Mark was appointed Chief Executive of the Bioeconomy Science Institute in 2025. Prior to joining Plant & Food Research, now a Group of the Bioeconomy Science Institute, as Chief Executive in 2023, Mark spent 30 years with Fonterra Cooperative Group. His most recent role, which he held for five years, was as Director Research & Development, Category Marketing & Strategy, leading a team of around 400 staff. Whilst at Fonterra, Mark held roles based in New Zealand and internationally. This included three years in Japan in a technical role focused on growth and customer engagement, and five years in the US where he was the Regional Director for Fonterra Americas, based in Chicago.