A Legal Entity Identifier (LEI) is a unique 20-character alphanumeric code that identifies a legal entity — a company, fund, or other organisation — unambiguously across financial systems and jurisdictions.
LEIs were introduced after the 2008 financial crisis to solve a specific problem: regulators and financial institutions had no reliable way to identify who was party to a financial transaction across borders.
An LEI gives every participating legal entity a single, globally recognised identifier that works the same way regardless of country, language, or naming convention.
Who issues and manages LEIs?
LEIs are issued by accredited Local Operating Units (LOUs) authorised by the Global Legal Entity Identifier Foundation (GLEIF), which oversees the LEI system globally. GLEIF maintains the central registry, which is publicly accessible. Any legal entity that participates in financial markets can apply for an LEI through an accredited issuer.
LEI data is structured around two components: Level 1 data, which identifies the entity (legal name, registered address, jurisdiction), and Level 2 data, which identifies ownership relationships; who owns whom. This makes the LEI system useful not just for transaction reporting but for understanding corporate structure and beneficial ownership.
Why do LEIs matter for compliance and financial data?
Regulators in a growing number of jurisdictions require LEIs for transaction reporting, derivatives trading, and securities identification. Under EMIR in Europe and similar frameworks elsewhere, financial counterparties must report their LEI when executing certain trades. Without one, entities may be blocked from transacting.
Beyond regulatory compliance, LEIs solve a practical data problem: the same company may appear under different names, abbreviations, or transliterations across different data sources. An LEI resolves all of those variants to a single canonical identifier, making it possible to match records across systems without manual disambiguation.
This is particularly relevant for compliance teams running adverse media screening or due diligence workflows. A company name search returns results; an LEI-matched search returns results about the right entity, including subsidiaries and related parties captured through Level 2 ownership data.
How does an LEI appear in news data?
When news data is enriched with LEI tags, every article mentioning a legal entity carries that entity’s LEI alongside the name as it appears in the text. This means downstream systems — compliance platforms, risk tools, portfolio management systems — can match news coverage directly to the entities in their own databases without a separate entity resolution step.
The practical effect is that a compliance analyst monitoring a counterparty does not need to manage a list of name variants, ticker symbols, and jurisdictional aliases. The LEI in the news feed connects directly to the LEI in their screening system.
Opoint pre-attaches LEI identifiers to every article at the point of indexing, across all 135 languages and 250,000+ sources in the feed.
What is the difference between an LEI and other entity identifiers?
LEI identifies legal entities — companies, funds, and organisations. Other identifiers in the financial data ecosystem serve related but distinct purposes:
- FIGI (Financial Instrument Global Identifier) identifies financial instruments; a specific share class, bond, or derivative — rather than the issuing entity itself.
- PermID is a Reuters/Refinitiv identifier that covers entities, instruments, quotes, and organisations, used primarily within Refinitiv-connected systems.
- Wikidata IDs are open identifiers that link entities to the broader Wikidata knowledge graph, useful for general entity disambiguation across languages.
In a structured news feed, all four may be attached to the same article: the LEI identifying the company, the FIGI identifying the instrument being reported on, the PermID connecting to Refinitiv data, and the Wikidata ID enabling cross-language entity matching.
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FAQ
Is an LEI the same as a company registration number?
Who needs an LEI?
Any legal entity that participates in regulated financial markets where LEI reporting is required. This includes banks, investment firms, funds, corporates executing derivatives, and other counterparties under EMIR, MiFID II, and equivalent frameworks in other jurisdictions. Requirements vary by regulation and transaction type.
How is an LEI used in news data?
When a news data provider pre-attaches LEIs to entity mentions in articles, downstream systems can match news coverage to known entities directly, without name-matching logic or manual disambiguation. This is particularly valuable for compliance and risk platforms that need to monitor counterparties, suppliers, or portfolio companies across multiple languages and sources.
Where can I look up an LEI?
The GLEIF Global LEI Index at gleif.org is the authoritative public registry. You can search it by company name, LEI code, or jurisdiction, and it returns current registration status, Level 1 entity data, and Level 2 ownership relationships where available.
