Introduction: Network platforms are interesting for integrated care governance as they seek solutions for the problem of competition and tensions between networks. In this paper, we analyse how a network platform functions for the actors involved, and how it is used in their work. Methods: We employed a case study in a Dutch urbanised hospital region, and conducted 17 interviews with hospital physicians, directors, and supporting staff who are involved in a network platform called “BeterKeten” (BK). Results: Actors assign different functions and purposes to BK: facilitating and legitimising professional (learning) communities; adapting to a changing policy context; enlarging professionals’ and the networks’ circle of influence; and extending governing possibilities. Network platform’ dynamics and frictions entail changing professional and managerial practices; embedding a BK network in a partner network; and alignment of (conflicting) network platforms. Discussion: Network platforms are a promising strategy to govern, facilitate, and nurture network-building actions to enhance integrated care, offering new ways of working to cope with its multi-level nature. Conclusion: BK is a dynamic actor with steering capacities that enables the co-existence of multiple purposes. Further research could pay attention to how network platforms are able to develop modalities of integrated care governance that suit healthcare system’s networked character.