Company lists · Data refreshed September 2026

Top 25 Cybersecurity software companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 197 companies tracked

RevenueBase identified 197 cybersecurity software companies headquartered in France as of September 2026 and tracks 3,182 professional contacts across them, including 799 with verified work emails and 69 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity software companies headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

197Companies

3,182Contacts tracked

799Verified emails

69Mobile numbers

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The 25 largest cybersecurity software companies based in France

Ranked by team size

Top 25 of 197 cybersecurity software companies based in France, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	own.security	Partial evidence	Rennes, France	51-200	506 contacts →
	Partial evidence “Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Source: RevenueBase Database · checked Sep 1, 2026
2	Airbus Defence And Space Cyber	Indirect evidence	Elancourt, France	501-1,000	223 contacts →
	Indirect evidence “The Cyber business of Airbus Defence and Space is a European specialist in cyber security for defence and aerospace systems and assets.” Source: RevenueBase Database · checked Sep 1, 2026
3	Cybelangel	Indirect evidence	Clichy, France	51-200	161 contacts →
	Indirect evidence “CybelAngel combines artificial intelligence and human expertise to help companies in all industries to detect, analyze and effectively counter cyber threats.” Source: RevenueBase Database · checked Sep 1, 2026
4	Itrust	Partial evidence	Toulouse, France	51-200	126 contacts →
	Partial evidence “Since January 2007, ITrust has been offering cybersecurity solutions and expertise in 6 different countries on the European market.” Source: RevenueBase Database · checked Sep 1, 2026
5	Quarkslab	Indirect evidence	Paris, France	51-200	94 contacts →
	Indirect evidence “Fondée en 2011 par Fred Raynal, Quarkslab est une entreprise française spécialisée dans la cybersécurité et plus spécifiquement dans la protection et l'analyse des logiciels.” Source: RevenueBase Database · checked Sep 1, 2026
6	CS In Cybersecurity	Indirect evidence	Le Plessis-Robinson, France	51-200	75 contacts →
	Indirect evidence “Acteur majeur de la cybersécurité, CS Group s'appuie sur ses équipes sont composées d’experts pluridisciplinaires qui offrent à nos clients une vision claire et une capacité…” Source: RevenueBase Database · checked Sep 1, 2026
7	Eset France	Indirect evidence	Marne-La-Vallee, France	51-200	71 contacts →
	Indirect evidence “Depuis plus de 30 ans, nous sommes là pour veiller à la protection du progrès et de l'innovation.” Source: RevenueBase Database · checked Sep 1, 2026
8	Strangebee	Strong evidence	Paris, France	51-200	66 contacts →
	Strong evidence “StrangeBee is a cybersecurity software company based in Paris.” Source: RevenueBase Database · checked Sep 1, 2026
9	Tenacy	Partial evidence	Lyon, France	51-200	61 contacts →
	Partial evidence “Tenacy is on a mission to make cybersecurity and compliance a business accelerator for organizations thanks to a more rationalized used of their cyber resources.” Source: RevenueBase Database · checked Sep 1, 2026
10	Amossys Groupe Almond	Indirect evidence	Rennes, France	201-500	57 contacts →
	Indirect evidence “Toute l’expertise cyber, une seule marque : AMOSSYS devient ALMOND.” Source: RevenueBase Database · checked Sep 1, 2026
11	Dattak	Indirect evidence	Paris, France	51-200	51 contacts →
	Indirect evidence “Dattak is an insurtech with a mission to protect businesses against cyberattacks.” Source: RevenueBase Database · checked Sep 1, 2026
12	CYSEC	Partial evidence	Toulouse, France	11-50	39 contacts →
	Partial evidence “CYSEC is a European cybersecurity company based in Luxembourg with additional locations in Switzerland and France.” Source: RevenueBase Database · checked Sep 1, 2026
13	Kaspersky France And North, West & Central Africa	Indirect evidence	La Defense Cedex, France	1,001-5,000	39 contacts →
	Indirect evidence “Kaspersky est une société internationale de cybersécurité et de protection de la vie privée numérique fondée en 1997.” Source: RevenueBase Database · checked Sep 1, 2026
14	ERIUM	Indirect evidence	France	51-200	38 contacts →
	Indirect evidence “To be confident in your cyber defences, every person and technology must be confronted by reality.” Source: RevenueBase Database · checked Sep 1, 2026
