After studying business administration at the European Business School, Marc Siemes obtained his doctorate in business administration from the same institution. From 2001, he worked in the Corporate Development division of Deutsche Bank Group, focusing on (Group) strategy, M&A and integration management.
In 2010, Marc Siemes moved to the Wealth Management division, supported integration topics and was responsible for various positions, including Head of Strategy Wealth Management Germany.
Since 2019, he has been Chief Operating Officer for the Booking Center Wealth Management Germany.
Since October 2024, he has also been a member of the Management Board and Chief Operating Officer of Deutsche Oppenheim Family Office AG.