French SIRET Number Validator
Validate the authenticity, format, and checksum of French SIRET Number.
About French SIRET Number Validation
The SIRET number (Système d'Identification du Répertoire des Établissements) is the 14-digit identifier for each physical branch or establishment of a French company.
Composed of the 9-digit SIREN followed by the 5-digit NIC (Numéro Interne de Classement). All 14 digits must satisfy the Luhn algorithm (Modulo 10).