Trade
Words, not codes
“plumber” or “plombier” is turned into NAF activity codes by the same matcher Mailbase uses. If you know the code, type it, e.g. 43.22A.
How many prospects in your area?
Describe a trade or type a NAF code, pick a département and a size. The tool reads the official French company register and tells you how many active companies match, with ten of them.
01What it does
The official register, queried the way Mailbase queries it.
The French register lists every company registered in France with its main activity, address and headcount band. It is the most complete starting point for a list of French prospects.
Area
One département or all of France
As in the register, a company counts as soon as one of its establishments is in the département: its head office or a branch. The examples then show the establishment in that département.
Size
INSEE headcount bands
The register classes companies by band, not exact headcount: “1–9 employees” is bands 01 to 03. Companies with no declared employees are a separate class.
Examples
Ten companies, no contact data
Name, town, size and creation date, in the register's own order. The register holds no email or phone, and companies that opted out of publication are never shown.
Read more: How to find companies in France · Bases de données d’entreprises (FR)
02Questions
What people ask.
Where do the numbers come from?
From the French State's company search API (recherche-entreprises.api.gouv.fr), which publishes INSEE's SIRENE data and the national company register. Only active companies are counted, and the numbers move every day.
Why does the count stop at 10,000?
The public API stops counting at 10,000 results per search. Above that the tool shows 10,000+: there are at least that many. Narrow the area or the size to get an exact figure.
Can I download the full list?
Not here: the tool shows the volume and ten examples. In Mailbase the whole list is extracted, deduplicated on SIREN, and each company's email is found on its own website and verified before anything is sent.
Why does my trade map to several NAF codes?
A common trade often spans several declared activities. The tool keeps up to three codes and shows them, so you can see exactly what is counted.
Can this data be used for prospecting?
Yes, for B2B: the register is public, and French rules allow B2B email prospecting when the message concerns the person's job, they are told where their address came from and can easily object. Companies that opted out of publication are excluded.
03Free tools
More free tools.
French company lookupA name, a SIREN or a SIRET: what the register publishes — activity code, head office, creation date, size, leaders.Open the toolCold email subject linesWho you write to and what you offer: subject lines that read like a person wrote them, with what to avoid flagged.Open the toolDomain checkSPF, DKIM, DMARC and MX read from DNS, with what each one means and what to fix.Open the toolCold email checkerPaste a first email: length, links, pressure words, the question, the way to say no — in English or French.Open the toolSPF record generatorTick the services you send through and get one valid SPF record, inside the 10-lookup limit.Open the toolDMARC record generatorPick a policy and a report address; get the record and where to put it.Open the tool