Other Systematic Associations:
- Federation of European Biological Systematic Societies: BioSyst EU
- Société Française de Systématique (France)
- Gesellschaft für Biologische Systematik (Germany)
- Swiss Systematics Society (Switzerland)
- Network of Biological Systematics (Austria)
- Willi Hennig Society (International)
- Society of Systematic Biologists (USA)
- Society of Australian Systematic Biologists (Australia)
- Australasian Systematic Botany Society
In addition, the Systematics Association maintains especially strong links with the Linnean Society of London