Executive Board of Everllence
Dr Uwe Lauber -
Chief Executive Officer, Chief Sales Officer
Dr Uwe Lauber was born in Bad Säckingen in Germany in 1967. After graduating from high school he studied Mechanical Engineering at the University of Applied Sciences of Technology, Economics and Design (HTWG) in Konstanz and obtained a master's degree. In 2000, he studied business engineering at the business school in St. Gallen. In addition to that, in 2009, he received a PhD in mechanical engineering from the University of Kronstadt.
Martin Oetjen -
Chief Operating Officer
Martin Oetjen was born in Buchholz in the Nordheide in 1968. In 1988 he began studying mechanical engineering at the TU Braunschweig, graduating in 1995 with a degree in engineering.
Since 1 August 2020 Martin Oetjen has been a member of the Executive Board of Everllence (former MAN Energy Solutions SE) and is responsible for the company's entire supply chain.
Ingrid Rieken -
Chief Human Resources Officer
Ingrid Rieken has joined the Everllence (former MAN Energy Solutions) Executive Board as Chief Human Resources Officer on January 1, 2024. Born in Aurich in 1974 she looks back on a successful 30-year career in the Volkswagen Group, during which she held several senior management positions in Human Resources and Logistics at the Volkswagen plants in Emden, Hanover and Poznan in Poland.
Rainer Seidl -
Chief Financial Officer
Rainer Seidl holds degrees in Industrial Engineering and Mechanical Engineering. After studying at the Universities of Applied Sciences in Augsburg and Munich, he began his career at Audi in Ingolstadt, working in factory logistics planning and controlling.
On the 1st of September 2025 the Supervisory Board of Everllence has appointed Rainer Seidl to the company’s Executive Board.
Dr Gunnar Stiesch -
Chief Technology Officer
Dr Gunnar Stiesch was born in Hanover in 1970. He has been Chief Technology Officer at Everllence (former MAN Energy Solutions SE) since 1 January 2023, with responsibility for research and development.