LEI Lookup

Look up a company's Legal Entity Identifier — the financial-system standard for "this counterparty is who it says it is." Issuer, status, parent-LEI, all sourced directly from GLEIF.

Examples: Microsoft Corporation · INR2EJN1ERAN0W5ZP974 · Booz Allen Hamilton

Why this exists

The Legal Entity Identifier is the only globally-standardized "company ID" — a 20-character code issued by GLEIF and required for any party to financial transactions in the major regulated markets. Banks check it. OFAC checks it. PE counterparty diligence starts with it.

GLEIF publishes the entire registry as open data — name, jurisdiction, registration status, and the parent-LEI graph (so you can see the ownership chain). This page surfaces that with one query.

Frequently asked questions

What is an LEI and what does this tool look up?

A Legal Entity Identifier (LEI) is the global ISO 17442 standard ID for any entity engaged in financial transactions. This tool queries GLEIF, the official LEI issuer-of-record, returning issuer, status, registration date, parent-LEI relationships, and the full corporate-hierarchy graph. LEIs are required for derivatives reporting in most jurisdictions and increasingly for KYC.

How current is the LEI data?

Direct from the GLEIF API — the canonical source. Status changes (lapsed, retired, merged) propagate from issuing Local Operating Units within 24 hours. The free GLEIF API has no rate limit for basic lookups.

When would I use LEI Lookup?

Pre-derivatives onboarding, counterparty verification before wire authorization, parent-entity discovery for KYC, and confirming a counterparty's regulatory status before signing a swap or repo agreement.