Company lists · Data refreshed September 2026

Top 25 Financial services security consulting firms based in France

RevenueBase identified 539 financial services security consulting firms headquartered in France as of September 2026 and tracks 8,382 professional contacts across them, including 1,829 with verified work emails. Paris is the largest hub.

This list covers financial services security consulting firms 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
539Companies
8,382Contacts tracked
1,829Verified emails
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The 25 largest financial services security consulting firms based in France

Ranked by team size
Top 25 of 539 financial services security consulting firms 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 financial services security consulting firms: 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 evidenceMarseille, FranceHQ checked Sep 28, 202610001+1,007 contacts →

Indirect evidence

“La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceCourbevoie, FranceHQ checked Sep 28, 20261,001-5,000639 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceParis, FranceHQ checked Sep 28, 202651-200506 contacts →

Indirect 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 28, 2026
4Indirect evidenceParis, FranceHQ checked Sep 28, 20261,001-5,000382 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceParis, FranceHQ checked Sep 28, 2026201-500117 contacts →

Partial evidence

“EvaBssi is an international consulting firm specialized in cybersecurity and IS performance.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSaint-quentin-en-yvelines, FranceHQ checked Sep 28, 202651-20088 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceLevallois-perret, FranceHQ checked Sep 28, 2026201-50081 contacts →

Indirect evidence

“Cabinet de conseil en pleine expansion, INGENIANCE intervient sur des problématiques liées aux systèmes d’information, dans les secteurs de la banque et de la finance de marché.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceLe Plessis-robinson, FranceHQ checked Sep 28, 202651-20075 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceMalakoff, FranceHQ checked Sep 28, 202651-20073 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceArcueil, FranceHQ checked Sep 28, 202651-20073 contacts →

Indirect evidence

“Créée en avril 2005 à Antony, dans les Hauts de Seine, Notre croissance s’effectue aussi bien dans les domaines de la Grande Distribution, du spectacle vivant ou des collectivités…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceSaint-cloud, FranceHQ checked Sep 28, 202651-20059 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceParis, FranceHQ checked Sep 28, 202651-20056 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceSaint-mandé, FranceHQ checked Sep 28, 202651-20052 contacts →

Indirect evidence

“Qui sommes-nous?”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect 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
15Indirect evidenceRennes, FranceHQ checked Sep 28, 202611-5040 contacts →

Indirect evidence

“ORNISEC est un cabinet d’expertise à la pointe de la cybersécurité, qualifié PASSI RGS, PACS et PASSI LPM par l'ANSSI.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5037 contacts →

Indirect evidence

“Qui sommes-nous?”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect 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
18Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5037 contacts →

Indirect evidence

“Milestone Advisory, cabinet de conseil indépendant, développe ses activités autour d’expertises réglementaires fortes et fédère des compétences juridiques, opérationnelles et de…”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceParis, FranceHQ checked Sep 28, 202611-5037 contacts →

Strong evidence

“Hiram Finance is a consulting firm specialising in financial markets which was founded in 1998 and currently has 45 consultants.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5035 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 28, 2026
21Indirect evidenceLyon, FranceHQ checked Sep 28, 202611-5033 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect 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
23Indirect evidenceParis, FranceHQ checked Sep 28, 202611-5030 contacts →

Indirect evidence

“Cabinet de conseil indépendant à taille humaine, nous aidons nos clients à maitriser leurs risques numériques sur les domaines : • Cybersécurité : prévenir, détecter et remédier…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect 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
25Partial evidenceParis, FranceHQ checked Sep 28, 202651-20029 contacts →

Partial evidence

“BEAM & SAGALINK est un cabinet de conseil en stratégie et organisation spécialisé dans le secteur bancaire et financier.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 539 financial services security consulting firms based in France

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Financial services security consulting firms based in France at a glance

As of Sep 28, 2026
21.8%Verified-email coverage
15.6Average contacts per company
1-10Median size (employees)
32.7%Largest-city concentration · Paris
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
377
11-50
123
51-200
28
201-500
4
1,001-5,000
4
5,001-10,000
1
10001+
2

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 539 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 financial services security consulting firms, 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 “financial services security consulting firms”. 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 financial services security consulting firms), 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 financial services security consulting firms, 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, 1,829 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.

Financial services security consulting firms 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 financial services security consulting firms, 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 financial services security consulting firms are there based in France?

RevenueBase identified 539 financial services security consulting firms 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?

Onet Sécurité, headquartered in France, tops this list with the largest team on record.

Which city has the most financial services security consulting firms?

Paris leads with 176 headquartered companies, followed by Lyon (18) and Toulouse (10).

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 1,829 verified decision-maker contacts tracked across these 539 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.