Company lists · Data verified August 2026

Top 25 Cybersecurity service providers based in France

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,081 companies tracked

There are 1,081 cybersecurity service providers headquartered in France (RevenueBase, August 2026). RevenueBase tracks 14,529 professional contacts across them, including 4,796 with verified work emails and 360 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity service providers 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.

1,081Companies

14,529Contacts tracked

4,796Verified emails

360Mobile numbers

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The 25 largest cybersecurity service providers based in France

Ranked by team size

Top 25 of 1,081 cybersecurity service providers 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	I-Tracing	Courbevoie	1,001-5,000	643	394
2	own.security	Rennes	51-200	506	26
3	LINKT	Puteaux	201-500	440	264
4	Synetis	Cesson-Sevigne	201-500	369	209
5	Devoteam Cyber Trust	Levallois-Perret	10001+	342	145
6	Foliateam	n/a	201-500	310	185
7	Formind	Issy-Les-Moulineaux	201-500	252	136
8	Intrinsec	Courbevoie	201-500	247	140
9	Airbus Defence And Space Cyber	Elancourt	501-1,000	223	133
10	Cybelangel	Clichy	51-200	161	97
11	S3ns	Paris	51-200	153	85
12	Services Network Security	Montpellier	201-500	145	83
13	ADNOV	n/a	201-500	139	67
14	Itrust	Toulouse	51-200	126	76
15	Alleo DE Bouygues Telecom	Dardilly	51-200	119	42
16	XMCO	Labege	51-200	112	4
17	Quarkslab	Paris	51-200	94	45
18	Exclusive Networks France	Boulogne Billancourt	51-200	93	62
19	AXIDO	La Chapelle-Saint-Mesmin	201-500	91	57
20	Infinigate France	Boulogne-Billancourt	1,001-5,000	90	56
21	Sekera	Saint-Quentin-En-Yvelines	51-200	86	28
22	Magellan Sécurité	Romilly-Sur-Seine	51-200	76	33
23	CS In Cybersecurity	Le Plessis-Robinson	51-200	75	20
24	Aduneo	Malakoff	51-200	73	36
25	Ody-C	Rennes	51-200	71	44

Showing 25 of 1,081 cybersecurity service providers based in France

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Cybersecurity service providers based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 276 HQs

360Contacts with mobile numbers

10Emails re-verified in last 30 days

Companies by employee count

1-10

717

11-50

267

51-200

201-500

501-1,000

1,001-5,000

10001+

Cybersecurity service providers by metro

Metro	Companies
Cybersecurity service providers in Paris	276
Cybersecurity service providers in Lyon	32
Cybersecurity service providers in Toulouse	20
Cybersecurity service providers in Rennes	16
Cybersecurity service providers in Lille	15
Cybersecurity service providers in Boulogne-Billancourt	15
Cybersecurity service providers in Puteaux	14

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 service providers”, 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; 10 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 service providers are there based in France?

There are 1,081 cybersecurity service providers headquartered in France as of August 2026 (RevenueBase).

What is the largest company on this list?

I-Tracing, headquartered in Courbevoie, tops this list with the largest team on record.

Which city has the most cybersecurity service providers?

Paris leads with 276 headquartered companies, followed by Lyon (32) and Toulouse (20).

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 4,796 verified decision-maker contacts tracked across these 1,081 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.