On the January 25th 2015, EYP Estonia, Estonian Debating Society, European House and Estonian School Student Councils’ Union signed a cooperation contract. The aim of the collaboration is to support each other’s activities and avoid the time overlapping of different events. Also the organisations are constantly looking for opportunities to cooperate with different projects. For example in the summer of 2015 all four organisations went to the Opinion Festival, where they together organised activities in the simulations tent.