Dresden Höhlenforschergruppe - Formed in 1962. Features excursions, bus tours, lectures and training courses. Includes history of HFG, membership, finances and contact information. [German and English].
The German Speleological Federation - Formed in 1955 and registered in Munich to survey and protect karst phenomena. Conducts annual national congress, a forum for exchange of ideas and lectures. Issues publications and maintains library. Includes contact information. [German, English and French].
International Speleological Alpine Karst Group (ISAAK) - Founded in 1988 to explore alpine karst phenomena. Includes membership requirements, calendar of events, photos, scientific journal and contact information. [German and English].
Speläoclub Berlin (SCB) - Involved in surveying projects in Switzerland, Thuringia and Bavaria. Includes list of publications, accommodations and contact information. [German and English].
