Association of Applied Geochemists
- International organization specializing in the field of exploration and applied geochemistry (past publisher of Journal of Geochemical Exploration; current publisher of Geochemistry: Exploration, Environment, Analysis). Site has membership and journal inf
- http://www.appliedgeochemists.org/

The International Mineralogical Association
- Promotes international cooperation in the mineralogical sciences by organizing meetings and field excursions and by sponsoring publications. Provides lists of individual national member groups, working research groups, council members, and bylaws.
- http://www.ima-mineralogy.org

The Meteoritical Society
- An international non-profit organization of meteorite and small solar system body researchers. Membership information, list of upcoming meetings, newsletters, and links to members and related organizations.
- http://www.meteoriticalsociety.org/

AGU Biogeosciences Section
- Section of the American Geophysical Union integrating the role played by biology into the scientific study of the Earth and other planets. Areas emphasized include biogeochemistry, biogeophysics, and planetary ecosystems.
- http://biogeosciences.agu.org/

Association of Petroleum Geochemical Explorationists
- Professional organization dedicated to the development and advancement of surface and near-surface geochemical exploration for oil and gas. Provides publication and membership information, history, and contacts.
- http://www.geotech.org/index.html

International Association of Geochemistry and Cosmochemistry
- A non-profit society affiliated with the International Union of Geological Sciences, and publisher of the research journal Applied Geochemistry. Society history, membership and journal information, schedules of meetings, and descriptions of the Associatio
- http://www.cevl.msu.edu/~long/IAGC/welcome.html

Division of Geochemistry, American Chemical Society
- Information on Division membership, newsletters, history, and meetings.
- http://membership.acs.org/G/GEOC/

European Association of Organic Geochemists
- An international association based in The Hague, the EAOG publishes the academic journal Organic Geochemistry. Membership information, schedules of meetings, and a newsletter archive.
- http://www.eaog.org/

The Geochemical Society
- Non-profit international society encompassing all aspects of geochemistry. Publisher of The Geochemical News, and co-sponsor of the research journals Geochimica et Cosmochimica Acta, and Reviews in Mineralogy and Geochemistry. Information on membership, u
- http://gs.wustl.edu/