2006
Member of board ASK, Arbeitsgemeinschaft Siegerlaender Kuenstler (Working Group of Artists in Siegen), Germany
Member of The Boston Athenaeum, Boston, USA
partnership to the Museum of Contemporary Art Siegen
2004
call for membership to “Deutsche Gesellschaft für Photographie, DGPh” (German association for photography)
since 2003
Member of BBK, Berufsverband Bildender Kuenstler (association of visual artists) & Association Internationale des Arts Plastiques
since 2001
since 2001 member of Freundeskreis des Museum fuer Gegenwartskunst Siegen (friends of the museum of conntemporary art Siegen)
Member of ASK, Arbeitsgemeinschaft Siegerlaender Kuenstler (Working Group of Artists in Siegen), Germany
1998-2005
Elected member of board for Kunstverein Siegen, Germany
1998–2003
Member of Bund Freischaffender Fotodesigner, BFF
since 1994
Member of Kunstverein Siegen
