Royal Society of Biology appoints new CEO

The Royal Society of Biology today announced the appointment of Dr Doug Brown as its new CEO, effective 1 September 2025.

He is currently CEO of the British Society for Immunology (one of the RSB’s Member Organisations), a position he has held since 2018. He is also a Trustee of Association of Medical Research Charities, has a PhD in molecular biology from the University of Cambridge, and has many years of experience across healthcare and biological fields.

Brown succeeds Dr Mark Downs PhD DSc (Hon) CSci CBiol FRSB who has been the RSB’s CEO for the last 16 years and is now retiring.

Brown said: “I am thrilled to be joining the RSB as Chief Executive at such a pivotal time for the life sciences. Biology is at the heart of addressing many of the world’s most pressing challenges, and the RSB plays a crucial role in empowering the community to drive meaningful impact now and in the future. Building on the strong foundations established under Mark’s leadership, I look forward to working with the dedicated staff team, our members, partners, and the wider scientific community to lead the RSB into its next chapter – ensuring that biology continues to improve lives and shape a better future for all.”

The new CEO’s appointment has been made following a search process, carried out by the RSB CEO appointments panel, chaired by Professor Richard J Reece who conducted the interviews. The appointment was then confirmed at an Extraordinary meeting of the RSB Council.



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