Honorary Offices:
- Member of Advisory Board Berlin Bosphorus Initiative
- European Affairs Advisor to Episcopal Working Group German Bishops Conference (Catholic Church in Germany)
- 2014-2020 Vice President European Movement international
- 2003-2010 Secretary General Europa-Union Deutschland (UEF-Germany)
- 1996-2012 Member „Team Europe“ (European Commission)
- 1990-1998 Bonn/Brussels: International Youth Work: Young European Federalists/European Coordination Bureau of International Youth Associations (today European Youth Forum)
Membership in democratic associations:
- Allgemeiner Deutscher Fahrrad-Club (ADFC) e. V.
- Europa-Union Deutschland e.V.
- Transparency International Deutschland e.V.
- Verein für Geschichte und Altertumskunde Westfalens, Abt. Paderborn e.V.
- Wikimedia Deutschland – Gesellschaft zur Förderung Freien Wissens e.V.
Faith:
- Member of the Roman Roman Catholic Church
- Parish Blessed Bernhard Lichtenberg