Company lists · Data verified August 2026

Top 25 Computer security companies based in France

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 130 companies tracked

There are 130 computer security companies headquartered in France (RevenueBase, August 2026). RevenueBase tracks 1,295 professional contacts across them, including 317 with verified work emails and 23 with mobile numbers. Paris is the largest hub.

This list covers computer security 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.

130Companies

1,295Contacts tracked

317Verified emails

23Mobile numbers

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The 25 largest computer security companies based in France

Ranked by team size

Top 25 of 130 computer security 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	Itrust	Toulouse	51-200	126	76
2	Quarkslab	Paris	51-200	94	45
3	CS In Cybersecurity	Le Plessis-Robinson	51-200	75	20
4	Eset France	Marne-La-Vallee	51-200	71	1
5	Kaspersky France And North, West & Central Africa	La Defense Cedex	1,001-5,000	39	1
6	Kytl Security	Paris	11-50	34	4
7	Randorisec	Paris	11-50	31	18
8	Five Nines	Paris	11-50	26	11
9	Sophos France	Bezons	51-200	24	12
10	Cresco Cybersecurity	Montigny-Le-Bretonneux	11-50	19	11
11	Riss-Consulting	Bry-Sur-Marne	11-50	17	12
12	Ého.Link	n/a	11-50	16	13
13	u.neat	n/a	11-50	15	5
14	Saycurit	Paris	11-50	13	8
15	Zero Trust SAS	Paris	11-50	10	7
16	Cyber Experts	Paris	1-10	10	2
17	D-Lake	Annecy	1-10	9	7
18	SBI Groupe	Avignon	1-10	9	6
19	Cyvault	Oberhausbergen	11-50	9	5
20	Highjack Offensive Cybersecurity	Reims	1-10	9	1
21	Cybercape	La Rochelle	1-10	6	1
22	Coptel Services	n/a	1-10	4	1
23	Digital2c	La Tour-Du-Pin	1-10	3	2
24	Click Secure	Lyon	1-10	3	1
25	Cyberxl	La Rochelle	1-10	3	1

Showing 25 of 130 computer security companies based in France

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Computer security companies based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 39 HQs

23Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

1,001-5,000

10001+

Computer security companies by metro

Metro	Companies
Computer security companies in Paris	39
Computer security companies in Lyon	5
Computer security companies in Toulouse	3
Computer security companies in Nantes	2
Computer security companies in Caen	2
Computer security companies in Strasbourg	2
Computer security companies in Auxerre	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 “computer security 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; 5 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 computer security companies are there based in France?

There are 130 computer security companies headquartered in France as of August 2026 (RevenueBase).

What is the largest company on this list?

Itrust, headquartered in Toulouse, tops this list with the largest team on record.

Which city has the most computer security companies?

Paris leads with 39 headquartered companies, followed by Lyon (5) and Toulouse (3).

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 317 verified decision-maker contacts tracked across these 130 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.