Company lists · Data refreshed September 2026
Top 24 Operational technology security companies based in France
RevenueBase identified 63 operational technology security companies headquartered in France as of September 2026 and tracks 1,745 professional contacts across them, including 535 with verified work emails and 32 with mobile numbers. Paris is the largest hub.
This list covers operational technology security 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, 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 24 largest operational technology security companies based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 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. | |||||
| 3 | 27 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | HoliseumIndirect evidence | 24 | |||
“Holiseum offers a holistic approach of cybersecurity by: • providing services across the whole cybersecurity service value chain: from governance, audits, solutions, remediation…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 23 | ||||
“Nous sommes une entreprise résolument orientée vers les services liés au domaine de la Cybersécurité.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 23 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 20 | ||||
“As France's leading provider of cyber protection for critical systems, Seclab secures exchanges by simplifying interconnection architectures and eliminating the risks associated…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 13 | ||||
“Are we legion?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 | ||||
“L'évolution constante des usages numériques et des actes malveillants en découlant ont engendré un besoin toujours plus important en matière de protection des systèmes…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 11 | ||||
“Cybershen permet de mettre en place et de piloter une cybersécurité globale et sans efforts.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 | ||||
“HEXADUS est un bureau d'études en automatisme, informatique industrielle et cybersécurité OT.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 7 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 | ||||
“CyberSecura is a consulting and service company exclusively dedicated to cybersecurity.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 | ||||
“CyberLead est une société de conseil spécialisée en cybersécurité IT et OT, offrant une gamme complète de services, allant du conseil stratégique à l’intégration de solutions de…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Hozzeo CybersecurityIndirect evidence | 4 | |||
“Pure Player de la cybersécurité opérationnelle défensive et offensive, Hozzeo Cybersecurity, entité de l'écosystème Hozzeo Group, accompagne les entreprises et collectivités dans…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 | ||||
“Fortress Cybersecurity a vocation à couvrir l’ensemble des besoins en cybersécurité des entreprises qui disposent ou opèrent des installations industrielles.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 | ||||
“Expert en sûreté et sécurité depuis 1994, TIBERODE est spécialisée dans l'installation et la maintenance de solutions de sûreté : vidéoprotection, alarme anti-intrusion, contrôle…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 | ||||
“Depuis plus de 20 ans, notre ESN accompagne de grands groupes dans la sécurisation de leurs données et la gestion des risques liés à la cybersécurité.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 | ||||
“CitéConnect est une entreprise spécialisée dans la cybersécurité et l'informatique : suite collaborative, IT, cloud, IoT, IA!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 | ||||
“La cybersécurité est un enjeu majeur que chaque entreprise doit prendre au sérieux.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 | ||||
“Artecys est une entreprise spécialisée dans la sécurité informatique.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 | ||||
“NEXTWYN - Sécuriser les identités au cœur des systèmes critiques NEXTWYN est la division cybersécurité et digital du groupe WYNSYS, acteur indépendant spécialisé SAP depuis plus…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 | ||||
“Prestations et conseil en cybersécurité” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 | ||||
“Experts en cybersécurité : Sécuriser vos systèmes d’information est notre mission première.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 24 of 63 operational technology security companies based in France
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Operational technology security companies 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 operational technology security companies, 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 “operational technology security companies”. 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 operational technology security 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 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, 535 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.
Frequently asked
How many operational technology security companies are there based in France?
RevenueBase identified 63 operational technology security 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?
I-Tracing, headquartered in Courbevoie, tops this list with the largest team on record.
Which city has the most operational technology security companies?
Paris leads with 16 headquartered companies, followed by Lyon (4) and Caen (2).
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 535 verified decision-maker contacts tracked across these 63 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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