Company lists · Data refreshed September 2026

Top 25 Cybersecurity consultancies based in France

Name: Cybersecurity consultancies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 2,733 companies tracked

RevenueBase identified 2,733 cybersecurity consultancies headquartered in France as of September 2026 and tracks 77,760 professional contacts across them, including 16,400 with verified work emails and 2,474 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

2,733Companies

77,760Contacts tracked

16,400Verified emails

2,474Mobile numbers

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The 25 largest cybersecurity consultancies based in France

Ranked by team size

Top 25 of 2,733 cybersecurity consultancies based in France, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity consultancies: 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 Business	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	10001+	25,395 contacts →
	Indirect evidence “In a world that never stands still, possibility is everywhere.” Source: RevenueBase Database · checked Sep 24, 2026
2	Orange Cyberdefense	Partial evidence	Nanterre, FranceHQ checked Sep 24, 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 24, 2026
3	Airbus Protect	Partial evidence	Blagnac, FranceHQ checked Sep 24, 2026	1,001-5,000	1,431 contacts →
	Partial evidence “Airbus Protect is an Airbus subsidiary bringing together expertise in cybersecurity, safety and sustainability-related services.” Source: RevenueBase Database · checked Sep 24, 2026
4	SCC France	Indirect evidence	Nanterre, FranceHQ checked Sep 24, 2026	1,001-5,000	1,300 contacts →
	Indirect evidence “SCC France unleashes the potential of IT for global businesses, as one of Europe’s largest independent IT groups.” Source: RevenueBase Database · checked Sep 24, 2026
5	Onet Sécurité	Indirect evidence	Marseille, FranceHQ checked Sep 24, 2026	10001+	1,007 contacts →
	Indirect evidence “La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Source: RevenueBase Database · checked Sep 24, 2026
6	FIME	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	501-1,000	848 contacts →
	Indirect evidence “We enable our clients to create and successfully launch secure solutions across payments, smart mobility, and digital identity.” Source: RevenueBase Database · checked Sep 24, 2026
7	Acensi	Indirect evidence	Courbevoie, FranceHQ checked Sep 24, 2026	1,001-5,000	844 contacts →
	Indirect evidence “You will be part of ACENSI network: 1650 co-workers involved in IS transformation projects at our clients through our multisectoral expertise.” Source: RevenueBase Database · checked Sep 24, 2026
8	SQUAD	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	501-1,000	803 contacts →
	Indirect 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 24, 2026
9	I-Tracing	Partial evidence	Courbevoie, FranceHQ checked Sep 24, 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 24, 2026
10	Exakis Nelite	Indirect evidence	Bidart, FranceHQ checked Sep 24, 2026	501-1,000	621 contacts →
	Indirect evidence “Exakis Nelite devient Magellan!” Source: RevenueBase Database · checked Sep 24, 2026
11	Byblos Group	Indirect evidence	Lissieu, FranceHQ checked Sep 24, 2026	1,001-5,000	538 contacts →
	Indirect evidence “Byblos Group est un groupe indépendant spécialisé dans la protection des personnes, des biens et des données, avec une approche sur mesure, fondée sur l’excellence opérationnelle…” Source: RevenueBase Database · checked Sep 24, 2026
12	own.security	Partial evidence	Paris, FranceHQ checked Sep 24, 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 24, 2026
13	Eryma Security Systems	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 24, 2026	201-500	457 contacts →
	Indirect evidence “En tant qu’intégrateur ouvert de solutions de sûreté électroniques, nous vous accompagnons dans la protection de vos biens et personnes.” Source: RevenueBase Database · checked Sep 24, 2026
14	LINKT	Indirect evidence	Puteaux, FranceHQ checked Sep 24, 2026	201-500	433 contacts →
	Indirect evidence “Opérateur de services managés, expert en télécoms et cybersécurité, Linkt accompagne les ETI, les grands comptes et les collectivités dans la performance et la sécurisation de…” Source: RevenueBase Database · checked Sep 24, 2026
15	Metsys	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 24, 2026	501-1,000	397 contacts →
	Indirect evidence “Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Source: RevenueBase Database · checked Sep 24, 2026
16	Neverhack	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	1,001-5,000	382 contacts →
