| UNION PACIFIC NAVIGATION COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION NTC (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION (V-TEX) SHIRT FACTORY LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION TRADERS, LIMITED -THE- | Private company limited by shares | Dissolved |
| SAMSUN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION TAXICAB COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION BRAS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION (OVERSEAS) SERVICE LIMITED | Private company limited by shares | Dissolved |
| UNION METAL CHAINS MANUFACTORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION KNITTING FACTORY COMPANY LIMITED | Private company limited by shares | Live |
| UNION NOODLES AND PASTRIES MANUFACTORY, LIMITED | Private company limited by shares | Dissolved |
| UNION SPINNING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PALLET AND ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION HOP KEE COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMERICAN UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION PAPER BOX AND PRINTING PRESS, LIMITED | Private company limited by shares | Live |
| UNION (INTERNATIONAL) METALWARE MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION MARINE INVESTMENT CORPORATION LIMITED | Private company limited by shares | Dissolved |
| EAST UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION RESTAURANT LIMITED | Private company limited by shares | Dissolved |
| NATIONAL UNION CORPORATION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| PLASTIC UNION MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TRI - UNION PLASTIC FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION ELECTRONICS MANUFACTURING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| GENERAL UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION SHIPPING & ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION KNITWEAR MANUFACTORY, LIMITED | Private company limited by shares | Dissolved |
| UNION MOTORCARS (SERVICE) LIMITED | Private company limited by shares | Dissolved |
| EASTERN UNION INVESTMENT CORPORATION, LIMITED | Private company limited by shares | Dissolved |
| UNION DYCASTING LIMITED | Private company limited by shares | Dissolved |
| UNION GLOVE MANUFACTURERS LIMITED | Private company limited by shares | Dissolved |
| FREEDOM & UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL VINYLS COMPANY LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION INVESTMENT CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION ESTATE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION ARTS GARMENT FACTORY LIMITED | Private company limited by shares | Live |
| NEW TERRITORIES UNION ENTERPRISES, LIMITED | Private company limited by shares | Live |
| UNION TIMBER ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION ENGINEERING SERVICES LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION EXIMPO LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION COURT LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNION TRANSPORTATION & GODOWN COMPANY LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION INDUSTRIAL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| FABER UNION (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SOUTHERN UNION SHIPPING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION CATHAY TEXTILE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION PAPER & CARTON GLAZING CONVERTERS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SALES COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TRAVEL SERVICE LIMITED | Private company limited by shares | Dissolved |
| UNION ASSOCIATION LIMITED | Company limited by guarantee | Live |
| UNION RECHERCHE D'OUTRE-MER LIMITED | Private company limited by shares | Dissolved |
| UNION HANDWEARS INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION TIMBER (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL UNION PRODUCTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOP KEE TRI UNION INDUSTRIAL COMPANY, LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION ENTERPRISES (H.K.) CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION SHIPPING COMPANY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION HIP KEE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MARITIME ENGINEERS LIMITED | Private company limited by shares | Dissolved |
| EASTERN UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION OVERSEA DEVELOPMENT CORPORATION LIMITED | Private company limited by shares | Dissolved |
| EURAFRISIA UNION COMPANY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SEA UNION KNITTING & GARMENTS FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION LUEN CHEONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION W. E. I. METAL PLASTIC FACTORY, LIMITED | Private company limited by shares | Dissolved |
| UNION AGENCY SERVICE (KOWLOON) LIMITED | Private company limited by shares | Dissolved |
| WESTERN DISTRICT UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SCRIPTURE UNION OF HONG KONG LIMITED | Company limited by guarantee | Live |
| UNION AIR CARGO FORWARDERS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| OVERSEAS UNION IMPORT & EXPORT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION DOLLS MANUFACTURER & COMPANY LIMITED | Private company limited by shares | Dissolved |
| FAR UNION LIMITED | Private company limited by shares | Dissolved |
| UNION DEAN LIMITED | Private company limited by shares | Dissolved |
| UNION SPECIAL FAR EAST LIMITED | Private company limited by shares | Dissolved |
| CHINESE UNION REAL ESTATE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION GENERAL DELIVERY SERVICE LIMITED | Private company limited by shares | Dissolved |
| UNION WORLDWIDE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION WATERBOAT COMPANY (1972) LIMITED | Private company limited by shares | Live |
| EVER UNION INDUSTRIAL COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION ELECTRIC WORKS COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION FILM LABORATORY, LIMITED | Private company limited by shares | Live |
| OLYMPIC UNION FINANCE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL UNION ENTERPRISES 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 |
| GLORY UNION INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION COMMERCIAL AND INDUSTRIAL SECURITY SERVICES LIMITED | Private company limited by shares | Dissolved |
| DAIICHI UNION INVESTMENT 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 |
| UNION FILM DISTRIBUTORS LIMITED | Private company limited by shares | Dissolved |
| TSING YI UNION LAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MARINE (HONG KONG) 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 |
| UNION WATCH CASE FACTORY LIMITED | Private company limited by shares | Dissolved |