KordaMentha KordaMentha is an Australian advisory and investment firm that provides specialist forensic, real estate, turnaround / restructuring and investment management services. The business was formed in April 2002 by Mark Korda and Mark Mentha. Located at
Level 24, 333 Collins Street, Victoria, Australia.
Phone: +61 3 8623 3333
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Yvonne Willich


Melbourne +61 3 8623 3346

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'Every business is fundamentally about people. Understanding the culture of your business and the factors which influence it is essential to success.'

Yvonne is a Psychologist who has worked in both Counselling and Organisational roles. Yvonne’s background in Counselling Psychology gives her a deep understanding of the factors which underpin motivation, attitude and behaviour.


She has worked within the private and public sectors to assess and improve workplace culture and performance.


Yvonne continues to advise boards and executives on leadership, culture and key stakeholder relationships. Prior to joining 333/KordaMentha she had been the Co- Director of Key Consultancy for 18 years.


Yvonne uses a combination of psychological profiling, interviewing and observation to understand the dynamics of individual and team behaviour. She also works with leaders to increase their self awareness and their understanding of the impact they have on others.


She provides coaching to leaders to improve their ability to deal with issues of staff performance and morale.

Yvonne's experience includes:

  • Improving the culture in workplaces where staff surveys indicate low confidence in leadership, poor morale and internal conflict. Yvonne has worked with boards and executives in these organisations to diagnose the causes and constructively address these issues.
  • Executive coaching
  • Conducting the Australian internal review of Partner motivation and retention for Arthur Anderson Chicago
  • Media speaker and writer on communication, conflict and leadership
  • Co-author of the strategic review of Leadership and Culture within NBN Co.

Yvonne Willich_Web


  • Bachelor Behavioural Science
  • Graduate Diploma Applied Clinical Psychology
  • Bachelor of Education.

Memberships & Publications

  • M.A.P.S.
  • Current Registration: Victorian Board of Psychologists.
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