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

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

Recorded Webinar: Navigating a Complex World: Best Data Practices in Sanctions Screening

As rising geopolitical uncertainty prompts an intensification in the complexity and volume of global economic and financial sanctions, banks and financial institutions are faced with a daunting set of new compliance challenges. The risk of inadvertently engaging with sanctioned securities has never been higher and the penalties for doing so are harsh. Traditional sanctions screening...

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 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,...