About Us

Space Industry Association of Australia (SIAA) is the national peak body for the space industry in Australia. Founded in 1992, SIAA and its member companies work closely with Australian governments, international partners, academia, and industry to advance Australia’s space industry and economy. SIAA hosted the 68th International Astronautical Congress in Adelaide, Australia in 2017, where the Australian Space Agency was first announced. This year SIAA is the proud host of the 76th International Astronautical Congress (IAC) in Sydney, Australia from 29 September to 3 October 2025 at the ICC Sydney. The 76th International Astronautical Congress is an initiative of the International Astronautical Federation (IAF), which hosted its first Congress in 1950. IAC 2025 Sydney is proudly hosted by the Space Industry Association of Australia (SIAA) and co-hosted by the NSW Government and the Australian Space Agency. It is supported by the International Academy of Astronautics (IAA), the International Institute of Space Law (IISL) and the Space Generation Advisory Council (SGAC), which contribute to Congress through dedicated events and symposia. Australia has hosted the IAC twice in its 75-year history – initially with the 49th IAC 1998 in Melbourne, then the 68th IAC 2017 in Adelaide. Hosting a third time with the 76th IAC 2025 in Sydney from 29 September to 3 October 2025 is a generational opportunity to showcase to all Australians – and the world – the rapid progress of Australia’s space industry and how space-enabled services are fundamental to Australia’s way of life. The theme of IAC 2025 in Sydney is “Sustainable Space:Resilient Earth” as a backdrop to space-based applications for Earth; sustainable Space activities; and sustaining life off Earth. Key focus areas include: showcasing the Indo-Pacific region; engaging a broad range of space-adjacent industries; inspiring and engaging our next generation’s space workforce; and educating the community about ‘why space matters’ with fun events for all ages through the IAC’s open-to-everyone Space Festival on 3 October 2025.