Company lists · Data refreshed September 2026

Top 24 IT consulting services based in France

RevenueBase identified 4,748 IT consulting services headquartered in France as of September 2026 and tracks 97,115 professional contacts across them, including 31,335 with verified work emails and 3,763 with mobile numbers. Paris is the largest hub.

This list covers IT consulting services 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 4, 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 4, 2026 86% judged on-target in blind review
4,748Companies
97,115Contacts tracked
31,335Verified emails
3,763Mobile numbers
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The 24 largest IT consulting services based in France

Ranked by team size
Top 24 of 4,748 IT consulting services based in France, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to IT consulting 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
1Indirect evidenceParis, FranceHQ checked Sep 4, 202610001+4,992 contacts →

Indirect evidence

“Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…”

Source: RevenueBase Database · checked Sep 4, 2026
2Indirect evidenceNeuilly-sur-seine, FranceHQ checked Sep 4, 20261,001-5,0001,764 contacts →

Indirect evidence

“Infotel accompagne les directions Informatiques et Métiers des grandes entreprises depuis 45 ans (Airbus, Air France, PSA, BNP Paribas, Banque de France ou encore BPCE, etc.).”

Source: RevenueBase Database · checked Sep 4, 2026
3Indirect evidenceFranceHQ checked Sep 4, 20261,001-5,0001,672 contacts →

Indirect evidence

“mc2i is an independent consultancy in Information System.”

Source: RevenueBase Database · checked Sep 4, 2026
4Strong evidenceVilleurbanne, FranceHQ checked Sep 4, 20261,001-5,0001,458 contacts →

Strong evidence

“SOLUTEC: An IT Services Company SOLUTEC is an IT services company specialized in engineering, consulting and services.”

Source: RevenueBase Database · checked Sep 4, 2026
5Indirect evidenceSèvres Cedex, FranceHQ checked Sep 4, 20265,001-10,0001,062 contacts →

Indirect evidence

“The story of AUSY by Randstad started in France in 1989.”

Source: RevenueBase Database · checked Sep 4, 2026
6Strong evidenceBoulogne-billancourt, FranceHQ checked Sep 4, 20261,001-5,000840 contacts →

Strong evidence

“Viveris is a consulting and engineering company with two main activities - IT consulting.”

Source: RevenueBase Database · checked Sep 4, 2026
7Indirect evidenceCourbevoie, FranceHQ checked Sep 4, 20261,001-5,000837 contacts →

Indirect evidence

“You will be part of ACENSI network: 1650 co-workers involved in IS transformation projects at our clients through our multisectoral expertise.”

Source: RevenueBase Database · checked Sep 4, 2026
8Partial evidenceParis, FranceHQ checked Sep 4, 20261,001-5,000803 contacts →

Partial evidence

“Synchrone apporte son expertise en Consulting, Data Expertise et Digital Experience à ses clients grands comptes.”

Source: RevenueBase Database · checked Sep 4, 2026
9Partial evidenceLevallois-perret, FranceHQ checked Sep 4, 20261,001-5,000792 contacts →

Partial evidence

“An international consulting group specialized in corporate transformation through Data, MICROPOLE partners its clients through a global approach: ‘Data Driven‘ Strategy, Cloud…”

Source: RevenueBase Database · checked Sep 4, 2026
10Indirect evidenceLyon, FranceHQ checked Sep 4, 20261,001-5,000756 contacts →

Indirect evidence

“Through innovation and digitalisation, Visiativ delivers smarter ways of working that help businesses become more agile, efficient and collaborative.”

Source: RevenueBase Database · checked Sep 4, 2026
11Indirect evidenceLevallois-Perret, FranceHQ checked Sep 4, 20261,001-5,000716 contacts →

Indirect evidence

“Le Groupe INTM est une société de conseil et de services en ingénierie numérique, dont le positionnement s'inscrit depuis plusieurs années dans une volonté de proximité, d'écoute…”

Source: RevenueBase Database · checked Sep 4, 2026
12Indirect evidenceCourbevoie, FranceHQ checked Sep 4, 20261,001-5,000643 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 4, 2026
13Indirect evidenceBidart, FranceHQ checked Sep 4, 2026501-1,000628 contacts →

Indirect evidence

“Exakis Nelite devient Magellan!”

