Company lists · Data refreshed September 2026

Top 20 Cpa firm cybersecurity services based in Paris, France

RevenueBase identified 48 cpa firm cybersecurity services headquartered in Paris, France as of September 2026 and tracks 410 professional contacts across them, including 125 with verified work emails. Across France, Paris is the largest hub for this category.

This list covers cpa firm cybersecurity services headquartered in Paris, 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
48Companies
410Contacts tracked
125Verified emails
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The 20 largest cpa firm cybersecurity services based in Paris, France

Ranked by team size
Top 20 of 48 cpa firm cybersecurity services based in Paris, 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 cybersecurity services: 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
1Partial evidenceParis, FranceHQ checked Sep 27, 2026201-500117 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceParis, FranceHQ checked Sep 27, 202651-20056 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceParis, FranceHQ checked Sep 27, 202611-5033 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
4Indirect evidenceParis, FranceHQ checked Sep 27, 202611-5021 contacts →

Indirect evidence

“Conseil en Cybersécurité : Stratégie, Gouvernance, Conformité, Audit et Gestion de crise”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceParis, FranceHQ checked Sep 27, 202651-20021 contacts →

Partial evidence

“As the main independent provider of cybersecurity and risk management consulting and technical expertise, Harmonie Technologie partners with key accounts (mainly from CAC40 and…”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceParis, FranceHQ checked Sep 27, 202611-5010 contacts →

Partial evidence

“Our services- Pentest / cybersecurity audit - Red Team as a Service - CISO as a Service - Risk Assessment”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect 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
8Indirect evidenceParis, FranceHQ checked Sep 27, 20261-1010 contacts →

Indirect evidence

“Startup, VSE and SME specialists, at Cyber Experts, we build a solid digital rampart for your company, allowing it to strengthen itself against cyber attackers.”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceParis, FranceHQ checked Sep 27, 202611-507 contacts →

Indirect evidence

“BlackBart est un cabinet de conseil en cybersécurité accompagnant les organisations publiques et privées dans la sécurisation de leurs environnements numériques et la maîtrise de…”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceParis, FranceHQ checked Sep 27, 202651-2007 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceParis, FranceHQ checked Sep 27, 202611-505 contacts →

Indirect evidence

“Leviam est un cabinet de conseil spécialisé dans la cybersécurité.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceParis, FranceHQ checked Sep 27, 202611-504 contacts →

Indirect evidence

“Fondé et opérationnel depuis septembre 2023, PSSWRD est un cabinet de conseil pure-player en cybersécurité, réunissant des femmes et des hommes engagés autour de valeurs fortes …”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceParis, FranceHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

“WELAN est une société de conseil en cybersécurité qui accompagne les entreprises de toutes tailles désireuses de se protéger contre les menaces numériques croissantes.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceParis, FranceHQ checked Sep 27, 202611-504 contacts →

Indirect evidence

“Never in history has technological progress rushed as in the last 10 years.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceParis, FranceHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

“CySAFE Consulting est un cabinet de conseil spécialisé en cybersécurité et management des risques qui accompagne les grandes, comme les petites entreprises, ainsi que les…”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceParis, FranceHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

“MA Cyber vous accompagne dans la sécurisation de votre système d'information.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceParis, FranceHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

“Fondé en 2017, CAEIRUS est un cabinet d'expertise spécialisé en cybersécurité qui accompagne les entreprises à répondre aux problématiques sécurité au sein de leur système…”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceParis, FranceHQ checked Sep 27, 202611-502 contacts →

Partial evidence

“BMB ConsultX is a cybersecurity consulting firm.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceParis, FranceHQ checked Sep 27, 20261-102 contacts →

Indirect evidence

“PYGMALION-IT est un cabinet de conseil en cybersécurité.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceParis, FranceHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“Cendium cyberdefense est un cabinet de conseil en cybersécurité faisant appel à des experts indépendants en sécurité informatique et protection des données.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 20 of 48 cpa firm cybersecurity services based in Paris, France

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Cpa firm cybersecurity services based in Paris, France at a glance

As of Sep 27, 2026
30.5%Verified-email coverage
8.5Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
14
51-200
5
201-500
1

Email recency for this list is measured across the whole France list rather than for Paris, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 48 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 cybersecurity services, 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 Paris, France whose own description of what they do matches “cpa firm cybersecurity services”. 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 cybersecurity services), 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 cybersecurity services, and records with no verified work email. Companies headquartered outside Paris 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, 125 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 cpa firm cybersecurity services, 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 cybersecurity services are there based in Paris, France?

RevenueBase identified 48 cpa firm cybersecurity services headquartered in Paris, 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?

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

Which city in France has the most cpa firm cybersecurity services?

Paris leads France with 48 headquartered companies, followed by Lyon (6) and Marseille (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 125 verified decision-maker contacts tracked across these 48 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.