The Parliamentary and Government Branch would like to express its thanks to the people and organisations that contributed their knowledge and expertise to each edition of Australian Flags:
- Aboriginal and Torres Strait Islander Commission
- Australian Border Force
- Australian Defence Force
- Australian Federal Police
- Australian Institute of Aboriginal and Torres Strait Islander Studies
- Australian Maritime Safety Authority
- Australian Olympic Committee
- Australian War Memorial
- Ballarat Fine Art Gallery
- Christmas Island Shire Council
- Cocos (Keeling) Islands Shire Council
- Mr Harold Thomas
- Mr John Vaughan, Vexillographer
- National Archives of Australia
- National Library of Australia
- National Indigenous Australians Agency
- Norfolk Island Government
- Office of the Administrator of the Indian Ocean Territories
- Offices of State Governors
- Queen Victoria Museum and Art Gallery, Launceston
- Rigby Ltd
- Sporting Pix Australia
- State and territory government protocol officers