The aim of this contribution analyses how mains collective organizations territorialized forms (COTF) in farming and fishing supply chains participates in a more sustainable relocation of food systems in Pays de la Loire region. More exactly, we try to show how proximity supply chains are building crossing of organizational and spatial logics. To do this, our reflexion leans on two COTF cases. The first case named Bio Loire Ocean, joins about sixty organic farmers engaged in an organic fruits and vegetables supply chain structuring. The second case, a community support fishing between Yeu-Nantes, organizes a short food supply chain between Yeu’s island fishermen and Nantes’ city consumers
