Leigh was appointed to the Qantas Board in August 2007 and as Chairman in November 2007. Awarded Officer of the Order of Australia (AO) on 26 January 2008 for service to business through executive roles in the mining industry, to the promotion of international trade and the development of export markets, and to the arts A Director of Bechtel Group Inc and Chairman of Bechtel Australia Pty Ltd, Crestone Wealth Management and the National Gallery of Victoria Foundation A Senior Advisor to Kohlberg Kravis Roberts & Co, a Member of the Council of Trustees of the National Gallery of Victoria, and Chair of the University of Melbourne’s philanthropic campaign