Company lists · Data refreshed September 2026

Top 25 Utility cybersecurity companies based in France

Name: Utility cybersecurity companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 190 companies tracked

RevenueBase identified 190 utility cybersecurity companies headquartered in France as of September 2026 and tracks 7,972 professional contacts across them, including 3,525 with verified work emails and 152 with mobile numbers. Paris is the largest hub.

This list covers utility 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 6, 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 6, 2026 86% judged on-target in blind review

190Companies

7,972Contacts tracked

3,525Verified emails

152Mobile numbers

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The 25 largest utility cybersecurity companies based in France

Ranked by team size

Top 25 of 190 utility cybersecurity companies based in France, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to utility 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Orange Cyberdefense	Partial evidence	Nanterre, FranceHQ checked Sep 6, 2026	1,001-5,000	3,673 contacts →
	“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: company website · checked Sep 6, 2026
2	I-Tracing	Partial evidence	Courbevoie, FranceHQ checked Sep 6, 2026	1,001-5,000	639 contacts →
	“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 6, 2026
3	own.security	Partial evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	506 contacts →
	“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 6, 2026
4	Cybelangel	Indirect evidence	Clichy, FranceHQ checked Sep 6, 2026	51-200	160 contacts →
	“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 6, 2026
5	Gatewatcher	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	138 contacts →
	“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 6, 2026
6	Sekoia	Partial evidence	Rennes, FranceHQ checked Sep 6, 2026	51-200	134 contacts →
	“Sekoia is the European agentic cybersecurity company building the Cyber Operations Platform for the AI era.” Source: company website · checked Sep 6, 2026
7	Itrust	Partial evidence	Toulouse, FranceHQ checked Sep 6, 2026	51-200	126 contacts →
	“Since January 2007, ITrust has been offering cybersecurity solutions and expertise in 6 different countries on the European market.” Source: company website · checked Sep 6, 2026
8	CS In Cybersecurity	Indirect evidence	Le Plessis-robinson, FranceHQ checked Sep 6, 2026	51-200	75 contacts →
	“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 6, 2026
9	Eset France	Indirect evidence	Marne-la-vallée, FranceHQ checked Sep 6, 2026	51-200	72 contacts →
	“Depuis plus de 30 ans, nous sommes là pour veiller à la protection du progrès et de l'innovation.” Source: company website · checked Sep 6, 2026
10	Dattak	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	49 contacts →
	“Dattak is an insurtech with a mission to protect businesses against cyberattacks.” Source: company website · checked Sep 6, 2026
11	Eshard	Partial evidence	Pessac, FranceHQ checked Sep 6, 2026	11-50	48 contacts →
	“Expertise in cybersecurity testing takes years to build but can be lost in seconds.” Source: company website · checked Sep 6, 2026
12	Dcit Conseil	Indirect evidence	Sene, FranceHQ checked Sep 6, 2026	n/a	47 contacts →
	“DCIT Conseil, société de services de consultation spécialisée dans la cybersécurité et les technologies de l'information.” Source: company website · checked Sep 6, 2026
13	ERIUM	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	37 contacts →
	“To be confident in your cyber defences, every person and technology must be confronted by reality.” Source: company website · checked Sep 6, 2026
14	Kytl Security	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	35 contacts →
	“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: company website · checked Sep 6, 2026
15	Excube	Indirect evidence	Lyon, FranceHQ checked Sep 6, 2026	11-50	33 contacts →
	“Notre positionnement Fondé en 2018, EXCUBE, cabinet-conseil spécialisé en Cybersécurité, délivre ses prestations en s’appuyant sur la connaissance du métier de ses clients…” Source: company website · checked Sep 6, 2026
16	Randorisec	Partial evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	32 contacts →
	“Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings” Source: company website · checked Sep 6, 2026
17	Artifeel	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	31 contacts →
	“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: company website · checked Sep 6, 2026
18	Sec-It	Indirect evidence	Levallois-perret, FranceHQ checked Sep 6, 2026	11-50	27 contacts →
	“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 6, 2026
19	Five Nines	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	25 contacts →
	“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: company website · checked Sep 6, 2026
20	Holiseum	Partial evidence	Puteaux, FranceHQ checked Sep 6, 2026	11-50	24 contacts →
	“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 6, 2026
21	Becycure	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	23 contacts →
	“Nous sommes une entreprise résolument orientée vers les services liés au domaine de la Cybersécurité.” Source: company website · checked Sep 6, 2026
22	Kyron Solutions Informatiques	Indirect evidence	Toulouse, FranceHQ checked Sep 6, 2026	11-50	23 contacts →
	Source: company website · checked Sep 6, 2026
23	NBS System	Indirect evidence	Champs-sur-marne, FranceHQ checked Sep 6, 2026	11-50	21 contacts →
	“Pour de nombreuses entreprises, la thématique de la sécurité arrive après compromission.” Source: company website · checked Sep 6, 2026
24	Seclab	Indirect evidence	Pérols, FranceHQ checked Sep 6, 2026	11-50	20 contacts →
	“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 6, 2026
25	V6protect	Indirect evidence	Bordeaux, FranceHQ checked Sep 6, 2026	11-50	17 contacts →
	“Web applications are at the heart of business processes.” Source: company website · checked Sep 6, 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: utility 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 cybersecurity companies.
Partial evidence: Its own public description names part of utility 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 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 25 of 190 utility cybersecurity companies based in France

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Utility cybersecurity companies based in France at a glance

As of Sep 6, 2026

44.2%Verified-email coverage

1.9%Mobile-number coverage

42.0Average contacts per company

1-10Median size (employees)

32.1%Largest-city concentration · Paris

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

125

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

3,3040–30

19931–60

261–90

190–180

19180+

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 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 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 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 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, 3,525 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 6, 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.

Utility cybersecurity companies by metro

Utility cybersecurity companies in Paris61

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 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 cybersecurity companies are there based in France?

RevenueBase identified 190 utility 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 cybersecurity companies?

Paris leads with 61 headquartered companies, followed by Lyon (7) 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 3,525 verified decision-maker contacts tracked across these 190 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 6, 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.