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

ANNA and GLEIF Expand ISIN-to-LEI Mapping Service

Subscribe to our newsletter

The Association of National Numbering Agencies (ANNA) has further expanded the ISIN-to-LEI mapping service it provides in conjunction with the Global Legal Entity Identifier Foundation (GLEIF) to cover ISINs in an additional group of jurisdictions.

The mapping service developed collectively by the GLEIF, ANNA and its National Numbering Agencies (NNAs) was launched as a pilot project in April 2019 with the aim of bringing together the ISIN and LEI ISO standards – ISIN ISO 6166 and LEI ISO 17442 – to improve transparency and risk and exposure management.

The initiative was expanded with the addition of more NNAs in December 2019 and now includes 22 NNAs with ISIN coverage across 41 jurisdictions. Recent jurisdiction additions include the European Union, Antigua and Barbuda, Bermuda, Bahamas, Belize, Cayman Islands, Curacao, Grenada, Marshall Islands, Philippines, Puerto Rico, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, and the British Virgin Islands. More NNAs are in the pipeline and should bolster ISIN-to-LEI coverage that currently stands at about 5.2 million active ISINs linked to almost 72,000 LEIs.

Dan Kuhnel, chairman at ANNA, says: “The partnership has exceeded initial expectations of purely mapping to incorporate new issues as it has also included mappings for existing active ISINs.” Stephan Wolf, CEO at the GLEIF marks the success of the initiative, saying: “Data quality has remained high with the number of third-party challenges very low.”

The ISIN-to-LEI mapping table is freely available and links to the data can be found on both the GLEIF and ANNA websites. The linking of ISINs and LEIs has been endorsed by regulators including the Financial Stability Board (FSB) and European Securities and Markets Authority (ESMA).

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: Unpacking Stablecoin Challenges for Financial Institutions

The stablecoin market is experiencing unprecedented growth, driven by emerging regulatory clarity, technological maturity, and rising global demand for a faster, more secure financial infrastructure. But with opportunity comes complexity, and a host of challenges that financial institutions need to address before they can unlock the promise of a more streamlined financial transaction ecosystem. These...

BLOG

From Batch to Real-Time: LSEG Reinvents AML Screening with World-Check On Demand

As financial institutions accelerate toward real-time payments and digital onboarding, compliance teams face mounting pressure to keep customer screening instant, accurate and demonstrable. In response, the London Stock Exchange Group (LSEG) has introduced World-Check On Demand – a new cloud-based service designed to deliver “real-time risk intelligence” through API integration, allowing institutions to embed sanctions...

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 2022/2023 – Tenth Edition

Welcome to the tenth edition of A-Team Group’s Regulatory Data Handbook, a publication that has tracked new regulations, amendments, implementation and data management requirements as regulatory change has impacted global capital markets participants over the past 10 years. This edition of the handbook includes new regulations and highlights some of the major regulatory interventions challenging...