About Us

Carron is the CEO and co-founder of EXi. She is a chartered physiotherapist, who qualified from the University of Hertfordshire in 2000.  She supplemented this with an MSc in Sport and Exercise Medicine from Queen Mary, University of London in 2007.  Carron has a wealth of experience in the NHS and private practice, over a 20 year clinical career.  She also supported professional athletes, including the Team GB squad as a senior physiotherapist at the English Institute of Sport. 

Lewis is the Director of Science and Research and a co-founder of EXi.  He qualified as a physiotherapist from the University of Melbourne in 1999 and has been working as a chartered physiotherapist in the UK since 2001.  He completed an MSc in Sport and Exercise Medicine in 2011.  Lewis has worked in the NHS and private practice.  He has also spent 7 years working full time in professional football, at Leyton Orient and Arsenal FC.  Lewis is a keen recreational runner himself, which helps him appreciate the benefits that regular exercise can provide.

  Grace currently leads Apple’s Health and Fitness Strategic Initiatives in EMEIA, and joins EXi on 1st Dec ‘20 as COO and co-founder. During her 12 years at Apple, she headed up all areas of wellness for Apple employees, before moving role to focus on working with Apple's business customers. Her passion is preventative care and chronic disease management.  She has a BSc in Physiology and is currently studying for an executive MBA.

  David is an investor and Chairman of EXi. David previously founded, built up and sold several businesses and health club chains in the US and Europe. He has financial interests in several other businesses and industries and has been involved as an investor, advisor and board member of some of the largest and most successful health & fitness companies in world including Fitness First,24 Hour Fitness, Zumba Fitness and Sarva.  He is also the current Chairman of Gousto and CEO of Pi Capital.

Sir Muir is EXi's Chief Knowledge Officer.

Muir is a world-renowned public health physician with a passion for exercise therapy. He has held senior positions in the NHS, and was knighted for his services in 2005. Muir was also instrumental in the conception of the Cochrane Library, and
was Director of the National Screening Programme, during which time he helped pioneer the national cancer screening programmes.

Dr Sood is the Chief Medical advisor for EXi.  He previously served as NHS England’s Associate Chief Clinical Information Officer.  He is a practicing NHS doctor.  Harpreet trained as a clinical doctor at King’s College London and Imperial College Business School.  Following this he did a Masters Degree in Public Health (MPH) at Harvard University where he focused on international health policy.  Post MPH, Harpreet was a Deland Fellow in health policy and management at Brigham and Women’s Hospital, a large academic medical centre in Boston.

Charlotte is the Head of Customer Experience at EXi.  Charlotte has a wealth of experience in customer facing roles, working as a customer support director and account manager in 2 previous companies.  She also has a broad knowledge of the start-up industry, and has experience in all sections of business development.  Charlotte has a BA(hons) degree in Graphic Design from the University of Lincoln in 2010.

Tim is an investor and director of EXi. Tim is an investor, Chair and adviser to a portfolio of businesses in the health, well-being and legal sectors. He was formerly Global Chair and Managing Partner at international professional services firm Taylor Wessing which Tim led through a period of transformational growth from 2009-2018. He is Chair of various charitable organisations including the Royal Society of Arts.

Rupes is EXi's Director of Wellbeing and produces the engaging audio content delivered through the EXi app. Rupes holds a BA in politics from the University of Bristol and an MA in International Relations from the University of Cape Town. Following a distinguished career in comms, including posts at Prosek Partners and Nomura, Rupes is retraining as a psychotherapist and is also an experienced yoga teacher, and meditation/ mindfulness expert. 

Michael is a Senior iOS Developer at EXi.  Michael has been working on the Apple Platform for over 25 years. Originally implementing client server database solutions, in 2008, with the release of the first publicly available iOS SDK, he switched his focus to developing iOS apps for the iPhone (and eventually the iPad and Apple Watch). Over the years he has developed apps for a range of industry sectors, from the travel industry, through to the management of digital identity.