The LEI as the entity layer under your KYB checks
The Legal Entity Identifier is a 20-character code defined by ISO 17442 and endorsed by the G20 and the Financial Stability Board. It identifies one legal entity, globally, and it is not self-asserted. Before an LEI is issued, the entity is validated against an authoritative national business registry, and the record is revalidated every year.
That gives a KYB process two things it normally has to assemble by hand:
Level 1 data, “who is who” Legal name, registered and headquarters address, jurisdiction of incorporation, local registry and registration number, entity legal form, entity status, and the current status of the LEI itself.
Level 2 data, “who owns whom” Direct parent, ultimate parent, and child entities, reported against a defined accounting consolidation standard rather than a customer’s own description of its structure.
Because the identifier is public and persistent, both sides of a relationship can resolve to the same entity without exchanging documents. That is what makes it useful in onboarding, in payments, and in trade.