The Grands Sites de France network is financially supported by the Ministry for Ecology and Sustainable Development, the Ministry for Tourism and receives patronage from companies including the Fondation Gaz de France and the Caisse des Dépôts et Consignations.

The Grands Sites de France network coordinates The International Training and Exchange Centre for Francophone Heritage Sites' Managers . It is financially supported by the Ministry of Foreign Affairs, the Ministry of Culture and Communication.