Company lists · Data refreshed September 2026

Top 25 IT professional services companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 2,975 companies tracked

RevenueBase identified 2,975 IT professional services companies headquartered in France as of September 2026 and tracks 59,781 professional contacts across them, including 19,055 with verified work emails and 1,441 with mobile numbers. Paris is the largest hub.

This list covers IT professional services companies 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 27, 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 27, 2026 86% judged on-target in blind review

2,975Companies

59,781Contacts tracked

19,055Verified emails

1,441Mobile numbers

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The 25 largest IT professional services companies based in France

Ranked by team size

Top 25 of 2,975 IT professional services companies based in France, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to IT professional services companies: 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	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 27, 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 27, 2026
2	AUBAY	Indirect evidence	Boulogne Billancourt, FranceHQ checked Sep 27, 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 27, 2026
3	GFI World	Indirect evidence	Saint-ouen, FranceHQ checked Sep 27, 2026	10001+	2,169 contacts →
	Indirect evidence “Gfi became Inetum in 2020.” Source: RevenueBase Database · checked Sep 27, 2026
4	Keyrus	Indirect evidence	Levallois-perret, FranceHQ checked Sep 27, 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 27, 2026
5	Infotel	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 27, 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 27, 2026
6	Solutec	Partial evidence	Villeurbanne, FranceHQ checked Sep 27, 2026	1,001-5,000	1,459 contacts →
	Partial evidence “SOLUTEC: An IT Services Company SOLUTEC is an IT services company specialized in engineering, consulting and services.” Source: RevenueBase Database · checked Sep 27, 2026
7	Prodware	Indirect evidence	Paris, FranceHQ checked Sep 27, 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 27, 2026
8	Hardis Group	Partial evidence	Seyssinet-pariset, FranceHQ checked Sep 27, 2026	1,001-5,000	1,132 contacts →
	Partial evidence “Hardis Group is a consulting and IT services company, a Salesforce pure player through its subsidiary Cloudity, and the vendor of the Reflex logistics software suite.” Source: RevenueBase Database · checked Sep 27, 2026
9	COGEP	Indirect evidence	Saint-doulchard, FranceHQ checked Sep 27, 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 27, 2026
10	NRC	Indirect evidence	Sainghin En Mélantois, FranceHQ checked Sep 27, 2026	n/a	969 contacts →
	Indirect evidence “NRC, créée en 1997, est un intégrateur informatique, spécialisé dans l’intégration de solutions de gestion pour les PME et est devenue un acteur de référence dans le déploiement…” Source: RevenueBase Database · checked Sep 27, 2026
11	Viveris	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 27, 2026	1,001-5,000	833 contacts →
	Partial evidence “Viveris is a consulting and engineering company with two main activities - IT consulting.” Source: RevenueBase Database · checked Sep 27, 2026
12	Groupe Intm	Indirect evidence	Levallois-perret, FranceHQ checked Sep 27, 2026	1,001-5,000	714 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 27, 2026
13	Softeam	Indirect evidence	Courbevoie, FranceHQ checked Sep 27, 2026	1,001-5,000	705 contacts →
	Indirect evidence “Softeam is the Consulting and Services brand of Docaposte.” Source: RevenueBase Database · checked Sep 27, 2026
14	DCS Easyware	Partial evidence	Lyon, FranceHQ checked Sep 27, 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 27, 2026
15	Delaware France	Indirect evidence	Villeurbanne, FranceHQ checked Sep 27, 2026	1,001-5,000	412 contacts →
	Indirect evidence “Intégrateur de solutions innovantes & technologiques, reconnu sur le marché français et à l’international, nous venons en aide aux entreprises dans l’utilisation quotidienne de…” Source: RevenueBase Database · checked Sep 27, 2026
16	WE	Partial evidence	Issy Les Moulineaux, FranceHQ checked Sep 27, 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 27, 2026
17	Objectware	Partial evidence	Paris, FranceHQ checked Sep 27, 2026	501-1,000	395 contacts →
	Partial 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 27, 2026
18	Ataway	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	201-500	394 contacts →
	Indirect evidence “Ataway is a global consulting company supporting organizations across industries, with over 25 years of experience and presence in more than 23 countries.” Source: RevenueBase Database · checked Sep 27, 2026
19	Conserto	Indirect evidence	Saint-herblain, FranceHQ checked Sep 27, 2026	201-500	378 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 27, 2026
20	Soft Computing	Indirect evidence	Paris, FranceHQ checked Sep 27, 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 27, 2026
21	Hexaware	Indirect evidence	Versailles, FranceHQ checked Sep 27, 2026	n/a	355 contacts →
	Indirect evidence “Forte de compétences consolidées autour d'un réseau de partenaires fidélisés depuis plus de 15 ans, HexaWare vous accompagne dans l'évolution permanente de votre système…” Source: RevenueBase Database · checked Sep 27, 2026
22	ITS Group S.A	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 27, 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 27, 2026
23	Infogene	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 27, 2026	501-1,000	291 contacts →
	Indirect evidence “INFOGENE est une ESN spécialisée dans 3 domaines principaux (en AMOA et MOE): DIGITAL: Notre savoir faire : Conseil, architecture logiciel, conception, développement, maintenance…” Source: RevenueBase Database · checked Sep 27, 2026
24	SEA TPI	Indirect evidence	La Ciotat, FranceHQ checked Sep 27, 2026	201-500	290 contacts →
	Indirect evidence “SEA TPI est une ESN de 450 personnes spécialisée dans les domaines des opérations informatiques.” Source: RevenueBase Database · checked Sep 27, 2026
25	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 27, 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 27, 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 professional services companies. 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 professional services companies.
Partial evidence: Its own public description names part of IT professional services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT professional services companies. 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 2,975 IT professional services companies based in France

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IT professional services companies based in France at a glance

As of Sep 27, 2026

31.9%Verified-email coverage

2.4%Mobile-number coverage

20.1Average contacts per company

1-10Median size (employees)

20.0%Largest-city concentration · Paris

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

1,881

11-50

738

51-200

238

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 29.0d

11,2600–30

7,22531–60

49761–90

690–180

67180+

Company record updated

Median 86.0d

00–30

13,30231–60

21,79261–90

21,63790–180

3,050180+

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 professional services companies, 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 professional services companies”. 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 professional services companies), 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 professional services companies, 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, 19,055 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 27, 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 professional services companies by metro

IT professional services companies in Paris596
IT professional services companies in Lyon93
IT professional services companies in Toulouse50
IT professional services companies in Boulogne-Billancourt31
IT professional services companies in Marseille31
IT professional services companies in Lille27

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 professional services companies, 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 professional services companies are there based in France?

RevenueBase identified 2,975 IT professional services companies 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 professional services companies?

Paris leads with 596 headquartered companies, followed by Lyon (93) and Toulouse (50).

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 19,055 verified decision-maker contacts tracked across these 2,975 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 27, 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.