91 Île-de-France

SIRET Generator Essonne

4 fake SIRET numbers generated with real addresses from the Essonne department (91), Île-de-France region. Algorithmically validated, ready for your tests.

Generated Data — Essonne

Advanced generator
SIRET SIREN Company Address
882 695 091 08839 882 695 091 Morel 911, rue Sébastien Pasquier,
91120 Palaiseau
577 754 831 00268 577 754 831 Perez Blondel et Fils 26, chemin Émilie Lemaire,
91300 Massy
939 572 129 00293 939 572 129 Dumas Lesage SAS 217, impasse Traore,
91120 Palaiseau
376 559 951 04567 376 559 951 Pichon 83, place Marine Barthelemy,
91600 Savigny-sur-Orge

This data is entirely fictional. Companies and addresses do not correspond to any real entity. Reload the page for new numbers.

Cities in Essonne used for generation

The generator uses real cities and postal codes from the Essonne department to produce authentic addresses:

91000 Évry-Courcouronnes 91300 Massy 91100 Corbeil-Essonnes 91120 Palaiseau 91600 Savigny-sur-Orge

What is a SIRET generator for Essonne used for?

Developers and QA teams often need realistic test data that resembles real French companies. A department-specific SIRET generator allows you to:

  • Test forms that validate SIRET format and postal address
  • Populate demo databases with fictional companies geolocated in Essonne
  • Simulate business scenarios involving companies from the Île-de-France region
  • Train teams without using real data from existing companies

All generated SIRETs are algorithmically valid (verified Luhn key) but do not correspond to any company registered in the INSEE SIRENE registry.

FAQ

How to generate a fake SIRET number for Essonne?

Use our generator above to get fake SIRET numbers with addresses located in the Essonne department (code 91). SIRETs are generated according to the Luhn standard, accompanied by the corresponding SIREN, company name and a real postal address in the Île-de-France region.

Is it legal to use a fake SIRET number?

Yes, using fake SIRET numbers is perfectly legal in a testing, software development, training or demonstration context. It is important to never use these numbers for real commercial transactions or administrative declarations, which would constitute fraud.

What is the structure of a SIRET number?

A SIRET number consists of 14 digits: the first 9 form the SIREN number (unique identifier of the company), and the last 5 constitute the NIC (Internal Classification Number), which identifies the establishment within the company. The last digit of the SIRET is a control key calculated using the Luhn algorithm.

Can I use these fake SIRETs in an application?

Yes, the generated SIRET numbers are algorithmically valid (correct Luhn key) and can be used to test forms, APIs or databases that validate the SIRET format. However, they do not correspond to any real company in the INSEE SIRENE register.

What is the difference between SIREN and SIRET?

The SIREN (9 digits) identifies a company as a legal entity. The SIRET (14 digits) identifies a particular establishment of that company — a physical address. The same company can have multiple SIRETs (head office + branches), but only one SIREN.

Need more SIRET numbers or a CSV export?

Our main generator lets you create up to 1000 entries and export to CSV.