Company lists · Data refreshed November 2026

Top 24 Information security engineers based in France

RevenueBase identified 189 company matches for information security engineers associated with France as of November 2026 and tracks 2,989 professional contacts across them, including 722 with verified work emails. Paris is the largest hub.

This list covers company matches for information security engineers associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
189Companies
2,989Contacts tracked
722Verified emails
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The 24 largest information security engineers based in France

Ranked by team size
Top 24 of 189 company matches for information security engineers based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMarseille, FranceHQ recorded Nov 5, 202610001+1,142 contacts →

Exact match

“La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchParis, FranceHQ recorded Nov 5, 202651-20067 contacts →

Exact match

“Cyberlift, l'excellence et l'engagement, au service de votre cybersécurité.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchLe Plessis-robinson, FranceHQ recorded Nov 5, 202651-20064 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchParis / Toulouse / Madrid, FranceHQ recorded Nov 5, 202651-20058 contacts →

Exact match

“Nos collaborateurs, experts dans les domaines de la security et la safety, interviennent depuis la réalisation des analyses de risque jusqu'à la recette sécurité du projet confié…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchParis, FranceHQ recorded Nov 5, 202651-20051 contacts →

Exact match

“Conix Technologies et Services est une ESN, filiale de Conix Services créée en 1997, dédiée à la réalisation et à la sécurisation du Système d’Information de l’entreprise étendue.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchParis, FranceHQ recorded Nov 5, 202611-5047 contacts →

Exact match

“Créé en 2017, REDOPUS est spécialisée en sécurité, réseaux des systèmes d'informations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchSene, FranceHQ recorded Nov 5, 2026n/a46 contacts →

Exact match

“DCIT Conseil, société de services de consultation spécialisée dans la cybersécurité et les technologies de l'information.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchBezons, FranceHQ recorded Nov 5, 2026201-50042 contacts →

Exact match

“Founded in 2015 by a group of IT security experts with the support of the Econocom Group, digital.security (~ 230 experts) aims to offer companies and government organisations…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchParis, FranceHQ recorded Nov 5, 202611-5040 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchParis, FranceHQ recorded Nov 5, 202611-5039 contacts →

Exact match

“Qui sommes-nous?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchLyon, FranceHQ recorded Nov 5, 202611-5039 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchRennes, FranceHQ recorded Nov 5, 202611-5039 contacts →

Exact match

“ORNISEC est un cabinet d’expertise à la pointe de la cybersécurité, qualifié PASSI RGS, PACS et PASSI LPM par l'ANSSI.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchParis, FranceHQ recorded Nov 5, 202651-20028 contacts →

Exact match

“Created in 2009, Systemis is an international group (50 people, France, Luxemburg, UK) and covers three major areas - Architecture and Counselling in Security- IT Security…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchLevallois-perret, FranceHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchRouen, FranceHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“Fondée en 2001, ACE Service concentre son activité sur son savoir-faire : la sécurité des systèmes d'information.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchLimonest, FranceHQ recorded Nov 5, 202611-5026 contacts →

Exact match

“Certilience, Votre sécurité informatique, notre priorité!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchParis, FranceHQ recorded Nov 5, 202611-5024 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchChamps-sur-marne, FranceHQ recorded Nov 5, 202611-5024 contacts →

Exact match

“Pour de nombreuses entreprises, la thématique de la sécurité arrive après compromission.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchMontrouge, FranceHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“EYACOM is dedicated to delivering top-tier security services to its clients within the IT sector.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchLognes, FranceHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“EXPERTS SECURITE Notre priorité votre sécurité!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchParis-lyon-aix/marseille, FranceHQ recorded Nov 5, 202611-5017 contacts →

Exact match

“Nous veillons sur la sécurité de votre Système d’Information.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchVilleneuve D'ascq, FranceHQ recorded Nov 5, 20261-1015 contacts →

Exact match

“6HAT, société créée en 2012, est une société de service en ingénierie informatique spécialisée en réseaux et sécurité.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchParis, FranceHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“Nous aidons les entreprises à sécuriser leurs actifs, tels que leurs applications web et leurs systèmes d'information, tout en renforçant la sécurité globale des organisations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchPuteaux, FranceHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 24 of 189 information security engineers based in France

See the full list, filter by size, metro and specialty, and access 722 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Information security engineers based in France at a glance

As of Nov 5, 2026
24.2%Verified-email coverage
15.8Average contacts per company
1-10Median size (employees)
32.8%Largest-city concentration · Paris
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
119
11-50
55
51-200
12
201-500
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 189 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with France whose business descriptions match “information security engineers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 722 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Information security engineers by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “information security engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many information security engineers are there based in France?

RevenueBase identified 189 company matches for information security engineers associated with France as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Onet Sécurité tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most information security engineers?

Paris leads with 62 company records, followed by Lyon (5) and Bordeaux (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 722 professional contacts with verified work emails tracked across these 189 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 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.