- American Association of Petroleum Geologists
- American Geological Institute
- American Geophysical Union
- American Institute of Professional Geologists
- American Rock Mechanics Association
- American Society of Civil Engineers
- Association of American Geographers
- Association of American State Geologists
- Association of Engineering Geologists
- Board of Earth Sciences and Resources
- British Geological Survey
- British Geomorphological Research Group
- California Council of Geoscience Organizations
- Desert Research Institute
- Dibblee Geological Foundation
- Earthquake Engineering Research Institute
- Engineering Geology Division of the Canadian Geotechnical Society
- Eros
- Geo-Institute of ASCE
- Geological Association of Canada
- Geological Society of London
- Geomorphology Specialty Group of AAG
- GNDCI Information System
- Hazards Specialty Group of AAG
- International Association for Engineering Geology and the Environment
- International Landslide Research Group
- International Union of Geological Sciences
- Landslide News
- Military Geography Specialty Group, AAG
- National Information Service for Earthquake Engineering
- National Ground Water Association
- National Science Foundation
- National Soil Mechanics Center
- Natural Hazards Research and Applications Information Center
- International Society for Rock Mechanics
- Sacramento Section of the AEG
- Seismological Society of America
- Southern California Earthquake Center
- United States Geological Survey
- Western States Seismic Policy Council
