How to find a French company’s contact details, and what each source really gives you

You need to reach a supplier, follow up with a company that has gone quiet, or write to a business whose name is all you know. A few simple habits will find the right contact details and tell you what each source will not give you.

First identify the right company

One name can cover several companies, and one company several establishments. INSEE’s Sirene database gives the SIREN, the SIRET numbers and the address of each establishment. It settles identity but will not let you call anyone: it contains no phone number, email or website. Public services built on this data, such as the Annuaire des Entreprises, are designed to check a business partner rather than to look up a number.

The company’s website first

If the company has a website, that is the most direct source. According to the Entreprendre Service Public page on mandatory website notices (verified on 13 October 2026), a business website must show an email address and a phone number to contact the company. Look for a “mentions légales” or “contact” link at the bottom of the page.

Two limits: not every company has a website (in our database, 79.0% of records have one), and the address shown is not always the company’s own, since a web agency or a business centre can appear instead. Check the domain of the address.

Directories and online listings

Business directories and online maps often show a phone number, opening hours and a website. For a one-off search that is convenient. Their coverage depends on who has registered, however, and their terms of use govern any reuse: check what they allow before building a list from them.

For public bodies

For a government service or local administration, you do not need a commercial list: the French government directory on service-public.fr lists national and local administrations and services.

When searching by hand is no longer enough

For a handful of companies, the method above is plenty. Once you need to reach dozens or hundreds of businesses, the same work repeats record by record. A ready-made list brings the details together: on 4 November 2026, our database held 1,577,933 records, 1,505,366 of them with a phone number, email or website. You can narrow it down to an industry and an area; prices are on the pricing page.

Before you call or write

The same Entreprendre Service Public page says that a company’s general contact details, such as a generic email address or the switchboard number, are not in themselves personal data. A mobile number or a personal email address is another matter, particularly for sole traders. In every case, respect a request not to be contacted again. The rules are summarised in B2B email and phone prospecting in France.

Frequently asked questions

How do I find a French company’s phone number?

Start with its website: the legal notice and the contact page. Failing that, use online business directories or the establishment listings in online maps. The Sirene database contains no phone numbers.

Do French companies have to publish their contact details?

If they have a website, yes: according to Entreprendre Service Public, the mandatory notices include an email address and a phone number to contact the business.

Do I have to pay for one company’s contact details?

No: the search described here is free. A paid list only makes sense if you need to reach many companies and do not want to copy their details one by one.

As of 9 November 2026. Sources: Entreprendre Service Public page F37351 (verified 13 October 2026) and the French government directory, retrieved on 9 November 2026; figures of our database as of 4 November 2026. General information, not legal advice.