The OpenNeuro project (formerly known as the OpenfMRI project) was established in 2010 to provide a resource for researchers interested in making their neuroimaging data openly available to the research community. It is managed by Russ Poldrack and Chris Gorgolewski of the Center for Reproducible Neuroscience at Stanford University. The project has been developed with funding from the National Science Foundation, National Institute of Drug Abuse, and the Laura and John Arnold Foundation.
OpenNeuro represents the next step beyond the OpenfMRI data sharing platform. The name change is meant to reflect the fact that they are no longer focused exclusively on fMRI — the new platform will accept any imaging dataset that follows the BIDS standard. http://reproducibility.stanford.edu/announcing-the-openneuro-platform-open-and-reproducible-science-as-a-service/