Company lists · Data refreshed September 2026

Top 25 Business IT consulting firms based in France

Name: Business IT consulting firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 3,921 companies tracked

RevenueBase identified 3,921 business IT consulting firms headquartered in France as of September 2026 and tracks 61,630 professional contacts across them, including 22,008 with verified work emails and 1,602 with mobile numbers. Paris is the largest hub.

This list covers business IT consulting 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 23, 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 23, 2026 86% judged on-target in blind review

3,921Companies

61,630Contacts tracked

22,008Verified emails

1,602Mobile numbers

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The 25 largest business IT consulting firms based in France

Ranked by team size

Top 25 of 3,921 business IT consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business IT consulting 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Wavestone	Partial evidence	100-101 Terrasse Boieldieu, FranceHQ checked Sep 23, 2026	1,001-5,000	6,190 contacts →
	Partial evidence “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Source: RevenueBase Database · checked Sep 23, 2026
2	Orange Cyberdefense	Indirect evidence	Nanterre, FranceHQ checked Sep 23, 2026	1,001-5,000	3,673 contacts →
	Indirect evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 23, 2026
3	GFI World	Indirect evidence	Saint-ouen, FranceHQ checked Sep 23, 2026	10001+	2,169 contacts →
	Indirect evidence “Gfi became Inetum in 2020.” Source: RevenueBase Database · checked Sep 23, 2026
4	Keyrus	Indirect evidence	Levallois-perret, FranceHQ checked Sep 23, 2026	1,001-5,000	1,964 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 23, 2026
5	Infotel	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 23, 2026	1,001-5,000	1,735 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 23, 2026
6	SCC France	Partial evidence	Nanterre, FranceHQ checked Sep 23, 2026	1,001-5,000	1,300 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 23, 2026
7	NIJI	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 23, 2026	1,001-5,000	1,256 contacts →
	Indirect evidence “Créée en septembre 2001, Niji est une société de conseil, de design et de mise en œuvre technologique, entièrement dédiée à la transformation numérique des entreprises et des…” Source: RevenueBase Database · checked Sep 23, 2026
8	COGEP	Indirect evidence	Saint-doulchard, FranceHQ checked Sep 23, 2026	1,001-5,000	1,051 contacts →
	Indirect evidence “Une vision augmentée du conseil au service de votre réussite.” Source: RevenueBase Database · checked Sep 23, 2026
9	Synchrone FR	Partial evidence	Paris, FranceHQ checked Sep 23, 2026	1,001-5,000	803 contacts →
	Partial evidence “Synchrone apporte son expertise en Consulting, Data Expertise et Digital Experience à ses clients grands comptes.” Source: RevenueBase Database · checked Sep 23, 2026
10	I-Tracing	Indirect evidence	Courbevoie, FranceHQ checked Sep 23, 2026	1,001-5,000	639 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 23, 2026
11	Exakis Nelite	Indirect evidence	Bidart, FranceHQ checked Sep 23, 2026	501-1,000	621 contacts →
	Indirect evidence “Exakis Nelite devient Magellan!” Source: RevenueBase Database · checked Sep 23, 2026
12	Klanik	Strong evidence	Marseille, FranceHQ checked Sep 23, 2026	501-1,000	585 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 23, 2026
13	Tenexa	Partial evidence	Roissy Cdg Cedex, FranceHQ checked Sep 23, 2026	1,001-5,000	551 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 23, 2026
14	DCS Easyware	Partial evidence	Lyon, FranceHQ checked Sep 23, 2026	1,001-5,000	532 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 23, 2026
15	GVA	Indirect evidence	Paris, FranceHQ checked Sep 23, 2026	51-200	499 contacts →
	Indirect evidence “Créé en 1975, GVA est composé de 80 personnes, pour près de 10 millions de chiffre d’affaires.” Source: RevenueBase Database · checked Sep 23, 2026
16	WE	Partial evidence	Issy Les Moulineaux, FranceHQ checked Sep 23, 2026	201-500	404 contacts →
	Partial evidence “We+ est un cabinet de conseil expert en IT, membre de l’écosystème Alan Allman Associates.” Source: RevenueBase Database · checked Sep 23, 2026
17	Metsys	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 23, 2026	501-1,000	397 contacts →
	Indirect evidence “Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Source: RevenueBase Database · checked Sep 23, 2026
18	Soft Computing	Indirect evidence	Paris, FranceHQ checked Sep 23, 2026	201-500	365 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 23, 2026
19	ITS Group S.A	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 23, 2026	1,001-5,000	342 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 23, 2026
20	Sqorus	Strong evidence	Paris, FranceHQ checked Sep 23, 2026	201-500	328 contacts →
	Strong evidence “SQORUS is a consulting firm specializing in the transformation of HR, Finance and IT functions.” Source: RevenueBase Database · checked Sep 23, 2026
21	Devoteam Microsoft Partner	Partial evidence	Levallois Perret, FranceHQ checked Sep 23, 2026	1,001-5,000	325 contacts →
	Partial evidence “Devoteam is a leading provider of Premium Microsoft Cloud Consulting and Managed services in EMEA.” Source: RevenueBase Database · checked Sep 23, 2026
22	Inside	Indirect evidence	Toulouse, FranceHQ checked Sep 23, 2026	201-500	313 contacts →
	Indirect evidence “Inside est une société de conseil et de services numériques qui simplifie et accélère la transformation des entreprises, de la stratégie à la mise en œuvre, avec un objectif clair…” Source: RevenueBase Database · checked Sep 23, 2026
23	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 23, 2026	201-500	279 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 23, 2026
24	Parthena Consultant	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 23, 2026	201-500	260 contacts →
	Indirect evidence “Secteur : Conseil Intégrateur de solutions de gestion (Comptabilité, Gestion commerciale, Paie, CRM, Gestion d'affaires.), SAGE Ligne 100, SAGE Ligne Prestations allant de…” Source: RevenueBase Database · checked Sep 23, 2026
25	Adecia	Indirect evidence	La Roche Sur Yon Cedex, FranceHQ checked Sep 23, 2026	201-500	258 contacts →
	Indirect evidence “Le groupe de conseil ADECIA, spécialisé dans l’accompagnement du dirigeant, accompagne les dirigeants et les entreprises, de toutes tailles et de tous secteurs, dans le…” Source: RevenueBase Database · checked Sep 23, 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: business IT consulting firms. 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 business IT consulting firms.
Partial evidence: Its own public description names part of business IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business IT consulting firms. 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 3,921 business IT consulting firms based in France

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Business IT consulting firms based in France at a glance

As of Sep 23, 2026

35.7%Verified-email coverage

2.6%Mobile-number coverage

15.7Average contacts per company

1-10Median size (employees)

25.7%Largest-city concentration · Paris

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

2,919

11-50

706

51-200

186

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 25.0d

16,9200–30

4,70131–60

27761–90

690–180

104180+

Company record updated

Median 76.0d

00–30

22,97831–60

24,76761–90

10,62890–180

3,257180+

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 business IT consulting 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 “business IT consulting 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 business IT consulting 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 business IT consulting 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, 22,008 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 23, 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.

Business IT consulting firms by metro

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 business IT consulting 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 business IT consulting firms are there based in France?

RevenueBase identified 3,921 business IT consulting 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?

Wavestone, headquartered in La Defense, tops this list with the largest team on record.

Which city has the most business IT consulting firms?

Paris leads with 1006 headquartered companies, followed by Lyon (128) and Toulouse (62).

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 22,008 verified decision-maker contacts tracked across these 3,921 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 23, 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.