Ian Macdonald

Strategic Value Partner

Ian Macdonald is a chartered psychologist who graduated with Honours from Brunel University in London in 1972. He was a staff member at Brunel and continues to be associated there as an Honorary Fellow. He established Macdonald Associates Consultancy (MAC) in 1983. MAC works in partnership with other consultancies, in particular Bioss International Ltd.

Ian is the co-author of Systems Leadership: Creating Positive Organisations which forms the basis of MAC’s work. Ian has developed Systems Leadership Theory (SLT) throughout his career as a set of underlying principles, concepts and tools to help create the conditions where people can work creatively in a just and fair context. 

Over the past thirty years, Ian’s consultancy work has included many different countries, cultures and types of organisation from indigenous communities to financial services, from mining to the Church and he continues to work across all sectors. Currently, he is working on a major project in education in far north Queensland, combining SLT with new pedagogical approaches and this has resulted in significant improvements in student outcomes. He is also currently project managing a global reorganisation programme for a multi national mining company. 

Areas of Expertise 
  • Organisational Design and Effectiveness.
  • Leadership and Team Development.
  • Organisational Health Analysis and Review.
  • System design and Implementation.
  • Strategic advice, especially to CEOs.
  • Training in all of the above.
  • BSc Psychology Hons 1972
  • Chartered Psychologist 1985
  • PhD Psychology 1991
  • Honorary Fellow Brunel 2011
  • British Psychological Society


Bioss / Macdonald Associates Consultancy
Cedar House, Vine Lane, Hillingdon, Middlesex
United Kingdom


+44 (0)1895 255758