Ancillary activities
- Member | Commissie Juridische borging van academische vrijheid | KNAW | Not remunerated
- Lid bestuur | International Association of Universities (IAU) | Not remunerated
- Chair | Steering Board | Coalition for Advancing Research Asssessment (CoARA) | Not remunerated
- Extraordinary professor | University of the Western Cape (UWC) | Not remunerated
- Member of the Administrative Board International Association of Universities (unpaid) - as of 2022
- Extraordinary Professor at the University of Western Cape, South Africa (unpaid) - as of 2012
- Chair Steering Board CoARA (unpaid) - as of 2024
- Member Advisory Committee Royal Netherlands Academy of Arts and Sciences (KNAW) on Legal safeguarding of academic freedom (unpaid) - as of 2025