International Triathlon Union was created in 1989.
International Telecommunication Union is the leading United Nations agency for information and communication technologies International Triathlon Union
International Democrat Union was created in 1983.
Union of International Associations was created in 1907.
International Vegetarian Union was created in 1908.
International Mathematical Union was created in 1919.
International Gas Union was created in 1931.
International Seamen's Union was created in 1892.
International Typographical Union was created in 1852.
International Skating Union was created in 1892.
International Labor Union was created in 1878.
International Astronomical Union was created in 1919.
International Philatelic Union was created in 1881.