LEI Data

LEI Mapping



From February 2018, the Global Legal Entity Identifier Foundation (GLEIF) will publish monthly relationship files that match Business Identifier Codes (BICs) assigned to an organization against its Legal Entity Identifier (LEI). With the launch of the open source BIC-to-LEI Relationship Files, GLEIF and SWIFT have pioneered a cooperation model that, for the first time, enables market participants to link and cross-reference these key entity identifiers free of charge. This will significantly streamline entity verification processes and reduce data management costs.

The BIC-to-LEI relationship file is built upon a mapping process established by SWIFT and certified by GLEIF. This cooperation pilots the certification of LEI mapping service offered by GLEIF to interested data vendors and other organizations. The service is designed to ensure that the LEI is appropriately matched to the applicable identifier. For more information about the certification of LEI mapping service, contact LEImapping@gleif.org.