The biennial Australian International Airshow and Aerospace & Defence Exposition at Avalon comprises two separate, but concurrent, events – the Australian International Airshow and the Australian International Aerospace & Defence Exposition.

They are organised respectively by Aviation Development Australia Limited and Aerospace Australia Limited. The Avalon show alternates with the Pacific International Maritime Exposition, also presented biennially, during the intervening years at Darling Harbour, Sydney by their corporate affiliate, Maritime Australia Limited.

All are not-for-profit foundations, established to promote the development of Australia’s industrial, manufacturing and information/communications technology resources in the aviation, aerospace, maritime and defence sectors. They are members of a not-for-profit national group headed by Aerospace Maritime and Defence Foundation of Australia Limited.

The group’s members also pursue their respective corporate missions by promoting careers and skills in the aviation, aerospace, maritime and defence sectors through a national series of showcases and forums around Australia.