The American Association of Immunologists

Non-profit OrganizationsMaryland, United States51-200 Employees

The American Association of Immunologists (AAI) is a non-profit organization and the largest professional association of immunologists, with a global membership of more than 7,700 individuals from 71 countries. Based in Rockville, Maryland, the association pursues advances in immunology, facilitates the exchange of ideas among investigators, and considers how immunologic principles may be integrated into clinical practice. Members gain access to The Journal of Immunology, eligibility for travel and career awards, and opportunities to participate in committees, among other professional benefits tied to membership and conference activities.

Its constituency includes immunology researchers, clinicians, and trainees, including graduate students and recent postdocs who may hold Trainee memberships. The organization situates itself within the nonprofit, professional-society segment of the industry and maintains affiliations with federations such as FASEB and IUIS to broaden its reach. In 2026, AAI appointed Anand Balasubramani, PhD, as its inaugural Chief Scientific Programs Officer, reflecting a focus on expanding scientific programming within its portfolio.

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