Company lists · Data refreshed September 2026

Top 25 Accounting firm cybersecurity companies based in France

Name: Accounting firm cybersecurity companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 307 companies tracked

RevenueBase identified 307 accounting firm cybersecurity companies headquartered in France as of September 2026 and tracks 4,343 professional contacts across them, including 1,513 with verified work emails. Paris is the largest hub.

This list covers accounting firm cybersecurity 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 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

307Companies

4,343Contacts tracked

1,513Verified emails

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The 25 largest accounting firm cybersecurity companies based in France

Ranked by team size

Top 25 of 307 accounting firm cybersecurity companies 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 accounting firm cybersecurity 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	I-Tracing	Partial evidence	Courbevoie, FranceHQ checked Sep 27, 2026	1,001-5,000	639 contacts →
	Partial 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 27, 2026
2	own.security	Partial evidence	Paris, FranceHQ checked Sep 27, 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 27, 2026
3	ADNOV	Indirect evidence	Venelles, FranceHQ checked Sep 27, 2026	201-500	139 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
4	Evabssi	Partial evidence	Paris, FranceHQ checked Sep 27, 2026	201-500	117 contacts →
	Partial evidence “EvaBssi is an international consulting firm specialized in cybersecurity and IS performance.” Source: RevenueBase Database · checked Sep 27, 2026
5	ASKIL	Indirect evidence	Colombelles, FranceHQ checked Sep 27, 2026	51-200	102 contacts →
	Indirect evidence “ASKIL est un cabinet indépendant d’audit, d’expertise comptable, de conseil et d’avocats présent historiquement en Normandie et en Ile de France.” Source: RevenueBase Database · checked Sep 27, 2026
6	CS In Cybersecurity	Indirect evidence	Le Plessis-robinson, FranceHQ checked Sep 27, 2026	51-200	75 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
7	Cyberlift	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	51-200	56 contacts →
	Indirect evidence “Cyberlift, l'excellence et l'engagement, au service de votre cybersécurité.” Source: RevenueBase Database · checked Sep 27, 2026
8	Dcit Conseil	Indirect evidence	Sene, FranceHQ checked Sep 27, 2026	n/a	47 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
9	Cogefi	Partial evidence	Villeneuve D'ascq, FranceHQ checked Sep 27, 2026	11-50	45 contacts →
	Partial evidence “COGEFI is an independent accounting and audit firm located in Villeneuve d'Ascq near to Lille (North of France).” Source: RevenueBase Database · checked Sep 27, 2026
10	FOX Audit	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	11-50	44 contacts →
	Indirect evidence “FOX AUDIT est un cabinet pluridisciplinaire regroupant 40 collaborateurs implanté à Paris, Nantes et Nice intervenant sur des missions d’audit légal, d’expertise comptable et…” Source: RevenueBase Database · checked Sep 27, 2026
11	Adenis	Indirect evidence	Bagnolet, FranceHQ checked Sep 27, 2026	51-200	42 contacts →
	Indirect evidence “Les entreprises qui domineront leur marché dans les dix prochaines années auront toutes un point commun : un système d'information devenu un avantage stratégique.” Source: RevenueBase Database · checked Sep 27, 2026
12	Ornisec	Indirect evidence	Rennes, FranceHQ checked Sep 27, 2026	11-50	40 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
13	Exaurev	Indirect evidence	St Chamond, FranceHQ checked Sep 27, 2026	11-50	39 contacts →
	Indirect evidence “Nos cabinets d'expertise comptable et de commissariat aux comptes vous accueillent avec une équipe dynamique composée de 7 associés Experts-comptables et Commissaires aux Comptes…” Source: RevenueBase Database · checked Sep 27, 2026
14	Digitemis	Indirect evidence	Rezé, FranceHQ checked Sep 27, 2026	11-50	37 contacts →
	Indirect evidence “Digitemis est expert dans le conseil en cybersécurité et protection des données personnelles.” Source: RevenueBase Database · checked Sep 27, 2026
15	AJC Cabinet D'expertise Comptable ET DE Commissariat AUX Comptes À Bordeaux	Indirect evidence	FranceHQ checked Sep 27, 2026	11-50	36 contacts →
	Indirect evidence “Cabinet créé en 2014; 2 associés; 2 collaborateurs en 2015, 14 en 2020, 30 en 2023.” Source: RevenueBase Database · checked Sep 27, 2026
16	Excube	Indirect evidence	Lyon, FranceHQ checked Sep 27, 2026	11-50	33 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
17	ACG Cybersecurity	Partial evidence	Paris, FranceHQ checked Sep 27, 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 27, 2026
18	Randorisec	Partial evidence	Paris, FranceHQ checked Sep 27, 2026	11-50	32 contacts →
	Partial evidence “Cybersecurity company founded by security experts providing the following services: Security audits, Vulnerability research, SecOps, SecArch and Trainings” Source: RevenueBase Database · checked Sep 27, 2026
19	Sec-It	Indirect evidence	Levallois-perret, FranceHQ checked Sep 27, 2026	11-50	27 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
20	Cabinet Assistance ET Conseil	Indirect evidence	Bourges, FranceHQ checked Sep 27, 2026	11-50	25 contacts →
	Indirect evidence “Le Cabinet Assistance et Conseil est une société d'expertise-comptable et de commissariat aux comptes implantée dans le département du Cher et intervenant sur diverses villes de…” Source: RevenueBase Database · checked Sep 27, 2026
21	Five Nines	Indirect evidence	Paris, FranceHQ checked Sep 27, 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 27, 2026
22	Cyberdian Groupe	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	11-50	25 contacts →
	Indirect evidence “Créé en janvier 2017, Cyberdian est un cabinet de conseil en cybersécurité spécialisé dans l'accompagnement, l'analyse des risques, la stratégie et la mise en œuvre des moyens…” Source: RevenueBase Database · checked Sep 27, 2026
23	Becycure	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	11-50	23 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
24	RBA Groupe	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	11-50	22 contacts →
	Indirect evidence “Fondé en 1970, RBA est un cabinet d’expertise-comptable et de commissariat aux comptes.” Source: RevenueBase Database · checked Sep 27, 2026
25	WLF	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	11-50	21 contacts →
	Indirect evidence “Conseil en Cybersécurité : Stratégie, Gouvernance, Conformité, Audit et Gestion de crise” Source: RevenueBase Database · checked Sep 27, 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: accounting firm cybersecurity 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 accounting firm cybersecurity companies.
Partial evidence: Its own public description names part of accounting firm cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting firm cybersecurity 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 307 accounting firm cybersecurity companies based in France

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Accounting firm cybersecurity companies based in France at a glance

As of Sep 27, 2026

34.8%Verified-email coverage

14.1Average contacts per company

1-10Median size (employees)

26.1%Largest-city concentration · Paris

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

202

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 307 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 accounting firm cybersecurity 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 “accounting firm cybersecurity 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 accounting firm cybersecurity 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 accounting firm cybersecurity 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, 1,513 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.

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 accounting firm cybersecurity 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 accounting firm cybersecurity companies are there based in France?

RevenueBase identified 307 accounting firm cybersecurity 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?

I-Tracing, headquartered in Courbevoie, tops this list with the largest team on record.

Which city has the most accounting firm cybersecurity companies?

Paris leads with 80 headquartered companies, followed by Lyon (10) and Courbevoie (6).

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 1,513 verified decision-maker contacts tracked across these 307 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.