Stefan has been CEO of Kantar TNS Germany & Central and Eastern Europe since April 2014.
Previously he was a member of the German Kantar TNS Executive Board from 2010 to 2014, and Managing Director Automotive and Travel & Transport Germany. From 2003 to 2014 he was the Kantar TNS Global Account Director for the Volkswagen Group. Stefan joined the company in 2001 as a consultant in the Automotive practice. Prior to joining TNS Infratest, Stefan worked as an Assistant Professor of Marketing at the University of Augsburg/Germany and as a lecturer at the University of Rennes, France, and several other institutions.