The Yearbook of International Organizations provides the most extensive coverage of non-profit international organizations currently available.
Yearbook of International Organizations 2017-2018, Volume 3
The Union of International Associations (UIA) is a research institute and documentation centre, based in Brussels. It was founded over one hundred years ago, by Henri La Fontaine (Nobel Peace Prize laureate of 1913), and Paul Otlet, a founding father of what is now called information science. Non-profit, apolitical, independent, and non-governmental in nature, the UIA has been a pioneer in the research, monitoring and provision of information on international organizations, international associations and their global challenges since 1907. For more information, visit: http://www.uia.org