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B2B leads in France. Start from the register.
International contact databases are built largely from websites and profiles, and many small and mid-size companies in France barely show up in them. The official register has every company. Here is how to go from the register to a list you can work.
What Atlas holds for France
Source: the Atlas database, updated automatically.
1. The official sources
- Sirene (INSEE): SIREN (9 digits), SIRET for establishments, NAF code, address, creation date and administrative state. Open and free.
- National company register (RNE, INPI): legal form, directors and filings. Also searchable on annuaire-entreprises.data.gouv.fr.
- Mentions légales: required on business websites, with company name, SIREN and contact.
2. Define the segment
Use three coordinates the register can answer: the industry code, the region and the size. Add a reason to get in touch now, such as a newly registered company, a new director or a won public tender.
3. Remove closed companies
Almost half of the legal units in the Sirene file are closed (43.9 % on 22 July 2026). Always filter on the active administrative state. Read more in our register audit.
4. Find the contact
The company's own website gives the contact page, the management and open jobs. Check that the website really belongs to the company, with the registration number or a distinguishing name on the page. Parked domains and pages of another company with a similar name are a common source of wrong data.
5. The rules for outreach
According to the CNIL, B2B prospecting by email is possible without prior consent when the message relates to the person's job and they can opt out easily. The GDPR applies to named addresses.
This is a general overview, not legal advice.
How Atlas helps
Atlas searches companies by industry, region and registration date, and looks for the website, phone, email and decision-maker in public sources. The source is shown next to every piece of data, and if nothing is found the field stays empty. Coverage varies a lot by country, see the measured coverage page. Price: 600 euros for two months plus VAT, no credits.