Project Partners
| Institution | Initials | Country | Contact Person |
| National University of Ireland, Galway (Coordinator) | NUIG | Ireland | Colin O'Dowd |
| Netherlands Organization for Applied Research | TNO | Netherlands | Gerrit de Leeuw |
| Institute of Atmosphere Science & Climate | CNR-ISAC | Italy | Maria Cristina Facchini |
| University of Helsinki | UHel | Finland | Markku Kulmala |
| University of Kuopio | UKU | Finland | Ari Laaksonen |
| Finnish Meteorological Institute | FMI | Finland | Veli-Matti Kerminen |
| University of Manchester | UMAN | UK | Gordon McFiggans |
| University of York | UoY | UK | Lucy Carpenter |
| University of East Anglia | UEA | UK | Peter Liss |
| Stockholm University | SU | Sweeden | Douglas Nilsson |
| University of Heidelberg | UHEI.IP | Germany | Ulrich Platt |
| Max Planck Institute for Nuclear Physics | MPG-MPIK | Germany | Frank Arnold |
| University of Mainz | JGUM | Germany | Thorsten Hoffmann |
| Joint Research Centre | JRC | European Commission | Frank
Dentener (Jean-Philip Putaud) |
| University of Crete | UoC | Greece | Euripides Stephanou (Maria Kanakidou) |
| Polytechnic University of Marche | UNIVPM | Itlay | Roberto Danovaro |