Formed in 1982 as an umbrella organization for several Muslim professional groups originating in the Muslim Student Association, including the Association of Muslim Social Scientists, the Association of Muslim Scientists and Engineers, and the Islamic Medical Association. Various Muslim communities and mosques have also affiliated themselves with the society. Headquartered in Plainfield, Indiana, the society includes the following units: Islamic Teaching Center, Islamic Schools Department, Membership and Field Services Department, Convention and Audiovisual Department, and Publications Department. Its policy-making bodies are the Consultative Council and Executive Council. The society has a membership and support base of about four hundred thousand, and the leadership is drawn primarily from Muslim immigrant communities, although the number of native-born American Muslims is growing.