Company lists · Data refreshed September 2026

Top 25 Cybersecurity audit companies based in Paris, France

Name: Cybersecurity audit companies based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 122 companies tracked

RevenueBase identified 122 cybersecurity audit companies headquartered in Paris, France as of September 2026 and tracks 2,666 professional contacts across them, including 989 with verified work emails and 41 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity audit companies headquartered in Paris, 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 10, 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 10, 2026 86% judged on-target in blind review

122Companies

2,666Contacts tracked

989Verified emails

41Mobile numbers

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The 25 largest cybersecurity audit companies based in Paris, France

Ranked by team size

Top 25 of 122 cybersecurity audit companies based in Paris, France, ranked by team size, largest first. Data refreshed Sep 10, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity audit 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	own.security	Partial evidence	Paris, FranceHQ checked Sep 10, 2026	51-200	506 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 10, 2026
2	Neverhack	Partial evidence	Paris, FranceHQ checked Sep 10, 2026	1,001-5,000	382 contacts →
	Partial evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 10, 2026
3	Synacktiv	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	201-500	171 contacts →
	Indirect evidence “Synacktiv is an offensive security company founded in 2012 by several security experts.” Source: RevenueBase Database · checked Sep 10, 2026
4	Evabssi	Partial evidence	Paris, FranceHQ checked Sep 10, 2026	201-500	117 contacts →
	Partial evidence “EvaBssi is an international consulting firm specialized in cybersecurity and IS performance.” Source: RevenueBase Database · checked Sep 10, 2026
5	XMCO	Partial evidence	Paris, FranceHQ checked Sep 10, 2026	51-200	111 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 10, 2026
6	Cyberlift	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	51-200	56 contacts →
	Indirect evidence “Cyberlift, l'excellence et l'engagement, au service de votre cybersécurité.” Source: RevenueBase Database · checked Sep 10, 2026
7	Feelagile	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	39 contacts →
	Indirect evidence “FeelAgile est une start-up innovante spécialisée dans la conformité et la certification en cybersécurité.” Source: RevenueBase Database · checked Sep 10, 2026
8	Løvell	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	37 contacts →
	Indirect evidence “Qui sommes-nous?” Source: RevenueBase Database · checked Sep 10, 2026
9	Kytl Security	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	35 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 10, 2026
10	ACG Cybersecurity	Strong evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	33 contacts →
	Strong evidence “ACG Cybersecurity est un cabinet d’Audit, de Conseil et de Gouvernance spécialisé en matière de Cybersécurité.” Source: RevenueBase Database · checked Sep 10, 2026
11	Randorisec	Strong evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	32 contacts →
	Strong evidence “Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings” Source: RevenueBase Database · checked Sep 10, 2026
12	Cogiceo	Partial evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	32 contacts →
	Partial evidence “COGICEO is a company founded in 2012, specializing in IT security audits and penetration testing (pentest).” Source: RevenueBase Database · checked Sep 10, 2026
13	Five Nines	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	25 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 10, 2026
14	Harmonie Technologie Site	Partial evidence	Paris, FranceHQ checked Sep 10, 2026	51-200	21 contacts →
	Partial evidence “As the main independent provider of cybersecurity and risk management consulting and technical expertise, Harmonie Technologie partners with key accounts (mainly from CAC40 and…” Source: RevenueBase Database · checked Sep 10, 2026
15	Intuity	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	15 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 10, 2026
16	DND Agency	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	13 contacts →
	Indirect evidence “Are we legion?” Source: RevenueBase Database · checked Sep 10, 2026
17	Zero Trust SAS	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	10 contacts →
	Indirect evidence “ZeroTrust fournit aux PME-ETI une protection totale de leurs actifs et de leurs données.” Source: RevenueBase Database · checked Sep 10, 2026
18	Cybertic	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	1-10	10 contacts →
	Indirect evidence “Cyber attaque, pénétration, hameçonnage… Depuis 2010 et la multiplication des Cyber-attaques, la cyber sécurité n’est plus une option pour les DSI, sa maîtrise est devenu…” Source: RevenueBase Database · checked Sep 10, 2026
19	Kamea Security	Strong evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	10 contacts →
	Strong evidence “Our services- Pentest / cybersecurity audit - Red Team as a Service - CISO as a Service - Risk Assessment” Source: RevenueBase Database · checked Sep 10, 2026
20	Cyber Experts	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	1-10	10 contacts →
	Indirect evidence “Startup, VSE and SME specialists, at Cyber Experts, we build a solid digital rampart for your company, allowing it to strengthen itself against cyber attackers.” Source: RevenueBase Database · checked Sep 10, 2026
21	Highjack Offensive Cybersecurity	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	1-10	10 contacts →
	Indirect evidence “Chez High Jack, nous sommes bien plus que des accompagnateurs de digitalisation, nous sommes des catalyseurs de la transformation numérique de votre structure!” Source: RevenueBase Database · checked Sep 10, 2026
22	Securitrust	Partial evidence	Paris, FranceHQ checked Sep 10, 2026	1-10	9 contacts →
	Partial 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 10, 2026
23	cybersolutions.fr	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	11-50	9 contacts →
	Indirect evidence “For 10 years we have supported our clients in protecting their information assets: SIEM / SOC / SOAR; Threat Intelligence / UBA / IAM / API Security” Source: RevenueBase Database · checked Sep 10, 2026
24	Coralium	Partial evidence	Paris, FranceHQ checked Sep 10, 2026	1-10	9 contacts →
	Partial evidence “Coralium est votre partenaire de confiance pour la cybersécurité de votre entreprise : audits SSI, tests d’intrusion (pentest), formation de vos collaborateurs, … Coralium est une…” Source: RevenueBase Database · checked Sep 10, 2026
25	Cyber ICS	Indirect evidence	Paris, FranceHQ checked Sep 10, 2026	1-10	8 contacts →
	Indirect evidence “CYBER ICS is specialized in auditing and securing critical infrastructures.” Source: RevenueBase Database · checked Sep 10, 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: cybersecurity audit 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 cybersecurity audit companies.
Partial evidence: Its own public description names part of cybersecurity audit companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity audit 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 122 cybersecurity audit companies based in Paris, France

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Cybersecurity audit companies based in Paris, France at a glance

As of Sep 10, 2026

37.1%Verified-email coverage

1.5%Mobile-number coverage

21.9Average contacts per company

1-10Median size (employees)

115.6%Largest-city concentration · Paris

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

9090–30

7531–60

161–90

090–180

4180+

Company record updated

Median 63.0d

00–30

1,31731–60

98861–90

23490–180

127180+

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 cybersecurity audit 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 Paris, France whose own description of what they do matches “cybersecurity audit 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 cybersecurity audit 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 cybersecurity audit companies, and records with no verified work email. Companies headquartered outside Paris 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, 989 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 10, 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.

Cybersecurity audit companies by metro in France

Cybersecurity audit companies in Paris141

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 cybersecurity audit 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 cybersecurity audit companies are there based in Paris, France?

RevenueBase identified 122 cybersecurity audit companies headquartered in Paris, 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?

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

Which city has the most cybersecurity audit companies?

Paris leads with 141 headquartered companies, followed by Lyon (16) and Toulouse (11).

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 989 verified decision-maker contacts tracked across these 122 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 10, 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.