The objective of the article is to evaluate the resiliency of a territory facing economical disruptions, (the urban area of Montpelier) through the study of the morphology of the networks of local businesses. To realize this analysis, we took a census of the common application for patents of the innovative local businesses. This approach allowed a modelling of these networks with the theory of graphs over several temporal zones. In the end, this analysis allows to forefront the role played by key-businesses in the resiliency of a territory, namely in terms of perennity of its innovative entrepreneurial fabric but also at the employment level.