Members that have signed the Membership Agreement and are part of the Steering Committee
last update 2020 Nov 9th
| Name | Acronym | Country |
| Biodiversity Research Institute | BRI | USA |
| Environment and Climate Change Canada | ECCC | Canada |
| Finnish Meteorological Institute | FMI | Finland |
| Géosciences Environment Toulose | GET | France |
| Helmholtz Centre for Materials and Coastal Research | HZG | Germany |
| Global Change Research Institute | CzechGlobe | Czech Republic |
| Institut “Jozef Stefan” | JSI | Slovenia |
| Institut des Géosciences de l’Environnement | IGE | France |
| Institut Français de Recherche pour l’Exploitation de la Mer | IFREMER | France |
| Institute of Geochemistry, Chinese Academy of Sciences | IG, CAS | China |
| Instituto de Investigaciones en Biodiversidad y Medioambiente | INIBIOMA-CONICET | Argentina |
| Limnological Institute Siberian Branch Russian Academy of Sciences | LIN SB RAS | Russia |
| Littoral Environnement et Sociétés | LIENSs | France |
| Lumex-marketing LLC | LUMEX | Russia |
| Mediterranean Institute of Oceanography | MIO | France |
| South African Weather Service | SAWS | South Africa |
| Tsinghua University | TU | China |
| U.S. National Atmospheric Deposition Program | NADP | USA |
| Université de Pau et des Pays de l’Adour | IPREM | France |
| University of York | UoY | United Kingdom |
| CNR-Institute of Atmospheric Pollution Research | CNR-IIA | Italy |