This dataset provides a correspondence between ISNI and Ringgold identifiers, by combining two datasets: Open ISNI for Institutions, available at http://isni.ringgold.com/ , which provides metadata for institutions identified by ISNI. The dataset of institutions used by ORCID for disambiguation, which also comes from Ringgold, but exposes Ringgold ids. The alignment between the two datasets was performed by exact matching on tuples of (name,city,region,country). This very conservative matching succeeds for about 75% of the 400 000 institutions covered: this high matching rate can be explained by the fact that both datasets come from the same database. The matching does not always succeed, probably because version differences between the two datasets. Structure of the dataset ringgold_metadata_from_orcid.json provides one JSON payload per line, each representing a disambiguated institutition from ORCID, with its Ringgold identifier aligned_ringgold_and_isni.tsv provides the aligned dataset, containing all ISNI records and all matching Ringgold records. The Ringgold records that were not matched are not included in this file. License Quoting Ringgold: "The use of the ISNI data contained herein is completely open and you may utilise and share the ISNI identifiers as you see fit." Quoting ORCID: "Per our agreement with Ringgold, we are allowed to share the Ringgold identifiers and limited metadata (organization name, location) under CC0 license, just as the rest of ORCID data are available. We would not be using Ringgold otherwise. If someone gets a Ringgold ID out of ORCID, they are free to use it."