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About Us

The Management Advisory Service is an organisation dedicated to providing you with specialised management and executive services.

We are specialists in Organisation and Leadership Development and Corporate and Personal Resilience.

Our team is made up of very experienced business professionals who combine both academic and commercial skills and is headed by our Directors Professor Derek Mowbray and Barbara Leigh.

Derek Mowbray
BA., MSc., MSc(Econ)., PhD., DipPsych., CPsychol., CSci., FBPsS, FIHM., FISMA..

Derek Mowbray is a Chartered Psychologist and Chartered Scientist with a doctorate in leadership. His specialties are building organisation wide Positive Work Cultures, adaptive leaders, and effective managers.

His approach is to use cultural and behavioural influences that build commitment, trust and engagement, and linking these to his models of organisation development and personal performance.

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Our Associates:


Ruth Brown MA Cantab, PGCE


Ruth has been delivering mental health, resilience, parenting and safeguarding training since 2005, in the corporate, education, statutory and voluntary sectors, to both staff and volunteers, including line managers and senior leadership teams. In April 2021 Ruth became a freelance trainer and joined MAS to train new licensees to deliver the Resilience programmes.

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Roy Marriott MCC MA CANTAB

Roy Marriott

Roy Marriott is the founder of “Brief Mindfulness,” drawing on his 20 years of experience of Mindfulness in the workplace. He is also the creator of other training models, including “iFLOW” Time Management and the “MAGIC” model of Negotiation, both of which are in use around the world.

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Dr Bridget Juniper

Dr Bridget Juniper specialises in the measurement of employee well-being and wellness.

While there are numerous providers who offer well-being programmes, there are very few who actually evaluate employees’ well-being using empirical methods. For this reason, we are delighted to have Dr Bridget Juniper as our associate.

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Dr Dirk Stemper

© Florian Liedel

Dr Dirk Stemper is based in Berlin and is a Director of the INSTITUTE FOR LEADERSHIP DYNAMICS GMBH. Dirk focuses on Adaptive Leadership, Individual and Organisational Resilience, Wellbeing and Performance.

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Gary Hogman BSc (Hons)., MSc., MBPsS..

Gary Hogman is focussed on supporting organisations to improve their peoples’ mental health by building resilience and developing creative people and organisations.

Gary is a psychology graduate with 20 years experience working in mental health in the areas of research, policy, communications and campaigns. After three years at the local health authority level he spent 12 years working at the national level in the third sector before joining the National Mental Health Development Unit to run the Department of Health’s national programme, ‘Shift’ for five years.

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Need more information

Call us now on 01242 241882 for further information or to arrange a meeting or email us


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