Company lists · Data refreshed September 2026

Top 25 Military cybersecurity companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 139 companies tracked

RevenueBase identified 139 military cybersecurity companies headquartered in France as of September 2026 and tracks 7,048 professional contacts across them, including 3,034 with verified work emails and 114 with mobile numbers. Paris is the largest hub.

This list covers military cybersecurity 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 5, 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 5, 2026 86% judged on-target in blind review

139Companies

7,048Contacts tracked

3,034Verified emails

114Mobile numbers

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The 25 largest military cybersecurity companies based in France

Ranked by team size

Top 25 of 139 military cybersecurity companies based in France, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to military cybersecurity 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	Orange Cyberdefense	Partial evidence	Nanterre, FranceHQ checked Sep 5, 2026	1,001-5,000	3,673 contacts →
	Partial evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 5, 2026
2	own.security	Partial evidence	Paris, FranceHQ checked Sep 5, 2026	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 5, 2026
3	Airbus Defence And Space Cyber	Indirect evidence	Elancourt, FranceHQ checked Sep 5, 2026	501-1,000	225 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 5, 2026
4	Gatewatcher	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	138 contacts →
	Indirect 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 5, 2026
5	Quarkslab	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	95 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 5, 2026
6	CS In Cybersecurity	Indirect evidence	Le Plessis-robinson, FranceHQ checked Sep 5, 2026	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 5, 2026
7	Sysdream	Indirect evidence	Levallois-perret, FranceHQ checked Sep 5, 2026	51-200	52 contacts →
	Indirect evidence “À propos de SYSDREAM : Fondée il y a plus de 20 ans, Sysdream, filiale Cybersécurité du Groupe Hub One, propose aux comptes publics et privés une offre globale de solutions…” Source: RevenueBase Database · checked Sep 5, 2026
8	Dcit Conseil	Indirect evidence	Sene, FranceHQ checked Sep 5, 2026	n/a	47 contacts →
	Indirect evidence “DCIT Conseil, société de services de consultation spécialisée dans la cybersécurité et les technologies de l'information.” Source: RevenueBase Database · checked Sep 5, 2026
9	ERIUM	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	37 contacts →
	Indirect evidence “To be confident in your cyber defences, every person and technology must be confronted by reality.” Source: RevenueBase Database · checked Sep 5, 2026
10	Randorisec	Partial evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	32 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 5, 2026
11	Sec-It	Indirect evidence	Levallois-perret, FranceHQ checked Sep 5, 2026	11-50	27 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 5, 2026
12	Five Nines	Indirect evidence	Paris, FranceHQ checked Sep 5, 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 5, 2026
13	Becycure	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	23 contacts →
	Indirect evidence “Nous sommes une entreprise résolument orientée vers les services liés au domaine de la Cybersécurité.” Source: RevenueBase Database · checked Sep 5, 2026
14	Seclab	Indirect evidence	Pérols, FranceHQ checked Sep 5, 2026	11-50	20 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 5, 2026
15	Ého.Link	Indirect evidence	Marseille, FranceHQ checked Sep 5, 2026	11-50	16 contacts →
	Indirect evidence “ÉHO.LINK est une équipe de 25 personnes ancrée à Marseille.” Source: RevenueBase Database · checked Sep 5, 2026
16	Diateam	Indirect evidence	Brest, FranceHQ checked Sep 5, 2026	11-50	16 contacts →
	Indirect evidence “Founded in 2002, on the French MoD needs, DIATEAM is a R&D company specializing in computer security.” Source: RevenueBase Database · checked Sep 5, 2026
17	Nuances Technologies	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	16 contacts →
	Indirect evidence “Basée à Paris, Nuances Technologies est une société française qui développe des solutions d’avant-garde dans le domaine de la sécurité et du contrôle des communications sans fil…” Source: RevenueBase Database · checked Sep 5, 2026
18	Intuity	Indirect evidence	Paris, FranceHQ checked Sep 5, 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 5, 2026
19	u.neat	Indirect evidence	Paris-lyon-aix/marseille, FranceHQ checked Sep 5, 2026	11-50	15 contacts →
	Indirect evidence “Nous veillons sur la sécurité de votre Système d’Information.” Source: RevenueBase Database · checked Sep 5, 2026
20	DND Agency	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	13 contacts →
	Indirect evidence “Are we legion?” Source: RevenueBase Database · checked Sep 5, 2026
21	AKYL	Indirect evidence	Pantin, FranceHQ checked Sep 5, 2026	1-10	11 contacts →
	Indirect evidence “LA CYBERSÉCURITÉ, VERSION AKYL Une approche aussi pragmatique que passionnée.” Source: RevenueBase Database · checked Sep 5, 2026
22	Cyber-Ssi	Indirect evidence	Paris, FranceHQ checked Sep 5, 2026	11-50	11 contacts →
	Indirect evidence “Expert en sécurité et défense des systèmes numériques, nous accompagnons les entreprises et les organismes publics dans la protection de leurs infrastructures et de leurs produits…” Source: RevenueBase Database · checked Sep 5, 2026
23	Highjack Offensive Cybersecurity	Indirect evidence	Paris, FranceHQ checked Sep 5, 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 5, 2026
24	Hifield	Indirect evidence	Sèvres, FranceHQ checked Sep 5, 2026	11-50	9 contacts →
	Indirect evidence “Né de la fusion des sociétés NetXP, LiveXP, Provadys et MAJJ, Hifield est la holding des sociétés Almond, Amossys et Board of Cyber.” Source: RevenueBase Database · checked Sep 5, 2026
25	SIKUR	Indirect evidence	Valbonne, FranceHQ checked Sep 5, 2026	11-50	9 contacts →
	Indirect evidence “More than a technological solution, we are a strategic decision for organizations.” Source: RevenueBase Database · checked Sep 5, 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: military cybersecurity 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 military cybersecurity companies.
Partial evidence: Its own public description names part of military cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name military cybersecurity 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 139 military cybersecurity companies based in France

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Military cybersecurity companies based in France at a glance

As of Sep 5, 2026

43.0%Verified-email coverage

1.6%Mobile-number coverage

50.7Average contacts per company

1-10Median size (employees)

31.7%Largest-city concentration · Paris

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

2,8740–30

14631–60

161–90

090–180

13180+

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 military cybersecurity 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 “military cybersecurity 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 military cybersecurity 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 military 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 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, 3,034 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 5, 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.

Military cybersecurity companies by metro

Military cybersecurity companies in Paris44

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 military cybersecurity 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 military cybersecurity companies are there based in France?

RevenueBase identified 139 military cybersecurity 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?

Orange Cyberdefense, headquartered in Paris, tops this list with the largest team on record.

Which city has the most military cybersecurity companies?

Paris leads with 44 headquartered companies, followed by Toulouse (4) 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 3,034 verified decision-maker contacts tracked across these 139 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 5, 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.