LEN is the governing body of the 50 national swimming federations in Europe. Their administrative headquarters are in Rome, Italy. The running of LEN is overseen by an elected Bureau composed of Members representing 13 different Federations. LEN oversees aquatic sports in Europe: diving, swimming, open water swimming, synchronized swimming and water polo.
LEN runs various competitions within Europe, these are:
LEN also runs various Cups in swimming and waterpolo as well as meets for junior swimmers.
The following national federations are part of LEN: