The mission of the European Set Theory Society is to strengthen set-theoretical research and scholarship in Europe. You can find more information about the European Set Theory Society in the Mission Statement and the Constitution.
The European Set Theory Society was founded in 2007 at the first European Set Theory Conference in Bedlewo, Poland.
The European Set Theory Society is an Associate Corporate Member of the European Mathematical Society.
The Society gives biennial Hausdorff medals for the most influential work in set theory published in the five years preceding the medal.