Corporate Identity & Format Validators

Validate entity-identifier format, structure, and check digits offline. For LEI codes, also look up live registration details in the official GLEIF registry.

Legal Entity Identifier (LEI) Validator

A 20-character identifier standardized under ISO 17442. This validator runs the official ISO 7064 mod-97-10 check digit algorithm and queries live registration status in the official GLEIF registry.

Enter 20-character LEI code:

Unique Entity ID (UEI) Format Validator

Checks format & structure only (Crockford's Base32 character set, 12-char length, no leading zero, excluding 'I' and 'O'). This tool does not check active registration; to look up active federal contractor registration status, search the official SAM.gov Registry.

Enter 12-character SAM.gov UEI:

CAGE / NCAGE Code Format Validator

Checks format & structure only (5-character alphanumeric format). This tool does not check active facility status; to verify active DLA CAGE facility records, search the official DLA CAGE Center.

Enter 5-character CAGE/NCAGE code:

D-U-N-S Number Format Validator

Checks format & structure only (9 numeric digits). This tool does not check active credit records; to search Dun & Bradstreet corporate records, visit Dun & Bradstreet (D&B).

Enter 9-digit DUNS number: