• Reverend, CGK
   

Dr. G. Korevaar, secretary

• ​Assistant professor, Industrial Symbiosis at the Delft University of Technology
• Professor, ‘Energietransitie van de Circulaire Economie’ at the Rotterdam University of Applied Sciences
• Chairmain of the Programme Committee of the Inter-University Master's Programme in Industrial Ecology (Leiden-Delft)

G. Wolters EMFC

• Chairman of the board, Meilân foundation for Christian primary education (municipality of Heerenveen and Fryske Marren)
  
  Secondary positions:
• ​Financial synodal committee, Mutual Aid & Advice CGK
• Writer for the foundation ‘Vertel het maar’ (children's service method)