| Name | Institution | Location | Representing |
| Andrew Gettelman | Pacific Northwest National Lab | USA | Co-Chair |
| Pier Luigi Vidale | Univ. Reading | UK | Co-Chair |
| Claas Teichmann | Helmholtz-Zentrum Hereon | Germany | RIfS-CORDEX (regional) |
| Daniel Klocke | MPI-Met | Germany | GEWEX (GASS) |
| Dai Yamazaki | Univ. Tokyo | Japan | GEWEX-GLASS (Land) |
| Svetlana Jevrejeva | National Oceanography Centre | UK | CLIVAR (Ocean) |
| Hella Garny | DLR | Germany | SPARC |
| Camille Lique | IFREMER | France | CLiC-Hi Res Ice |
| Helene Seroussi | Dartmouth Univ | USA | |
| Ariane Frassoni | INPE | Brazil | ESMO-WGNE |
| Linus Magnusson | ECMWF | UK | WWRP |
| Pascale Braconnot | IPSL | France | WCRP JSC |
| Christian Jakob | Monash Univ | Australia | Former Co-Chair |
| Cathy Hohenegger | MPI-Met | Germany | km-scale activity lead |
| Andreas Prein | NCAR | USA | Activity Lead: beyond phys system |
| Peter Dueben | ECMWF | UK | Origitnal SSG |
| Brian Lawrence | Univ. Reading | UK | Infrastructure |
| Mark Govett | NOAA | USA | Original SSG |
| Martin Visbeck | Geomar | Germany | Original SSG |
| Aneesh Subramanian | Univ. Colorado | USA | Activity Lead: DA |
