- University of Vienna - Vienna, Austria
- University of Innsbruck - Innsbruck, Austria
- Ghent University - Ghent, Belgium
- KU Leuven - Leuven, Belgium
- University of Sofia - Sofia, Bulgaria
- University of Zagreb - Zagreb, Croatia
- Charles University - Prague, Czech Republic
- University of Copenhagen - Copenhagen, Denmark
- Aalto University - Espoo, Finland
- University of Helsinki - Helsinki, Finland
- University of Paris - Paris, France
- Sorbonne University - Paris, France
- Ludwig Maximilian University of Munich - Munich, Germany
- Humboldt University of Berlin - Berlin, Germany
- National and Kapodistrian University of Athens - Athens, Greece
- University of Iceland - Reykjavik, Iceland
- Trinity College Dublin - Dublin, Ireland
- University College Dublin - Dublin, Ireland
- University of Milan - Milan, Italy
- University of Bologna - Bologna, Italy
- University of Latvia - Riga, Latvia
- Vilnius University - Vilnius, Lithuania
- University of Luxembourg - Luxembourg City, Luxembourg
- University of Malta - Msida, Malta
- University of Groningen - Groningen, Netherlands
- University of Amsterdam - Amsterdam, Netherlands
- University of Oslo - Oslo, Norway
- University of Warsaw - Warsaw, Poland
- University of Porto - Porto, Portugal
- University of Bucharest - Bucharest, Romania
- Lomonosov Moscow State University - Moscow, Russia
- University of Belgrade - Belgrade, Serbia
- Comenius University - Bratislava, Slovakia
- University of Ljubljana - Ljubljana, Slovenia
- University of Barcelona - Barcelona, Spain
- University of Madrid - Madrid, Spain
- University of Madrid - Madrid, Spain
- Lund University - Lund, Sweden
- University of Zurich - Zurich, Switzerland
- University of Geneva - Geneva, Switzerland