About a-team Marketing Services
The knowledge platform for the financial technology industry
The knowledge platform for the financial technology industry

A-Team Insight Blogs

Swift and GLEIF Fulfil Plans to Deliver BIC-to-LEI Relationship File

Subscribe to our newsletter

The Global Legal Entity Identifier Foundation (GLEIF) has published the first monthly relationship file that matches a Business Identifier Code (BIC) assigned to an organisation against its Legal Entity Identifier (LEI). The file allows market participants to link and cross-reference these key entity identifiers free of charge, streamlining entity verification processes and reducing data management costs.

The open source BIC-to-LEI relationship file is built on a mapping process established by Swift and certified by GLEIF. It is published on the GLEIF website in CSV format and will be updated on a monthly basis. As of February 2018, more than one million LEIs have been issued to legal entities globally. Of the 130,000 BICs assigned to date, 45,000 pertain to organisations that are legal entities or foreign branches and qualify for mapping against LEIs.

Availability of the open source BIC-to-LEI relationship file will ease the process of gathering, aggregating and reconciling counterparty information based on interoperability across parallel identification platforms.

Stephan Wolf, CEO at GLEIF, says: “Entity identification can be a time-consuming, costly and complex task. Relevant information is often stored in disparate internal and external systems and tagged under different client ID numbers. The open source BIC-to-LEI relationship file is a step towards consolidating information. This will reduce the cost associated with entity verification.”

Harry Newman, global head of payments at Swift, adds: “The BIC-to-LEI relationships and related regulatory reporting data are in high demand among market participants. Mapping LEIs can be resource intensive, but at Swift we have a dedicated team focused on establishing the relationships to the highest quality.”

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: GenAI and LLM case studies for Surveillance, Screening and Scanning

As Generative AI (GenAI) and Large Language Models (LLMs) move from pilot to production, compliance, surveillance, and screening functions are seeing tangible results – and new risks. From trade surveillance to adverse media screening to policy and regulatory scanning, GenAI and LLMs promise to tackle complexity and volume at a scale never seen before. But...

BLOG

Regulatory Developments 2026, a Cross-Jurisdictional Outlook

2026 regulatory themes are converging around the theme of continuous evidence – data quality, control effectiveness, and operational resilience demonstrated through repeatable artefacts rather than narrative attestations. In Europe, that direction is most explicit in ESMA’s data platform and supervisory tooling agenda, alongside the ESAs’ DORA-related coordination and oversight planning – see ESMA 2026 Annual...

EVENT

Data Management Summit London

Now in its 16th year, the Data Management Summit (DMS) in London brings together the European capital markets enterprise data management community, to explore how data strategy is evolving to drive business outcomes and speed to market in changing times.

GUIDE

Connecting to Today’s Fast Markets

At the same time, the growth of high frequency and event-driven trading techniques is spurring demand for direct feed services sourced from exchanges and other trading venues, including alternative trading systems and multilateral trading facilities. Handling these high-speed data feeds its presenting market data managers and their infrastructure teams with a challenge: how to manage...