B&E Ltd – Australia’s oldest building society founded in 1870. B&E is a leading Tasmanian financial institution with over 30,000 customers and $728 million in assets.

Big Sky Building Society – A subsidiary of Australian Unity Limited.

Greater Building Society was one of the largest building societies in Australia with over 250,000 members and around 70 branches across NSW and South East Queensland. The company changed its name to Greater Bank in 2016.

Heritage Building Society was Australia's biggest building society with operations primarily in Queensland. The company changed its name to Heritage Bank in 2011.

Hume Building Society was established in 1955 and is based in Albury, New South Wales. The company changed its name to Hume Bank in 2014.

Illawarra Mutual Building (IMB) Society was one of largest building societies with approximately $5.0 billion in total assets and more than 180,000 clients. The company was founded in 1880 and is based in Wollongong, New South Wales. IMB became a mutual bank in August 2015.

Lifeplan Australia Building Society was combined with Big Sky Credit Union on 1 March 2012. The combined entity now operates as Big Sky Building Society.

Maitland Mutual Building Society – Regionally based Building Society that has been serving community since 1888. It maintains branch network at Maitland, East Maitland, Rutherford and Raymond Terrace, New South Wales.

Newcastle Permanent Building Society – The largest building society in Australia with more than 320,000 customers, 70 branches, 100 ATMs and approximately 900 employees.

The Rock Building Society – A subsidiary of MyState Limited, a national financial services group headquartered in Hobart, Tasmania.

Wide Bay Australia was the largest building society in Queensland. It was converted to Auswide Bank Ltd in 2015.

Former building societies in Australia

ABS Building Society

First Australian Building Society

Heritage Building Society

Perth Building Society

Pyramid Building Society

RESI Permanent Building Society

Statewide Building Society