Born 1965, married, one daughter, one son.
After completing his studies in business administration, Thomas Stiegler worked for the auditing firm KPMG before starting his international career at Bilfinger Berger AG (now Bilfinger SE) in 1993. Until 2010, he held various management positions in the international construction business in Asia, Europe, the MENA region and North America. Since 2010, Stiegler has been Head of Business Unit 3 - International at PORR Bau GmbH. There he is responsible for the Group's activities in Eastern Europe and the Northern European countries. In December 2018, Stiegler was appointed Chief Operating Officer of PORR AG.