Company lists · Data refreshed September 2026

Top 25 Cyber consulting companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,257 companies tracked

RevenueBase identified 1,257 cyber consulting companies headquartered in France as of September 2026 and tracks 23,478 professional contacts across them, including 7,130 with verified work emails. Paris is the largest hub.

This list covers cyber consulting 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 21, 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 21, 2026 86% judged on-target in blind review

1,257Companies

23,478Contacts tracked

7,130Verified emails

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The 25 largest cyber consulting companies based in France

Ranked by team size

Top 25 of 1,257 cyber consulting companies based in France, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cyber consulting 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	Indirect evidence	Nanterre, FranceHQ checked Sep 21, 2026	1,001-5,000	3,673 contacts →
	Indirect evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 21, 2026
2	Airbus Protect	Indirect evidence	Blagnac, FranceHQ checked Sep 21, 2026	1,001-5,000	1,431 contacts →
	Indirect evidence “Airbus Protect is an Airbus subsidiary bringing together expertise in cybersecurity, safety and sustainability-related services.” Source: RevenueBase Database · checked Sep 21, 2026
3	SQUAD	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	501-1,000	803 contacts →
	Partial evidence “The growing threat of cyber risks, the expansion of cloud computing and the emergence of the DevOps movement are reshaping IT practices, enlighting the relevance of our vision for…” Source: RevenueBase Database · checked Sep 21, 2026
4	I-Tracing	Partial evidence	Courbevoie, FranceHQ checked Sep 21, 2026	1,001-5,000	639 contacts →
	Partial 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 21, 2026
5	own.security	Indirect evidence	Paris, FranceHQ checked Sep 21, 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 21, 2026
6	Neverhack	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1,001-5,000	382 contacts →
	Indirect evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 21, 2026
7	Devoteam Cyber Trust	Partial evidence	Levallois-perret, FranceHQ checked Sep 21, 2026	10001+	338 contacts →
	Partial evidence “Devoteam Cyber Trust is the cybersecurity specialist arm of the Devoteam Group.” Source: RevenueBase Database · checked Sep 21, 2026
8	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	201-500	279 contacts →
	Indirect evidence “Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Source: RevenueBase Database · checked Sep 21, 2026
9	Norgay	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	201-500	167 contacts →
	Indirect evidence “NORGAY IT services, la proximité au cœur de votre transformation digitale NORGAY IT Services est une entreprise de services numériques (ESN), implantée sur Brest, Nantes, Paris…” Source: RevenueBase Database · checked Sep 21, 2026
10	ADNOV	Indirect evidence	Venelles, FranceHQ checked Sep 21, 2026	201-500	139 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
11	Itrust	Indirect evidence	Toulouse, FranceHQ checked Sep 21, 2026	51-200	126 contacts →
	Indirect 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 21, 2026
12	Evabssi	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	201-500	117 contacts →
	Partial evidence “EvaBssi is an international consulting firm specialized in cybersecurity and IS performance.” Source: RevenueBase Database · checked Sep 21, 2026
13	XMCO	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	51-200	111 contacts →
	Partial evidence “Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).” Source: RevenueBase Database · checked Sep 21, 2026
14	Egerie	Indirect evidence	Toulon, FranceHQ checked Sep 21, 2026	51-200	105 contacts →
	Indirect evidence “At Egerie, we believe cybersecurity shouldn't be a constraint, it should be a true driver of sustainable performance.” Source: RevenueBase Database · checked Sep 21, 2026
15	Aramys	Indirect evidence	Lens, FranceHQ checked Sep 21, 2026	51-200	96 contacts →
	Indirect evidence “ARAMYS est une société de Conseil et d'Expertise intervenant sur l'ensemble des problématiques des PME/PMI et Grands Comptes liées aux Systèmes d'Information et de Communication…” Source: RevenueBase Database · checked Sep 21, 2026
16	Sekera	Indirect evidence	Saint-quentin-en-yvelines, FranceHQ checked Sep 21, 2026	51-200	88 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
17	Lutessa	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	51-200	83 contacts →
	Indirect evidence “Allez, on se présente!” Source: RevenueBase Database · checked Sep 21, 2026
18	Isitix	Indirect evidence	FranceHQ checked Sep 21, 2026	n/a	83 contacts →
	Indirect evidence “Depuis 20 ans, Isitix accompagne vos projets informatiques et numériques.” Source: RevenueBase Database · checked Sep 21, 2026
19	CS In Cybersecurity	Indirect evidence	Le Plessis-robinson, FranceHQ checked Sep 21, 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 21, 2026
20	Aduneo	Indirect evidence	Malakoff, FranceHQ checked Sep 21, 2026	51-200	73 contacts →
	Indirect evidence “Aduneo vous accompagne à chaque étape pour protéger vos identités, sécuriser vos données et simplifier votre quotidien.” Source: RevenueBase Database · checked Sep 21, 2026
21	Celios	Indirect evidence	Limoges, FranceHQ checked Sep 21, 2026	51-200	72 contacts →
	Indirect evidence “Celios : l'expertise globale IT avec ses services intégrés en infogérance, cybersécurité, innovation technologique et gestion de talents spécialisés.” Source: RevenueBase Database · checked Sep 21, 2026
22	AMD Blue	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	51-200	68 contacts →
	Indirect evidence “La société AMD BLUE est née de l’intention de son président, Michel Delouya, de fonder une ESN (anciennement SSII) dans laquelle la qualité et l’accompagnement assidus du service…” Source: RevenueBase Database · checked Sep 21, 2026
23	Antares IT	Indirect evidence	Levallois Perret, FranceHQ checked Sep 21, 2026	201-500	66 contacts →
	Indirect evidence “Depuis plus de 20 ans, ANTARES, société de conseils et de services numériques, propose à ses clients des prestations de développement informatique, de conseil et accompagnement…” Source: RevenueBase Database · checked Sep 21, 2026
24	Ody-C	Indirect evidence	Rennes, FranceHQ checked Sep 21, 2026	51-200	62 contacts →
	Indirect evidence “ODY-C, certifié partenaire TITANIUM de Bouygues Telecom Entreprises depuis près de 15 ans, accompagne les TPE, PME, ETI et Grands Comptes dans leur transformation digitale et le…” Source: RevenueBase Database · checked Sep 21, 2026
25	FOKUS	Indirect evidence	Lyon, FranceHQ checked Sep 21, 2026	51-200	61 contacts →
	Indirect evidence “FOKUS, où l’Humain et la Technologie se rencontrent.” Source: RevenueBase Database · checked Sep 21, 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: cyber consulting 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 cyber consulting companies.
Partial evidence: Its own public description names part of cyber consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cyber consulting 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 1,257 cyber consulting companies based in France

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Cyber consulting companies based in France at a glance

As of Sep 21, 2026

30.4%Verified-email coverage

18.7Average contacts per company

1-10Median size (employees)

27.6%Largest-city concentration · Paris

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

889

11-50

281

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 1,257 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 cyber consulting 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 “cyber consulting 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 cyber consulting 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 cyber consulting 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, 7,130 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 21, 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.

Cyber consulting companies by metro

Cyber consulting companies in Paris347
Cyber consulting companies in Lyon39

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 cyber consulting 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 cyber consulting companies are there based in France?

RevenueBase identified 1,257 cyber consulting 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 cyber consulting companies?

Paris leads with 347 headquartered companies, followed by Lyon (39) and Toulouse (21).

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 7,130 verified decision-maker contacts tracked across these 1,257 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 21, 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.