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: Best practice approaches to data management for regulatory reporting

Effective regulatory reporting requires firms to manage vast amounts of data across multiple systems, regions, and regulatory jurisdictions. With increasing scrutiny from regulators and the rising complexity of financial instruments, the need for a streamlined and strategic approach to data management has never been greater. Financial institutions must ensure accuracy, consistency, and timeliness in their...

BLOG

Implementing and Understanding Modern Data Architectures: Webinar Preview

The evolution of data use by financial institutions has been accompanied by ever-changing challenges to its management. With technologies such as artificial intelligence enabling firms to prise greater value from their data and to subject it to greater utilisation, a new set of data management practices have emerged. These modern data architectures regard data as...

EVENT

AI in Capital Markets Summit New York

The AI in Capital Markets Summit will explore current and emerging trends in AI, the potential of Generative AI and LLMs and how AI can be applied for efficiencies and business value across a number of use cases, in the front and back office of financial institutions. The agenda will explore the risks and challenges of adopting AI and the foundational technologies and data management capabilities that underpin successful deployment.

GUIDE

AI in Capital Markets: Practical Insight for a Transforming Industry – Free Handbook

AI is no longer on the horizon – it’s embedded in the infrastructure of modern capital markets. But separating real impact from inflated promises requires a grounded, practical understanding. The AI in Capital Markets Handbook 2025 provides exactly that. Designed for data-driven professionals across the trade life-cycle, compliance, infrastructure, and strategy, this handbook goes beyond...