This is ESHA

ESHA, the European School Heads Association, is a professional organization for European School Heads. Members of ESHA are national organisations for school heads and deputy school heads within (pre-) primary, secondary and vocational education. Nearly all European countries (both EU and non-EU) are represented within ESHA by one or more organisations.
ESHA is an international community in which experiences, visions and views between members are exchanged and in which new ideas are born. ESHA connects school leaders, researchers and policy makers with the collective aim to learn from each other and improve education.