- University of Münster
- Tysk-Svenska Handelskammaren, Stockholm
(German-Swedish Chamber of Commerce)
- Commercial and corporate law
- Business and Company law
- Construction and Property law
- Banking law
- Professional indemnity claims
- "Correction of the afficial minutes
of the shareholders Annual General Meeting in non listed companies (published in "Die Aktiengesellschaft 2001, sid. 645 ff.)"
- German Lawyers´ Association - DAV
- German Legal Conference Group - djt
- German-Swedish Chamber of Commerce, Stockholm
- Juristische Gesellschaft Hamm e.V.
- Lawyers´ working group of commercial and corporate law DAV
- Chair and/or Member of the Supervisory Board of several companies