Since the beginning of 2005, the French government supports collaborative innovative projects involving actors of public and private research through the competitiveness cluster policy (pôles de compétitivité). By these projects we aim to offer an original approach of the impact of the cluster policy on the organization and the intensity of innovation network (on the overall French territory). Concretely, the present paper analyses the evolution (from 2005 to 2010) of the French collaborative network of innovation, by scanning collaborative projects funded by the FUI. Our main research interest lies in testing whether the network progressively gets connected, concentrated, clustered around some (specific?) competitiveness clusters or if, on the contrary, it extends on the French territory, actors building collaborations with intra but also extra- competitiveness clusters? members and becoming more loosely-coupled to one another. We are also interested in analyzing the existence/creation/disappearance of innovative cohesive groups within the overall network. We privilege a social network analysis for our empirical study. It enables us to calculate and follow the evolution of indicators depicting at the same time the structure and spread of the network, and the respective positions of nodes within the network. An its allow us to characterize the impact (if any) of the competitiveness cluster policy on the organization and the intensity of innovation on the French territory.