American Express, commonly known as AMEX, is a multinational financial services corporation headquartered in New York.
AMEX is the world’s largest credit card issuer by purchase volume. Alongside AMEX credit cards, the company provides personal financial products such as travellers’ cheques, as well as business and corporate financial services.
American Express has a corporate office in Sydney and various currency exchanges around Australia, but no dedicated customer service branches. ATM access is available through AMEX’s network of partner ATMs.