- Member of the Dutch Physics Society (“Nederlandse Natuurkundige Vereniging”)
- Member of the Advisory Board (“Raad van Bestuur”) of FOM (2003-2012)
- Member of the International Advisory Board of Phys. Chem. Chem. Phys. (2002-2011).
- Member of the Programme Advisory Committee of FELIX/FELICE (2003-2009), FELBE (since 2006), and FLASH (since 2007).
- Member of the selection committee of the NWO Spinoza Prize (2006-2008).
- Member of the Board of the Atomic and Molecular Physics Division (AMPD) of the European Science Foundation, since 2004.
- Permanent Member of the Board of the International Symposium on Molecular Beams.
- Member of the Advisory Committee of the Fritz Haber Minerva Center for Molecular Dynamics in Jerusalem, Israel (since 2005).
- Member of the Advisory Committee of the Institute of Atomic and Molecular Sciences (IAMS) of the Academia Sinica in Taipei, Taiwan (2007-2010).
- Member of the Advisory Editorial Board of Chem. Phys. Lett. (2008-2010).
- Member of the Evaluation Panel of the AGOR/TRIµP project at the KVI in Groningen, The Netherlands (2008).
- Member of the International EPSRC Review Panel on Chemistry (2009).
- Member of the Editorial Advisory Board of The Journal of Physical Chemistry (2011).