Obessu (Organising Bureau of European School Student Unions) is the platform for cooperation between national school student unions active in secondary education in Europe. It brings together 25 independent Member and Candidate Organisations from all over Europe. Part of their mission is to empower young people to take active part in democratic society in general and in their schools in particular. The connection between non-formal and formal education is central to their work.
Read more about the organisation: http://www.obessu.org/