| Amba Limited | Private company limited by shares | Live |
| AMBA FASHIONS LIMITED | Private company limited by shares | Dissolved |
| AMBA GEAR LIMITED | Private company limited by shares | Live |
| AMBAC LIMITED | Private company limited by shares | Dissolved |
| AMBAC (ASIA) LIMITED | Private company limited by shares | Live |
| AMBANI CAPITAL GROUP LIMITED | Private company limited by shares | Live |
| AMBAR LIMITED | Private company limited by shares | Dissolved |
| Lucky Ambar Enterprises Limited | Private company limited by shares | Live |
| Ambarella Limited | Private company limited by shares | Live |
| AMBARITA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ambark Digital Limited | | Live |
| Les Ambassadeurs Limited | Private company limited by shares | Live |
| AMBASSADOR 2000 LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR AMUSEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR ARTS AND CLOTHING LIMITED | Private company limited by shares | Dissolved |
| ACE AMBASSADOR ASIA LIMITED | Private company limited by shares | Live |
| AMBASSADOR ASSEMBLY LIMITED | Company limited by guarantee | Live |
| BEAUTY AMBASSADOR COMPANY LIMITED | Private company limited by shares | Dissolved |
| Brand Ambassador Limited | Private company limited by shares | Live |
| SINO-FOREIGN BRAND IMAGE AMBASSADOR COMPETITION LIMITED | Private company limited by shares | Live |
| AMBASSADOR INTERNATIONAL CHURCH LIMITED | Company limited by guarantee | Live |
| AMBASSADOR OF CULTURAL EXCHANGE (INTERNATIONAL) PROMOTION CO., LIMITED | Private company limited by shares | Dissolved |
| International Tourism Image Ambassador Event Co., Limited | | Live |
| World Cultural Tourism Ambassador International Tournament Co., Limited | Private company limited by shares | Live |
| World Rural Travel Ambassador International Events Co., Limited | | Live |
| AMBASSADOR CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| World Cultural Tourism Ambassador International Contest Limited | Private company limited by shares | Live |
| AMBASSADOR COSMETIC COMPANY, LIMITED | Private company limited by shares | Dissolved |
| World Cultural Tourism Ambassador International Events Limited | | Live |
| Ambassador Enterprises Limited | Private company limited by shares | Dissolved |
| AMBASSADOR CATERING ENTERPRISES LIMITED | Private company limited by shares | Live |
| GLOBAL DIGITAL AMBASSADOR LIMITED | Private company limited by shares | Live |
| AMBASSADOR GLOBAL GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| GLOBAL LEISURE TOURISM IMAGE AMBASSADOR INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| HONG KONG BRAND AMBASSADOR ASSOCIATION LIMITED | | Live |
| HONG KONG BRAND AMBASSADOR COMPANY LIMITED | | Live |
| Ambassador International Freight (Hong Kong) Company Limited | | Live |
| AMBASSADOR INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Ambassador Luggage Co. Limited | Private company limited by shares | Live |
| SINO TRAVELING IMAGE AMBASSADOR INTERNATIONAL COMPETITION LIMITED | Private company limited by shares | Live |
| World Tourism Cultural Image Ambassador International Events Limited | | Live |
| GLOBAL INTERNATIONAL TOURISM IMAGE AMBASSADOR MATCH LIMITED | Private company limited by shares | Dissolved |
| WORLD TOURISM IMAGE AMBASSADOR INTERNATIONAL EVENTS LIMITED | | Live |
| AMBASSADOR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Sac Ambassador International Limited | Private company limited by shares | Live |
| AMBASSADOR INVESTMENTS (HK) LIMITED | Private company limited by shares | Dissolved |
| World Cultural Tourism Ambassador International Event Management Co., Limited | | Live |
| AMBASSADOR HOTEL&RESORT (HONGKONG) MANAGEMENT CO., LIMITED -THE- | Private company limited by shares | Live |
| International Tourism Image Ambassador Competition (HK) Management Limited | Private company limited by shares | Live |
| WORLD LEISURE TRAVELS AMBASSADOR EVENT MANAGEMENT LIMITED | Private company limited by shares | Live |
| AMBASSADOR OVERSEAS INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR RESORTS LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR RESTAURANT LIMITED | Private company limited by shares | Dissolved |
| Ambassador Restaurant Company Limited | Private company limited by shares | Live |
| AMBASSADOR EAST OCEAN RESTAURANT LIMITED | Private company limited by shares | Live |
| SHANGHAI AMBASSADOR BEAUTY PARLOUR LIMITED | Private company limited by shares | Dissolved |
| EQ AMBASSADOR SOCIETY LIMITED | Company limited by guarantee | Live |
| AMBASSADOR WINE & SPIRIT COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR TEXTILES LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR EXPRESS & TOUR SERVICE (H.K.) LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR TRAVEL BUREAU LIMITED | Private company limited by shares | Dissolved |
| AMBASSADOR GROUP TRAVEL CO., LIMITED | Private company limited by shares | Live |
| Universal Ambassador Limited | Private company limited by shares | Live |
| Ambassadors in Education Limited | Private company limited by shares | Live |
| HONG KONG AMBASSADORS OF DESIGN LIMITED | Company limited by guarantee | Live |
| HONG KONG SPIRIT AMBASSADORS LIMITED | Company limited by guarantee | Live |
| AMBASSDOR LIMITED | Private company limited by shares | Dissolved |
| AMBATCH SYSTEMS LIMITED | Private company limited by shares | Live |
| AMBATONDRAZAKA LIMITED | Private company limited by shares | Dissolved |
| AMBAWARE PRODUCTS LIMITED | Private company limited by shares | Dissolved |