Paris-Vallée de la Marne agglomeration community, the largest Seine-et-Marne agglomeration community in terms of number of inhabitants, jobs, businesses and students, asserts itself as a territory of future of Eastern Paris and Greater Paris. A key player in the economic development of eastern Paris, Paris-Vallée de la Marne promotes the creation and implementation of new activities. With an attractive territory, the reception, anchoring, innovation and development of businesses in the territory are priority issues. A center of excellence in Greater Paris, Cité Descartes is an innovation hub for the cities of tomorrow. This campus has nearly 700 companies, 19,000 students and teacher-researchers as well as around fifty research laboratories. Major schools are located there: Ecole des Ponts ParisTech and Gustave Eiffel University (Iffstar research center and the ESIEE Paris engineering schools, EIVP, and the archi school)