| UNISPEED ASIA LIMITED | Private company limited by shares | Dissolved |
| UNIX TIMBER LIMITED | Private company limited by shares | Dissolved |
| MILLION UNION LIMITED | Private company limited by shares | Live |
| UNION TRENOMICS LIMITED | Private company limited by shares | Dissolved |
| UNI-SHANGHAI WOOLTEX LIMITED | Private company limited by shares | Dissolved |
| MOUNT UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVER LIMITED | Private company limited by shares | Live |
| UNION BUILDING MATERIAL SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| UNICOAST COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PLASTIC FACTORY LIMITED | Private company limited by shares | Live |
| UNIGULF SHIPMANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL MARINE SHOT-BLAST COMPANY LIMITED | Private company limited by shares | Dissolved |
| LINK UNION LIMITED | Private company limited by shares | Dissolved |
| UNIGROWTH COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED CENTRAL CONTRACTORS LIMITED | Private company limited by shares | Dissolved |
| UNION WAYS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION GAIN LIMITED | Private company limited by shares | Dissolved |
| UNION BEST LIMITED | Private company limited by shares | Dissolved |
| UNI-ALPHA FUTURES LIMITED | Private company limited by shares | Dissolved |
| RICH UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SECURITY COMPANY LIMITED | Private company limited by shares | Live |
| UNION CENTRE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE SANITAIR SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| UNION MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| LEAD UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CITY LIMITED | Private company limited by shares | Dissolved |
| UNIWEL LAND DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| YOUNG UNION LIMITED | Private company limited by shares | Live |
| UNIMAS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNISTO LIMITED | Private company limited by shares | Live |
| JET UNION TRAVEL AGENCY LIMITED | Private company limited by shares | Dissolved |
| UNITED DO LESUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| COMPUTER UNITY LIMITED | Private company limited by shares | Dissolved |
| UNITRANS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION ORGANIZATION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIBURG INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITECKO COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIPOLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION BROTHERS FUR LIMITED | Private company limited by shares | Live |
| UNION LUCK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIWEL KNITWEAR MANUFACTURING COMPANY LIMITED | Private company limited by shares | Live |
| UNITED SHOE TRADING LIMITED | Private company limited by shares | Live |
| YUEN LONG FRESH MEAT UNITED ASSOCIATION COMPANY LIMITED | Company limited by guarantee | Live |
| OVERSEA CHINESE UNION AGENCY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED SUCCESS COMPANY LIMITED | Private company limited by shares | Live |
| UNISTOCK LIMITED | Private company limited by shares | Dissolved |
| PERMANENT UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE-RIGHTS MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED ARTIST PHOTOGRAPHIC ASSOCIATION LIMITED | Company limited by guarantee | Live |
| UNI-KING COMPANY LIMITED | Private company limited by shares | Dissolved |
| PARRY UNION ENGINEERING AND CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ENERGY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION TAXI & P.L.B. LIMITED | Private company limited by shares | Live |
| THAMES UNION (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CAMERA COMPANY LIMITED | Private company limited by shares | Dissolved |
| LOY LEE PO UNIVERSAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL DISTRIBUTION CORP. LIMITED | Private company limited by shares | Dissolved |
| UNITED AFCO COMPANY LIMITED | Private company limited by shares | Live |
| UNION PHOTO SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| PLAN UNION LIMITED | Private company limited by shares | Dissolved |
| UNITANG CONTRACTORS LIMITED | Private company limited by shares | Live Commenced dormancy on 09-Oct-2009 |
| UNITAS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION LEATHER WARE HANDBAGS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED LOTTO COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED VENTURE LIMITED | Private company limited by shares | Dissolved |
| UNITS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL JEWELLERY DESIGN CENTER LIMITED | Private company limited by shares | Live |
| UNIWEST COMPUTER COMPONENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| WELL HONG (UNION) CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| REPUBLIC UNION OF BURMA TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITOURS LIMITED | Private company limited by shares | Live |
| UNION SQUARE INDUSTRIAL AND COMMERCIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNISOURCE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL LEAF (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIPEAK COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MOULDING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSITY GRADUATE TEACHERS ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| UNIMAX TOYS LIMITED | Private company limited by shares | Live |
| UNION SILK EXPORT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIFIT COMPANY LIMITED | Private company limited by shares | Dissolved |
| MDS UNITED COMPANY LIMITED | Private company limited by shares | Dissolved |
| BROAD UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION HYDROCARBON COMPANY LIMITED | Private company limited by shares | Dissolved |
| Brand Union Limited -The- | Private company limited by shares | Live |
| SELF UNION LIMITED | Private company limited by shares | Dissolved |
| BEIJING UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| WISE UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIEXPO ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNISON ALUMINIUM ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| UNICO TEXTILES LIMITED | Private company limited by shares | Dissolved |
| UNILUX COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL WEBBING ACCESSORIES LIMITED | Private company limited by shares | Dissolved |
| UNITED INTEREST LIMITED -THE- | Private company limited by shares | Dissolved |
| UNITED AQUARIUM SUPPLY COMPANY LIMITED | Private company limited by shares | Live |
| CHINA UNITED SHIPBUILDING COMPANY LIMITED | Private company limited by shares | Live |
| UNIFICATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-BRIGHT COTTON TRADING LIMITED | Private company limited by shares | Live |
| UNION TERMINALS LIMITED | Private company limited by shares | Dissolved |
| CHINA UNITED WHOLESALERS LIMITED | Private company limited by shares | Dissolved |
| FRIENDS OF CAMBRIDGE UNIVERSITY IN HONG KONG LIMITED -THE- | Company limited by guarantee | Live |