- Centre for European Policy Studies (CEPS)
- The European Policy Centre (EPC)
- Centre for European Reform (CER)
- Friends of Europe
- Open Europe
- EuropaNova
- Fondation Robert Schuman
- The European Network of Economic Policy Research Institutes (ENEPRI)
- Transeuropean Policy Studies Association (TEPSA)
- University Association for Contemporary European Studies (UACES)
- National Institute for Research Advancement (NIRA)
- Centre for the New Europe (CNE)
- Centre for European Integration Studies European Trade Union Institute (ETUI)
- Institute for European Environment Policy (IEEP)
- Royal Institute of International Affairs (RIIA)
- European Policy Institutes Network (EPIN)
- Civilitas Research: South East Europe
