Institutional and economic partners have supported the Pôle Mer Bretagne since it received government recognition in July 2005.

• Ministère de la Défense - French Ministry of Defence

• Datar - French regional government enterprise agency

• Direccte Bretagne - French government regional department for industry, research and environment

• Conseil régional de Bretagne - Brittany Regional Council

• Brest Métropole Océane - Brest Urban Community Council

• Conseil général des Côtes d’Armor - Côtes d'Armor District Council

• Conseil général du Finistère - Finistère District Council

• Conseil général d’Ille-et-Vilaine - Ille-et-Vilaine District Council

• Conseil général du Morbihan - Morbihan District Council

• Conseil régional de Basse-Normandie - Basse-Normandie Regional Council

Members of the Pôle play a role in running the organisation and second staff to sit on its Engineering and Coordinating Team. They are major stakeholders from industry and research and from bodies supporting economic development, enterprise and innovation.

• DCNS - Naval construction company

• Thales - Aerospace company

• Ifremer - French marine research institute

• Veolia - Environmental services company

• Chambre de commerce et d’industrie de Brest - Brest Chamber of Commerce and Industry

• Technopôle Brest-Iroise - Brest-Iroise Technopole

• Technopole Quimper-Cornouaille - Quimper-Cornouaille Technopole

• Audélor-Lorient Technopole Innovation - Audélor-Lorient Innovation Technopole

• Technopole de Rennes Atalante, site de Saint-Malo Agglomération - Rennes Atalante Technopole, Saint Malo site

• Anticipa - Industrial Technopole

• Miriade - Basse-Normandie enterprise agency

• Ensieta - Advanced weapons technology institute

• Station Biologique de Roscoff - Roscoff biological research station

• UBO - University of Bretagne Occidentale