Union of International Associations
The Union of International Associations (UIA) is a non-profit non-governmental research institute and documentation center based in Brussels, Belgium, and operating under United Nations mandate. It was founded in 1907 under the name Central Office of International Associations by Henri La Fontaine, the 1913 Nobel Peace Prize laureate, and Paul Otlet, a founding father of what is now called information science.
Source: Wikipedia — Union of International Associations (CC BY-SA 4.0)