Source: RevenueBase Database · checked Sep 4, 2026
14Strong evidenceMarseille, FranceHQ checked Sep 4, 2026501-1,000594 contacts →

Strong evidence

“KLANIK is a consulting company specialized in IT Engineering which accompanies its partners in their digital and technological projects.”

Source: RevenueBase Database · checked Sep 4, 2026
15Partial evidenceNeuilly Sur Seine, FranceHQ checked Sep 4, 2026501-1,000557 contacts →

Partial evidence

“julhiet sterwen is a key player in management, human resources and operational consulting.”

Source: RevenueBase Database · checked Sep 4, 2026
16Partial evidenceFranceHQ checked Sep 4, 20261,001-5,000554 contacts →

Partial evidence

“Fondée en 1985, Tenexa est une Entreprise de services du numérique (ESN), Le groupe Tenexa est composé de deux filiales (Infodis IT, & Prolival) et se positionne résolument vers…”

Source: RevenueBase Database · checked Sep 4, 2026
17Partial evidenceLyon, FranceHQ checked Sep 4, 20261,001-5,000535 contacts →

Partial evidence

“Filiale du Groupe SYNERGIE, DCS SYNERGIE GROUP capitalise sur son histoire pour accompagner chaque jour les enjeux IT de ses clients.”

Source: RevenueBase Database · checked Sep 4, 2026
18Strong evidenceParis, FranceHQ checked Sep 4, 2026501-1,000430 contacts →

Strong evidence

“Zenika is an IT consulting firm with 550 employees that helps companies with their digital transformation.”

Source: RevenueBase Database · checked Sep 4, 2026
19Partial evidenceBoulogne-billancourt, FranceHQ checked Sep 4, 20261,001-5,000415 contacts →

Partial evidence

“Digital transformation company, business and technology consulting, Audensiel supports its clients in all business sectors in France and abroad in the following areas- Digital…”

Source: RevenueBase Database · checked Sep 4, 2026
20Indirect evidenceBoulogne-billancourt, FranceHQ checked Sep 4, 2026501-1,000408 contacts →

Indirect evidence

“Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.”

Source: RevenueBase Database · checked Sep 4, 2026
21Partial evidenceIssy Les Moulineaux, FranceHQ checked Sep 4, 2026201-500402 contacts →

Partial evidence

“We+ est un cabinet de conseil expert en IT, membre de l’écosystème Alan Allman Associates.”

Source: RevenueBase Database · checked Sep 4, 2026
22Strong evidenceParis, FranceHQ checked Sep 4, 2026501-1,000394 contacts →

Strong evidence

“Objectware Group is an IT Services Company (or ESN: Entreprise de Services du Numérique), founded in and dedicated to consulting and IT system engineering.”

Source: RevenueBase Database · checked Sep 4, 2026
23Indirect evidenceSaint-herblain, FranceHQ checked Sep 4, 2026201-500388 contacts →

Indirect evidence

“Conserto, jeune société innovante et dynamique, propose des prestations de conseil et d’expertise informatique : Nous avons 3 domaines d'expertise - Cloud - Digital - Embedded Et…”

Source: RevenueBase Database · checked Sep 4, 2026
24Indirect evidenceParis, FranceHQ checked Sep 4, 2026201-500367 contacts →

Indirect evidence

“Soft Computing est une société de conseil et de services spécialisée en Gestion de la Relation Client (CRM), Pilotage de la Performance (Business Intelligence) et e-Business.”

Source: RevenueBase Database · checked Sep 4, 2026

Showing 24 of 4,748 IT consulting services based in France

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IT consulting services based in France at a glance

As of Sep 4, 2026
32.3%Verified-email coverage
3.9%Mobile-number coverage
20.5Average contacts per company
1-10Median size (employees)
24.8%Largest-city concentration · Paris
Sep 4, 2026Page data refreshed

Companies by employee count

1-10
3,155
11-50
1,033
51-200
331
201-500
77
501-1,000
30
1,001-5,000
37
5,001-10,000
6
10001+
3

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 IT consulting 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 France whose own description of what they do matches “IT consulting 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 IT consulting 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 IT consulting services, 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, 31,335 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 4, 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 IT consulting 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 IT consulting services are there based in France?

RevenueBase identified 4,748 IT consulting services 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?

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

Which city has the most IT consulting services?

Paris leads with 1179 headquartered companies, followed by Lyon (178) and Toulouse (77).

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 31,335 verified decision-maker contacts tracked across these 4,748 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 4, 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.