“The ITP has produced – in addition to excellent facilitators – an amazing variety of brilliant teachers and creative innovators.”

Hal & Sidra Stone

Founders of Voice Dialogue
and the Psychology of Selves


Leading institute

The ITP is known as the leading training institute in the area of Voice Dialogue and Transformational Psychology in the Netherlands and Europe. The institute brought this innovative approach to the Netherlands almost 30 years ago and rolled it out to a large number of European countries. Almost all instructors and trainers of the various Voice Dialogue training centres in these countries are trained by the ITP.

Experienced international staff is affiliated to the ITP, originating from various disciplines. The ITP is considered as a master institute according to the International Voice Dialogue Agreement – IVDA.


With Voice Dialogue World, the ITP also offers a platform and knowledge centre where you can find and share information about books, articles, facts and areas of use of Voice Dialogue and Transformational Psychology.


Purpose of the ITP
TheInstitute for Transformational Psychology aims to provide a contribution to the development of consciousness of individuals, couples and organisations. To achieve these objectives, the ITP organises lectures, education and training courses for psychologists, therapists, coaches, trainers, managers and career advisors.

The ITP’s courses and training have major clinical value. For instance, the one-year Transformational Psychology (TP) and Voice Dialogue course is valued at 98 credits by the Dutch Association of Psychologists.

The ITP offers coaching and therapy to individuals and partners. The ITP’s methods and techniques aren’t an objective in itself, but powerful tools to gain insight into a number of important principles of transformation. This leads to a substantial deepening of man.



With Voice Dialogue you can go as deep as you like, as high as you can reach, as low as you dare and as far as you can. It is the exploration of our inner space, in which both heaven and earth have their place.

The ensuing shift in our energy patterns changes consciousness and alters our possibilities for relationship and our place in the world.