Company lists · Data refreshed September 2026
Top 16 Utility grid cybersecurity companies based in France
RevenueBase identified 46 utility grid cybersecurity companies headquartered in France as of September 2026 and tracks 5,025 professional contacts across them, including 2,306 with verified work emails. Paris is the largest hub.
This list covers utility grid 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.
The 16 largest utility grid cybersecurity companies based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,673 contacts → | ||||
Partial evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 138 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 126 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 35 contacts → | ||||
Indirect evidence “KYTL | Spécialiste de la protection des données et des environnements critiques; Fondée par des experts en cybersécurité cumulant plus de 15 ans d’expérience, KYTL accompagne les…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 31 contacts → | ||||
Indirect evidence “French start-up Artifeel's mission is to enable infrastructure operators to ensure the continuity and availability of their services (telecoms, energy, water, gas, rail networks…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 25 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 23 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 20 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 16 contacts → | ||||
Indirect evidence “ÉHO.LINK est une équipe de 25 personnes ancrée à Marseille.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 11 contacts → | ||||
Indirect evidence “Expert en sécurité et défense des systèmes numériques, nous accompagnons les entreprises et les organismes publics dans la protection de leurs infrastructures et de leurs produits…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 contacts → | ||||
Indirect evidence “Chez High Jack, nous sommes bien plus que des accompagnateurs de digitalisation, nous sommes des catalyseurs de la transformation numérique de votre structure!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 contacts → | ||||
Indirect evidence “For 10 years we have supported our clients in protecting their information assets: SIEM / SOC / SOAR; Threat Intelligence / UBA / IAM / API Security” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Partial evidence “Fortress Cybersecurity a vocation à couvrir l’ensemble des besoins en cybersécurité des entreprises qui disposent ou opèrent des installations industrielles.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3 contacts → | ||||
Indirect evidence “CitéConnect est une entreprise spécialisée dans la cybersécurité et l'informatique : suite collaborative, IT, cloud, IoT, IA!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 contacts → | ||||
Indirect evidence “Le dragon qui veille sur votre trésor numérique Dans un monde où les données sont des joyaux précieux, EXOHSI se dresse contre l’ennemi, ce dernier, prêt à tout pour vous voler…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1 contacts → | ||||
Partial evidence “Forequest Technologies is a Premier end-to-end Cybersecurity, Data Science, and Digitalization solutions provider.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: utility grid cybersecurity companies. 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 utility grid cybersecurity companies.
- Partial evidence
- Its own public description names part of utility grid cybersecurity companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name utility grid cybersecurity companies. 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 16 of 46 utility grid cybersecurity companies based in France
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Utility grid cybersecurity companies based in France at a glance
As of Sep 29, 2026Companies by employee count
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 46 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 utility grid 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 “utility grid 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 utility grid 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 utility grid 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, 2,306 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.
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 utility grid 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 utility grid cybersecurity companies are there based in France?
RevenueBase identified 46 utility grid 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?
Orange Cyberdefense, headquartered in Paris, tops this list with the largest team on record.
Which city has the most utility grid cybersecurity companies?
Paris leads with 17 headquartered companies, followed by Caen (2) and Issy-Les-Moulineaux (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 2,306 verified decision-maker contacts tracked across these 46 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.
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