text: * 1999 – 2000	member of the founding committee of the Groningen Genomics Centre of the University of Groningen
  * 1999 – 2007	member of the board of directors of the Groningen Biomolecular Sciences and Biotechnology Institute (GBB) of the University of Groningen
  * 2000 – 2007	chairman of the Genetics Cluster of the University of Groningen
  * 2011 – present member of the scientific advisory board of the LOEWE Institute for Synthetitic Microbiology (Synmikro) in Marburg (Germany)
  * 2013 – present confidential advisor on scientific integrity, Faculty of Mathematics- and Natural Sciences, University of Groningen Groningen
  * 2015 – present chairman and co-founder of the Centre for Sustainable Antimicrobials (CeSAM) of the University of Groningen
  * 2015 – present cofounder, Centre for Antimicrobial Research (CARES). Chairman & Director:  Prof. Gilles van Wezel.