COSI is a non-governmental organization that focuses on promoting tolerance, inter-cultural dialogue, and social integration. They aim to overcome social exclusion by implementing coherent social, educational, and civic initiatives. COSI supports and assists disadvantaged individuals in Bucharest and its surrounding areas by providing necessary benefits and services such as clothing, food, hygiene items, and school supplies.

Their humanitarian aid actions aim to improve the standard of living and facilitate reintegration into society or the educational system. Additionally, COSI conducts civic education activities to raise awareness among the general population, especially the NEET youth, about societal factors that hinder equal rights and non-discrimination. They promote values such as human rights, solidarity, volunteering, active citizenship, intercultural acceptance, and tolerance while combating racism, xenophobia, social inequality, poverty, and exclusion.

COSI also focuses on introducing intercultural, non-formal education to foster critical, open, and creative thinking among young Romanians. Through international mobility projects like ErasmusPlus and the European Solidarity Corps, they encourage a sense of belonging to EU values. Furthermore, COSI collaborates with educational institutions in Bucharest to conduct non-formal and intercultural educational workshops