Westpac Banking Corporation, commonly known as Westpac, is an Australian bank and financial services provider headquartered at Westpac Place in Sydney. It was established in 1817 as the Bank of New South Wales and on May 4, 1982 merged with the Commercial Bank of Australia (founded in 1866), becoming the Westpac Banking Corporation in October the same year. 

In 1861 the Bank of New South Wales opened seven branches in New Zealand. Currently, Westpac NZ offers a full-service with around 1.5 million customers, 3,000 shareholders and 197 branches nationwide. 

It is the dominant provider of banking services to small to medium business, corporate and institutional organisations, and is the banker of the New Zealand government. It currently is the second largest bank in New Zealand, after the merger of ANZ and National Bank of New Zealand.

 

In August 2014, Westpac NZ announced that it would be releasing the world's first augmented bank app.

 

Its customers will be able to use augmented reality and its 3D imagery to check their credit and debit card balances, see their last five transactions, spend locations, categorise spending over a five-week period and get alerts when payments are due, they can also make payments, check their hotpoints (the bank’s rewards program) balance and find the nearest Westpac branch or ATM. The locator will also work internationally to find an ATM Global Alliance machine.

According to cio.com & wikipedia