Open research infrastructures are playing an increasingly critical role at all stages of the research life cycle, from grant application through dissemination and evaluation. However, funding for these infrastructures is, at best, patchy. Most infrastructure organizations rely on community support, such as membership, and/or, in some cases, grants. Ensuring that these organizations are fully sustainable will take long-term, reliable investment. In this session we'll look at some of the ways this sort of investment is - or could be - happening, and who is - or should be - involved.