| HK SOUTH AMERICAN TRADING LIMITED | Private company limited by shares | Live |
| AMERICAN SPORTSWEAR TRADING COMPANY LIMITED | Private company limited by shares | Live |
| American Power Train China Shares Limited | Private company limited by shares | Live |
| American Power Train Limited | Private company limited by shares | Live |
| AMERICAN TRANSPACIFIC INVESTMENTS, LIMITED | Private company limited by shares | Dissolved |
| AMERICAN AIR TRAVEL LIMITED | Private company limited by shares | Dissolved |
| AMERICAN TREASURE COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMERICAN TREASURE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| AMERICAN TREASURE PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| AMERICAN TURQUOISE COMPANY LIMITED | Private company limited by shares | Live |
| AMERICAN UNITED FINANCE LIMITED | Private company limited by shares | Dissolved |
| UNITED AMERICAN INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| AMERICAN UNITED PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| AMERICAN UNITED PROPERTIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMERICAN VALVE & CONTROLS LIMITED | Private company limited by shares | Live |
| AMERICAN WATS VALVE GROUP ASIA LIMITED | Private company limited by shares | Live |
| AMERICAN INDUSTRY VALVE ASIA LIMITED | Private company limited by shares | Live |
| AMERICAN VENDING SERVICE LIMITED | Private company limited by shares | Dissolved |
| AMERICAN WATCH LIMITED | Private company limited by shares | Dissolved |
| WESTERN AMERICAN FOODS LIMITED | Private company limited by shares | Live |
| AMERICAN WILSON FINANCE LIMITED | Private company limited by shares | Live |
| AMERICAN WILSON TOBACCO COMPANY LIMITED | Private company limited by shares | Dissolved |
| American Power Soda Wine Co., Limited | Private company limited by shares | Live |
| PAN AMERICAN WIRE AND CABLE LIMITED | Private company limited by shares | Dissolved |
| AMERICAN WOMEN'S ASSOCIATION OF HONG KONG LIMITED -THE- | Company limited by guarantee | Live |
| AMERICAN WOODPECKER SPORTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| American English Workshop Limited | Private company limited by shares | Live |
| AMERICAN WRIGHT.HONEYWELL GROUP LIMITED | Private company limited by shares | Dissolved |
| AMERICAN WRIGHT.HONEYWELL GROUP LIMITED | Private company limited by shares | Live |
| American Zeka Limited | | Live |
| Zhongjian American Limited | Private company limited by shares | Live |
| Beauty Americana (Investment) Company Limited | Private company limited by shares | Live |
| AMERICANA DRINKS LIMITED | Private company limited by shares | Dissolved |
| AMERICANADA ENERGY INC. LIMITED | Private company limited by shares | Dissolved |
| AMERICAN-ASIAN GROUP INVESTMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| Americano Commercial Trading Limited | Private company limited by shares | Live |
| Americanos Limited | Private company limited by shares | Live |
| YOUNG AMERICANS LIMITED | Private company limited by shares | Dissolved |
| American-seattle Biotechnology Limited | Private company limited by shares | Live |