Stephen is a founding partner of Brandon Capital Partners. Before moving to Australia, Stephen was a Director of Apax Partners based in London.  Previously, he fulfilled roles in product development with UK biotechnology company Cantab Pharmaceuticals.  Earlier, Stephen spent ten years as a research immunologist in London and California.

Stephen is currently a director of; Longas Technologies, MecRx, OncoRes Medical, Respirion Pharmaceuticals and Vaxxas.  Stephen was a former director of Elastagen, (acquired by Allergan in 2018).  He is also a Director of the Australian Investment Council (formerly AVCAL).

Stephen has a Bachelor of Science (Honours) from Chelsea College London, a PhD in Immunology from Kings College London and an MBA, specialising in Entrepreneurship, from Imperial College London.  Stephen is a Graduate of the Australian Institute of Company Directors.