Company lists · Data refreshed September 2026

Top 25 Infrastructure security assessment companies based in France

RevenueBase identified 198 infrastructure security assessment companies headquartered in France as of September 2026 and tracks 2,404 professional contacts across them, including 490 with verified work emails. Paris is the largest hub.

This list covers infrastructure security assessment 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 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
198Companies
2,404Contacts tracked
490Verified emails
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The 25 largest infrastructure security assessment companies based in France

Ranked by team size
Top 25 of 198 infrastructure security assessment companies 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 infrastructure security assessment 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceParis, FranceHQ checked Sep 28, 2026201-500171 contacts →

Partial evidence

“Synacktiv is an offensive security company founded in 2012 by several security experts.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceParis, FranceHQ checked Sep 28, 202651-200111 contacts →

Partial evidence

“Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceParis, FranceHQ checked Sep 28, 202651-20066 contacts →

Partial evidence

“LEXFO is an offensive security firm that assesses and strengthens your systems with an expert, pragmatic, results-driven approach.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidencePessac, FranceHQ checked Sep 28, 202611-5048 contacts →

Indirect evidence

“Expertise in cybersecurity testing takes years to build but can be lost in seconds.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect 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
6Partial evidenceBezons, FranceHQ checked Sep 28, 2026201-50044 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5037 contacts →

Indirect evidence

“Qui sommes-nous?”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5033 contacts →

Indirect 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
9Partial evidenceParis, FranceHQ checked Sep 28, 202611-5032 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceParis, FranceHQ checked Sep 28, 202611-5032 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect 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
12Indirect evidenceLimonest, FranceHQ checked Sep 28, 202611-5026 contacts →

Indirect evidence

“Certilience, Votre sécurité informatique, notre priorité!”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceToulouse, FranceHQ checked Sep 28, 202611-5023 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceMontrouge, FranceHQ checked Sep 28, 202611-5021 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceChamps-sur-marne, FranceHQ checked Sep 28, 202611-5021 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceMarquette-lez-lille, FranceHQ checked Sep 28, 202611-5017 contacts →

Indirect evidence

“Depuis 15 ans, IP Network Services conçoit, sécurise et fait vivre les réseaux qui tiennent les entreprises debout.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceCréteil, FranceHQ checked Sep 28, 202611-5017 contacts →

Partial evidence

“Créé en 2018, la forte expertise de ses collaborateurs dans le domaine Réseaux et Sécurité des infrastructures en fait un partenaire privilégié dans l'accompagnement des clients…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect 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
19Indirect evidenceSaulx Les Chartreux, FranceHQ checked Sep 28, 20261-1016 contacts →

Indirect evidence

“SPITZKOP Systems Engineering (SSE) is a French technology leader specializing in, and.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceLille, FranceHQ checked Sep 28, 202611-5015 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect 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
22Partial evidenceLyon, FranceHQ checked Sep 28, 202611-5014 contacts →

Partial evidence

“We support organisations of all sizes and across all sectors with - penetration testing on all types of targets (web and mobile apps, infrastructure, networks, cloud, IoT, etc.)-…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceLille, FranceHQ checked Sep 28, 202611-5014 contacts →

Indirect evidence

“QUI NOUS SOMMES Allistic est un cabinet de conseil en cybersécurité spécialisé dans l'accompagnement des retailers, acteurs de la santé et industriels.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect 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
25Indirect evidenceLille, FranceHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“SkillX accompagne les PME et ETI et grands groupes dans la sécurisation concrète de leur système d’information, de l’identification des failles jusqu’à leur remédiation.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 198 infrastructure security assessment companies based in France

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Infrastructure security assessment companies based in France at a glance

As of Sep 28, 2026
20.4%Verified-email coverage
12.1Average contacts per company
1-10Median size (employees)
26.3%Largest-city concentration · Paris
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
137
11-50
48
51-200
8
201-500
3
1,001-5,000
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 198 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 infrastructure security assessment 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 “infrastructure security assessment 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 infrastructure security assessment 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 infrastructure security assessment 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, 490 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.

Infrastructure security assessment companies 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 infrastructure security assessment 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 infrastructure security assessment companies are there based in France?

RevenueBase identified 198 infrastructure security assessment 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?

Synacktiv, headquartered in Paris, tops this list with the largest team on record.

Which city has the most infrastructure security assessment companies?

Paris leads with 52 headquartered companies, followed by Lyon (11) and Toulouse (7).

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 490 verified decision-maker contacts tracked across these 198 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.