| TAKE UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| N.T. UNION X-RAY & LABORATORY COMPANY LIMITED -THE- | Private company limited by shares | Live |
| UNION KCAWY LIMITED | Private company limited by shares | Dissolved |
| UNIFIED FINANCE LIMITED | Private company limited by shares | Dissolved |
| FITTEX GARMENTS & UNDERWEARS FACTORY, LIMITED | Private company limited by shares | Dissolved |
| NEW UNIVERSAL DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| UNION SQUARE PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION DYEING WORKS LIMITED | Private company limited by shares | Live |
| UNION FORT DEVELOPMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| TAJIMA UNION EMBROIDERY SERVICE LIMITED | Private company limited by shares | Dissolved |
| UNION WATCH CASE FACTORY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIGATE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PIANO COMPANY LIMITED | Private company limited by shares | Dissolved |
| LIEN UNITED A-P LIMITED | Private company limited by shares | Live |
| UNIPROFIT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PRINTED CIRCUIT COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL ASSET LIMITED | Private company limited by shares | Dissolved |
| UNIFIED INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAY SUN UNDERWEAR FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNIFUND LIMITED | Private company limited by shares | Live |
| ISLAMIC UNION OF HONG KONG -THE- | Company limited by guarantee | Live |
| UNITED LABEL-TRADE LIMITED -THE- | Private company limited by shares | Live |
| KING UNION COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNIDRAY COMPANY LIMITED | Private company limited by shares | Dissolved |
| H.K.C.P. UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIBEST NOMINEE LIMITED | Private company limited by shares | Dissolved |
| UNIGOOD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| METTLE UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNITED AFRICAN INSURANCE BROKERS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CAN LIMITED | Private company limited by shares | Dissolved |
| TWIN UNIVERSE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNI-FLEX LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT LIMITED | Private company limited by shares | Dissolved |
| UNIDIAM LIMITED | Private company limited by shares | Dissolved |
| UNITY GAIN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITY ENLARGE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| KENNEDY UNITED LIMITED | Private company limited by shares | Dissolved |
| UNLIMITED GAIN LIMITED | Private company limited by shares | Live |
| UNIPACIFIC FINANCE (INTERNATIONALE) LIMITED | Private company limited by shares | Dissolved |
| UNISPEED ASIA LIMITED | Private company limited by shares | Dissolved |
| AUSTENS UNDERWRITING AGENCIES (HONG KONG) 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 |
| UNCHALLENGEABLE LIMITED -THE- | 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 |
| UNEARTH GOLD COMPANY 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 |