- Center for Cave and Karst Studies - A division of Western Kentucky University offering educational courses regarding the environmental aspects of caves and karst
- Missouri Caves and Karst Conservancy - Devoted to protect and conserve Missouri's cave and karst.
- National Caving Association - The National Body for caving in England, Scotland and Wales
- The National Speleological Society - The NSS is a non-profit organization dedicated to the preservation of caves and cave resources.
- NSS Cave Conservation and Management Section Home Page - National Speleological Society Section dedicated to disseminating information about cave conservation and management.
American Cave Conservation Assoc. Inc.
P.O. Box 409
Horse Cave, KY 42749-0409
National Speleological Society Inc.
Huntsville, AL 35810-4431