Company lists · Data refreshed September 2026

Top 25 Cpa firm network security providers based in France

RevenueBase identified 132 cpa firm network security providers headquartered in France as of September 2026 and tracks 2,276 professional contacts across them, including 303 with verified work emails. Paris is the largest hub.

This list covers cpa firm network security providers 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 27, 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 27, 2026 86% judged on-target in blind review
132Companies
2,276Contacts tracked
303Verified emails
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The 25 largest cpa firm network security providers based in France

Ranked by team size
Top 25 of 132 cpa firm network security providers based in France, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cpa firm network security providers: 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 evidenceParis, FranceHQ checked Sep 27, 20261,001-5,0001,330 contacts →

Indirect evidence

“RSM en France, membre de RSM International, 6ème réseau international d'audit, expertise comptable et conseil, c'est 18 implantations dans les principaux pôles régionaux et près…”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceVenelles, FranceHQ checked Sep 27, 2026201-500139 contacts →

Indirect evidence

“ADNOV, filiale du groupe ADSN, acteur de renommée française à l'ancrage national, développe depuis plus de 40 ans une expertise reconnue dans la cybersécurité et la protection des…”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceLe Plessis-robinson, FranceHQ checked Sep 27, 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 27, 2026
4Indirect evidenceSene, FranceHQ checked Sep 27, 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 27, 2026
5Indirect evidenceRennes, FranceHQ checked Sep 27, 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 27, 2026
6Indirect evidenceLyon, FranceHQ checked Sep 27, 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 27, 2026
7Indirect evidenceLevallois-perret, FranceHQ checked Sep 27, 202611-5027 contacts →

Indirect evidence

“SEC-IT, filiale du groupe MCA, est le partenaire de référence en cybersécurité, combinant expertise en audit conseil, sécurité opérationnelle et formation pour accompagner les…”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5025 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 27, 2026
9Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5023 contacts →

Indirect evidence

“Nous sommes une entreprise résolument orientée vers les services liés au domaine de la Cybersécurité.”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceMarseille, FranceHQ checked Sep 27, 202611-5020 contacts →

Indirect evidence

“La CPEM fournit depuis 1992 des solutions informatiques aux cabinets d’expertise comptable.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceMérignies, FranceHQ checked Sep 27, 202611-5017 contacts →

Indirect evidence

“Sec-Cure est la marque commerciale de DC Communication.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceParis-lyon-aix/marseille, FranceHQ checked Sep 27, 202611-5015 contacts →

Indirect evidence

“Nous veillons sur la sécurité de votre Système d’Information.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceAix-en-provence, FranceHQ checked Sep 27, 202611-5013 contacts →

Indirect evidence

“Le groupe GECIA est un réseau de cabinets d'expertise comptable qui accompagne près de 1200 chefs d’entreprises TPE, PME et grandes entreprises de secteur différents.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5013 contacts →

Indirect evidence

“Are we legion?”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidencePantin, FranceHQ checked Sep 27, 20261-1011 contacts →

Indirect evidence

“LA CYBERSÉCURITÉ, VERSION AKYL Une approche aussi pragmatique que passionnée.”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceParis, FranceHQ checked Sep 27, 20261-1010 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 27, 2026
17Indirect evidenceCharleville-mézières, FranceHQ checked Sep 27, 20261-1010 contacts →

Indirect evidence

“APSecurity, une entreprise spécialisée en cybersécurité implantée dans les Ardennes, propose son expertise et un accompagnement dédié pour sécuriser les données numériques de…”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceParis, FranceHQ checked Sep 27, 202611-509 contacts →

Partial 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 27, 2026
19Indirect evidenceSaint-étienne, FranceHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceParis, FranceHQ checked Sep 27, 202651-2007 contacts →

Partial evidence

“Maguen Cyber was created to provide its clients with the right security services.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceNeuilly-sur-seine, FranceHQ checked Sep 27, 202611-506 contacts →

Indirect evidence

“Pure-player du conseil en cybersécurité, gestion des risques IT et infrastructures, notre force se résume par la flexibilité et l’autonomie de notre structure au sein d’un groupe…”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidencePuteaux, FranceHQ checked Sep 27, 20261-106 contacts →

Partial evidence

“GEN & SIS, a consulting company dedicated to Cybersecurity, supports you in securing your information system through its services”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceLyon, FranceHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“L'Humain - L'Excellence - La Responsabilité En bâtissant notre cabinet, nous avons voulu le faire reposer sur ces 3 piliers, devenus les 3 valeurs clefs qui déterminent toutes nos…”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceMarseille, FranceHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“We Are Cyber est un cabinet de conseil pure-player du domaine de la cybersécurité.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceLieusaint, FranceHQ checked Sep 27, 202611-505 contacts →

Indirect evidence

“Uneeti est une société de prestations informatique cyber sécurisées depuis 2002.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 132 cpa firm network security providers based in France

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Cpa firm network security providers based in France at a glance

As of Sep 27, 2026
13.3%Verified-email coverage
17.2Average contacts per company
1-10Median size (employees)
25.8%Largest-city concentration · Paris
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
95
11-50
31
51-200
4
201-500
1
1,001-5,000
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 132 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 cpa firm network security providers, 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 “cpa firm network security providers”. 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 cpa firm network security providers), 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 cpa firm network security providers, 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, 303 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 27, 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.

Cpa firm network security providers 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 cpa firm network security providers, 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 cpa firm network security providers are there based in France?

RevenueBase identified 132 cpa firm network security providers 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?

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

Which city has the most cpa firm network security providers?

Paris leads with 34 headquartered companies, followed by Lyon (4) and Bordeaux (3).

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 303 verified decision-maker contacts tracked across these 132 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 27, 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.