Dr Brian Marien

Co-Founder and Director
Brian Marien


Brian trained in medicine and gained a Masters in Health Psychology from Surrey University before going on to train in cognitive and behavioural psychology at the Institute of Psychiatry, London. He worked as a specialist in the Academic Department of Psychological Medicine, St. Bartholomew’s Hospital, where he was involved in clinical practice, research and education. Initially the main focus of his work was the causes and consequences of stress and he wrote his Masters thesis on ‘burnout’.

Over the past ten years Brian has worked collaboratively with a team of highly experienced doctors, psychologists and executive coaches at the Positive Group, drawing on the latest advances in neuroscience, psychology and the medical sciences, to create a range of programmes specifically designed to improve psychological health, engagement and performance in the workplace.

Brian is the co-founder and director of the Positive Group, a company dedicated to delivering evidence-based techniques to improve the psychological wellbeing, resilience and performance of individuals and teams. Clients include Google, Grant Thornton, Shell, Clifford Chance, IBM, Ernst and Young, Foreign Office, NHS Trust and the BBC. Positive are now also working with over 30 schools and many universities in the UK, Europe and Asia.

Alongside his work for Positive, Brian has held a number of academic roles including working as a visiting lecturer on the MSc Programme for Human Resource Management, Organisational Behaviour at the Department of Organisational Psychology, School of Business, Birkbeck College and on the MSc Oncology Course, Institute of Cancer Research, University of London. He has also worked as Medical Advisor on psychological health and wellbeing to NHS Sussex.

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