Corporate Identity & Format Validators

Verify entity identifier formats, structure, and check digits. Run offline checksum algorithms and query active registration details.

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 verification algorithm.

Enter 20-character LEI code:

Unique Entity ID (UEI) Validator

A 12-character alphanumeric identifier generated by SAM.gov for federal contractors. It uses Crockford's Base32 character set, excluding the letters 'I' and 'O'.

Enter 12-character SAM.gov UEI:

CAGE / NCAGE Code Validator

Commercial and Government Entity (CAGE) and NATO CAGE (NCAGE) codes are 5-character identifiers used for physical facility tracking in federal procurement.

Enter 5-character CAGE/NCAGE code:

D-U-N-S Number Validator

Data Universal Numbering System (D-U-N-S) is a proprietary 9-digit corporate identification format created by Dun & Bradstreet.

Enter 9-digit DUNS number: