Company lists · Data refreshed November 2026

Top 25 IT security consultants based in France

RevenueBase identified 616 company matches for IT security consultants associated with France as of November 2026 and tracks 7,331 professional contacts across them, including 2,473 with verified work emails. Paris is the largest hub.

This list covers company matches for IT security consultants 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 November 5, 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 Nov 5, 2026 How this list was built
616Companies
7,331Contacts tracked
2,473Verified emails
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The 25 largest IT security consultants based in France

Ranked by team size
Top 25 of 616 company matches for IT security consultants based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 Nov 5, 2026501-1,000827 contacts →

Exact match

“The growing threat of cyber risks, the expansion of cloud computing and the emergence of the DevOps movement are reshaping IT practices, enlighting the relevance of our vision for…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchCourbevoie, FranceHQ recorded Nov 5, 20261,001-5,000687 contacts →

Exact match

“I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchParis, FranceHQ recorded Nov 5, 202651-200558 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchParis, FranceHQ recorded Nov 5, 2026201-500370 contacts →

Exact match

“Founded in 2010, Synetis is the leading independent French consultancy firm specialising in information systems security (ISS).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchParis, FranceHQ recorded Nov 5, 20261,001-5,000132 contacts →

Exact match

“NEVERHACK is a French group specialized in cybersecurity for over 40 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchSaint-quentin-en-yvelines, FranceHQ recorded Nov 5, 202651-20089 contacts →

Exact match

“Sekera Services est un cabinet de conseil homologué par la DGSSI comme prestataire d’audit de sécurité SI (PASSI) répondant aux exigences en termes de démarche et qualifications…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchLyon, FranceHQ recorded Nov 5, 202611-5089 contacts →

Exact match

“Fondée à Lyon en 2002, KNS est une Entreprise de Service du Numérique qui intervient à tous les niveaux de la sécurisation des Systèmes d'Information en France et à l'étranger.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchLannion, FranceHQ recorded Nov 5, 2026n/a83 contacts →

Exact match

“Depuis 20 ans, Isitix accompagne vos projets informatiques et numériques.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchMalakoff, FranceHQ recorded Nov 5, 202651-20079 contacts →

Exact match

“Aduneo vous accompagne à chaque étape pour protéger vos identités, sécuriser vos données et simplifier votre quotidien.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchParis, FranceHQ recorded Nov 5, 202651-20067 contacts →

Exact match

“Cyberlift, l'excellence et l'engagement, au service de votre cybersécurité.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchLe Plessis-robinson, FranceHQ recorded Nov 5, 202651-20064 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 · Nov 5, 2026 · View company records in RevenueBase
12Exact matchSaint-cloud, FranceHQ recorded Nov 5, 202651-20062 contacts →

Exact match

“LA SÉCURITÉ CRÉATRICE DE VALEUR POUR LES CLIENTS Login Sécurité accompagne les DSI dans la définition et la mise en œuvre de leur stratégie de Confiance Numérique.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchParis / Toulouse / Madrid, FranceHQ recorded Nov 5, 202651-20058 contacts →

Exact match

“Nos collaborateurs, experts dans les domaines de la security et la safety, interviennent depuis la réalisation des analyses de risque jusqu'à la recette sécurité du projet confié…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchMalakoff, FranceHQ recorded Nov 5, 202611-5058 contacts →

Exact match

“Votre logiciel métier devrait vous appartenir.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSaint-mandé, FranceHQ recorded Nov 5, 202651-20055 contacts →

Exact match

“Qui sommes-nous?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchParis, FranceHQ recorded Nov 5, 202651-20051 contacts →

Exact match

“Conix Technologies et Services est une ESN, filiale de Conix Services créée en 1997, dédiée à la réalisation et à la sécurisation du Système d’Information de l’entreprise étendue.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchParis, FranceHQ recorded Nov 5, 202611-5047 contacts →

Exact match

“Créé en 2017, REDOPUS est spécialisée en sécurité, réseaux des systèmes d'informations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchPuteaux, FranceHQ recorded Nov 5, 202611-5046 contacts →

Exact match

“Navigacom, cabinet de conseil indépendant, expert dans les Infrastructures IT & Cybersécurité.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchSene, FranceHQ recorded Nov 5, 2026n/a46 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 · Nov 5, 2026 · View company records in RevenueBase
20Exact matchParis, FranceHQ recorded Nov 5, 202611-5043 contacts →

Exact match

“Cabinet de conseil à taille humaine spécialisé dans les infrastructures Datacenters, réseaux et sécurité.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchBezons, FranceHQ recorded Nov 5, 2026201-50042 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 · Nov 5, 2026 · View company records in RevenueBase
22Exact matchParis, FranceHQ recorded Nov 5, 202611-5040 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 · Nov 5, 2026 · View company records in RevenueBase
23Exact matchParis, FranceHQ recorded Nov 5, 202611-5039 contacts →

Exact match

“Qui sommes-nous?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchLyon, FranceHQ recorded Nov 5, 202611-5039 contacts →

Exact match

“Notre positionnement Fondé en 2018, EXCUBE, cabinet-conseil spécialisé en Cybersécurité, délivre ses prestations en s’appuyant sur la connaissance du métier de ses clients…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchRennes, FranceHQ recorded Nov 5, 202611-5039 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 · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 616 IT security consultants based in France

See the full list, filter by size, metro and specialty, and access 2,473 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT security consultants based in France at a glance

As of Nov 5, 2026
33.7%Verified-email coverage
11.9Average contacts per company
1-10Median size (employees)
27.9%Largest-city concentration · Paris
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
432
11-50
140
51-200
30
201-500
4
501-1,000
1
1,001-5,000
2
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 616 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 consultants” 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 2,473 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 November 5, 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.

IT security consultants by metro

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 consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT security consultants are there based in France?

RevenueBase identified 616 company matches for IT security consultants associated with France as of November 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?

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

Which city has the most IT security consultants?

Paris leads with 172 company records, followed by Lyon (17) and Toulouse (10).

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 2,473 professional contacts with verified work emails tracked across these 616 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 November 5, 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.