| No. | Name | Short name | Country | PIs |
| 1 | Max Planck Gesellschaft | MPG | Germany | |
| 1.1 (coord.) | <a class="external-link-new-window" href="http://www.mpimet.mpg.de">Max Planck Institute for Meteorology</a> | MPI-M | Germany | Hauke Schmidt, Claudia Timmreck |
| 1.2 | <a class="external-link-new-window" href="http://www.mpch-mainz.mpg.de">Max Planck Institute for Chemistry</a> | MPI-C | Germany | Mark Lawrence, Andreas Baumgaertner |
| 2 | <a class="external-link-new-window" href="http://www.lsce.ipsl.fr">Laboratoire des Sciences du Climat et l'Environnement</a> (CEA/CNRS) | CEA | France | Michael Schulz |
| 3 | <a class="external-link-new-window" href="http://www.uio.no/english">University of Oslo</a> | UiO | Norway | Jon Egill Kristjansson |
| 4 | <a class="external-link-new-window" href="http://www.cicero.uio.no/home/index_e.aspx">Center for International Climate and Environmental Research</a> | Cicero | Norway | Asbjorn Aaheim |
