Company lists · Data refreshed September 2026

Top 25 Federal IT consulting services based in France

RevenueBase identified 1,302 federal IT consulting services headquartered in France as of September 2026 and tracks 29,768 professional contacts across them, including 8,418 with verified work emails. Paris is the largest hub.

This list covers federal 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 28, 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 28, 2026 86% judged on-target in blind review
1,302Companies
29,768Contacts tracked
8,418Verified emails
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The 25 largest federal IT consulting services based in France

Ranked by team size
Top 25 of 1,302 federal IT consulting services based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to federal 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 evidenceSaint-ouen, FranceHQ checked Sep 28, 202610001+2,169 contacts →

Indirect evidence

“Gfi became Inetum in 2020.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceLevallois-perret, FranceHQ checked Sep 28, 20261,001-5,0001,964 contacts →

Indirect evidence

“At Keyrus, we help organizations move from experimental AI to industrialized AI, from isolated agents to orchestrated systems, and from insight to execution.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceNanterre, FranceHQ checked Sep 28, 20261,001-5,0001,300 contacts →

Partial evidence

“SCC France unleashes the potential of IT for global businesses, as one of Europe’s largest independent IT groups.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceCourbevoie, FranceHQ checked Sep 28, 20261,001-5,000844 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 28, 2026
5Indirect evidenceCourbevoie, FranceHQ checked Sep 28, 20261,001-5,000639 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 28, 2026
6Indirect evidenceBidart, FranceHQ checked Sep 28, 2026501-1,000621 contacts →

Indirect evidence

“Exakis Nelite devient Magellan!”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceMarseille, FranceHQ checked Sep 28, 2026501-1,000585 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 28, 2026
8Partial evidenceRoissy Cdg Cedex, FranceHQ checked Sep 28, 20261,001-5,000551 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 28, 2026
9Partial evidenceLyon, FranceHQ checked Sep 28, 20261,001-5,000532 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 28, 2026
10Indirect evidenceParis, FranceHQ checked Sep 28, 202651-200506 contacts →

Indirect 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 28, 2026
11Partial evidenceIssy Les Moulineaux, FranceHQ checked Sep 28, 2026201-500404 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceBoulogne-billancourt, FranceHQ checked Sep 28, 2026501-1,000397 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceBoulogne-billancourt, FranceHQ checked Sep 28, 20261,001-5,000342 contacts →

Indirect evidence

“For over 20 years, ITS Group has supported companies in their digital transformation projects thanks to the strength of its specialized areas of expertise.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceLevallois-perret, FranceHQ checked Sep 28, 202610001+338 contacts →

Indirect evidence

“Devoteam Cyber Trust is the cybersecurity specialist arm of the Devoteam Group.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceParis, FranceHQ checked Sep 28, 2026201-500279 contacts →

Indirect evidence

“Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceParis, FranceHQ checked Sep 28, 2026201-500174 contacts →

Strong evidence

“More than a simple IT consulting group, MARGO is an alchemy of talents with constantly enriched expertise, always encouraged to be dynamic and to flourish.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceMontpellier, FranceHQ checked Sep 28, 202651-200169 contacts →

Indirect evidence

“Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceParis, FranceHQ checked Sep 28, 2026201-500167 contacts →

Partial evidence

“NORGAY IT services, la proximité au cœur de votre transformation digitale NORGAY IT Services est une entreprise de services numériques (ESN), implantée sur Brest, Nantes, Paris…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceParis, FranceHQ checked Sep 28, 2026201-500144 contacts →

Indirect evidence

“Transformer le changement en opportunités!”

Source: RevenueBase Database · checked Sep 28, 2026
20Strong evidenceParis, FranceHQ checked Sep 28, 202651-200136 contacts →

Strong evidence

“IT Consulting focused on Finance, Banking and Insurance, CyberSecurity, Project Management, digital solutions and Big Data.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceRennes, FranceHQ checked Sep 28, 202611-50133 contacts →

Indirect evidence

“Dans un monde où tout s’accélère, la transformation numérique n’est plus une option : c’est un levier de compétitivité.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceLabège, FranceHQ checked Sep 28, 202651-200132 contacts →

Indirect evidence

“Labsoft SSII accompagne des grands comptes régionaux et national ainsi que des PME PMI.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceParis, FranceHQ checked Sep 28, 202651-200131 contacts →

Partial evidence

“ITEC est une Entreprise de Services Numériques fondée en 2015 qui accompagne les organisations et les institutions dans leur quotidien et leurs transformations IT.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceIsneauville, FranceHQ checked Sep 28, 2026501-1,000130 contacts →

Indirect evidence

“Le respect, la solidarité, l’éthique et la convivialité constituent le socle de nos valeurs.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceAubiere, FranceHQ checked Sep 28, 202651-200122 contacts →

Indirect evidence

“Avec plus de 155 experts, Abicom Groupe OCI est le partenaire informatique de tous les professionnels.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,302 federal IT consulting services based in France

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Federal IT consulting services based in France at a glance

As of Sep 28, 2026
28.3%Verified-email coverage
22.9Average contacts per company
1-10Median size (employees)
23.2%Largest-city concentration · Paris
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
803
11-50
354
51-200
102
201-500
20
501-1,000
7
1,001-5,000
10
5,001-10,000
2
10001+
4

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 1,302 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 federal 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 “federal 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 federal 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 federal 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, 8,418 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 28, 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 federal 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 federal IT consulting services are there based in France?

RevenueBase identified 1,302 federal 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?

GFI World, headquartered in Saint-Ouen, tops this list with the largest team on record.

Which city has the most federal IT consulting services?

Paris leads with 302 headquartered companies, followed by Lyon (37) and Boulogne-Billancourt (18).

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 8,418 verified decision-maker contacts tracked across these 1,302 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 28, 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.