Company lists · Data refreshed September 2026

Top 13 Digital system audit firms based in France

RevenueBase identified 45 digital system audit firms headquartered in France as of September 2026 and tracks 278 professional contacts across them, including 118 with verified work emails. Paris is the largest hub.

This list covers digital system audit 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 21, 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 21, 2026 86% judged on-target in blind review
45Companies
278Contacts tracked
118Verified emails
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The 13 largest digital system audit firms based in France

Ranked by team size
Top 13 of 45 digital system audit firms based in France, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to digital system audit 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 evidenceStrasbourg, FranceHQ checked Sep 21, 202651-20081 contacts →

Indirect evidence

“HARA Consulting est un groupe spécialisé dans la transformation numérique des entreprises par la mise en place d'outils IA, data et tech.+ 1⃣ 0⃣ 0⃣ Collaborateurs - Experts…”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceParis, FranceHQ checked Sep 21, 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 21, 2026
3Strong evidenceWambrechies, FranceHQ checked Sep 21, 202611-5027 contacts →

Strong evidence

“Nos offres de service - Audit et Conseils informatiques (gouvernance, sécurité & infrastructure)- Pilotage et Gestion de Système d'informations (DSI à temps partagé.)-…”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceLyon, FranceHQ checked Sep 21, 202611-5014 contacts →

Indirect evidence

“We support organisations of all sizes and across all sectors with - penetration testing on all types of targets (web and mobile apps, infrastructure, networks, cloud, IoT, etc.)-…”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceBordeaux, FranceHQ checked Sep 21, 20261-109 contacts →

Indirect evidence

“Cybersécurité et gestion informatique à Bordeaux En tant que dirigeant, vous êtes le premier rempart contre les sinistres cyber qui menacent la continuité de votre activité.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceMontrouge, FranceHQ checked Sep 21, 202611-508 contacts →

Indirect evidence

“CRYPT.ON IT est une société de service récente qui s’adresse à la fois aux organismes de certification, aux sociétés du domaine de la Cyber (société de services, éditeur de…”

Source: RevenueBase Database · checked Sep 21, 2026
7Strong evidenceParis, FranceHQ checked Sep 21, 20261-106 contacts →

Strong evidence

“Créé en 2002, Stelau Conseil est un cabinet d'audit et de conseil spécialisé dans la sécurité des systèmes d'information.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceCreully, FranceHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceParis, FranceHQ checked Sep 21, 202611-502 contacts →

Indirect evidence

“BMB ConsultX is a cybersecurity consulting firm.”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceParis, FranceHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Intelligent Audit est une Start-up informatique qui a vocation à accompagner la transformation numérique du métier de l'audit financier : analyse des données collectées…”

Source: RevenueBase Database · checked Sep 21, 2026
11Strong evidenceMontigny Le Bretonneux, FranceHQ checked Sep 21, 20261-102 contacts →

Strong evidence

“ALIAS NETWORK TECHNOLOGIES est une Entreprise de Services du Numérique (ESN) spécialisée dans l'audit, le conseil et l'infogérance des systèmes informatiques.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceParis, FranceHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“BPA AUDIT est la société de commissariat aux comptes du groupe BPA EXPERTS.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceToulouse, FranceHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“Fondée en 2021, Xpereos Consulting offre aux entreprises des prestations d’audit et de conseil avancées ainsi que des prestations d’intégrations de solutions, autour de la…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 13 of 45 digital system audit firms based in France

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Digital system audit firms based in France at a glance

As of Sep 21, 2026
42.4%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
26.7%Largest-city concentration · Paris
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
9
51-200
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 45 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 digital system audit 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 “digital system audit 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 digital system audit 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 digital system audit 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, 118 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 21, 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 digital system audit 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 digital system audit firms are there based in France?

RevenueBase identified 45 digital system audit 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?

Hara Consulting, headquartered in Strasbourg, tops this list with the largest team on record.

Which city has the most digital system audit firms?

Paris leads with 12 headquartered companies, followed by Lyon (3) and Bordeaux (2).

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 118 verified decision-maker contacts tracked across these 45 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 21, 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.