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About Isobel Mahon

Isobel Mahon MIACP, MIAHIP is an accredited counsellor, psychotherapist and supervisor. She graduated from the Tivoli Institute in 1998 as an Integrative psychotherapist following a BA (Hons) in Trinity College, Dublin in Philosophy and English. Since then has run a private practice in South Dublin. She has undertaken further training in Psychosynthesis at Re-Vision in London, couples therapy with Relationships Ireland an CBT with CBT Solutions.

Isobel also qualified as an integrative supervisor in 2016 from IICP.


Isobel worked as a trainer in The Tivoli Institute for four years, initially teaching psychodrama and then devising and teaching on the Foundation Year. She has worked for the HSE in the Alba Counselling Service and currently works extensively with several Employee Assistance (EAP) agencies. She has also taught workshops to the corporate sector in personal development and creativity and also in the areas of stress and public speaking.


Isobel has a background in theatre and TV as an actor and writer and holds an MA in screenwriting, all of which informs her work. She believes that the life we aspire to must be created first in the imagination before it can be grounded in reality. This perspective is consistent with both CBT and Humanistic Psychology.

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  About Mark DuBerry

Mark DuBerry MA, MIAHIP, M.Ps.S.I. studied psychology at UCD where he completed a Masters Degree in Clinical Psychology in 1984. He then went to London to undertake further training in Psychosynthesis Counselling and Psychotherapy. He lived and worked there for 10 years during which time he established a busy private practice as well as becoming a trainer with several training organisations including Re-Vision, a centre offering training in Integrative Psychosynthesis. He was also a co-director of the North London Counselling Service.


On returning to Dublin in 1996 he established a private practice as well as once again becoming a trainer and group therapist with a number of training organisations including the Tivoli Institute, All Hallows College and Trinity College Dublin as Adjunct Assistant Professor on the Doctoral Programme in Counselling Psychology. He is also a fully trained and accredited supervisor and has been supervising therapists and counsellors for nearly 30 years both as individuals and in groups.

His approach to the work is an integrative mix of Client-Centred, Gestalt and Psychodynamic therapy, Psychosynthesis and Jungian/Archetypal Psychology. He is currently accredited with IAHIP and is a member of PSI. He is also a musician and composer and values highly the role that creativity in all its forms can play in nourishing our mental health and happiness. 

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