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

A-Team Insight Blogs

CUSIP Global Services Adds ISIN to LEI Mapping for US and Canadian Securities

Subscribe to our newsletter

CUSIP Global Services (CGS) has joined the initiative led by the Association of National Numbering Agencies (ANNA) and Global Legal Entity Identifier Foundation (GLEIF) to map ISINs to LEIs. ANNA and GLEIF set up the mapping initiative back in April 2019 with a limited number of National Numbering Agencies within ANNA joining the project, which is designed to improve transparency and counterparty risk exposure in global financial markets.

CGS, a National Numbering Agency and co-operator of the ANNA Service Bureau, is providing ISIN to LEI mapping for newly issued US and Canadian securities, and legacy securities in its ISIN database for which there is an accompanying LEI. As the largest National Numbering Agency based on size of markets served, CGS is responsible for issuing and maintaining ISINs for over 35 markets in North, South, Central America and the Caribbean. Its ISIN to LEI mapping capability is available immediately, at no cost, and can be accessed on the GLEIF website.

Scott Preiss, managing director, global head, CUSIP Global Services, part of S&P Global Market Intelligence, explains: “The underlying mission of the LEI, from its conception in the wake of the financial crisis, was to create an easy-to-use and widely accessible standard for identifying underlying entity exposures. By linking the ISIN directly to the entity-level data in the LEI, we are taking an important step towards enabling risk management systems to more accurately capture entity exposures within a securities portfolio.”

From a user perspective, GLEIF board member Robin Doyle says: “Having a GLEIF certified connection between identification standards that enables firms to aggregate data about securities exposure in relation to individual issuers and related entities delivers a peace of mind that was simply not available a decade ago.”

Subscribe to our newsletter

Related content

WEBINAR

Upcoming Webinar: Building a Semantic Layer for Your Enterprise Data Estate

Date: 8 September 2026 Time: 10:00am ET / 3:00pm London / 4:00pm CET Duration: 50 minutes The democratisation of data has encouraged engineers to think about how to make their data estates more accessible and useable for non-technical business end-users. Translating intention into data action requires careful configuration that enables consumers to mine insight, analytics...

BLOG

ESMA’s Data Quality Report Signals a Higher Bar for Regulatory Reporting Data

By Michele Hillery, Managing Director, Head of Repository & Derivatives Services at The Depository Trust and Clearing Corporation (DTCC). Regulators across jurisdictions are leveraging trade reporting data as a supervisory resource, using it to monitor risk, assess market activity and inform policy and oversight decisions. As this use becomes more sophisticated, firms face an even...

EVENT

Digital Assets & Tokenisation Briefing, New York

A-Team Group’s Digital Assets & Tokenisation Briefing assembles an exclusive group of CxOs and senior technology innovators. These leading market practitioners and infrastructure providers are collectively building the digital rails and decentralised networks that will power Wall Street 2.0.

GUIDE

AI in Capital Markets Handbook 2026

AI adoption in capital markets has moved into a more disciplined phase. The priority is now controlled deployment: where AI can be used safely, where it can deliver measurable value, and how outputs can be governed, monitored and evidenced. The 2026 edition of the AI in Capital Markets Handbook examines how AI is being applied...