Company lists · Data refreshed September 2026

Top 25 IT consultancy services based in France

Name: IT consultancy services based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 5,492 companies tracked

RevenueBase identified 5,492 IT consultancy services headquartered in France as of September 2026 and tracks 638,721 professional contacts across them, including 224,128 with verified work emails and 30,493 with mobile numbers. Paris is the largest hub.

This list covers IT consultancy 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 26, 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 26, 2026 86% judged on-target in blind review

5,492Companies

638,721Contacts tracked

224,128Verified emails

30,493Mobile numbers

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The 25 largest IT consultancy services based in France

Ranked by team size

Top 25 of 5,492 IT consultancy services based in France, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to IT consultancy 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Capgemini	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	10001+	284,286 contacts →
	Indirect evidence “Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value.” Source: RevenueBase Database · checked Sep 26, 2026
2	ATOS	Indirect evidence	95877 Bezons, FranceHQ checked Sep 26, 2026	10001+	82,557 contacts →
	Indirect evidence “Atos Group is a global leader in digital transformation with c.” Source: RevenueBase Database · checked Sep 26, 2026
3	Sopra Steria	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	10001+	36,960 contacts →
	Indirect evidence “Sopra Steria, a major Tech player in Europe with employees in nearly 30 countries, is recognised for its consulting, digital services and solutions.” Source: RevenueBase Database · checked Sep 26, 2026
4	Orange Business	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	10001+	25,395 contacts →
	Indirect evidence “In a world that never stands still, possibility is everywhere.” Source: RevenueBase Database · checked Sep 26, 2026
5	ALTEN	Indirect evidence	Boulogne-billancourt Cedex, FranceHQ checked Sep 26, 2026	10001+	17,044 contacts →
	Indirect evidence “ALTEN is committed to meeting the expectations of its stakeholders and anticipating their requirements in the fields of innovation, R&D, and technological information systems.” Source: RevenueBase Database · checked Sep 26, 2026
6	Devoteam	Indirect evidence	Levallois-perret, FranceHQ checked Sep 26, 2026	10001+	7,827 contacts →
	Indirect evidence “Devoteam is a AI-driven tech consulting firm specialised in cloud platforms, cyber, data, and sustainability.” Source: RevenueBase Database · checked Sep 26, 2026
7	Wavestone	Indirect evidence	100-101 Terrasse Boieldieu, FranceHQ checked Sep 26, 2026	1,001-5,000	6,190 contacts →
	Indirect evidence “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Source: RevenueBase Database · checked Sep 26, 2026
8	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	10001+	4,928 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 26, 2026
9	Axians	Indirect evidence	Nanterre Cedex, FranceHQ checked Sep 26, 2026	10001+	3,337 contacts →
	Indirect evidence “Axians is the ICT brand of VINCI Energies.” Source: RevenueBase Database · checked Sep 26, 2026
10	SIA	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	1,001-5,000	2,890 contacts →
	Indirect evidence “Sia is an next-generation global consulting group in strategy, artificial intelligence and management.” Source: RevenueBase Database · checked Sep 26, 2026
11	Scalian	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 26, 2026	5,001-10,000	2,860 contacts →
	Indirect evidence “Established in 1989, the Scalian Group has nearly employees in France and abroad.” Source: RevenueBase Database · checked Sep 26, 2026
12	AUBAY	Indirect evidence	Boulogne Billancourt, FranceHQ checked Sep 26, 2026	5,001-10,000	2,670 contacts →
	Indirect evidence “Present in 7 countries in Europe, Aubay has more than 7800 employees and has generated revenues of € 513,5 million in 2022, with year on year growth consistently.” Source: RevenueBase Database · checked Sep 26, 2026
13	GFI World	Indirect evidence	Saint-ouen, FranceHQ checked Sep 26, 2026	10001+	2,169 contacts →
	Indirect evidence “Gfi became Inetum in 2020.” Source: RevenueBase Database · checked Sep 26, 2026
14	Experis France	Partial evidence	Nantes, FranceHQ checked Sep 26, 2026	1,001-5,000	2,167 contacts →
	Partial evidence “Experis accompagne les DSI dans leurs projets de transformation digitale en déployant des solutions innovantes en matière de Services et de Talent IT afin de répondre aux besoins…” Source: RevenueBase Database · checked Sep 26, 2026
15	VISEO	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 26, 2026	1,001-5,000	1,989 contacts →
	Indirect evidence “VISEO is a global digital and business consulting company that assists its clients with their transformation journeys using advanced technology and industry expertise.” Source: RevenueBase Database · checked Sep 26, 2026
16	Keyrus	Indirect evidence	Levallois-perret, FranceHQ checked Sep 26, 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 26, 2026
17	Davidson Consulting	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 26, 2026	1,001-5,000	1,848 contacts →
	Indirect evidence “Founded in 2005, Davidson consulting is positioned as an actor in management consulting and technology expertise.” Source: RevenueBase Database · checked Sep 26, 2026
18	Infotel	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 26, 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 26, 2026
19	Mc2i	Partial evidence	Paris, FranceHQ checked Sep 26, 2026	1,001-5,000	1,668 contacts →
	Partial evidence “mc2i is an independent consultancy in Information System.” Source: RevenueBase Database · checked Sep 26, 2026
20	Prodware	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	1,001-5,000	1,394 contacts →
	Indirect evidence “At Prodware, we believe that Trust, Audacity, and Passion are the driving forces behind meaningful digital transformation.” Source: RevenueBase Database · checked Sep 26, 2026
21	SMILE	Indirect evidence	Asnières Sur Seine, FranceHQ checked Sep 26, 2026	1,001-5,000	1,352 contacts →
	Indirect evidence “We are Technology experts & Business partners.” Source: RevenueBase Database · checked Sep 26, 2026
22	Sofrecom	Indirect evidence	Châtillon, FranceHQ checked Sep 26, 2026	1,001-5,000	1,326 contacts →
	Indirect evidence “As a subsidiary of the Orange Group, Sofrecom advises, guides and supports the digital transformation and the green transition of the main telecommunications players : operators…” Source: RevenueBase Database · checked Sep 26, 2026
23	SCC France	Partial evidence	Nanterre, FranceHQ checked Sep 26, 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 26, 2026
24	CGI Business Consulting	Indirect evidence	Paris La Défense, FranceHQ checked Sep 26, 2026	10001+	1,270 contacts →
	Indirect evidence “Le numérique est une opportunité pour tous mais chaque secteur d’activité doit l’appréhender de manière unique.” Source: RevenueBase Database · checked Sep 26, 2026
25	NIJI	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 26, 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 26, 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: IT consultancy services. 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 IT consultancy services.
Partial evidence: Its own public description names part of IT consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT consultancy services. 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 5,492 IT consultancy services based in France

