| UNION SOCIETY OF CANTON, LIMITED | Public company limited by shares | Live |
| UNITED ASBESTO ORIENTAL AGENCY LTD -THE- | Private company limited by shares | Dissolved |
| UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION ESTATE & INVESTMENT CO. LTD -THE- | Private company limited by shares | Dissolved |
| UNION ENGINEERING CO. LTD. -THE- | Private company limited by shares | Dissolved |
| UNITED MOTOR COMPANY, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION TRADING COMPANY, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION PRINTING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION BANK OF CHINA LIMITED -THE- | Private company limited by shares | Dissolved |
| CHINESE SEAMEN'S UNION BANK, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNITED LAND INVESTMENT COMPANY, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION BANK, LIMITED | Private company limited by shares | Dissolved |
| UNITED POWERS COMPANY LIMITED -THE- | Private company limited by shares | Dissolved |
| UNITED PHOTOPLAY SERVICE LIMITED -THE- | Private company limited by shares | Dissolved |
| UNITED PUBLICITY & ADVERTISING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LEATHER ARTICLES COMPANY LIMITED | Private company limited by shares | Dissolved |
| OVERSEA UNION LIMITED | Private company limited by shares | Dissolved |
| UNION LIMITED | Private company limited by shares | Dissolved |
| UNION COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNITED ENTERPRISES, LIMITED | Private company limited by shares | Dissolved |
| UNION CYCLE MANUFACTURING CO., LTD -THE- | Private company limited by shares | Dissolved |
| UNION DISPENSARY LIMITED | Private company limited by shares | Dissolved |
| UNITED AMUSEMENTS, LIMITED | Private company limited by shares | Dissolved |
| UNION HOTEL LIMITED | Private company limited by shares | Dissolved |
| UNITED MANUFACTURERS TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED WEAVING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION TRADING COMPANY LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION BREWERY LIMITED | Public company limited by shares | Dissolved |
| UNION CERAMIC INDUSTRIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG MUSICIANS UNION LIMITED -THE- | Company limited by guarantee | Dissolved |
| UNILEVER HONG KONG LIMITED | Private company limited by shares | Live |
| UNITED CHINESE TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION INVESTMENT COMPANY LIMITED | Public company limited by shares | Dissolved |
| UNITED AGENCIES LIMITED | Private company limited by shares | Dissolved |
| UNION GENERAL COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION METAL WORKS, LIMITED | Private company limited by shares | Live |
| UNION MERCANTILE COMPANY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNITED LAUNDRIES LIMITED | Private company limited by shares | Dissolved |
| UNION STEAMSHIP COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNITED INSURANCE UNDERWRITERS LIMITED | Private company limited by shares | Live |
| UNION CHURCH, HANKOW. | Company limited by guarantee | Dissolved |
| CHINA UNION TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| MARITIME UNION ASSURANCE COMPANY LIMITED | Public company limited by shares | Dissolved |
| UNIVERSAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION ENTERPRISES, LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL TRADING COMPANY, LIMITED -THE- | Private company limited by shares | Live |
| CHINA UNION LINES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION SOUTH TRADING AND TRANSPORTATION COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL DEVELOPMENT CORPORATION LIMITED | Private company limited by shares | Dissolved |
| FAR EAST UNION TRADING COMPANY, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNICO ENTERPRISES, LIMITED | Private company limited by shares | Live |
| CHINA UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| AUSTRALASIAN HONG KONG UNION TRADING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNITED TRADE DEVELOPMENTS, LIMITED | Private company limited by shares | Dissolved |
| UNION BROTHERS LIMITED | Private company limited by shares | Dissolved |
| UNION HOUSE (KOWLOON) LIMITED | Private company limited by shares | Dissolved |
| UNITED CHINA TEXTILES LIMITED | Private company limited by shares | Dissolved |
| UNITED CHINESE INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION LINES (AGENCIES) LIMITED | Private company limited by shares | Dissolved |
| UNITED ASIA COMPANY, LIMITED | Private company limited by shares | Live |
| UNITED TRADING AND SHIPPING COMPANY, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNIVERSAL MERCANTILE COMPANY, LIMITED | Private company limited by shares | Live |
| UNITED DAIRIES LIMITED | Private company limited by shares | Dissolved |
| UNITED MERCHANDISING LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS COMPANY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION FILM ENTERPRISE, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNITED FRENCH FILM LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION LINES, LIMITED | Private company limited by shares | Dissolved |
| UNITED ENAMEL WORKS, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION DISPENSARY (KOWLOON) (1954) LIMITED | Private company limited by shares | Dissolved |
| UNION DISPENSARY (WANCHAI) (1954) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL UNDERWRITERS LIMITED | Private company limited by shares | Dissolved |
| UNION EGG CORPORATION LIMITED | Private company limited by shares | Live |
| UNION FORWARDING AGENCY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION STAR COMPANY, LIMITED | Private company limited by shares | Live |
| UNITED BUILDERS INSURANCE COMPANY, LIMITED | Private company limited by shares | Live |
| UNILEVER BESTFOODS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL INDUSTRIAL COMPANY, LIMITED | Private company limited by shares | Live |
| UNILIGHT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PUBLICITY & SERVICE, LIMITED | Private company limited by shares | Dissolved |
| UNION ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED DEALERS, LIMITED | Private company limited by shares | Dissolved |
| UNION HOSPITALS, LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL NAVIGATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| GRAND UNIVERSAL LAND INVESTMENT COMPANY, LIMITED -THE- | Private company limited by shares | Dissolved |
| UNITED OVERSEA ENTERPRISES, LIMITED | Private company limited by shares | Live |
| UNITED CHINESE SHIPPING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNITED PRODUCTS, LIMITED | Private company limited by shares | Dissolved |
| UNITED LEATHERS, LIMITED | Private company limited by shares | Dissolved |
| MALAYA UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION ICE CREAM FACTORY LIMITED -THE- | Private company limited by shares | Dissolved |
| BEN UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNITED SHIPPING AND INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SUPPLIERS, LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL DOCKYARD LIMITED | Private company limited by shares | Dissolved |
| UNION COTTON MILLS, LIMITED | Private company limited by shares | Dissolved |
| UNION CARBIDE ASIA LIMITED | Private company limited by shares | Live |