Who we are

Two disciplines, one standard.

Quantum brings together two things that usually live apart — clinical medicine and human performance — and it's led by two people who have spent their careers at the top of each. Health that's measured and managed by a doctor; performance built on the methods used at the elite end of sport and business.

Dr Alan Farrell, Head of Health

Dr Alan Farrell

Founder · Head of Health

Alan is the founder of Quantum and a medical doctor with over 25 years' experience across elite professional-sport medicine, preventive medicine, and men's hormone and metabolic health. He is a recognised voice on the use of AI in clinical care.

At Quantum he sets the direction of the health side of the business — the clinical model, the standards and the science — with day-to-day clinical care led by Dr Ahmed Saleem. The aim is unchanged: give each man an accurate picture of his health and a clear, practical plan to act on it.

Brian Cashman, Head of Performance

Brian Cashman

Head of Performance · MSc

Brian leads the performance side of Quantum. He holds an MSc from UCD with postgraduate study in psychology and high performance, and his approach is built on the Hintsa performance model used at the elite end of sport.

With a C-suite background in high-growth business, he has worked with organisations including Spotify, McLaren Racing, KPMG and AIB, and delivers large-scale culture and leadership programmes alongside Archipelo Coaching and change expert Damian Hughes. At Quantum he turns better health into sustained performance — for individuals, teams and the cultures they work in.

Work with us

Health and performance, under one roof

Whether you want a clear picture of your own health or a programme for your team, we'd be glad to talk.

Our services are not intended for use in a medical emergency. If you need urgent medical attention, call 999 or 112, contact your GP, or attend your nearest emergency department. This website is for information only and does not replace individual medical advice.