Company lists · Data refreshed August 2026

Top 25 Cybersecurity companies based in France

Our directory lists 1,114 cybersecurity companies based in France, with 15,196 professional contacts and 4,498 email addresses. The list was last updated in August 2026, and Paris is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Aug 29, 2026 86% judged on-target in blind review
1,114Companies
15,196Contacts tracked
4,498Verified emails
482Mobile numbers
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The 25 largest cybersecurity companies based in France

Ranked by team size
Top 25 of 1,114 cybersecurity companies based in France, ranked by team size, largest first. Data refreshed Aug 29, 2026. Evidence rates how directly each company's own description names cybersecurity companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
I-TracingStrong evidence
Courbevoie, France1,001-5,000643

“I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…”

Source: company website · checked Aug 29, 2026
2
own.securityStrong evidence
Rennes, France51-200506

“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: company website · checked Aug 29, 2026
3
TrackforceIndirect evidence
Maisons, France201-500400

“Trackforce stands at the forefront of the physical security industry, combining over 40 years of collective security expertise with cutting-edge innovation.”

Source: company website · checked Aug 29, 2026
4
Devoteam Cyber TrustStrong evidence
Levallois-Perret, France10001+342

“Devoteam Cyber Trust is the cybersecurity specialist arm of the Devoteam Group.”

Source: company website · checked Aug 29, 2026
5
FormindIndirect evidence
Issy-Les-Moulineaux, France201-500252

“Formind est un leader français indépendant, expert en cybersécurité.”

Source: company website · checked Aug 29, 2026
6Elancourt, France501-1,000223

“The Cyber business of Airbus Defence and Space is a European specialist in cyber security for defence and aerospace systems and assets.”

Source: company website · checked Aug 29, 2026
7
Stanley Security FranceIndirect evidence
Francheville, France1,001-5,000191

“STANLEY Security est devenu Securitas Technology en 2022.”

Source: company website · checked Aug 29, 2026
8
SynacktivIndirect evidence
Toulouse, France51-200170

“Synacktiv is an offensive security company founded in 2012 by several security experts.”

Source: company website · checked Aug 29, 2026
9
FiligranStrong evidence
Paris, France201-500167

“Filigran, a cybersecurity company, delivers a unique open-source, threat-informed approach to Continuous Threat Exposure Management (CTEM).”

Source: company website · checked Aug 29, 2026
10
S3nsIndirect evidence
Paris, France51-200153

“Alliance entre #Thales, leader français de la #cybersécurité, et #Google, leader mondial du #Cloud proposant les meilleures technologies au service de l’#innovation, S3NS a pour…”

Source: company website · checked Aug 29, 2026
11
Services Network SecurityIndirect evidence
Montpellier, France201-500145

“Créée en Juin 2002, Services Network Security est spécialisée dans la sécurisation des passerelles internet et dans les interconnexions VPN.”

Source: company website · checked Aug 29, 2026
12
ADNOVIndirect evidence
France201-500139

“ADNOV, filiale du groupe ADSN, acteur de renommée française à l'ancrage national, développe depuis plus de 40 ans une expertise reconnue dans la cybersécurité et la protection des…”

Source: company website · checked Aug 29, 2026
13
ItrustStrong evidence
Toulouse, France51-200126

“Since January 2007, ITrust has been offering cybersecurity solutions and expertise in 6 different countries on the European market.”

Source: company website · checked Aug 29, 2026
14
HarfanglabIndirect evidence
Paris, France51-200119

“Your endpoints, our protection - Empower your analysts, overcome the threats”

Source: company website · checked Aug 29, 2026
15
XMCOIndirect evidence
Labege, France51-200112

“Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).”

Source: company website · checked Aug 29, 2026
16
EgerieStrong evidence
Paris, France51-200110

“At Egerie, we believe cybersecurity shouldn't be a constraint, it should be a true driver of sustainable performance.”

Source: company website · checked Aug 29, 2026
17
QuarkslabIndirect evidence
Paris, France51-20094

“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: company website · checked Aug 29, 2026
18
Devensys CybersecurityIndirect evidence
Suresnes, France51-20091

“Pure Player français en cybersécurité, fondé il y a 13 ans.”

Source: company website · checked Aug 29, 2026
19
Infinigate FranceIndirect evidence
Boulogne-Billancourt, France1,001-5,00090

“Le groupe Infinigate est un distributeur à valeur ajoutée, entièrement dévoué aux solutions de cybersécurité durables et de pointe.”

Source: company website · checked Aug 29, 2026
20
SekeraIndirect evidence
Saint-Quentin-En-Yvelines, France51-20086

“Sekera Services est un cabinet de conseil homologué par la DGSSI comme prestataire d’audit de sécurité SI (PASSI) répondant aux exigences en termes de démarche et qualifications…”

Source: company website · checked Aug 29, 2026
21
Magellan SécuritéIndirect evidence
Romilly-Sur-Seine, France51-20076

“Magellan Sécurité, an entity of the Magellan Partners Group, offers integrated solutions to protect against internal threats and cyber attacks.”

Source: company website · checked Aug 29, 2026
22
CS In CybersecurityIndirect evidence
Le Plessis-Robinson, France51-20075

“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: company website · checked Aug 29, 2026
23
AduneoIndirect evidence
Malakoff, France51-20073

“Aduneo vous accompagne à chaque étape pour protéger vos identités, sécuriser vos données et simplifier votre quotidien.”

Source: company website · checked Aug 29, 2026
24
Eset FranceIndirect evidence
Marne-La-Vallee, France51-20071

“Depuis plus de 30 ans, nous sommes là pour veiller à la protection du progrès et de l'innovation.”

Source: company website · checked Aug 29, 2026
25
StrangebeeStrong evidence
Paris, France51-20066

“StrangeBee is a cybersecurity software company based in Paris.”

Source: company website · checked Aug 29, 2026

Showing 25 of 1,114 cybersecurity companies based in France

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Cybersecurity companies based in France at a glance

As of Aug 29, 2026
1-10Median size (employees)
ParisLargest hub · 340 HQs
482Contacts with mobile numbers
Aug 29, 2026Data refreshed

Companies by employee count

1-10
735
11-50
270
51-200
67
201-500
20
501-1,000
5
1,001-5,000
10
10001+
2

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 companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among cybersecurity 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 an evidence 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, 4,498 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 August 29, 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.

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 1,114 cybersecurity companies based in France.

Which city has the most cybersecurity companies?

Paris is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 15,196 professional contacts and 4,498 email addresses for the listed cybersecurity companies.

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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 SmartSearch, 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.