International Institute for the Unification of Private Law was created in 1926.
International Institute for Conservation was created in 1950.
Institute of International Education was created in 1919.
International Gemological Institute was created in 1975.
International Statistical Institute was created in 1885.
International Maritime Institute was created in 1991.
International Patent Institute was created in 1947.
Institute for International Research was created in 1973.
International Mediation Institute was created in 2007.
International African Institute was created in 1926.
International Republican Institute was created in 1983.
International Press Institute was created in 1950.
International Film Institute was created in 2009-06.