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IT consultancy services based in France at a glance

As of Sep 26, 2026

35.1%Verified-email coverage

4.8%Mobile-number coverage

116.3Average contacts per company

1-10Median size (employees)

27.6%Largest-city concentration · Paris

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

3,432

11-50

1,310

51-200

462

201-500

123

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 29.0d

136,0300–30

71,11131–60

3,80561–90

41990–180

12,763180+

Company record updated

Median 85.0d

00–30

101,87831–60

248,26761–90

249,39790–180

39,179180+

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 consultancy 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 consultancy 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 consultancy 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 consultancy 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, 224,128 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 26, 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.

IT consultancy services by metro

IT consultancy services in Paris1515
IT consultancy services in Lyon194
IT consultancy services in Toulouse103
IT consultancy services in Bordeaux71
IT consultancy services in Nantes70
IT consultancy services in Boulogne-Billancourt66
IT consultancy services in Lille58
IT consultancy services in Marseille55
IT consultancy services in Neuilly-Sur-Seine55
IT consultancy services in Courbevoie52
IT consultancy services in Puteaux46
IT consultancy services in Levallois-Perret40
IT consultancy services in Montpellier34
IT consultancy services in Nanterre31
IT consultancy services in Rennes31
IT consultancy services in Strasbourg30
IT consultancy services in Issy-Les-Moulineaux28
IT consultancy services in Boulogne Billancourt27
IT consultancy services in Villeurbanne25

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 consultancy 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 consultancy services are there based in France?

RevenueBase identified 5,492 IT consultancy 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?

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

Which city has the most IT consultancy services?

Paris leads with 1515 headquartered companies, followed by Lyon (194) and Toulouse (103).

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 224,128 verified decision-maker contacts tracked across these 5,492 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 26, 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.