International audienceThe proposed article aims to show which aspects of organizational skills contribute to successfully maintaining an open innovation model. Open innovation is a global approach to innovation management analysed from different angles, such as the strategic, technological, human, and market aspects. Although various research trends have contributed to understanding open innovation, a key element is missing from the debate: the role-played by organizational arrangements and skills in implementing open innovation. The purpose of this paper is therefore to fill this blank area in research on open innovation by addressing the following research question: What organizational framework should be put in place to develop organizational skills for open innovation? Our approach is based on a case of inbound open innovation concerning the improvement of an urban transport system, led by a French high-tech group with an active open innovation policy