Stirling is a former international rugby union player renowned for his physicality and leadership. Over a 15-year career, he earned 140 Super Rugby and 80 Wallaby Test caps, captaining Australia from 2006–2009. In 2012, he was appointed a Member of the Order of Australia (AM) for his service to rugby. While still playing, Stirling began his corporate career at Citi Institutional Equities, later holding senior roles at NAB across Wealth Management and Institutional Banking. After a decade in corporate finance, he joined a boutique advisory firm focused on alternative investments, particularly in technology, serving UHNW advisors and family offices. In 2020, Stirling co-founded XV Capital with former teammate James Godfrey. XV is Australasia’s leading sports innovation accelerator and sports-tech investor, helping sports organisations, ventures, and investors unlock growth and value. Stirling sits on several boards including XV Capital, Sportable Australia and The Rugby Club Foundation (Treasurer & Chair of the IC), and is a former board member of the Melbourne Rebels, RUPA, and the US RWC Bid Partnership.