In addition to the participation of the institutional Focal Points, many partners and contributors have supported the implementation of the MedPosidonia Project:

• Ministère de l’Aménagement du Territoire, de l’Environnement et du Tourisme (MATET, Algeria)
• Conservatoire National des Formations à l’Environnement (CNFE, Algeria)
• Club Scientifique de Plongée de Constantine (CSPC, Algeria)
• Environment General Authority (EGA, Libya)
• Agence de Protection et d’Aménagement du Littoral (APAL, Tunisia)
• Institut National des Sciences et Technologies de la Mer (INSTM, Tunisia)
• Ministry of Environment and Forestry - General Directorate of Nature Conservation & National Parks (Turkey)
• Istanbul University - Fisheries Faculty (Turkey)
• Middle East Technical University - Institute of Marine Sciences (Turkey)
• Université de Corse « Pascal Paoli » - Equipe Ecosystèmes Littoraux (EqEL, France)
• Université Tunis El-Manar - Faculté des Sciences de Tunis (FST, Tunisia)
• NAUTILUS Cooperative Society (Italy)
• OKIANOS Environmental Expertise and Training (Tunisia)
• SUBEX Underwater Surveys (Tunisia)
• Bizerte Marine (Tunisia)