OMS is an educational and scientific organization. Its mission is to study, collect, and identify fungi, to educate members and the public in fungi identification, and to promote health and safety in the gathering and consumption of fungi.

Membership is open to anyone who is interested in mycology (the branch of science dealing with the study of fungi). Members enjoy exclusive access to online content and announcements, field trips, and mycology camps to learn from knowledgeable identifiers.