Sam Mostyn is a Non-Executive Director and sustainability adviser and speaker. She is the Chair of Citigroup and serves on the boards of Virgin Australia, Transurban, Mirvac and Cover-More Group. Sam has recently been appointed to the newly created Business and Sustainable Development Commission. 

Before this, Sam was Group Executive, Culture & Reputation at Insurance Australia Group and was responsible for the Human Resources, Corporate & Government Affairs, Internal Communications and Corporate Sustainability functions and served in this role for over six years. 

In her time at IAG, Sam oversaw the development of a corporate, social and environmental sustainability plan for the company with particular focus on integrating the company's internal cultural issues and business planning with customer, corporate, community and environmental activities. In that time, IAG participated in the formation of the Australian Business in the Community Network, the launch of the Australian Business Roundtable on Climate Change, and the creation of the Business for Millennium Development board. The company also committed itself to carbon neutrality, and to creating a safe, diverse and flexible workforce. 

Prior to joining IAG, Sam held senior executive positions with Optus Communications in Sydney and Cable & Wireless Plc in London, and between 1994 and 1996 she was a policy advisor to two Federal Communications Ministers before joining the office of the Prime Minister Paul Keating as a senior communications policy advisor. 

In 2005, Sam was appointed as a Commissioner with the Australian Football League. 

Sam's other board and advisory roles continue to encompass a broad range of interests. She previously served as President of the Australian Museum and a board member of Reconciliation Australia. She is Chair of Carriageworks and currently serves on the board of the Australia Council for the Arts. Sam is President of the Australian Council for International Development, and a member of the NSW Climate Change Council. She serves on the advisory board of ClimateWorks Australia and the Climate Council and is Vice-Chair of the DCA Board. Sam served a term as a Commissioner with the Federal Mental Health Commission, and was an inaugural member of the National Sustainability Council.  

Sam is a member of Chief Executive Women, and served on the Review of Treatment of Women in the Defence Force led by former Federal Sex Discrimination Commissioner, Elizabeth Broderick