	Partial evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 24, 2026
17	Synetis	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	201-500	359 contacts →
	Indirect evidence “Founded in 2010, Synetis is the leading independent French consultancy firm specialising in information systems security (ISS).” Source: RevenueBase Database · checked Sep 24, 2026
18	Fichet Group	Indirect evidence	Vélizy-villacoublay, FranceHQ checked Sep 24, 2026	501-1,000	338 contacts →
	Indirect evidence “Mastering your own security empowers you to create a safer world for everyone.” Source: RevenueBase Database · checked Sep 24, 2026
19	Devoteam Cyber Trust	Partial evidence	Levallois-perret, FranceHQ checked Sep 24, 2026	10001+	338 contacts →
	Partial evidence “Devoteam Cyber Trust is the cybersecurity specialist arm of the Devoteam Group.” Source: RevenueBase Database · checked Sep 24, 2026
20	Foliateam	Indirect evidence	Saint-maur Des Fossés, FranceHQ checked Sep 24, 2026	201-500	305 contacts →
	Indirect evidence “Foliateam, MSP IT et Cybersécurité \| Opérateur Cloud en Téléphonie et réseaux, pour les entreprises et les organisations publiques, met à disposition de ses clients - des réseaux…” Source: RevenueBase Database · checked Sep 24, 2026
21	Almond	Indirect evidence	Sèvres, FranceHQ checked Sep 24, 2026	201-500	303 contacts →
	Indirect evidence “Née de la fusion des sociétés NetXP et Provadys, Almond se positionne comme un acteur majeur français indépendant de l’audit et du conseil dans les domaines de la Cybersécurité…” Source: RevenueBase Database · checked Sep 24, 2026
22	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 24, 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 24, 2026
23	Intrinsec	Indirect evidence	Courbevoie, FranceHQ checked Sep 24, 2026	201-500	245 contacts →
	Indirect evidence “Intrinsec is focused on Information Security.” Source: RevenueBase Database · checked Sep 24, 2026
24	Formind	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 24, 2026	201-500	244 contacts →
	Indirect evidence “Formind est un leader français indépendant, expert en cybersécurité.” Source: RevenueBase Database · checked Sep 24, 2026
25	Airbus Defence And Space Cyber	Indirect evidence	Elancourt, FranceHQ checked Sep 24, 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 24, 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: cybersecurity consultancies. 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 cybersecurity consultancies.
Partial evidence: Its own public description names part of cybersecurity consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity consultancies. 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 2,733 cybersecurity consultancies based in France

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Cybersecurity consultancies based in France at a glance

As of Sep 24, 2026

21.1%Verified-email coverage

3.2%Mobile-number coverage

28.5Average contacts per company

1-10Median size (employees)

26.0%Largest-city concentration · Paris

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

1,839

11-50

643

51-200

156

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

12,4260–30

3,67931–60

21661–90

890–180

71180+

Company record updated

Median 77.0d

00–30

19,93731–60

36,65061–90

17,32290–180

3,851180+

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 consultancies, 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 “cybersecurity consultancies”. 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 cybersecurity consultancies), 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 cybersecurity consultancies, 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, 16,400 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 24, 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.

Cybersecurity consultancies by metro

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 cybersecurity consultancies, 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 cybersecurity consultancies are there based in France?

RevenueBase identified 2,733 cybersecurity consultancies 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 Business, headquartered in Cedex, tops this list with the largest team on record.

Which city has the most cybersecurity consultancies?

Paris leads with 710 headquartered companies, followed by Lyon (101) and Toulouse (48).

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 16,400 verified decision-maker contacts tracked across these 2,733 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 24, 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.