Company lists · Data verified August 2026

Top 25 Data security companies based in France

Name: Data 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 134 companies tracked

There are 134 data security companies headquartered in France (RevenueBase, August 2026). RevenueBase tracks 1,608 professional contacts across them, including 477 with verified work emails and 82 with mobile numbers. Paris is the largest hub.

This list covers data 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.

134Companies

1,608Contacts tracked

477Verified emails

82Mobile numbers

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The 25 largest data security companies based in France

Ranked by team size

Top 25 of 134 data 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	Verimatrix	Meyreuil	201-500	222	116
2	ADNOV	n/a	201-500	139	67
3	Itrust	Toulouse	51-200	126	76
4	CS In Cybersecurity	Le Plessis-Robinson	51-200	75	20
5	Eset France	Marne-La-Vallee	51-200	71	1
6	Lockself	Asnieres-Sur-Seine	51-200	65	37
7	Kytl Security	Paris	11-50	34	4
8	Beemo Technologie	Perols	11-50	28	20
9	Sophos France	Bezons	51-200	24	12
10	Dowsers	Paris	11-50	21	10
11	Sylink Technologie	Saint-Jacques-De-La-Lande	201-500	21	1
12	Prorexem	La Talaudiere	11-50	16	12
13	Cosmian	Paris	11-50	15	13
14	DND Agency	Paris	11-50	13	2
15	Cyferall	Paris	1-10	11	4
16	Zero Trust SAS	Paris	11-50	10	7
17	Apsecurity	Charleville-Mezieres	1-10	10	1
18	D-Lake	Annecy	1-10	9	7
19	SIKUR	Valbonne	11-50	9	3
20	cybersolutions.fr	Paris	11-50	9	2
21	Pilliot Cybersecurite ET Informatique	Aire Sur La Lys	51-200	9	1
22	BKUBE	Nice	1-10	7	1
23	Cybercape	La Rochelle	1-10	6	1
24	Priamos	n/a	1-10	6	1
25	Difenso	Paris	11-50	5	1

Showing 25 of 134 data security companies based in France

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Data security companies based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 35 HQs

82Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Data security companies by metro

Metro	Companies
Data security companies in Paris	35
Data security companies in Lyon	5
Data security companies in Toulouse	3
Data security companies in Nice	3
Data security companies in St-Etienne	2
Data security companies in Lille	2
Data security companies in Rennes	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 “data 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; 1 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 data security companies are there based in France?

There are 134 data security companies headquartered in France as of August 2026 (RevenueBase).

What is the largest company on this list?

Verimatrix, headquartered in Meyreuil, tops this list with the largest team on record.

Which city has the most data security companies?

Paris leads with 35 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 477 verified decision-maker contacts tracked across these 134 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.