| UNISON PLASTIC MANUFACTORY LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION ELECTRIC WORKS COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNIWELL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION FILM LABORATORY, LIMITED | Private company limited by shares | Live |
| UNI-INVESTORS LIMITED | Private company limited by shares | Dissolved |
| UNILINGTON COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITECH INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNITED FAIR AGENCIES LIMITED | Private company limited by shares | Dissolved |
| ALUMNI OF TAIWAN UNIVERSITIES AND COLLEGES (HONG KONG) ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| OLYMPIC UNION FINANCE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL LEATHERWARES LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PUBLIC RELATIONS LIMITED | Private company limited by shares | Dissolved |
| UNIQUE PRODUCTS AGENCY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL P.V.C. & WINYL TOYS MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOPE UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION ORIENTAL DEVELOPMENT (HOLDING) LIMITED | Private company limited by shares | Dissolved |
| OVERSEAS UNION REALTY LIMITED | Private company limited by shares | Dissolved |
| UNITED RESTAURANT AND BAR LIMITED | Private company limited by shares | Dissolved |
| UNIFAB-TEXTILE LIMITED | Private company limited by shares | Dissolved |
| UNIASIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL UNIVERSAL CHEMICALS COMPANY LIMITED | Private company limited by shares | Dissolved |
| United Wealth Finance Limited | Private company limited by shares | Dissolved |
| GLORY UNION INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-RICH INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| KAR WOO UNITED COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| INTER UNIC CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION COMMERCIAL AND INDUSTRIAL SECURITY SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNITED EQUITY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIMATRICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNISOURCE, LIMITED | Private company limited by shares | Dissolved |
| DAIICHI UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED MINERALS AND METALS LIMITED | Private company limited by shares | Dissolved |
| UNI-IMPORTERS LIMITED | Private company limited by shares | Dissolved |
| UNITAI HONG KONG LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNION MARITIME COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION HING YIP LIMITED | Private company limited by shares | Live |
| UNISTOCK FINANCE LIMITED | Private company limited by shares | Dissolved |
| UNION FILM DISTRIBUTORS LIMITED | Private company limited by shares | Dissolved |
| TSING YI UNION LAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| SININE UNITED COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL WINES AND FOODS LIMITED | Private company limited by shares | Live |
| UNIQUE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNIVERSAL FILM AND ADVERTISING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MARINE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL WELFARE CO-OPERATION ASSOCIATION, LIMITED | Company limited by guarantee | Dissolved |
| UNIVERSAL AMUSEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITANKERS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ASIA CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| UNION CLOTHS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION COMMODITIES BROKERS TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED CONSOLIDATION AND TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNISON GODOWN LIMITED | Private company limited by shares | Dissolved |
| CHINA UNIQUE SYNDICATE, LIMITED | Private company limited by shares | Dissolved |
| UNIAFRICO (H. K.) LIMITED | Private company limited by shares | Dissolved |
| NEW UNIVERSAL PLASTIC AND METALWARE MANUFACTORY LIMITED | Private company limited by shares | Live |
| UNION WATCH CASE FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNITED CALIFORNIA LIMITED | Private company limited by shares | Dissolved |
| UNION SIZING MILL LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNITY LIMITED | Private company limited by shares | Dissolved |
| EMIRATES UNION FINANCE LIMITED | Private company limited by shares | Dissolved |
| UNIDEN HONG KONG LIMITED | Private company limited by shares | Live |
| UNION CREATIVE SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNION NGOK KEE ELECTRICAL MANUFACTURING LIMITED | Private company limited by shares | Live |
| UNITED UMBRELLA WORKS LIMITED | Private company limited by shares | Dissolved |
| UNILEX LIMITED | Private company limited by shares | Dissolved |
| UNION WAI KEE METAL WORKS FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNICUS LIMITED | Private company limited by shares | Dissolved |
| YAN TAK UNION (1974) COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CONSUMERS ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| UNITED ORIENT LINES LIMITED | Private company limited by shares | Dissolved |
| UNION SILK SCREEN PRINTING LIMITED -THE- | Private company limited by shares | Dissolved |
| UNIKET LIMITED | Private company limited by shares | Dissolved |
| UNION STATIONERY COMPANY LIMITED | Private company limited by shares | Live |
| UNICENTRAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE WATCH TRADING COMPANY, LIMITED | Private company limited by shares | Live |
| METRO UNIT FURNITURE LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION LIFE ASSURANCE LIMITED | Private company limited by shares | Dissolved |
| UNITED FRIENDLY INSURANCE COMPANY, LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| JOLIN UNICORP LIMITED | Private company limited by shares | Dissolved |
| UNITED FRIENDLY SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNION SHIPMANAGEMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL HOUSING SYSTEMS (S.E.A.) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL LEASING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIWOOD LIMITED | Private company limited by shares | Dissolved |
| UNIDOOR (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIVENTA LIMITED | Private company limited by shares | Dissolved |
| FOREVER UNION LIMITED | Private company limited by shares | Dissolved |
| UNI-PAN TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION GOODRICH IMPORT EXPORT COMPANY LIMITED | Private company limited by shares | Dissolved |
| KWAI UNION PUBLIC LIGHT BUS ASSOCIATION LIMITED | Company limited by guarantee | Live |
| UNION HEAPSON LUGGAGE CO., LIMITED | Private company limited by shares | Dissolved |
| SOLE UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNICHEM ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| KING'S UNION MARINE LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| HONG KONG CANOE UNION LIMITED -THE- | Company limited by guarantee | Live |