Corporate boards •
RAG AG, member of the supervisory board (since 2011) •
Landesbank Berlin Holding, member of the supervisory board (1996–2001)
Non-profit organizations •
Berlinische Galerie, member of the board of trustees (since 2008) • Stiftung St. Matthäus,
Evangelical Church in Berlin, Brandenburg and Silesian Upper Lusatia, member of the board of trustees •
University of Bielefeld, member of the university council (since 2008), member of the board of trustees (2003–2007) == References ==