Dr Nelson has experience in the investment community, including in life sciences. Dr Nelson has served as Chairman of the Caledonia Investments Group (since January 2012) and as a Director of The Caledonia Foundation (since August 2002). He previously served as Chief Executive Officer and Co-Chief Investment Officer of the Caledonia Investments Group (from February 1992 to January 2012). Dr Nelson has served as Chairman of Art Exhibitions Australia (since 2019), Director of the Mindgardens Neuroscience Network (since February 2018), Governor of the Florey Neurosciences Institute (since October 2007), and Director of Kaldor Public Art Projects (since October 2005). He is member of People, Culture and Risk Committee.