Since the end of the 1990s, Demand Responsive Transport (DRT) has greatly increased in France. This transportation mode, halfway between bus systems and taxis, is used by different French transport authorities for its flexibility and its adaptability. It is either integrated into existing transportation networks or constitutes new networks. This paper analyses the growth of this transportation mode over the last four decades through the actors and the logics which contribute to the implementation of these services. The paper questions the way DRT contributes to the constitution of a more global public transportation network and its future development.