Co-director, Stichting Ark

Dijkgraaf of Waterschap Rijn en IJssel

Senior Expert, DG for Agriculture and Rural Development

Director, Central Office of the National Delta Programme Commisioner

Policy Analyst, DG Agriculture and Rural Development

CEO Commonland Foundation

Chair of Land Policy and Land Management, School of Spatial Planning, TU Dortmund University

Assistant Professor, Leiden University Medical Center