15	Kytl Security	Indirect evidence	Paris, France	11-50	34 contacts →
	Indirect evidence “KYTL \| Spécialiste de la protection des données et des environnements critiques; Fondée par des experts en cybersécurité cumulant plus de 15 ans d’expérience, KYTL accompagne les…” Source: RevenueBase Database · checked Sep 1, 2026
16	Randorisec	Partial evidence	Paris, France	11-50	31 contacts →
	Partial evidence “Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings” Source: RevenueBase Database · checked Sep 1, 2026
17	Sec-It	Indirect evidence	Aix-En-Provence, France	11-50	26 contacts →
	Indirect evidence “SEC-IT, filiale du groupe MCA, est le partenaire de référence en cybersécurité, combinant expertise en audit conseil, sécurité opérationnelle et formation pour accompagner les…” Source: RevenueBase Database · checked Sep 1, 2026
18	Five Nines	Indirect evidence	Paris, France	11-50	26 contacts →
	Indirect evidence “Five Nines est née en 2019 d’un constat simple, celui d’un manque crucial de compétences et d’expérience dans la sécurisation de la transformation digitale des entreprises.” Source: RevenueBase Database · checked Sep 1, 2026
19	Seclab	Indirect evidence	Perols, France	11-50	22 contacts →
	Indirect evidence “As France's leading provider of cyber protection for critical systems, Seclab secures exchanges by simplifying interconnection architectures and eliminating the risks associated…” Source: RevenueBase Database · checked Sep 1, 2026
20	Sylink Technologie	Partial evidence	Saint-Jacques-De-La-Lande, France	201-500	21 contacts →
	Partial evidence “SYLink Technologie is an innovative player in the field of cybersecurity, dedicated to protecting networks, connected devices, and sensitive company data.” Source: RevenueBase Database · checked Sep 1, 2026
21	Cresco Cybersecurity	Partial evidence	Montigny-Le-Bretonneux, France	11-50	19 contacts →
	Partial evidence “Cresco is your partner in cybersecurity.” Source: RevenueBase Database · checked Sep 1, 2026
22	Riss-Consulting	Indirect evidence	Bry-Sur-Marne, France	11-50	17 contacts →
	Indirect evidence “Network, Security and Cyber Security Company” Source: RevenueBase Database · checked Sep 1, 2026
23	Ého.Link	Indirect evidence	France	11-50	16 contacts →
	Indirect evidence “ÉHO.LINK est une équipe de 25 personnes ancrée à Marseille.” Source: RevenueBase Database · checked Sep 1, 2026
24	V6protect	Indirect evidence	Bordeaux, France	11-50	16 contacts →
	Indirect evidence “Web applications are at the heart of business processes.” Source: RevenueBase Database · checked Sep 1, 2026
25	Intuity	Indirect evidence	Paris, France	11-50	16 contacts →
	Indirect evidence “Nous aidons les entreprises à sécuriser leurs actifs, tels que leurs applications web et leurs systèmes d'information, tout en renforçant la sécurité globale des organisations.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity software companies.
Partial evidence: Its own public description names part of cybersecurity software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 197 cybersecurity software companies based in France

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Cybersecurity software companies based in France at a glance

As of Sep 1, 2026

25.1%Verified-email coverage

2.2%Mobile-number coverage

16.2Average contacts per company

1-10Median size (employees)

31.0%Largest-city concentration · Paris

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

132

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “cybersecurity software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity software companies, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 799 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity software companies by metro

Cybersecurity software companies in Paris61

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity software companies are there based in France?

RevenueBase identified 197 cybersecurity software companies headquartered in France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

own.security, headquartered in Rennes, tops this list with the largest team on record.

Which city has the most cybersecurity software companies?

Paris leads with 61 headquartered companies, followed by Lyon (11) and Toulouse (7).

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 799 verified decision-maker contacts tracked across these 197 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.