Company lists · Data verified August 2026

Top 25 Cybersecurity engineers based in France

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 502 companies tracked

There are 502 cybersecurity engineers headquartered in France (RevenueBase, August 2026). RevenueBase tracks 7,441 professional contacts across them, including 2,387 with verified work emails and 162 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity engineers 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.

502Companies

7,441Contacts tracked

2,387Verified emails

162Mobile numbers

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The 25 largest cybersecurity engineers based in France

Ranked by team size

Top 25 of 502 cybersecurity engineers 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	Metsys	Lille	501-1,000	408	246
4	Devoteam Cyber Trust	Levallois-Perret	10001+	342	145
5	Airbus Defence And Space Cyber	Elancourt	501-1,000	223	133
6	Synacktiv	Toulouse	51-200	170	125
7	Itrust	Toulouse	51-200	126	76
8	Quarkslab	Paris	51-200	94	45
9	CS In Cybersecurity	Le Plessis-Robinson	51-200	75	20
10	Aduneo	Malakoff	51-200	73	36
11	LEXFO	Paris	51-200	65	40
12	OLFEO	Massy	51-200	60	43
13	Scassi	n/a	51-200	57	29
14	Cyberlift	Paris	51-200	55	31
15	Techso Group	Paris	51-200	54	24
16	Sealsq	Meyreuil	51-200	53	40
17	AISI	Montpellier	51-200	50	31
18	Adenis	Bagnolet	51-200	43	15
19	Ornisec	Rennes	11-50	40	16
20	CYSEC	Toulouse	11-50	39	15
21	Løvell	Paris	11-50	38	25
22	ERIUM	n/a	51-200	38	15
23	MGM Solutions	Bron	11-50	35	23
24	Kytl Security	Paris	11-50	34	4
25	Excube	Lyon	11-50	33	22

Showing 25 of 502 cybersecurity engineers based in France

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Cybersecurity engineers based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 159 HQs

162Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

330

11-50

124

51-200

201-500

501-1,000

1,001-5,000

10001+

Cybersecurity engineers by metro

Metro	Companies
Cybersecurity engineers in Paris	159
Cybersecurity engineers in Lyon	18
Cybersecurity engineers in Toulouse	11
Cybersecurity engineers in Lille	9
Cybersecurity engineers in Rennes	9
Cybersecurity engineers in Nantes	7
Cybersecurity engineers in Boulogne-Billancourt	7

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 engineers”, 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 engineers are there based in France?

There are 502 cybersecurity engineers 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 engineers?

Paris leads with 159 headquartered companies, followed by Lyon (18) and Toulouse (11).

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 2,387 verified decision-maker contacts tracked across these 502 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.