Is an Australian bank and financial-services provider headquartered in Sydney. It is one of Australia's big four banks and is also the second-largest bank in New Zealand. As of November 2011, Westpac had 12.2 million customers, Australia's largest branch network with almost 1200 branches and a network with more than 2900 ATMs. The bank is Australia's second-largest bank by assets. The bank operates from its head quarters in Australia