Company lists · Data verified August 2026

Top 25 Cybersecurity investigation companies based in France

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 510 companies tracked

There are 510 cybersecurity investigation companies headquartered in France (RevenueBase, August 2026). RevenueBase tracks 6,459 professional contacts across them, including 1,901 with verified work emails and 171 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity investigation 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.

510Companies

6,459Contacts tracked

1,901Verified emails

171Mobile numbers

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The 25 largest cybersecurity investigation companies based in France

Ranked by team size

Top 25 of 510 cybersecurity investigation 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	Synacktiv	Toulouse	51-200	170	125
4	Cybelangel	Clichy	51-200	161	97
5	ADNOV	n/a	201-500	139	67
6	Itrust	Toulouse	51-200	126	76
7	Seris Airport	Paris	1,001-5,000	120	2
8	XMCO	Labege	51-200	112	4
9	Egerie	Paris	51-200	110	50
10	Quarkslab	Paris	51-200	94	45
11	CS In Cybersecurity	Le Plessis-Robinson	51-200	75	20
12	Aduneo	Malakoff	51-200	73	36
13	SIREN	Talence	51-200	70	44
14	LEXFO	Paris	51-200	65	40
15	Cyberlift	Paris	51-200	55	31
16	Techso Group	Paris	51-200	54	24
17	Sysdream	Levallois-Perret	51-200	53	19
18	AISI	Montpellier	51-200	50	31
19	Ornisec	Rennes	11-50	40	16
20	Løvell	Paris	11-50	38	25
21	ERIUM	n/a	51-200	38	15
22	MGM Solutions	Bron	11-50	35	23
23	Kytl Security	Paris	11-50	34	4
24	Bsecure	Paris	51-200	33	18
25	Randorisec	Paris	11-50	31	18

Showing 25 of 510 cybersecurity investigation companies based in France

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Cybersecurity investigation companies based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 170 HQs

171Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

352

11-50

113

51-200

201-500

1,001-5,000

10001+

Cybersecurity investigation companies by metro

Metro	Companies
Cybersecurity investigation companies in Paris	170
Cybersecurity investigation companies in Lyon	18
Cybersecurity investigation companies in Toulouse	13
Cybersecurity investigation companies in Rennes	10
Cybersecurity investigation companies in Lille	9
Cybersecurity investigation companies in Nantes	6
Cybersecurity investigation companies in Boulogne-Billancourt	6

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 investigation 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 cybersecurity investigation companies are there based in France?

There are 510 cybersecurity investigation 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 investigation companies?

Paris leads with 170 headquartered companies, followed by Lyon (18) and Toulouse (13).

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 1,901 verified decision-maker contacts tracked across these 510 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.