Crédit maritime mutuel is provided by four categories of credit institutions affiliated to the central body for savings banks and popular banks:
1. Regional caisses de crédit maritime mutuel ;
2. Unions de crédit maritime mutuel, which regional mutual banks may form between themselves with, where appropriate, groupings such as those defined in Article L. 512-74;
3 (Repealed)
4. The banques populaires governed by articles L. 512-2 to L. 512-13;
5. Mutual guarantee companies governed by Articles L. 515-4 to L. 515-12 and belonging to the banques populaires network in accordance with Article L. 512-11.
Crédit Maritime Mutuel has a central society which is a social economy union. It represents Crédit Maritime Mutuel within the national or regional entities of the maritime sector.
The composition and distribution of the share capital of the société centrale de crédit maritime mutuel are governed by article 19 bis of law no. 47-1775 of 10 September 1947 on the status of cooperation. The regional caisses and the unions de crédit maritime mutuel must hold the majority of the capital and voting rights of this company.