The International Union of Architects (French: Union internationale des Architectes, UIA) is the only international non-governmental organization that represents the world's architects, now estimated to number some 3.2 million in all. The UIA was founded in Lausanne, Switzerland, in 1948. The General Secretariat is located in Paris. It is recognized as the only global architecture organisation by most United Nations agencies, including UNESCO, UNCHS, ESOSOC, UNIDO, and the World Health Organization, as well as the WTO. The current (2017-2020) president is Thomas Vonier from the United States of America.