Organisations
- Archaeological Association Freising
- Bergwerksverein Silberleithe
- Cavebase Exploration
- Chiemgau Cave Bears
- DAV Cave Group Frankfurt/Main
- ECRA - European Cave Rescue Association
- Franconian Cave and Karst Research Group
- Mining Archaeology Society
- Hallstatt-Obertraun Caving Club
- Sonthofen Caving Club
- International Union of Speleology
- Karstgruppe Muhlbach
- Regional Association for Cave and Karst Research in Bavaria
- Regional Caving Association Salzburg
- Speleoclub Guano
- German Association of Cave and Karst Researchers (VdHK)
- Austrian Association of Cave Researchers
Photography
Shops
Technology & Knowledge
- AMAP Austria - Topographic map of all Austria 1:50,000
- BayernAtlas - Maps of Bavaria
- CaveMeter - Android app for cave surveying
- CopyCave - Free software for drawing cave maps
- CustomDUO - Upgrade for the Petzl DUO
- Germancavediving.de
- Paperless Cave Surveying - DistoX2
- Peter Hofmann: Tropfstein
- Peter Hofmann: Inntaler Unterwelten
- The Virtual Cave: Speleogenesis
