Definitions
- SIREN: 9-digit identifier for a legal entity in France.
- SIRET: 14-digit identifier for an establishment (SIREN + 5-digit NIC).
Where they appear
- Invoices, quotes, and commercial documents (often SIRET).
- Company registry extracts and administrative documents (SIREN/SIRET).
- Employer and establishment-related filings.
How to interpret
- Multiple SIRETs can exist under one SIREN (multiple establishments).
- SIREN identifies the legal entity; SIRET identifies a specific operating location.
Verification approach
For strong evidence, use an official extract or an authoritative registry source showing the entity name, address, and status linked to the SIREN/SIRET.
Related pages
Country formats overview | FAQ
