| | | Institution | | | | |
| | Austria | | | | | |
| | 
| Karl-Franzens-Universität Graz | | Prof. Walter Kurz (MC Member, WG 2) Prof. Christoph Hauzenberger (MC Substitute) |  | |
| | Bulgaria | | | | | |
| |  | Bulgarian Academy of Sciences | | Prof. Philip Philipoff (MC Member) Petar Mandiev (MC Substitute) | | |
| | Cyprus | | | | | |
| |  | Cyprus Geological Survey | | Dr. Zomenia Zomeni (MC Member, WG 2) Dr. Sylvana Pilidou (MC Member, WG 1) |  | |
| | Denmark | | | | | |
| | 
| Center for Geomicrobiology (Åarhus University ) | | Dr. Mark Alexander Lever (MC Member, WG 3) Prof. Bo Barker Jørgensen (MC Member, WG 3) | | |
| | France | | | | | |
| | 
| Institute Universitaire Européen de la mer | | Dr. Mark André Gutscher (MC Member, WG 4) |  | |
| | 
| Centre Européen de Recherche et d'Enseignement de Géosciences de l'Environnnement | | Dr. Pierre Henry (MC Member, WG 1) |  | |
| | 
| Université des Antilles et de la Guyane | | Dr. Arnauld Heuret (MC Substitute) |  | |
| | fYR Macedonia | | | | | |
| | 
| "Goce Delcev" University | | Dr. Marjan Delipetrev (MC Member, WG 1) |  | |
| | Germany | | | | | |
| | 
| GEOMAR Helmholtz Centre for Ocean Research Kiel | | Dr. Christian Hensen (MC Chair) Dr. Mark Schmidt (MC Substitute, WG 4) Prof. Dr. Colin Devey (MC Substitute, WG 2) Dr. Volker Liebetrau (WG 1) |  | |
| | 
| Universität Bremen | | Prof. Heinrich Villinger (MC Member, WG 1) |  | |
| |  | Marum | | Dr. Marcus Elvert (MC Member WG 3) Prof. Dr. Achim J. Kopf (WG 2, WG 3) |  | |
| | Greece | | | | | |
| | 
| HCMR Hellenic Centre for Marine Research | | Dr. Aristomenis Karageorgis (MC Member, WG 3) Dr. Dimitris Sakellariou (MC Member, WG 1, WG 2) Dr. Grigoris Rousakis (MC Substitute) |  | |
| | 
| Ionian University | | Dr. Markos Avlonitis (MC Substitute, WG 1) |  | |
| | Italy | | | | | |
| | 
| ISMAR- CNR (Instituto di Scienze Marine - Consiglio Nazionale delle Ricerche) | | Dr. Alina Polonia (MC Member, WG 1, WG 2) Dr. Marco Ligi (MC Substitute) Dr. Luca Gasperini (MC Member, WG 4) |  | |
| |  | INGV - Istituto Nazionale di Geofisica e Vulcanologi | | Dr. Francesco Italiano (WG 1, WG 3) |  | |
| |  | OGS - Istituto Nazionale di Oceanografia e di Geofisica Sperimentale | | Dr Umberta Tinivella (WG 2) |  | |
| | Malta | | | | | |
| | 
| University of Malta | | Dr Sebastiano D'Amico (MC Member, WG 1) |  | |
| | Netherlands | | | | | |
| | 
| Universiteit Utrecht | | Prof. Gert De Lange (MC Member) Prof. Wim Spakman (MC Substitute, WG 2) |  | |
| |  | Royal Netherlands Institute for Sea Research | | Prof. Gert Jan Reichart (WG 1, WG 3) | | |
| | Norway | | | | | |
| | 
| University of Oslo | | Dr. Sverre Planke (MC Member) Dr. Adriano Mazzini (MC Member, WG 3) |  | |
| |  | Geological Survey of Norway - NGU | | Dr. Antoine Cremiere (WG 1) |  | |
| | Portugal | | | | | |
| | 
| Instituto Dom Luiz | | Dr. Luis Matias (MC Member, WG 1) Dr. Joao Duarte (WG 3) | | |
| | 
| Universidade Aveiro | | Prof. Luis Pinheiro (MC Member, WG 2, WG 3, WG 4) Dr. Marina R. Cunha (WG 1) |  | |
| |  | IPMA - Instituto Portugues do Mar e da Atmosfera | | Dr. Vitor Hugo Magalhães (WG 1, WG 2) Dr. Pedro Terrinha (WG 2) |  | |
| | Spain | | | | | |
| |  | Universidade de Vigo | | Dr. Maite de Castro (MC Substitute) | | |
| | 
| Consejo Superior de Investigaciones Cientificas | | Dr. Rafael Bartolomé (MC Member) Dr. Eulàlia Gràcia (MC Member, WG 2) Prof. Cesar R. Ranero (MC Substitute, WG 1, WG 2) Dr. Carlos J. Garrido (WG 1) Dr. Francisca Martinez Ruiz (WG 1) Dr. Sara Martinez-Loriente (WG 2) |  | |
| | Switzerland | | | | | |
| | 
| Eawag | | Prof. Rolf Kipfer (MC Member, WG 2, WG 3) Dr. Yama Tomonaga (MC Member, WG 3) |  | |
| |  | University of Geneva | | Dr. Matteo Lupi | | |
| | Turkey | | | | | |
| | 
| Hacettepe University | | Prof. Galip Yuce (MC Member, WG 1, WG 3) |  | |
| |  | Istanbul Technical University | | Prof. Namik Cagatay (MC Member, WG 1, WG 3) | | |
| | UK | | | | | |
| | 
| Royal Holloway University of London | | Dr. Paola Vannucchi (MC Member, WG 1, WG 2) Prof. Jason Morgan (WG 1, WG 2) |  | |
| |  | Intergrated Geochemical Interpretation | | Dr. Marianne Nuzzo (MC Member) | | |
