In the past few years, our most important partners included various programs and agencies of the European Union (e.g. European Environmental Agency, European Commission Joint Research Centre). Our summer school was involved in disseminating the results of several EU research projects and extending their networks (New Exploratory Phase in Research on East European Cultures of Dissent (CA 16213), a COST Action and the Horizon 2020 Program Migration Solidarity and Acts of Citizenship along the Balkan Route, MIGSOL).

International organizations such as the Council of Europe, the Visegrad Fund, the United Nations (United Nations Development Program, United Nations Population Fund), and the International IDEA have contributed to training professionals in various fields. 

Academic cooperation with universities (Queen’s University, Canada) and research associations (the Society for Applied Philosophy, European Consortium for Political Research, Standing Group for Local Government and Politics, and the European Urban Research Association) helped create and deliver successful courses in political science. 
CEU is a consortium member of the European and Transnational Governance Network (ETGN), an executive education training initiative in public policy awarding a joint certificate. SUN contributes to the CEU course offerings with some of the program's policy-oriented courses.

Foundations like Friedrich Ebert Stiftung, Fritz Thyssen Foundation, Open Society Foundations, supported the program with their expertise and provided scholarships to ensure the diversity of the summer school. The Velux Foundations, the Roma Education Fund, and the Open Society Foundations’ Roma Initiatives Office have been providing ongoing support for our unique courses on Romani Identity issues. 

Several corporate partners supported technology related courses (Google, Airbus, ESRI, Maxar Technologies), while BlackRock offered scholarships for female entrepreneurs to promote gender equality. OeAD student housing, a non-profit Austrian company partnered with SUN to promote mutual application to OEAD summer courses as well as CEU summer courses.
We are grateful to all our sponsors whose support enabled us to invite participants from 80 different countries in 2019.