The Australian impact investment market is delivering positive financial returns for investors while also benefiting our environment and impacting the lives of tens of thousands of people. Published in partnership with Centre for Social Impact at Swinburne University, Benchmarking Impact 2018 is the primary source of market-based data on the composition, growth and performance of Australian impact investment products. It presents the findings from analysis of impact investment activity and performance for a data-set of 51 Australian impact investment products active at 31 December 2017, with a total product value of $5.8 billion.