Martika Jonk serves as a Member of The Supervisory Board at HES International B.V. and Catharina Hospital Eindhoven since 2022 and 2018, respectively. In addition, Martika Jonk holds the position of Of Counsel and previously Partner/Shareholder at CMS Netherlands since 1986. Martika Jonk's experience includes being a Member of The Supervisory Board at Heijmans since 2018, Gasunie from 2013 to 2021, and St. Antonius Ziekenhuis from 2010 to 2018. Formerly, Martika Jonk was President of the World Law Group from 2007 to 2009. Educational qualifications encompass a Master's degree in Law from the University of Amsterdam and a degree in Real Estate law from Grotius, along with further education at Nijenrode University.