Company lists · Data refreshed September 2026

Top 25 Plant floor cybersecurity companies based in France

RevenueBase identified 110 plant floor cybersecurity companies headquartered in France as of September 2026 and tracks 3,763 professional contacts across them, including 1,242 with verified work emails. Paris is the largest hub.

This list covers plant floor cybersecurity 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 29, 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 29, 2026 86% judged on-target in blind review
110Companies
3,763Contacts tracked
1,242Verified emails
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The 25 largest plant floor cybersecurity companies based in France

Ranked by team size
Top 25 of 110 plant floor cybersecurity companies based in France, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to plant floor cybersecurity 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceCourbevoie, FranceHQ checked Sep 29, 20261,001-5,000639 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 29, 2026
2Partial evidenceParis, FranceHQ checked Sep 29, 202651-200506 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 29, 2026
3Indirect evidenceCourbevoie, FranceHQ checked Sep 29, 20265,001-10,000393 contacts →

Indirect evidence

“Equans Digital connects OT, IT and data to make your infrastructures truly controllable.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceParis, FranceHQ checked Sep 29, 202651-200138 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceRennes, FranceHQ checked Sep 29, 202651-200134 contacts →

Partial evidence

“Sekoia is the European agentic cybersecurity company building the Cyber Operations Platform for the AI era.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceToulouse, FranceHQ checked Sep 29, 202651-200126 contacts →

Partial 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 29, 2026
7Indirect evidenceLe Plessis-robinson, FranceHQ checked Sep 29, 202651-20075 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 29, 2026
8Partial evidencePessac, FranceHQ checked Sep 29, 202611-5048 contacts →

Partial evidence

“Expertise in cybersecurity testing takes years to build but can be lost in seconds.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceParis, FranceHQ checked Sep 29, 202611-5033 contacts →

Partial evidence

“ACG Cybersecurity est un cabinet d’Audit, de Conseil et de Gouvernance spécialisé en matière de Cybersécurité.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceParis, FranceHQ checked Sep 29, 202611-5032 contacts →

Partial evidence

“Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceBoulogne-billancourt, FranceHQ checked Sep 29, 202611-5028 contacts →

Indirect evidence

“Au sein du Groupe Trèfle (190 personnes), Trèfle Solution est une ESN dédiée aux métiers de l’infogérance, de la sécurité des SI et des systèmes industriels.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceLevallois-perret, FranceHQ checked Sep 29, 202611-5027 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5025 contacts →

Indirect evidence

“Five Nines est née en 2019 d’un constat simple, celui d’un manque crucial de compétences et d’expérience dans la sécurisation de la transformation digitale des entreprises.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidencePuteaux, FranceHQ checked Sep 29, 202611-5024 contacts →

Partial evidence

“Holiseum offers a holistic approach of cybersecurity by: • providing services across the whole cybersecurity service value chain: from governance, audits, solutions, remediation…”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5024 contacts →

Indirect evidence

“Seckiot est un éditeur de logiciels français, spécialisé dans la cybersécurité dédié aux systèmes industriels.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceToulouse, FranceHQ checked Sep 29, 202611-5023 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidencePérols, FranceHQ checked Sep 29, 202611-5020 contacts →

Indirect evidence

“As France's leading provider of cyber protection for critical systems, Seclab secures exchanges by simplifying interconnection architectures and eliminating the risks associated…”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceBry-sur-marne, FranceHQ checked Sep 29, 202611-5017 contacts →

Indirect evidence

“Network, Security and Cyber Security Company”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceMarseille, FranceHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“ÉHO.LINK est une équipe de 25 personnes ancrée à Marseille.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceBrest, FranceHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“Founded in 2002, on the French MoD needs, DIATEAM is a R&D company specializing in computer security.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceParis, FranceHQ checked Sep 29, 2026201-50015 contacts →

Indirect evidence

“Nomios est un intégrateur en cybersécurité depuis 2004, né à partir du constat que la sécurité dans les entreprises était un métier de spécialiste.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceLille, FranceHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“QUI NOUS SOMMES Allistic est un cabinet de conseil en cybersécurité spécialisé dans l'accompagnement des retailers, acteurs de la santé et industriels.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5013 contacts →

Indirect evidence

“SAYCURIT est une société d’intégration spécialisée dans le domaine de la sécurité.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceAuppegard, FranceHQ checked Sep 29, 20261-1013 contacts →

Indirect evidence

“Automatisme, Informatique industrielle et Cyber Sécurité Bénéficiant d'une expérience de 15 années, BLAISE Industries a développé un savoir-faire dans les domaines de…”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5013 contacts →

Indirect evidence

“Are we legion?”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 110 plant floor cybersecurity companies based in France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,242 reachable decision-makers.

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Plant floor cybersecurity companies based in France at a glance

As of Sep 29, 2026
33.0%Verified-email coverage
34.2Average contacts per company
11-50Median size (employees)
30.9%Largest-city concentration · Paris
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
39
51-200
10
201-500
3
1,001-5,000
2
5,001-10,000
1
10001+
1

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 110 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 plant floor cybersecurity 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 “plant floor cybersecurity 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 plant floor cybersecurity 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 plant floor cybersecurity 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, 1,242 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 29, 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.

Plant floor cybersecurity companies 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 plant floor cybersecurity 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 plant floor cybersecurity companies are there based in France?

RevenueBase identified 110 plant floor cybersecurity 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 plant floor cybersecurity companies?

Paris leads with 34 headquartered companies, followed by Lyon (5) and Toulouse (5).

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 1,242 verified decision-maker contacts tracked across these 110 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 29, 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.