Studies in Physics, Mathematics and Business Sciences, Frankfurt University; research at Columbia University, New York and École Normale Supérieure, Paris. 1995-97, Consultant, AT Kearney. 1997-2007, with Hochtief Group: Senior Vice-President, Corporate Development; Chief Executive Officer, Central Eastern Europe; Chairman, Turner International. 2007-09, Chief Executive Officer, OC Oerlikon. 2009-11, Senior Adviser, Texas Pacific Group. 2010-11, President, Cleantech Switzerland. Currently, Chief Executive Officer, WS Atkins. Member of the Board: Aggreko, UK; Ontex, Belgium; SUSI Partners, Switzerland. Honorary Professor of Physics, Frankfurt University.