- KIS – Kiepenheuer-Institut für Sonnenphysik, Germany
- IAC – Instituto de Astrofísica de Canarias, Spain
- CEA – Commissariat à l’Énergie Atomique et aux Énergies Alternatives, France
- MPG – Max-Planck-Gesellschaft zur Förderung der Wissenschaften, Germany
- INAF – Istituto Nazionale di Astrofisica, Italy
- KU LEUVEN – Katholieke Universiteit Leuven, Belgium
- OBS PARIS – Observatoire de Paris, France
- CAUP – Centro de Astrofisica da Universidade do Porto, Portugal
- UOB – University of Birmingham, United Kingdom
- AU – Aarhus Universitet, Denmark
- UPS – Université Paris-Sud / Institute Astrophysique Spatial, France
- CSIC – Consejo Superior de Investigaciones Cientificas / Instituto de Astrofisica de Andalucia, Spain
- KB – Det Kongelige Bibliotek – Nationalbibliotek og Kobenhavns Universitetsbibliotek / Royal Library, Denmark
- MTA CSFK – Magyar Tudomanyos Akademia Csillagaszati Es Foldtudomanyi Kutatokozpont / Konkoloy Observatory, Hungary
- AURA NSO – National Solar Observatory, United States of America
- UCAR – University Corporation for Atmospheric Research / High Altitude Observatory, United States of America
- UPST – Université Paul Sabatier Toulouse III, France