Company lists · Data refreshed September 2026

Top 24 Breach detection services based in France

Name: Breach detection services based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 58 companies tracked

RevenueBase identified 58 breach detection services headquartered in France as of September 2026 and tracks 2,661 professional contacts across them, including 1,101 with verified work emails. Paris is the largest hub.

This list covers breach detection services 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 19, 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 19, 2026 86% judged on-target in blind review

58Companies

2,661Contacts tracked

1,101Verified emails

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The 24 largest breach detection services based in France

Ranked by team size

Top 24 of 58 breach detection services based in France, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to breach detection services: 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	I-Tracing	Indirect evidence	Courbevoie, FranceHQ checked Sep 19, 2026	1,001-5,000	639 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 19, 2026
2	own.security	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	506 contacts →
	Indirect 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 19, 2026
3	Cybelangel	Indirect evidence	Clichy, FranceHQ checked Sep 19, 2026	51-200	160 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 19, 2026
4	Gatewatcher	Partial evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	138 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 19, 2026
5	Sekoia	Indirect evidence	Rennes, FranceHQ checked Sep 19, 2026	51-200	134 contacts →
	Indirect evidence “Sekoia is the European agentic cybersecurity company building the Cyber Operations Platform for the AI era.” Source: RevenueBase Database · checked Sep 19, 2026
6	Kytl Security	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	35 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 19, 2026
7	Five Nines	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	25 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 19, 2026
8	Sec-Cure	Indirect evidence	Mérignies, FranceHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Sec-Cure est la marque commerciale de DC Communication.” Source: RevenueBase Database · checked Sep 19, 2026
9	Intuity	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	11-50	15 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 19, 2026
10	AKYL	Indirect evidence	Pantin, FranceHQ checked Sep 19, 2026	1-10	11 contacts →
	Indirect evidence “LA CYBERSÉCURITÉ, VERSION AKYL Une approche aussi pragmatique que passionnée.” Source: RevenueBase Database · checked Sep 19, 2026
11	Cybertic	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	1-10	10 contacts →
	Indirect evidence “Cyber attaque, pénétration, hameçonnage… Depuis 2010 et la multiplication des Cyber-attaques, la cyber sécurité n’est plus une option pour les DSI, sa maîtrise est devenu…” Source: RevenueBase Database · checked Sep 19, 2026
12	Highjack Offensive Cybersecurity	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	1-10	10 contacts →
	Indirect evidence “Chez High Jack, nous sommes bien plus que des accompagnateurs de digitalisation, nous sommes des catalyseurs de la transformation numérique de votre structure!” Source: RevenueBase Database · checked Sep 19, 2026
13	WELAN	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “WELAN est une société de conseil en cybersécurité qui accompagne les entreprises de toutes tailles désireuses de se protéger contre les menaces numériques croissantes.” Source: RevenueBase Database · checked Sep 19, 2026
14	Anguis	Indirect evidence	Toulouse, FranceHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Chez Anguis, nous sommes bien plus qu'une entreprise de sécurité informatique : nous sommes des architectes de la confiance numérique.” Source: RevenueBase Database · checked Sep 19, 2026
15	Oxydian	Indirect evidence	Labège, FranceHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Oxydian est une société innovante de service en cybersécurité Nos experts en sécurité offensive réalisent des audits intrusifs et développent des solutions techniques novatrices…” Source: RevenueBase Database · checked Sep 19, 2026
16	Akaoma	Indirect evidence	Jouy Sur Eure, FranceHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “AKAOMA – Your Cybersecurity Partner Since 2002, AKAOMA has been supporting businesses, institutions, and organizations in facing ever-growing cyber threats.” Source: RevenueBase Database · checked Sep 19, 2026
17	Exatrack	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Au cours de ces dernières années le nombre d’attaques informatiques a connu une très forte augmentation, ciblant aussi bien les gouvernements que les sociétés privées.” Source: RevenueBase Database · checked Sep 19, 2026
18	Cyberevive	Partial evidence	Lille, FranceHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “We detect vulnerabilities, identify the most important assets, prioritize the most serious breaches, decide what actions to take, mitigate and control compliances and protect…” Source: RevenueBase Database · checked Sep 19, 2026
19	Click Secure	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “ClickSecure - Partenaire en Cybersécurité pour les PME Nous sommes fiers d'être votre partenaire dévoué en cybersécurité, mettant en œuvre des solutions innovantes pour protéger…” Source: RevenueBase Database · checked Sep 19, 2026
20	Cyberxl	Indirect evidence	La Rochelle, FranceHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “CyberXL aide les entreprises à se prémunir des cyberattaques.” Source: RevenueBase Database · checked Sep 19, 2026
21	Exohsi	Indirect evidence	Grenoble, FranceHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Le dragon qui veille sur votre trésor numérique Dans un monde où les données sont des joyaux précieux, EXOHSI se dresse contre l’ennemi, ce dernier, prêt à tout pour vous voler…” Source: RevenueBase Database · checked Sep 19, 2026
22	Cylresc	Indirect evidence	Fleurieu-sur-saône, FranceHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Cylresc est une société spécialisée dans la Cybersécurité.” Source: RevenueBase Database · checked Sep 19, 2026
23	Port Cyberdefense	Indirect evidence	Strasbourg, FranceHQ checked Sep 19, 2026	11-50	1 contacts →
	Indirect evidence “Port Cyber Defense is the company behind GHOST RED, the autonomous AI adversary platform built for enterprise security teams across the EU and Gulf region.” Source: RevenueBase Database · checked Sep 19, 2026
24	rootsec.eu	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Protecting your data from the most severe threats begins with a disciplined approach to securing your entire information technology infrastructure.” Source: RevenueBase Database · checked Sep 19, 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: breach detection services. 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 breach detection services.
Partial evidence: Its own public description names part of breach detection services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name breach detection services. 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 24 of 58 breach detection services based in France

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Breach detection services based in France at a glance

As of Sep 19, 2026

41.4%Verified-email coverage

45.9Average contacts per company

1-10Median size (employees)

39.7%Largest-city concentration · Paris

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 58 companies.

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 breach detection services, 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 “breach detection services”. 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 breach detection services), 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 breach detection services, 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, 1,101 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 19, 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

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 breach detection services, 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 breach detection services are there based in France?

RevenueBase identified 58 breach detection services 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?

I-Tracing, headquartered in Courbevoie, tops this list with the largest team on record.

Which city has the most breach detection services?

Paris leads with 23 headquartered companies, followed by Rennes (2) and Toulouse (2).

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 1,101 verified decision-maker contacts tracked across these 58 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 19, 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.