Home Why How What Who Contact Four Chambers Consultancy is a cooperation of independent consultants providing advice on behavioral change in organizations like organizational development, efficiency improvement and cultural change. The four chambers represent the rational, emotional, physical and spiritual elements of human behavior. Effective behavior is all about the interaction between the four chambers. In organisations the same concept applies. To sustainably change an organisation, we consider all four chambers in correlation The Four Chambers Consultancy team is formed by Sabine den Hartog and Nicole Toorenaar. Both with a great passion for their profession!