Company lists · Data refreshed September 2026

Top 25 Data security audit services based in France

RevenueBase identified 113 data security audit services headquartered in France as of September 2026 and tracks 1,043 professional contacts across them, including 153 with verified work emails. Paris is the largest hub.

This list covers data security audit services 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 28, 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 28, 2026 86% judged on-target in blind review
113Companies
1,043Contacts tracked
153Verified emails
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The 25 largest data security audit services based in France

Ranked by team size
Top 25 of 113 data security audit services based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to data security audit services: 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
1Indirect evidenceSene, FranceHQ checked Sep 28, 2026n/a47 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5037 contacts →

Indirect evidence

“Qui sommes-nous?”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceRezé, FranceHQ checked Sep 28, 202611-5037 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceParis, FranceHQ checked Sep 28, 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 28, 2026
5Indirect evidenceRouen, FranceHQ checked Sep 28, 202611-5030 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceWambrechies, FranceHQ checked Sep 28, 202611-5027 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceLimonest, FranceHQ checked Sep 28, 202611-5026 contacts →

Indirect evidence

“Certilience, Votre sécurité informatique, notre priorité!”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceSaint-priest, FranceHQ checked Sep 28, 202611-5016 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5015 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidencePuteaux, FranceHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceParis, FranceHQ checked Sep 28, 20261-109 contacts →

Strong evidence

“Fondée sur une expertise en sécurité des systèmes d’informations, SecuriTrust offre aux entreprises et aux administrations des prestations d’audits et de conseils avancés ainsi…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidencePalaiseau, FranceHQ checked Sep 28, 20261-108 contacts →

Indirect evidence

“Société de conseil en Sécurité de l'Information, ORASYS accompagne ses clients pour - Formaliser et piloter leurs plans d'action de sécurité- Estimer et évaluer leurs risques…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceParis, FranceHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Reciproc-it is an Information Security System Consulting Firm.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceParis, FranceHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“Créé en 2002, Stelau Conseil est un cabinet d'audit et de conseil spécialisé dans la sécurité des systèmes d'information.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceParis, FranceHQ checked Sep 28, 202611-504 contacts →

Indirect evidence

“Fondé et opérationnel depuis septembre 2023, PSSWRD est un cabinet de conseil pure-player en cybersécurité, réunissant des femmes et des hommes engagés autour de valeurs fortes …”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceVannes, FranceHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Spécialiste des technologies de l'information, Veyan est une société de conseil qui vous accompagne dans la sécurisation de votre patrimoine numérique.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceLabège, FranceHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“Oxydian est une société innovante de service en cybersécurité Nos experts en sécurité offensive réalisent des audits intrusifs et développent des solutions techniques novatrices…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceParis, FranceHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“CySAFE Consulting est un cabinet de conseil spécialisé en cybersécurité et management des risques qui accompagne les grandes, comme les petites entreprises, ainsi que les…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceJouy Sur Eure, FranceHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“AKAOMA – Your Cybersecurity Partner Since 2002, AKAOMA has been supporting businesses, institutions, and organizations in facing ever-growing cyber threats.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceParis, FranceHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Depuis plus de 20 ans, notre ESN accompagne de grands groupes dans la sécurisation de leurs données et la gestion des risques liés à la cybersécurité.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceLille, FranceHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“We detect vulnerabilities, identify the most important assets, prioritize the most serious breaches, decide what actions to take, mitigate and control compliances and protect…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceParis, FranceHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“MA Cyber vous accompagne dans la sécurisation de votre système d'information.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceSotteville-lès-rouen, FranceHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“Torii Security est cabinet d'expertise spécialisée en Sécurité des Systèmes d'Information.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceParis, FranceHQ checked Sep 28, 202611-502 contacts →

Indirect evidence

“BMB ConsultX is a cybersecurity consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceSt-étienne, FranceHQ checked Sep 28, 20261-101 contacts →

Strong evidence

“We offer various tailored security audits for companies of any size.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 113 data security audit services based in France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 153 reachable decision-makers.

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Data security audit services based in France at a glance

As of Sep 28, 2026
14.7%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
26.5%Largest-city concentration · Paris
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
91
11-50
20
51-200
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 113 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 data security audit services, 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 “data security audit services”. 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 data security audit services), 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 data security audit services, 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, 153 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 28, 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.

Data security audit services 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 data security audit services, 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 data security audit services are there based in France?

RevenueBase identified 113 data security audit services 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?

Dcit Conseil, headquartered in Sene, tops this list with the largest team on record.

Which city has the most data security audit services?

Paris leads with 30 headquartered companies, followed by Lyon (4) and Strasbourg (3).

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 153 verified decision-maker contacts tracked across these 113 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 28, 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.