Company lists · Data refreshed September 2026

Top 25 Cybersecurity transformation services based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,118 companies tracked

RevenueBase identified 1,118 cybersecurity transformation services headquartered in France as of September 2026 and tracks 145,643 professional contacts across them, including 30,284 with verified work emails. Paris is the largest hub.

This list covers cybersecurity transformation 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 28, 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 28, 2026 86% judged on-target in blind review

1,118Companies

145,643Contacts tracked

30,284Verified emails

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The 25 largest cybersecurity transformation services based in France

Ranked by team size

Top 25 of 1,118 cybersecurity transformation services based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity transformation 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	ATOS	Partial evidence	95877 Bezons, FranceHQ checked Sep 28, 2026	10001+	82,557 contacts →
	Partial evidence “Atos Group is a global leader in digital transformation with c.” Source: RevenueBase Database · checked Sep 28, 2026
2	Orange Business	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	10001+	25,395 contacts →
	Indirect evidence “In a world that never stands still, possibility is everywhere.” Source: RevenueBase Database · checked Sep 28, 2026
3	Orange Cyberdefense	Partial evidence	Nanterre, FranceHQ checked Sep 28, 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 28, 2026
4	Axians	Indirect evidence	Nanterre Cedex, FranceHQ checked Sep 28, 2026	10001+	3,337 contacts →
	Indirect evidence “Axians is the ICT brand of VINCI Energies.” Source: RevenueBase Database · checked Sep 28, 2026
5	SCC France	Indirect evidence	Nanterre, FranceHQ checked Sep 28, 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 28, 2026
6	NIJI	Partial evidence	Issy-les-moulineaux, FranceHQ checked Sep 28, 2026	1,001-5,000	1,256 contacts →
	Partial evidence “Créée en septembre 2001, Niji est une société de conseil, de design et de mise en œuvre technologique, entièrement dédiée à la transformation numérique des entreprises et des…” Source: RevenueBase Database · checked Sep 28, 2026
7	Neosoft	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1,001-5,000	1,240 contacts →
	Partial evidence “Néosoft est un groupe indépendant de conseil en transformation digitale de 1800 collaborateurs réunis en communautés d’experts : Conseil & Agilité, Cybersécurité, Data, DevOps…” Source: RevenueBase Database · checked Sep 28, 2026
8	FIME	Indirect evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
9	Acensi	Partial evidence	Courbevoie, FranceHQ checked Sep 28, 2026	1,001-5,000	844 contacts →
	Partial 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 28, 2026
10	SQUAD	Indirect evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
11	I-Tracing	Partial evidence	Courbevoie, FranceHQ checked Sep 28, 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 28, 2026
12	Klanik	Indirect evidence	Marseille, FranceHQ checked Sep 28, 2026	501-1,000	585 contacts →
	Indirect evidence “KLANIK is a consulting company specialized in IT Engineering which accompanies its partners in their digital and technological projects.” Source: RevenueBase Database · checked Sep 28, 2026
13	Tenexa	Indirect evidence	Roissy Cdg Cedex, FranceHQ checked Sep 28, 2026	1,001-5,000	551 contacts →
	Indirect evidence “Fondée en 1985, Tenexa est une Entreprise de services du numérique (ESN), Le groupe Tenexa est composé de deux filiales (Infodis IT, & Prolival) et se positionne résolument vers…” Source: RevenueBase Database · checked Sep 28, 2026
14	own.security	Partial evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
15	LINKT	Indirect evidence	Puteaux, FranceHQ checked Sep 28, 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 28, 2026
16	Metsys	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 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 28, 2026
17	Neverhack	Partial evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
18	Synetis	Indirect evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
19	ITS Group S.A	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 2026	1,001-5,000	342 contacts →
	Partial evidence “For over 20 years, ITS Group has supported companies in their digital transformation projects thanks to the strength of its specialized areas of expertise.” Source: RevenueBase Database · checked Sep 28, 2026
20	Devoteam Cyber Trust	Partial evidence	Levallois-perret, FranceHQ checked Sep 28, 2026	10001+	338 contacts →
	Partial evidence “Devoteam Cyber Trust is the cybersecurity specialist arm of the Devoteam Group.” Source: RevenueBase Database · checked Sep 28, 2026
21	LÙKLA	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	501-1,000	331 contacts →
	Indirect evidence “Together, aiming higher and going further to unlock your potential.” Source: RevenueBase Database · checked Sep 28, 2026
22	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
23	Apixit	Indirect evidence	Les Ulis, FranceHQ checked Sep 28, 2026	201-500	266 contacts →
	Indirect evidence “APIXIT est une société de services numériques spécialisée en Cybersécurité, Infrastructures Numériques, Cloud et Modern Workplace.” Source: RevenueBase Database · checked Sep 28, 2026
24	Airbus Defence And Space Cyber	Indirect evidence	Elancourt, FranceHQ checked Sep 28, 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 28, 2026
25	Groupe SYD	Indirect evidence	Saint Herblain, FranceHQ checked Sep 28, 2026	201-500	198 contacts →
	Indirect evidence “Chez SYD, nous accompagnons depuis plus de 25 ans les entreprises : TPE, PME et grands comptes, tous secteurs confondus dans leur accélération digitale.” Source: RevenueBase Database · checked Sep 28, 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 transformation 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 cybersecurity transformation services.
Partial evidence: Its own public description names part of cybersecurity transformation services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity transformation 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 25 of 1,118 cybersecurity transformation services based in France

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Cybersecurity transformation services based in France at a glance

As of Sep 28, 2026

20.8%Verified-email coverage

130.3Average contacts per company

1-10Median size (employees)

27.5%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

679

11-50

285

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 1,118 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 cybersecurity transformation 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 “cybersecurity transformation 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 cybersecurity transformation 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 cybersecurity transformation 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, 30,284 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 28, 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 transformation services 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 transformation 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 cybersecurity transformation services are there based in France?

RevenueBase identified 1,118 cybersecurity transformation 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?

ATOS, headquartered in Bezons, tops this list with the largest team on record.

Which city has the most cybersecurity transformation services?

Paris leads with 308 headquartered companies, followed by Lyon (32) and Boulogne-Billancourt (23).

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 30,284 verified decision-maker contacts tracked across these 1,118 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 28, 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.