The Research Organization Registry (ROR) launched in 2019 and now contains open persistent identifiers (ROR IDs) and associated metadata for more than 97,000 organizations. As a new arrival in the persistent identifier ecosystem, ROR is uniquely focused on solving the specific problem of how to identify the research organization associated with published research outputs, and on solving this problem with open infrastructure and with extensive community input. Wide adoption of ROR across the research landscape is key to enabling clean, consistent, and open metadata for tracking research outputs by institutions. ROR IDs are already supported in the DataCite metadata schema and will soon be supported in Crossref. A number of repositories and platforms have implemented ROR in their systems, taking advantage of ROR’s open API and public data dumps. Additional integrations are forthcoming as the project matures. In this session, we will provide an overview of the ROR registry, demonstrate how ROR IDs are being used, share upcoming milestones for the project, and solicit audience questions and feedback.