About us

The Behavior Change Foundation is an initiative of the two largest behavior change organizations in the Netherlands: the Behavior Change Group and Dijksterhuis & van Baaren. Behavioral psychologists from both companies work on a voluntary basis at the Foundation.

 

We believe that we can make the world a little better using am evidence based behavioral change approach. Our team of behavioral experts and scientists works with you to address development issues.

Core team

Sari is a PhD student in Psychology at Radboud University and also one of the founders of the Behavior Change Foundation. As a scientist, she is committed to bringing knowledge of human behavior outside the walls of the university: to places where it is really necessary. Sari hopes to achieve this goal with the Behavior Change Foundation.

Sari Nijssen

Director

As a happiness expert at Happiness Lab, Roos makes people enthusiastic about well-being and behavior. With her work she tries to make the Netherlands just a little happier. Roos believes that there are people in the world who need her knowledge even a little more. She saw an opportunity within the Behavior Change Foundation to pursue her passion and hopes to help people born in less fortunate circumstances.

Roos Dohmen

Head of Communication

As a behavioral psychologist at Dijksterhuis & van Baaren (D&B), Martijn is involved in using knowledge from the behavioral sciences to solve social problems on a daily basis. With the Behavior Change Foundation he also tries to make people enthusiastic about behavior and behavioral change outside their own borders.

Martijn de Hoop​

Head of Finance

Sari is a PhD student in Psychology at Radboud University and also one of the founders of the Behavior Change Foundation. As a scientist, she is committed to bringing knowledge of human behavior outside the walls of the university: to places where it is really necessary. Sari hopes to achieve this goal with the Behavior Change Foundation.

Sari Nijssen

Director

As a happiness expert at Happiness Lab, Roos makes people enthusiastic about well-being and behavior. With her work she tries to make the Netherlands just a little happier. Roos believes that there are people in the world who need her knowledge even a little more. She saw an opportunity within the Behavior Change Foundation to pursue her passion and hopes to help people born in less fortunate circumstances.

Roos Dohmen

Head of Communication

As a behavioral psychologist at Dijksterhuis & van Baaren (D&B), Martijn is involved in using knowledge from the behavioral sciences to solve social problems on a daily basis. With the Behavior Change Foundation he also tries to make people enthusiastic about behavior and behavioral change outside their own borders.

Martijn de Hoop​

Head of Finance

While there is only one world to improve, Nina combines the best of both worlds with a background in Behavioral Psychology and Cultural Anthropology & Development Studies. Nina believes that behavioral research is invaluable in development cooperation. She previously worked for NGOs in Africa and Southeast Asia. Now, in addition to her role in the Behavior Change Foundation, she is involved in the Waste & Environment domain at D&B.

Nina Crox

Head of Strategy and Projects

Myrthe is a born idealist. She is driven to make the world around her more sustainable and beautiful. She is convinced that she can make even more impact with her knowledge of human behavior. In addition to the Behavior Change Foundation, Myrthe works as a behavioral psychologist for Behavior Change Talents, part of Behavior Change Group.

Myrthe Veeger

Behavioral advisor

While there is only one world to improve, Nina combines the best of both worlds with a background in Behavioral Psychology and Cultural Anthropology & Development Studies. Nina believes that behavioral research is invaluable in development cooperation. She previously worked for NGOs in Africa and Southeast Asia. Now, in addition to her role in the Behavior Change Foundation, she is involved in the Waste & Environment domain at D&B.

Nina Crox

Head of Strategy and Projects

Myrthe is a born idealist. She is driven to make the world around her more sustainable and beautiful. She is convinced that she can make even more impact with her knowledge of human behavior. In addition to the Behavior Change Foundation, Myrthe works as a behavioral psychologist for Behavior Change Talents, part of Behavior Change Group.

Myrthe Veeger

Behavioral advisor

As a behavioral psychologist at D&B and campaign leader at the LUMC, Sabine is committed to making the world a more sustainable, healthier and safer place. She believes that knowledge of behavioral change is the key to contributing to many of our contemporary, societal challenges. With the Behavior Change Foundation she aims to make even more impact and ensures that knowledge of behavioral change can be used in development cooperation worldwide.

Sabine Jansen

Behavioral advisor

Board of Directors

Mattheis is a senior lecturer at the behaviour change masters program at Radboud University. He is co-founder of the Behavior Change Group and developed the first post-academic program for behaviour change in the Netherlands. He is a passionate teacher of the practical application of fundamental psychology.

dr. Mattheis van Leeuwen

President

Rick has put behavior change on the map in the Netherlands and is partly to blame for the fact that people started to work with it enthusiastically and in large numbers. He is a real initiator and sees where the field goes / needs to go before others do.

Prof. dr. Rick van Baaren

Board member

As a born entrepreneur, Tim leaves behind a trail of successful initiatives. For example, he created growth opportunities within various organizations, developed supervisory programs for the government and founded two research and consultancy firms. He is an inimitable connector and innovator and sees opportunities where someone else does not see them, also in your organization.

Tim Wolters

Board member