Company lists · Data verified August 2026

Top 25 Cybersecurity support companies based in France

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 903 companies tracked

There are 903 cybersecurity support companies headquartered in France (RevenueBase, August 2026). RevenueBase tracks 10,657 professional contacts across them, including 2,981 with verified work emails and 263 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity support 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.

903Companies

10,657Contacts tracked

2,981Verified emails

263Mobile numbers

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The 25 largest cybersecurity support companies based in France

Ranked by team size

Top 25 of 903 cybersecurity support 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	I-Tracing	Courbevoie	1,001-5,000	643	394
2	own.security	Rennes	51-200	506	26
3	Devoteam Cyber Trust	Levallois-Perret	10001+	342	145
4	Formind	Issy-Les-Moulineaux	201-500	252	136
5	Synacktiv	Toulouse	51-200	170	125
6	Cybelangel	Clichy	51-200	161	97
7	ADNOV	n/a	201-500	139	67
8	Itrust	Toulouse	51-200	126	76
9	Alleo DE Bouygues Telecom	Dardilly	51-200	119	42
10	XMCO	Labege	51-200	112	4
11	Egerie	Paris	51-200	110	50
12	Quarkslab	Paris	51-200	94	45
13	Exclusive Networks France	Boulogne Billancourt	51-200	93	62
14	Sekera	Saint-Quentin-En-Yvelines	51-200	86	28
15	CS In Cybersecurity	Le Plessis-Robinson	51-200	75	20
16	Aduneo	Malakoff	51-200	73	36
17	Ody-C	Rennes	51-200	71	44
18	Eset France	Marne-La-Vallee	51-200	71	1
19	Login Sécurité	Saint-Cloud	51-200	60	28
20	Vona Consulting	Paris	51-200	57	30
21	Cyberlift	Paris	51-200	55	31
22	Techso Group	Paris	51-200	54	24
23	Sysdream	Levallois-Perret	51-200	53	19
24	Copwell	Clichy	51-200	51	8
25	AISI	Montpellier	51-200	50	31

Showing 25 of 903 cybersecurity support companies based in France

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Cybersecurity support companies based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 253 HQs

263Contacts with mobile numbers

6Emails re-verified in last 30 days

Companies by employee count

1-10

627

11-50

205

51-200

201-500

1,001-5,000

10001+

Cybersecurity support companies by metro

Metro	Companies
Cybersecurity support companies in Paris	253
Cybersecurity support companies in Lyon	29
Cybersecurity support companies in Toulouse	19
Cybersecurity support companies in Rennes	13
Cybersecurity support companies in Lille	12
Cybersecurity support companies in Puteaux	12
Cybersecurity support companies in Boulogne-Billancourt	11

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 support 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; 6 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 support companies are there based in France?

There are 903 cybersecurity support companies 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 support companies?

Paris leads with 253 headquartered companies, followed by Lyon (29) and Toulouse (19).

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 2,981 verified decision-maker contacts tracked across these 903 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.