Independent Association of Preparatory Schools was created in 1892.
Association of Governing Bodies of Independent Schools was created in 2002.
Association of Independent Methodists was created in 1965.
Independent Basketball Association was created in 2011.
Association of Independent Museums was created in 1977.
Independent Unionist Association was created in 1937.
Independent Voters Association was created in 1918.
Independent Citizen's Association was created in 1940.
Independent Softball Association was created in 1984.
Connecticut Association of Schools was created in 1921.
Eight Schools Association was created in 1973.
Girls' Schools Association was created in 1974.
Association of Muslim Schools was created in 1989.