How to Query and Verify Entities via the GLEIF Golden Copy

How to Query and Verify Entities via the GLEIF Golden Copy Database

Compiled & reviewed by the EntityCodes Editorial Team (Tech Labs FZ LLC) · Data verified: 2026-06-28

The Global Legal Entity Identifier Foundation (GLEIF) maintains the public Golden Copy database containing active LEI reference records.

Querying Level 1 and Level 2 Reference Data

The GLEIF Golden Copy database provides public access to verified registration data ^[1]. The data structure is split into two primary layers:

Level 1 Data ('Who is Who'): Includes the entity's official legal name, registered physical address, country of incorporation, and active or inactive status.
Level 2 Data ('Who Owns Whom'): Maps corporate relationships, identifying the direct parent and ultimate parent companies of the entity to trace systemic exposures.

Users can access this data by downloading XML-based Common Data Format (CDF) files or querying the GLEIF public JSON API directly ^[1].

Global Financial Standards & LEI Mandates

To support the core compliance tasks detailed in this guide on How to Query and Verify Entities via the GLEIF Golden Copy Database, compliance officers and corporate attorneys must consult several international financial standards. Reference data for all active identifiers is published in the Global Legal Entity Identifier Foundation (GLEIF) GLEIF Golden Copy and Reference Data Registry. The code's alphanumeric structure is specified by the International Organization for Standardization (ISO) ISO 17442:2020 Financial services — Legal Entity Identifier (LEI), and its mathematical integrity is checked using the check digits standard International Organization for Standardization (ISO) ISO 7064:2003 Check character systems. The systemic oversight of these codes was established following the recommendation of the Financial Stability Board (FSB) LEI Governance and Implementation Progress Reports. Swap trade reporting regulations require active codes under the Commodity Futures Trading Commission (CFTC) Swap Data Recordkeeping and Reporting Requirements (LEI Mandate). Investment company registration forms are regulated by the U.S. Securities and Exchange Commission (SEC) Form N-PORT and Investment Company LEI requirements. European trading rules enforce a strict 'no-LEI, no-trade' policy under European Securities and Markets Authority (ESMA) MiFID II/MiFIR LEI requirements and 'No LEI, No Trade' policy. Regulatory committees monitor standard implementations following the Regulatory Oversight Committee (ROC) ROC Committee Guidelines for Global LEI System. The Federal Reserve details U.S. banking expectations in the Federal Reserve Board (FRB) Supervision and Regulation Letter SR 14-7 on LEI Expectations, and LOU accreditation standards are managed via the Global Legal Entity Identifier Foundation (GLEIF) GLEIF Accreditation Requirements for Local Operating Units (LOUs).

💡 Expert Guidance: Delta File Synchronization Mismatch

Financial institutions downloading GLEIF Golden Copy files often fail to synchronize their databases using both the full files and daily delta files. Relying solely on the monthly full file runs the risk of transacting with entities whose LEI statuses have transitioned to 'Lapsed' or 'Merged' in the interim.

Frequently Asked Questions

What is Level 2 LEI data? ▾

Level 2 data describes corporate ownership relationships, showing who owns the legal entity and identifying parent entities.

How often is the GLEIF database updated? ▾

The GLEIF Golden Copy database is updated daily to incorporate new registrations, renewals, and corporate structure changes.

What is the GLEIF Golden Copy database? ▾

The GLEIF Golden Copy database is a consolidated repository published daily by the Global LEI Foundation that aggregates verified entity profiles and relationship files from all accredited LOUs.

What are GLEIF Golden Copy delta files? ▾

Delta files are registry updates published by GLEIF that list only the changes, newly issued codes, and updates compared to the previous day's Golden Copy release.

How can I search for corporate relationships in the GLEIF index? ▾

You can use the GLEIF search portal to search an entity's profile. Under the Level 2 relationship data section, the portal lists direct parents, ultimate parents, and subsidiaries linked by their LEIs.

What is the difference between an 'Active' and a 'Lapsed' LEI status? ▾

An 'ISSUED' (Active) status indicates the entity has verified its details within the last 12 months. A 'LAPSED' status indicates the annual renewal deadline has passed, meaning the data has not been audited recently.

Does GLEIF provide a public API for real-time LEI validation? ▾

Yes, GLEIF provides a free, public Web API that allows developers to query entity details, verify check digits, and retrieve parent-subsidiary relationships in JSON format.

How does GLEIF verify the accuracy of LOU registry uploads? ▾

GLEIF runs automated data quality checks daily against files submitted by LOUs, auditing format rules, duplicate entries, and concordance relationships to maintain data integrity.

What format is the raw GLEIF database file published in? ▾

The raw GLEIF database is published in XML format (specifically CDF - Common Data File format) to support structured data exchange and bulk loading into database servers.

Can I download the entire global LEI registry dataset for free? ▾

Yes, GLEIF provides free, unrestricted access to download the complete Golden Copy zip archives containing millions of active entity records directly from its download page.