The GfKl is (founding) member of the existing International Federation of Classification Societies (IFCS) since 1985 and was organizer of the “First Conference of the IFCS” on “Classification and related methods of data analysis” (Aachen, 1987).
Co-operation with other national classification societies, e.g. from France, Great Britain, Italy, Japan, The Netherlands, Poland, and the USA partly is also supported by associated memberships.
Associated members
- Association of Classification and Data Analysis (CLAD, Portugal)
- British Classification Society (BCS)
- Deutsche Mathematiker-Vereinigung (DMV, Deutschland)
- European Association of Methodology (EAM)
- Gesellschaft für Operations Research (GOR, Deutschland)
- International Federation of Classification Societies (IFCS)
- Japanese Classification Society (JCS, Japan)
- Société Francophone de Classification (SFC, Frankreich)
- Società Italiana di Statistica (SIS, Italien)
- Sekcja Klasyfikacji i Analizy Danych PTS (SKAD, Polen)
- Vereniging voor Ordinatie en Classificatie (VOC, Niederlande)