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ISIN2LEI Links Open Data Sources is based in the Netherlands, has over 10 years of experience in the financial sector and specializes in RegTech. We provide linked open data on legal Entity identifiers (LEIs) and international Securities Identification Numbers (ISINs). Both Level 1 (Who is Who) and Level 2 (Who owns whom) data on LEIs is made available. ISIN to LEI links are added from a Mifid II perspective.

We make data available in a user-friendly web portal, where you can easily search and drill down to the details. Data can be exported to CSV and PDF and you can create your own list or favorite LEIs and ISINs. The LEI data will be updated daily: ISIN to LEI mappings are at least updated on a weekly basis.

132,282 UPDATES
1,480,164 LEI CODES
2,827,859 PARENTS
25,161,314 ISINS

Updates and new codes in last month.

2019-09-18 13:25:28

Who is who?

Relevant data for:

  • Client onboarding
  • Know Your Customer (KYC)
  • Anti Money Laundering (AML)

Who owns whom?

Relevant data for:

  • Concentration Risk
  • Company Ownership
  • Regulatory Filings

Who issued what?

Relevant data for:

  • Financial Risk
  • Market Availability
  • Regulatory Filings

Who can benefit?

Relevant data for:

  • Pension funds
  • Insurance companies
  • Banks
  • etc.

Regulatory Use?

Relevant data for:

  • Solvency II
  • EMIR
  • Data Quality

What do we do?

Relevant data for:

  • Data Analysis
  • LEI coverage improvement
  • Additional ISIN to LEI mappings
  • Product improvement and...

Our latest blog

ISIN-to-LEI Relationship Files

9th April 2019 by Johan Hol

Last week the first ISIN-to-LEI Relationship File was published by GLEIF.
The file contains mappings of 11 national numbering agencies (NNA), which is only 10% of the NNA (116) population. 
However, with over 3 millions ISINs the volume is big enough to perform an indepth analysis between this file and the ISIN-LEI information within FIRDS.

This are the first results:
- 80,5% of the Relationship File is also covered in FIRDS
- 99,4% match of mappings covered in...