Institute of Race Relations was created in 1958.
Institute of Pacific Relations was created in 1925.
Chartered Institute of Public Relations was created in 1948.
Tbilisi State Institute of Economic Relations was created in 1992.
Institute of International Education was created in 1919.
International Mediation Institute was created in 2007.
International Patent Institute was created in 1947.
International Maritime Institute was created in 1991.
Institute for International Research was created in 1973.
International African Institute was created in 1926.
International Republican Institute was created in 1983.
International Institute for Conservation was created in 1950.