Association of Exploration 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 information, event schedules, and association information.

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, up-coming conferences, and contact information for all Society members.

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.

Division of Geochemistry, American Chemical Society
Information on Division membership, newsletters, history, and meetings.

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 Association's working groups.

The International Mineralogical Association
This group promotes international cooperation in the mineralogical sciences by organizing meetings and field excursions and by sponsoring publications of mineralogical interest. Provides lists of individual national member groups, working research groups, council members, and bylaws.

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.

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.