1995-

Member of International Association for Mission Studies and its European branch IAMS

1996-

Member of Arbeitsgemeinschaft für evangelikale Missiologie

1997-

Member of Deutsche Gesellschaft für Missionswissenschaft

1998-

Founding member, Chairperson (1998-2006) of Missiological Section of Kollegium Doktorum of the Reformed Church in Hungary

2002-

Founding member, member of steering committee, president (2004-2015), vice-president (2015-) Central and Eastern European Association for Mission Studies (CEEAMS)