Cave and Karst Science Organizations: International and National
- International Union of Speleology (UIS)
- UIS Informatics Commission
- UIS Commission on Karst Hydrogeology and Speleogenesis
- IGCP-513 "Global Study of Karst Aquifers and Water Resources"
- Speleological Association of Slovenia (Slovenia)
- Swiss Speleological Society (Switzerland)
- National Speleological Society (USA)
- Cave Research Foundation (USA)
- British Cave Research Association (UK)
- Australian Speleological Federation (Australia)
- La Società Speleologica Italiana (Italy)
- Verband der deutschen Hoehlen- und Karstforscher e.V. (Germany)
- Google Directory - Speleology – Organisations (mainly recreational caving)
- Central-Asian karstologo-speleological commission
