- Boston Mycological Club
 - Centraalbureau voor Schimmelcultures (CBS)
- Contributes to the knowledge of fungal biodiversity through the study of taxonomic and phylogenetic relationships, especially of filamentous fungi and yeasts.
- Mycological Society of America
- Description of society activities and links to mushroom and research sites.
- Mycological Society of San Francisco
- To promote the study and exchange of information about mushrooms.
- North American Mycological Association
- Working to promote, pursue, and advance the science of mycology.
 North West Fungus Group
- Amateur fungus recording group based in the Northwest of England and Wales, U.K. Includes articles from the newsletter, fungus facts, images of fungi, etc.- Northeast Mycological Federation, Inc
- In Vermont. registration, faculty and programme information for the 1996 NEMF/NAMA Foray.
- Puget Sound Mycological Society
- PSMS supports research, education and amateur enjoyment in the field of mushrooming.
- Sonoma County Mycological Association
- Includes events calendar, news, and more.
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