Clayton County Cavers
- Located in Morrow and affiliated with the National Speleological Society. Dedicated to discovery, exploration and conservation. Contact information only.
- http://www.caves.org/io/iolookup.php?ionum=000285

Middle Georgia Grotto of the NSS
- Group based in Byron offers exploration and mapping trips, mainly in the Southeastern United States. Includes trip reports, photos, and contact information.
- http://www.caves.org/grotto/mgg/

ORGT Caving
- Outdoor Recreation at Georgia Tech provides instruction, trips and equipment for students, faculty, staff and alumni. Includes photos and contact information.
- http://www.cyberbuzz.gatech.edu/orgt/caving.html

Southeastern Cave Conservancy
- Incorporated in Walker County, Georgia. Formed to acquire and manage caves for scientific study, research and conservation. Institutional member of the NSS. Includes contact information.
- http://www.scci.org/

Georgia Speleological Survey
- Features the archival organization for the exploration, documentation, and study of caves in the state.
- http://www.caves.org/survey/gss/

The Dogwood City Grotto
- Based in Atlanta and affiliate of National Speleological Society. Includes photo gallery, meeting and contact information. Requires password entry for DCG members.
- http://www.dcg-nss.org/