Westpac subsidiaries

Westpac Banking Corporation is one of Australia’s largest financial groups, managing several well-known banking brands. Below is the current information about Westpac’s subsidiaries and major shareholders as of 2025.

Which Banks Does Westpac Own?

Westpac owns several prominent Australian banks, including:

• St.George Bank — founded in 1937 and merged into Westpac in 2008, serving primarily New South Wales, the Australian Capital Territory, and other regions.
• BankSA — based in South Australia, became part of Westpac through the St.George merger in 2008.
• Bank of Melbourne — acquired by Westpac in 1997, rebranded in 2002, and relaunched in 2011 to serve customers in Victoria.
• BT Financial Group — offers investment, wealth management, and insurance services as part of Westpac Group.
• RAMS — a mortgage lending brand acquired by Westpac in 2007.

These subsidiaries operate under their own brands but are part of the Westpac Group, providing a wide range of financial services across Australia.

Who Owns Westpac?

The largest shareholders of Westpac are major institutional investors, including:

• HSBC Custody Nominees (Australia) Limited — the largest registered shareholder with a significant stake.
• Citicorp Nominees Pty Limited — another major institutional investor.
• JPMorgan Nominees Australia Limited — a key shareholder in Westpac’s ownership structure.

These ownership details are based on Westpac’s public financial disclosures. For the most current shareholder information, visit the Westpac Investor Centre.