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Meet the minds behind PsychFlex

About PsychFlex

Steven C. Hayes

Steven C. Hayes is the originator of Acceptance and Commitment Therapy (ACT) and a worldwide known author and clinician. He has written up to 50 books and 700 articles. He is founder and co-developer of Process-Based Therapy (PBT), the PsychFlex App and the MyMind App.


Gijs Jansen

Gijs Jansen is one of the first ACT pioneers in the Netherlands. He has written 15 books and over 100 articles, and presented a number of online and direct training programs on ACT. He is founder and co-developer of PsychFlex.

Spencer Smith

Spencer Smith is the head of Praxis and the Director of the Institute for Better Health. 

Rob Hulsen

Rob Hulsen designed the PsychFlex app, as well as the structure for the MyMind app and plugin. He is founder of PsychFlex and responsible for all technical development.

Barry Kicken

Barry Kicken is founder of PsychFlex and CEO of ACT Guide, the Dutch version of PsychFlex. He is the brains behind the company in terms of management, customer service and acquisition.

Acceptance and Commitment Therapy (ACT)

information about ACT

Process Based Therapy (PBT)

information about PBT

Ons team

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