Bank of Melbourne is a financial institution operating in Victoria, Australia. A subsidiary of the Westpac Group, it was re-established as a separate entity, and re-commenced operations on 25 July 2011. The "new" Bank of Melbourne initially rebadged the Victorian business of St.George Bank, another wholly owned subsidiary of Westpac, as part of a major local branding strategy. The customer-facing activities of the business operate independently of the Westpac Group. Westpac has owned Bank of Melbourne, and the rights to the brand, since its acquisition of the bank in 1997.

"Bank of South Australia" redirects here. For the earlier unconnected business with the same name, see Bank of South Australia (1837). BankSA, formerly known as the Bank of South Australia, the State Bank of South Australia and the Savings Bank of South Australia is the largest bank in South Australia. It is a subsidiary of Westpac.

BankVic is an Australian member-owned mutual bank. It was founded as the Police Association Credit Co Operative, commonly known as Police Credit or Police Credit Co-Op, by police officers in 1974 as a credit union. On 1 June 2013, Police Credit became BankVic (Police Financial Services Limited). It now serves police and other emergency services employees, people in the health industry and other public servants, as well as their families and friends.

Beyond Bank is an Australian customer-owned bank operating in South Australia, the Australian Capital Territory, Western Australia and New South Wales. It provides financial services to its members including savings and business accounts, term deposits, loans, insurance and financial planning, and has total assets under management of more than $5 billion. It is a certified B Corp.

Greater Bank is an Australian customer-owned bank and mutual financial institution with headquarters in Hamilton, New South Wales. The bank was previously known as the Greater Building Society, or simply "The Greater”, and provides services to customers in New South Wales and southeast Queensland through branches, mobile lenders, its own ATM network, access to the Westpac ATM network,[1] Internet and mobile banking, and a Newcastle-based customer service call centre.

Heritage Bank Limited is Australia's second largest mutual bank. Its head office is located in Toowoomba, Queensland. The bank has over 50 branches in southern Queensland and New South Wales and sells home loans via a network of mortgage brokers in every state and territory in Australia. The bank's customer contact centre is also based in Toowoomba, Queensland. Heritage Bank Limited is a mutual bank which is owned by its members, not by shareholders. Heritage is also a member of the Customer Owned Banking Association (COBA)

Hume Bank, previously Hume Building Society, is a customer-owned bank which operates primarily in retail banking. Hume has an extensive branch and ATM network, and employs over 140 staff. In 2017 Hume’s customer base reached 61,504 and its assets stood at A$1.10bn. Hume Bank uses local suppliers and businesses to support important economic activity in the region, and offers exclusive workplace packages to employees of local businesses. Hume Bank's Chief Executive Officer is Stephen Capello (June 2018), its chairman Tony Whiting (November 2016)

IMB is the longest standing building society in New South Wales and the third largest building society in Australia in terms of assets under management. IMB was established in 1880 as Illawarra Mutual Building Society and is headquartered in Wollongong, New South Wales. IMB has branches in New South Wales, Victoria and the ACT. IMB is regulated by the Australian Prudential Regulation Authority, and is a member of COBA, an independent organisation representing building societies and credit unions.

ME Bank, also known as ME, is an Australian direct bank based in Melbourne. ME Bank no longer has no branches in Sydney, Brisbane, Adelaide, Perth, Hobart, Canberra and Darwin MEBank branchless. It became a subsidiary of Bank of Queensland in July 2021. Founded in 1994 as Super Member Home Loans (SMHL) by Australia's industry superannuation funds, SMHL became Members Equity Bank in 1999, and received a banking licence from the Australian Prudential Regulatory Authority (APRA) in July 2001 and was approved by APRA to act as an authorised deposit-taking institution, authorised to accept deposits from the public.

MyState Limited is an Australian financial group, headquartered in Hobart, Tasmania. It formed in 2009 following the merger of the Tasmanian Perpetual Trustees and MyState Financial. In 2011 it further purchased the Queensland-based Rock Building Society for $68.3 million AUD. In October 2014, its largest section, MyState Financial received authorisation from the Australian Prudential Regulation Authority to rename itself to MyState Bank.