Thinker Laureate of the Netherlands (March 2015 - April 2017)
Member Academic Advisory Board, Wetenschappelijk Adviescollege Geesteswetenschappen, Nederlandse organisatie voor Wetenschappelijk Onderzoek, The Netherlands Organisation for Scientific Research, NWO (2015-2017)
Rotation-columnist Tijdschrift voor Asiel- en Migratie Recht (2017)
Organiser 6e KNAW Hendrik Muller summer seminar on time, 2 juni, 16-20 juni en 4 juli 2014 collaboration. Prof. Willem de Haan.
Columnist Link. The Hague University of Applied Sciences, collaboration with Frank Meester (2014-2015)
Chair jury Geert Grotepen 2014, price for best Philosophy thesis
Jury member Spinozalens, international price (2003-2011). In this position was a part of the organisation of the laudation and promotion of Donna Dickenson (april 2006), the nomination of Michael Walzer as laureate (April 2008), and the nomination of Richard Sennett as laureate (November 2010)
Board member feministic monthly magazine Opzij (2009-2014)
Committee member VIDI, The Netherlands Organisation
for Scientific Research, NWO Geesteswetenschappen (2007 en 2008)
Member brainstorm group curriculum University College The Hague, University Leiden (spring 2007)
Member HOVO-board, The Hague University of Applied Sciences (2007-2012)
Member consultation group PGD genetic breast-cancer (embryo-selection) for the state secretary Ministry of Health, Welfare and Sport (2007- 2008)
Member brainstorm group ‘Dilemma’s around embryo use’, Rathenau Institute (2007- 2008)
Member panel Filosofie Magazine, panel that gave a monthly opinion on current issues. September 2006-December 2007)
Member Zij-panel, panel that gave a monthly opinion on current issues. Opzij (September 2002 - January 2005)
Cofounder and Chair Stichting Grensgevallen, promotion of interaction between science, art and culture.(1999-2008)
Member Medical Ethical Committee, Alkmaar Medical Centre (1990-1997)
Chair Vereniging voor Filosofie en Geneeskunde, VFG (1992-1998)