Company lists · Data refreshed September 2026
Top 25 Managed security service providers based in France
RevenueBase identified 720 managed security service providers headquartered in France as of September 2026 and tracks 13,549 professional contacts across them, including 5,562 with verified work emails and 301 with mobile numbers. Paris is the largest hub.
This list covers managed security service providers 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, how directly it supports the match, 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 SmartSearch, 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.
The 25 largest managed security service providers based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,673 | ||||
“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 639 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 506 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 382 | ||||
“NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 338 | ||||
“Devoteam Cyber Trust is the cybersecurity specialist arm of the Devoteam Group.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 245 | ||||
“Intrinsec is focused on Information Security.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | TehtrisIndirect evidence | 185 | |||
“TEHTRIS is the software editor of the TEHTRIS XDR Platform, the world leader in automatic, real-time, non-human neutralization of cyber attacks.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 160 | ||||
“CybelAngel combines artificial intelligence and human expertise to help companies in all industries to detect, analyze and effectively counter cyber threats.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 144 | ||||
“Créée en Juin 2002, Services Network Security est spécialisée dans la sécurisation des passerelles internet et dans les interconnexions VPN.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 139 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 138 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | SekoiaIndirect evidence | 134 | |||
“Sekoia is the European agentic cybersecurity company building the Cyber Operations Platform for the AI era.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 126 | ||||
“Since January 2007, ITrust has been offering cybersecurity solutions and expertise in 6 different countries on the European market.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 121 | ||||
“Créé, il y a 40 ans par les principaux établissements financiers de la région Midi-Pyrénées, nous sommes initialement spécialisé dans la télésurveillance bancaire.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 117 | ||||
“EvaBssi is an international consulting firm specialized in cybersecurity and IS performance.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 105 | ||||
“At Egerie, we believe cybersecurity shouldn't be a constraint, it should be a true driver of sustainable performance.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 95 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 94 | ||||
“Exclusive Networks (Euronext Paris: EXN) est un spécialiste mondial de la cybersécurité qui propose à ses partenaires et à ses clients finaux une unique combinaison de services et…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 75 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 73 | ||||
“Aduneo vous accompagne à chaque étape pour protéger vos identités, sécuriser vos données et simplifier votre quotidien.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 72 | ||||
“Depuis plus de 30 ans, nous sommes là pour veiller à la protection du progrès et de l'innovation.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 67 | ||||
“EXEO, founded in 2012, is a multi-specialist Managed Services Cloud Provider.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 59 | ||||
“LA SÉCURITÉ CRÉATRICE DE VALEUR POUR LES CLIENTS Login Sécurité accompagne les DSI dans la définition et la mise en œuvre de leur stratégie de Confiance Numérique.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 56 | ||||
“Cyberlift, l'excellence et l'engagement, au service de votre cybersécurité.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 52 | ||||
“Qui sommes-nous?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 720 managed security service providers based in France
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Managed security service providers based in France at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 managed security service providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in France whose own description of what they do matches “managed security service providers”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among managed security service providers, 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 an evidence 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, 5,562 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.
Managed security service providers by metro
- Managed security service providers in Paris209
Frequently asked
How many managed security service providers are there based in France?
RevenueBase identified 720 managed security service providers 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 managed security service providers?
Paris leads with 209 headquartered companies, followed by Lyon (18) and Lille (13).
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 5,562 verified decision-maker contacts tracked across these 720 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 SmartSearch, 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.
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