# SIREN and SIRET numbers

Système d'identification du répertoire des entreprises (SIREN) is a unique nine-digit number that identifies an entire company and acts as its legal identifier on French territory. Each legal entity, regardless of its status, receives its own SIREN number from the [National Institute of Statistics and Economic Studies](https://www.insee.fr/) (Insee) upon registration. The SIREN number must be indicated on all company documents, administrative and tax forms, invoices, and offers.
Système d’identification du répertoire des établissements (SIRET) is a unique 14-digit identifier that the Insee assigns to each establishment a company owns in France. Every French company or association is given at least one SIRET number.
Typically, a company has a main SIRET number for its head office and additional SIRET numbers for its other locations. The SIRET number shows the exact location of the business activity and distinguishes between different establishments of the same company. It proves to suppliers and customers that the establishment exists legally.
The SIRET number consists of the company’s SIREN number followed by the Numéro Interne de Classement (NIC):
_SIREN Number + NIC = SIRET Number_
For example, [UNICEF](https://annuaire-entreprises.data.gouv.fr/entreprise/comite-francais-pour-l-unicef-unicef-784671695)'s SIREN number is 784 671 695. The SIRET number of UNICEF’s head office in Paris is 784 671 695 00087 and the SIRET number for their office in Verdun is 784 671 695 00095.
## Where can I find my SIREN and SIRET number?
You can find your SIREN number in your dashboard in the [business tax details](https://dashboard.stripe.com/settings/taxation) portal. SIREN and SIRET numbers are public data, accessible through the [SIRENE directory](https://avis-situation-sirene.insee.fr/) or the [national business directory](https://annuaire-entreprises.data.gouv.fr/).
See [France’s official government website](https://entreprendre.service-public.fr/vosdroits/F32135) for more information.