About Clerkenwell Health
Our founders: Dr Henry Fisher (CSO), Tom McDonald (CEO), Sam Lewis (CFO) and George McBride (CCO)
A meeting of minds
Our story began long before our official launch in 2021. While completing his PhD in chemistry at Oxford, Henry began working with the UK's leading psychedelic research NGO, The Beckley Foundation. He later joined Volteface, the UK's first drug policy think tank, before founding a regulatory strategy consultancy.
It was here that Henry met Tom who had spent a decade in pharma and medtech at Accenture and IQVIA, working with some of the world's largest life sciences companies to improve patient care and harness clinical data. Both shared the same vision: a mental health research company that sees people, not participants, and proves that compassionate care delivers superior science.
Alongside CFO Sam Lewis and CCO George McBride, they launched Clerkenwell Health in early 2021 with a mission to bridge the gap between breakthrough treatments and the people who desperately need them.
From psychedelics to the full CNS spectrum
Our first projects broke ground in the emerging field of psychedelic-assisted therapy. We opened Europe's first commercial research site dedicated to psychedelic trials, designed specifically to support patients under the effects of psychedelics with dignity and care, earning coverage in The Guardian, The Times, Evening Standard, Sifted, Forbes and more.
While psychedelics remain an important focus, our model is now transforming trials across the full spectrum of CNS and psychiatric conditions, from depression and anxiety to dementia and other neurodegenerative disorders.
Because when you design trials around human dignity, breakthrough science follows.
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Copyright © 2025 Clerkenwell Clinics Limited. All rights reserved. Clerkenwell Health is a company registered England and Wales Company No.12568155. Our clinics hold Schedule 1-4 licences from the Home Office.













