Membership in the International Organization for Mycoplasmology supports the organization and its activities as well as provides benefits to the scientist working with the Mollicutes. Membership is open to anyone who is interested in the objectives of the organization. Benefits include a quarterly newsletter, IOM Directory and IRPCM report. Access to the Members-only section of the IOM Website is also included. This access entitles the member to internet access to the membership directory, the governance documents and other related documents, career information, online renewal, and IRPCM documents.

Any regularly matriculated student majoring in mycoplasmology, microbiology or related fields shall be eligible for election as a Student member with all of the rights and privileges as regular members. Certification of the applicant's status as a full time student may be given in writing by the Chair of the Department in which the student is enrolled. Letters of certification must be forwarded to the IOM Treasurer at the time dues payments are made.