The Intermunicipal Community of Alto Minho, founding partner of the EGTC Rio Minho, comprises the municipalities that correspond to the Level III Territorial Unit for Statistics (NUT III) of Alto Minho: Arcos de Valdevez, Caminha, Melgaço, Monção, Paredes de Coura, Ponte da Barca, Ponte do Lima, Valença, Viana do Castelo and Vila Nova de Cerveira.
Deputación de Pontevedra, founding partner of the EGTC Rio Minho, responsible for the administration of the Province of Pontevedra. Of the 61 Galician municipalities that constitute the Deputación de Pontevedra, 16 belong to the territory of the EGTC Rio Minho: A Guarda, Arbo, As Neves, A Cañiza, Covelo, Crecente, Mondariz, Mondariz-Balneario, Oia, O Porriño, O Rosal, Ponteareas, Salceda de Caselas, Salvaterra de Miño, Tomiño and Tui.
The Association of European Border Regions, to which the EGTC Rio Minho has been associated since July 2020, is an organization whose objective is to represent the interests of European border and cross-border regions at European, national and regional levels.
Platform managed by the European Committee of the Regions. There are currently 81 European Groupings of Cross-Border Cooperation registered in the European Union, the EGTC Rio Minho was the 72nd registered.
