FAR EAST LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL RIVER LIMITED | Private company limited by shares | Dissolved |
| UNION JERK COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIRST UNION CREDIT LIMITED | Private company limited by shares | Dissolved |
| JING UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| BIG UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION HOSPITAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL BOND LIMITED | Private company limited by shares | Dissolved |
| UNION MARK TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITED ANIMAL EXCHANGE LIMITED | Private company limited by shares | Live |
| UNION CONCEPT COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| VICTORY UNISTOCK LIMITED | Private company limited by shares | Dissolved |
| UNION TYPE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CEILING FANS COMPANY LIMITED | Private company limited by shares | Dissolved |
| KENT UNIFORMS LIMITED | Private company limited by shares | Live |
| UNION FANS MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PANSONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| AUSWAH UNION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| NEW UNION CANDLE LIMITED | Private company limited by shares | Live |
| KNITWEARS TRANSPORTATION UNION LIMITED | Company limited by guarantee | Dissolved |
| NICE UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| FAMOSO UNICON LIMITED | Private company limited by shares | Live |
| UNIQUE GAIN PRODUCTS LIMITED | Private company limited by shares | Live |
| UNION MALEKIN INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| G. K. UNION DOLLS MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| UNION CRYSTAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ACCESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MARK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| NINETY-7 FILM UNIT LIMITED -THE- | Private company limited by shares | Dissolved |
| MAX UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TAK TAI INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| CLEVER UNION SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNISPACE ANALOGUE WATCH MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION SILK FLOWERS MANUFACTORY LIMITED | Private company limited by shares | Live |
| UNION FORCE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIONHORN COMPANY LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CENTRE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNI-JOINTS LIMITED | Private company limited by shares | Dissolved |
| UNITART LIMITED | Private company limited by shares | Dissolved |
| UNITBEST LIMITED | Private company limited by shares | Live |
| PASS UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| GIANT EAGLE UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION BOCUBE UNDERWEAR MANUFACTURING LIMITED | Private company limited by shares | Live |
| UNIVERSAL-VEST COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIQUE GAIN TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION STRONG GROUP LIMITED | Private company limited by shares | Live |
| UNITED PEAK LIMITED | Private company limited by shares | Live |
| PAUL UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL BASE COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOOD UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNITEDAY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNISILK LIMITED | Private company limited by shares | Live |
| UNITED-CHINA AIR CARGO LIMITED | Private company limited by shares | Dissolved |
| UNITY LASER LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PLAN LIMITED | Private company limited by shares | Dissolved |
| SKY UNION SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNIQUE TECHNOLOGY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNION AUTOMATION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIGAIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SUM FUNG UNION LIMITED | Private company limited by shares | Dissolved |
| UNITED ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| UNION PROFIT INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNISMART INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION FULL COMPANY LIMITED | Private company limited by shares | Dissolved |
| P & C UNION GARMENT FACTORY LIMITED | Private company limited by shares | Dissolved |
| MAY YORK UNITED LIMITED | Private company limited by shares | Live |
| UNION FORTUNE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION KNITTERS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNITED ALUMNI ASSOCIATION OF TAIWAN UNIVERSITIES LIMITED | Company limited by guarantee | Live |
| UNION TIME COMPANY LIMITED | Private company limited by shares | Live |
| UNION VICTORY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNICOPIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONE UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| TRUE UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION C & E LIMITED | Private company limited by shares | Live |
| UNIWELL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL FAIR LIMITED | Private company limited by shares | Live |
| UNIVERSAL EMA LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL WAY LIMITED | Private company limited by shares | Live |
| UNIVERSAL TARGET LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SPEED LIMITED | Private company limited by shares | Dissolved |
| YANGTZEJIANG UNION CONSULTANCY COMPANY LIMITED | Private company limited by shares | Live |
| UNISPACE INVESTMENT LIMITED | Private company limited by shares | Dissolved |