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: Managing Non-Financial Misconduct Under SMCR

Non-financial misconduct – encompassing behaviours such as bullying, sexual harassment, and discrimination is a key focus of the Senior Managers and Certification Regime (SMCR). The Financial Conduct Authority (FCA) has underscored that such misconduct is not only unethical but also poses significant risks to a firm’s culture and operational integrity. Recognizing the profound impact on...

BLOG

A-Team Launches Inaugural AI in Data Management Summit New York City

Artificial intelligence-led applications offer financial institutions the potential to do more with their data at a time when increasingly complex economic and geopolitical influences place extraordinary operational pressures on them. The technology is now being applied to all parts of an organisation, from asset and risk management to customer relationship management and regulatory compliance. A...

EVENT

ExchangeTech Summit London

A-Team Group, organisers of the TradingTech Summits, are pleased to announce the inaugural ExchangeTech Summit London on May 14th 2026. This dedicated forum brings together operators of exchanges, alternative execution venues and digital asset platforms with the ecosystem of vendors driving the future of matching engines, surveillance and market access.

GUIDE

Regulatory Data Handbook 2025 – Thirteenth Edition

Welcome to the thirteenth edition of A-Team Group’s Regulatory Data Handbook, a unique and practical guide to capital markets regulation, regulatory change, and the data and data management requirements of compliance across Europe, the UK, US and Asia-Pacific. This year’s edition lands at a moment of accelerating regulatory divergence and intensifying data focused supervision. Inside,...