Big 4 Banks in Australia

Provider Branch Founded Ownership
Westpac Westpac 1270 1817 Local
CBA CBA 1026 1912 Local
ANZ ANZ 800 1835 Local
NAB NAB 748 1858 Local

In Australia, the largest banks in Australia, Commonwealth Bank, Westpac, NAB and ANZ control over 80% of loan market share in Australia. CBA as the largest retail bank in Australia has the largest market share among the 4. Each big bank is a leader in various bank products with CBA a market leader in retail banking, ANZ in institutional banking, NAB in business banking and Westpac in transactional banking.