Since the origin of the Institute, the teams of I-Stem answered to relevant and competitive calls for offers, at the regional (ASTRE to the General Council of Essonne, SESAME, DIM Biotherapies and fellowships of the Paris Area Regional Council, Cluster Medicen Paris-Region), national (National Research Agency, Grand Emprunt national) and international (Framework programs of the European Commission). In all cases, the contracts obtained rest on partnerships associating the teams of I-Stem with many teams, academic and industrial.