The materiality analysis allowed us to prioritize the main CSR issues in consultation with identified stakeholders from schools at the European level. The benchmark study was carried out in partnership with five organizations and involved questioning 480 stakeholders on their vision of 18 sustainable development issues. The study revealed that issues concerning working and learning conditions, education of sustainability, and equal opportunities are a priority within schools. However, environmental issues are considered to be less of a priority. Training centers have a low environmental impact but play a continual role in public awareness and education.