LEI Lookup

Total LEI Team
Total LEI Team
Created: Dec 18, 2025Updated: Dec 18, 2025Est. reading time: 7 min

What an LEI lookup gives you: a public, standardized record for a legal entity — including identity details (Level 1 “who is who”), relationship data where available (Level 2 “who owns whom”), and key fields like issuer (LOU: LOU (Local Operating Unit) — an accredited organization that issues/renews LEIs and validates entity data.) and current status.

What you can look up

An LEI lookup is most useful when you need to uniquely identify an entity across countries and naming conventions — especially when the entity is a counterparty: The other party to a transaction (e.g., a bank, fund, or company) that enters into the financial agreement with you. in regulated financial activity.

  • LEI code: the 20-character identifier (ISO 17442).
  • Entity identity (Level 1): legal name, addresses, legal form, and registration details.
  • Relationships (Level 2): direct and ultimate parent information where reported.
  • Issuer details: the issuing LOU: LOU (Local Operating Unit) — an accredited organization that issues/renews LEIs and validates entity data..
  • Status indicators: whether the record is current/validated or not.

The most authoritative public source is the Global LEI Index coordinated by GLEIF: GLEIF — the organization that coordinates the global LEI system and maintains data quality in the Global LEI Index. as part of the GLEIS: GLEIS (Global LEI System) — the global framework of rules and institutions that supports issuing and publishing LEIs..

You can typically search using:

  • Exact LEI: best option when you already have the code.
  • Legal name: useful, but may return multiple similar entities across jurisdictions.
  • Business registry / registration number: helpful for disambiguation in a given jurisdiction: The country or legal area whose laws and regulations apply to an entity or activity..

Interpreting status and key dates

When you open an LEI record, focus on the entity status and the validation/renewal dates. For many practical workflows, “active/validated” vs “lapsed” is the difference between smooth processing and a manual review.

What to check first

  • Registration/issuance date: when the LEI was first issued.
  • Last update / last validation: indicates recency of verification.
  • Next renewal / expiry indicator: helps you plan renewal before the record becomes stale.
  • Managing LOU: who controls renewal and updates for the record.

If your record shows it is no longer current, go to Renewing an LEI to understand how to revalidate and restore usability.

Understanding Level 1 vs Level 2 data

The LEI system publishes two main layers of reference data:

  • Level 1 (Who is Who): core identity fields (name, addresses, registration info).
  • Level 2 (Who owns Whom): relationship data for direct/ultimate parents where applicable and reportable.

Not every entity will show Level 2 relationships. Some legal structures (or local reporting conditions) can limit relationship disclosure, and in some cases the “no relationship reported” outcome is expected.

Common lookup mistakes

  • Searching trade names instead of legal names: LEI records use legal entity names.
  • Assuming similar names mean the same entity: subsidiaries and affiliates often look alike; use jurisdiction + registration details to confirm.
  • Ignoring status: a lapsed record can still appear in search results.
  • Using a stale PDF or internal list: always cross-check against the public index when the decision is operational or regulatory.
Glossary (5)
counterparty
The other party to a transaction (e.g., a bank, fund, or company) that enters into the financial agreement with you.
jurisdiction
The country or legal area whose laws and regulations apply to an entity or activity.
GLEIS
GLEIS (Global LEI System) — the global framework of rules and institutions that supports issuing and publishing LEIs.
GLEIF
GLEIF — the organization that coordinates the global LEI system and maintains data quality in the Global LEI Index.
LOU
LOU (Local Operating Unit) — an accredited organization that issues/renews LEIs and validates entity data.

Related: keep your LEI usable

If your lookup shows the record is out of date (or you’re approaching renewal), renew proactively to avoid trade/reporting disruption.