Supervisory Board (Raad van Commissarissen) Price Waterhouse Coopers Nederland.
Praemium Erasmianum (Member)
Scientific Advisory Board, National Integration Fund (Nationaal Integratie Fonds) (Board member)
Kurt Lewin Institute (Member)
Chair of the Board - transfer of secretariat to Utrecht University
Beoordelingscommissie Onderzoeksmasters Gedragswetenschappen (KNAW/ VSNU) (Member)
The Social Scientific Council (SWR) (Member)
The Royal Netherlands Academy of Arts and Sciences (KNAW) (Member)
Koninklijke Hollandse Maatschappij voor de Wetenschappen
Praemium Erasmianum Foundation (Member of the Board)