Company lists · Data refreshed September 2026

Top 25 Iso 27001 information security audit companies based in France

Name: Iso 27001 information security audit companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 119 companies tracked

RevenueBase identified 119 iso 27001 information security audit companies headquartered in France as of September 2026 and tracks 963 professional contacts across them, including 162 with verified work emails. Paris is the largest hub.

This list covers iso 27001 information security audit 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

119Companies

963Contacts tracked

162Verified emails

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The 25 largest iso 27001 information security audit companies based in France

Ranked by team size

Top 25 of 119 iso 27001 information security audit 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 iso 27001 information security 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	XMCO	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	111 contacts →
	Strong 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
2	digital.security	Partial evidence	Bezons, FranceHQ checked Sep 28, 2026	201-500	44 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
3	ZIWIT	Indirect evidence	Montpellier, FranceHQ checked Sep 28, 2026	51-200	38 contacts →
	Indirect evidence “Looking for services & solutions to secure your organization and your web applications?” Source: RevenueBase Database · checked Sep 28, 2026
4	Løvell	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “Qui sommes-nous?” Source: RevenueBase Database · checked Sep 28, 2026
5	France Certification	Partial evidence	Quimper, FranceHQ checked Sep 28, 2026	11-50	34 contacts →
	Partial evidence “Depuis 20 ans, France Certification forme et accompagne les entreprises au maintien et à l'obtention de toutes les certifications et normes ISO.” Source: RevenueBase Database · checked Sep 28, 2026
6	ACG Cybersecurity	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	33 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
7	ITQ Security	Partial evidence	Lognes, FranceHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “EXPERTS SECURITE Notre priorité votre sécurité!” Source: RevenueBase Database · checked Sep 28, 2026
8	Aphelio	Indirect evidence	Grenoble, FranceHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Nous proposons un accompagnement spécialisé aux entreprises et aux collectivités pour renforcer la sécurité de leurs infrastructures numériques.” Source: RevenueBase Database · checked Sep 28, 2026
9	Polaris ST	Partial evidence	Saint-priest, FranceHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial 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
10	AKANT	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “Bienvenue chez Akant, votre allié dans la sécurité!” Source: RevenueBase Database · checked Sep 28, 2026
11	Securitrust	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	9 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
12	Cyber ICS	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	8 contacts →
	Partial evidence “CYBER ICS is specialized in auditing and securing critical infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
13	Reciproc-It	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	7 contacts →
	Strong evidence “Reciproc-it is an Information Security System Consulting Firm.” Source: RevenueBase Database · checked Sep 28, 2026
14	Abbana Cybersécurité, Cloud, Infrastructures	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	6 contacts →
	Partial evidence “ABBANA est une société d’ingénierie informatique spécialisée en Cybersécurité, Cloud, DevOps, et Infogérance.” Source: RevenueBase Database · checked Sep 28, 2026
15	Stelau Conseil	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	6 contacts →
	Strong 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
16	Wannath	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Wannath helps you design and enhance high-value-added IT security and risk management projects, tailored to adapt to the needs and ambitions of your company.” Source: RevenueBase Database · checked Sep 28, 2026
17	Ventury Technology	Indirect evidence	Lyon, FranceHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “La cybersécurité est bien plus qu'une simple protection contre les menaces, c'est un engagement envers la sécurité, la confiance et la croissance de votre entreprise.” Source: RevenueBase Database · checked Sep 28, 2026
18	VEYAN	Partial evidence	Vannes, FranceHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial 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
19	Exocco	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	3 contacts →
	Strong evidence “Exocco accompagne les entreprises dans la structuration de leur sécurité : mise en conformité ISO 27001, préparation aux exigences de la directive européenne NIS 2, et infogérance…” Source: RevenueBase Database · checked Sep 28, 2026
20	Lcit Cybersecurity	Strong evidence	Chatou, FranceHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “LCIT est un cabinet de consulting spécialisé en sécurité et plus particulièrement dans les accompagnements aux certifications -ISO 27001 (mettre en oeuvre d'un Système de…” Source: RevenueBase Database · checked Sep 28, 2026
21	Artecys	Partial evidence	Saint-étienne, FranceHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Artecys est une entreprise spécialisée dans la sécurité informatique.” Source: RevenueBase Database · checked Sep 28, 2026
22	JRO Informatique	Strong evidence	Le Mans, FranceHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “JRO informatique est une société de prestation de services spécialisée dans le conseil et l'audit.” Source: RevenueBase Database · checked Sep 28, 2026
23	Lumisec	Partial evidence	Courbevoie, FranceHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Lumisec est une entreprise française spécialisée en sécurité informatique.” Source: RevenueBase Database · checked Sep 28, 2026
24	gestionqualite.com	Strong evidence	Arc Sur Tille, FranceHQ checked Sep 28, 2026	1-10	1 contacts →
	Strong evidence “GESTIONQUALITE.COM - AUDIT, CONSEIL & ACCOMPAGNEMENT ISO 9001 - ISO 13485 - EN9001 - ISO 14001 NF 214 - AFAQ ISO 9001 OF - QUALIOPI NF 518 Audioprothésiste - QHN MASE - ISO 17020…” Source: RevenueBase Database · checked Sep 28, 2026
25	Xpereos Consulting	Partial evidence	Toulouse, FranceHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Fondée en 2021, Xpereos Consulting offre aux entreprises des prestations d’audit et de conseil avancées ainsi que des prestations d’intégrations de solutions, autour de la…” Source: RevenueBase Database · checked Sep 28, 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: iso 27001 information security 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 iso 27001 information security audit companies.
Partial evidence: Its own public description names part of iso 27001 information security audit companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name iso 27001 information security 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 119 iso 27001 information security audit companies based in France

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Iso 27001 information security audit companies based in France at a glance

As of Sep 28, 2026

16.8%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

19.3%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 119 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 iso 27001 information security 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 France whose own description of what they do matches “iso 27001 information security 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 iso 27001 information security 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 iso 27001 information security audit 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, 162 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.

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 iso 27001 information security 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 iso 27001 information security audit companies are there based in France?

RevenueBase identified 119 iso 27001 information security audit 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?

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

Which city has the most iso 27001 information security audit companies?

Paris leads with 23 headquartered companies, followed by Lyon (9) and Montpellier (4).

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 162 verified decision-maker contacts tracked across these 119 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.