Cross-sectoral cooperation means that multiple stakeholders from outside the education sector are engaged to create an alliance or network of different individuals, organizations and sectors with diverse perspectives and resources to address complex challenges more effectively. Schools by themselves are not always able to solve problems with serious social, economic, health or psychological roots. Although providing support at school level for students at risk of early school leaving is essential, using only pedagogical tools is not sufficient if we seek to provide a support system that is able to react to complex, interconnected causes. Cross-sectoral cooperation means that other sectors, such as health care, social authorities and, people in local employment or sporting groups, etc. would cooperate to prevent early school leaving and to support students at risk. Research shows that diverse sectors working together with a common strategy towards the same goal can make a much greater difference.