Company lists · Data refreshed September 2026

Top 25 IT security audit services based in France

RevenueBase identified 274 company matches for IT security audit services associated with France as of September 2026 and tracks 2,499 professional contacts across them, including 508 with verified work emails. Paris is the largest hub.

This list covers company matches for IT security audit services 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 September 21, 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 Sep 21, 2026 How this list was built
274Companies
2,499Contacts tracked
508Verified emails
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The 25 largest IT security audit services based in France

Ranked by team size
Top 25 of 274 company matches for IT security audit services based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchParis, FranceHQ recorded Sep 21, 202651-200506 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchLe Plessis-robinson, FranceHQ recorded Sep 21, 202651-20075 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 · Sep 21, 2026 · View company records in RevenueBase
3Exact matchSene, FranceHQ recorded Sep 21, 2026n/a47 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 · Sep 21, 2026 · View company records in RevenueBase
4Exact matchBezons, FranceHQ recorded Sep 21, 2026201-50044 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 · Sep 21, 2026 · View company records in RevenueBase
5Exact matchVendeville, FranceHQ recorded Sep 21, 202611-5041 contacts →

Exact match

“Services aux entreprises dans différents domaines des infrastructures informatique.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchRennes, FranceHQ recorded Sep 21, 202611-5040 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 · Sep 21, 2026 · View company records in RevenueBase
7Exact matchMontpellier, FranceHQ recorded Sep 21, 202651-20038 contacts →

Exact match

“Looking for services & solutions to secure your organization and your web applications?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchRezé, FranceHQ recorded Sep 21, 202611-5037 contacts →

Exact match

“Digitemis est expert dans le conseil en cybersécurité et protection des données personnelles.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchParis, FranceHQ recorded Sep 21, 202611-5033 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 · Sep 21, 2026 · View company records in RevenueBase
10Exact matchParis, FranceHQ recorded Sep 21, 202611-5032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchParis, FranceHQ recorded Sep 21, 202611-5032 contacts →

Exact match

“COGICEO is a company founded in 2012, specializing in IT security audits and penetration testing (pentest).”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchRouen, FranceHQ recorded Sep 21, 202611-5030 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 · Sep 21, 2026 · View company records in RevenueBase
13Exact matchWambrechies, FranceHQ recorded Sep 21, 202611-5027 contacts →

Exact match

“Nos offres de service - Audit et Conseils informatiques (gouvernance, sécurité & infrastructure)- Pilotage et Gestion de Système d'informations (DSI à temps partagé.)-…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchLevallois-perret, FranceHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
15Exact matchLimonest, FranceHQ recorded Sep 21, 202611-5026 contacts →

Exact match

“Certilience, Votre sécurité informatique, notre priorité!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchPuteaux, FranceHQ recorded Sep 21, 202611-5024 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchMontrouge, FranceHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
18Exact matchChamps-sur-marne, FranceHQ recorded Sep 21, 202611-5021 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchSaint-remy-les-chevreuse, FranceHQ recorded Sep 21, 202611-5020 contacts →

Exact match

“De l’audit jusqu’à l’intégration, notre expertise dans les technologies de l’informatique nous permet de fournir les produits et solutions dont votre entreprise a besoin pour se…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchBoulogne-billancourt, FranceHQ recorded Sep 21, 202611-5020 contacts →

Exact match

“BlueTrusty is the Cyber security practice of ITS Group.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchLognes, FranceHQ recorded Sep 21, 202611-5018 contacts →

Exact match

“EXPERTS SECURITE Notre priorité votre sécurité!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchSaint-priest, FranceHQ recorded Sep 21, 202611-5016 contacts →

Exact match

“Fondée en 2010, Polaris Secure Technologies est une société de conseil spécialisée dans la sécurité des systèmes d’information.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchLille, FranceHQ recorded Sep 21, 202611-5015 contacts →

Exact match

“Iparcus; société d'expertise et de conseil en cybersécurité.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchParis, FranceHQ recorded Sep 21, 202611-5015 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 · Sep 21, 2026 · View company records in RevenueBase
25Exact matchParis-lyon-aix/marseille, FranceHQ recorded Sep 21, 202611-5015 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 274 IT security audit services based in France

See the full list, filter by size, metro and specialty, and access 508 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT security audit services based in France at a glance

As of Sep 21, 2026
20.3%Verified-email coverage
9.1Average contacts per company
1-10Median size (employees)
25.9%Largest-city concentration · Paris
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
206
11-50
57
51-200
9
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 274 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 “IT security audit services” 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 508 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 September 21, 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.

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 “IT security audit services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT security audit services are there based in France?

RevenueBase identified 274 company matches for IT security audit services associated with France as of September 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?

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

Which city has the most IT security audit services?

Paris leads with 71 company records, followed by Lille (9) and Lyon (7).

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 508 professional contacts with verified work emails tracked across these 274 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 September 21, 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.