International Union of Police Associations was created in 1954.
Union of International Associations was created in 1907.
Mechanics' Union of Trade Associations was created in 1827.
Union Internationale des Associations d'Alpinisme was created in 1932.
International Democrat Union was created in 1983.
International Seamen's Union was created in 1892.
International Gas Union was created in 1931.
International Philatelic Union was created in 1881.
International Vegetarian Union was created in 1908.
International Mathematical Union was created in 1919.
International Labor Union was created in 1878.
International Skating Union was created in 1892.
International Astronomical Union was created in 1919.