Company lists · Data verified August 2026

Top 25 Cybersecurity software companies based in France

Name: Cybersecurity software companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 197 companies tracked

There are 197 cybersecurity software companies headquartered in France (RevenueBase, August 2026). RevenueBase tracks 3,182 professional contacts across them, including 799 with verified work emails and 69 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity software companies headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

197Companies

3,182Contacts tracked

799Verified emails

69Mobile numbers

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The 25 largest cybersecurity software companies based in France

Ranked by team size

Top 25 of 197 cybersecurity software companies based in France, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	own.security	Rennes	51-200	506	26
2	Airbus Defence And Space Cyber	Elancourt	501-1,000	223	133
3	Cybelangel	Clichy	51-200	161	97
4	Itrust	Toulouse	51-200	126	76
5	Quarkslab	Paris	51-200	94	45
6	CS In Cybersecurity	Le Plessis-Robinson	51-200	75	20
7	Eset France	Marne-La-Vallee	51-200	71	1
8	Strangebee	Paris	51-200	66	42
9	Tenacy	Lyon	51-200	61	27
10	Amossys Groupe Almond	Rennes	201-500	57	28
11	Dattak	Paris	51-200	51	28
12	CYSEC	Toulouse	11-50	39	15
13	Kaspersky France And North, West & Central Africa	La Defense Cedex	1,001-5,000	39	1
14	ERIUM	n/a	51-200	38	15
15	Kytl Security	Paris	11-50	34	4
16	Randorisec	Paris	11-50	31	18
17	Sec-It	Aix-En-Provence	11-50	26	11
18	Five Nines	Paris	11-50	26	11
19	Seclab	Perols	11-50	22	13
20	Sylink Technologie	Saint-Jacques-De-La-Lande	201-500	21	1
21	Cresco Cybersecurity	Montigny-Le-Bretonneux	11-50	19	11
22	Riss-Consulting	Bry-Sur-Marne	11-50	17	12
23	Ého.Link	n/a	11-50	16	13
24	V6protect	Bordeaux	11-50	16	8
25	Intuity	Paris	11-50	16	7

Showing 25 of 197 cybersecurity software companies based in France

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Cybersecurity software companies based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 61 HQs

69Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

132

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Cybersecurity software companies by metro

Metro	Companies
Cybersecurity software companies in Paris	61
Cybersecurity software companies in Lyon	11
Cybersecurity software companies in Toulouse	7
Cybersecurity software companies in Lille	4
Cybersecurity software companies in Caen	2
Cybersecurity software companies in Boulogne-Billancourt	2
Cybersecurity software companies in Aix-En-Provence	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity software companies”, with match quality audited by blind human judging, and headquartered in France.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Contact records re-verify on a rolling cadence; 3 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity software companies are there based in France?

There are 197 cybersecurity software companies headquartered in France as of August 2026 (RevenueBase).

What is the largest company on this list?

own.security, headquartered in Rennes, tops this list with the largest team on record.

Which city has the most cybersecurity software companies?

Paris leads with 61 headquartered companies, followed by Lyon (11) and Toulouse (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 799 verified decision-maker contacts tracked across these 197 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.