Company lists · Data refreshed September 2026

Top 25 Threat detection software companies based in France

RevenueBase identified 130 threat detection software companies headquartered in France as of September 2026 and tracks 3,010 professional contacts across them, including 1,191 with verified work emails and 82 with mobile numbers. Paris is the largest hub.

This list covers threat detection 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 6, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
130Companies
3,010Contacts tracked
1,191Verified emails
82Mobile numbers
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The 25 largest threat detection software companies based in France

Ranked by team size
Top 25 of 130 threat detection software companies based in France, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to threat detection 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceParis, FranceHQ checked Sep 6, 202651-200506 contacts →

“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 Sep 6, 2026
2Partial evidencePessac, FranceHQ checked Sep 6, 2026201-500185 contacts →

“TEHTRIS is the software editor of the TEHTRIS XDR Platform, the world leader in automatic, real-time, non-human neutralization of cyber attacks.”

Source: company website · checked Sep 6, 2026
3Partial evidenceClichy, FranceHQ checked Sep 6, 202651-200160 contacts →

“CybelAngel combines artificial intelligence and human expertise to help companies in all industries to detect, analyze and effectively counter cyber threats.”

Source: company website · checked Sep 6, 2026
4Strong evidenceParis, FranceHQ checked Sep 6, 202651-200138 contacts →

“European leader in intrusion detection and advanced threat detection, Gatewatcher has been protecting the critical networks of large companies as well as public institutions since…”

Source: company website · checked Sep 6, 2026
5Indirect evidenceRennes, FranceHQ checked Sep 6, 202651-200134 contacts →

“Sekoia is the European agentic cybersecurity company building the Cyber Operations Platform for the AI era.”

Source: company website · checked Sep 6, 2026
6Partial evidenceParis, FranceHQ checked Sep 6, 202651-200120 contacts →

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

Source: company website · checked Sep 6, 2026
7Indirect evidenceParis, FranceHQ checked Sep 6, 202651-20095 contacts →

“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 Sep 6, 2026
8Indirect evidenceMarne-la-vallée, FranceHQ checked Sep 6, 202651-20072 contacts →

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

Source: company website · checked Sep 6, 2026
9Partial evidenceParis, FranceHQ checked Sep 6, 202651-20068 contacts →

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

Source: company website · checked Sep 6, 2026
10Indirect evidenceParis, FranceHQ checked Sep 6, 202651-20053 contacts →

“Qevlar AI turns security operations into a self-improving defense system.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceParis, FranceHQ checked Sep 6, 202611-5050 contacts →

“Patrowl is an innovative product designed by cybersecurity experts.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceLa Defense Cedex, FranceHQ checked Sep 6, 20261,001-5,00039 contacts →

“Kaspersky est une société internationale de cybersécurité et de protection de la vie privée numérique fondée en 1997.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceParis, FranceHQ checked Sep 6, 202611-5036 contacts →

“CrowdSec is a leader in security blocklists, reshaping cybersecurity with its proactive defense strategy and unique collaborative approach.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceParis, FranceHQ checked Sep 6, 202611-5035 contacts →

“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: company website · checked Sep 6, 2026
15Indirect evidenceParis, FranceHQ checked Sep 6, 202611-5033 contacts →

“Expertise en cybersécurité - Abakus Sécurité vous accompagne sur l'ensemble du cycle de vie de vos projets en cybersécurité.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceParis, FranceHQ checked Sep 6, 202611-5032 contacts →

“Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings”

Source: company website · checked Sep 6, 2026
17Indirect evidenceParis, FranceHQ checked Sep 6, 2026201-50028 contacts →

“Enea acquired Qosmos in 2016 to be included in their broader portfolio.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceParis, FranceHQ checked Sep 6, 202611-5025 contacts →

“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: company website · checked Sep 6, 2026
19Indirect evidenceBezons, FranceHQ checked Sep 6, 202651-20023 contacts →

“Plus de 100 millions d’utilisateurs dans 150 pays ont retenu Sophos comme la meilleure défense du marché contre les menaces complexes et les risques de pertes de données.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceBry-sur-marne, FranceHQ checked Sep 6, 202611-5017 contacts →

“Network, Security and Cyber Security Company”

Source: company website · checked Sep 6, 2026
21Indirect evidenceBordeaux, FranceHQ checked Sep 6, 202611-5017 contacts →

“Web applications are at the heart of business processes.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceMarseille, FranceHQ checked Sep 6, 202611-5016 contacts →

“ÉHO.LINK est une équipe de 25 personnes ancrée à Marseille.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceNantes, FranceHQ checked Sep 6, 202611-5016 contacts →

“We tell you where, when and how you will be attacked.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceLyon, FranceHQ checked Sep 6, 202611-5013 contacts →

“Fondée en 2023, Armageddon est une start-up spécialisée dans la cybersécurité.”

Source: company website · checked Sep 6, 2026
25Strong evidenceHem, FranceHQ checked Sep 6, 2026201-50011 contacts →

“Vade is a leading cybersecurity firm specializing in AI-driven threat detection and response solutions for Microsoft collaboration suite, with a focus on serving Small to…”

Source: company website · checked Sep 6, 2026

Showing 25 of 130 threat detection software companies based in France

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Threat detection software companies based in France at a glance

As of Sep 6, 2026
39.6%Verified-email coverage
2.7%Mobile-number coverage
23.2Average contacts per company
1-10Median size (employees)
34.6%Largest-city concentration · Paris
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
80
11-50
28
51-200
12
201-500
4
501-1,000
1
1,001-5,000
5

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 threat detection 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 “threat detection 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 threat detection 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 threat detection 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, 1,191 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 6, 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.

Threat detection software companies by metro

  • Threat detection software companies in Paris45

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 threat detection 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 threat detection software companies are there based in France?

RevenueBase identified 130 threat detection 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 Paris, tops this list with the largest team on record.

Which city has the most threat detection software companies?

Paris leads with 45 headquartered companies, followed by Clermont-Ferrand (3) and Lille (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 1,191 verified decision-maker contacts tracked across these 130 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 6, 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.