Company lists · Data refreshed September 2026

Top 25 IT outsourcing services based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 966 companies tracked

RevenueBase identified 966 IT outsourcing services headquartered in France as of September 2026 and tracks 13,678 professional contacts across them, including 3,320 with verified work emails and 413 with mobile numbers. Paris is the largest hub.

This list covers IT outsourcing 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 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

966Companies

13,678Contacts tracked

3,320Verified emails

413Mobile numbers

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The 25 largest IT outsourcing services based in France

Ranked by team size

Top 25 of 966 IT outsourcing services 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 outsourcing 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	IGA	Indirect evidence	Malakoff, FranceHQ checked Sep 27, 2026	n/a	1,530 contacts →
	Indirect evidence “Métiers - Edition de composants/modules logiciels pour les métiers de l’assurance, du voyage et du négoce- Création de solutions spécifiques pour le compte des clients- Suivi et…” Source: RevenueBase Database · checked Sep 27, 2026
2	Adecco Outsourcing	Partial evidence	Paris, FranceHQ checked Sep 27, 2026	501-1,000	887 contacts →
	Partial evidence “Adecco Outsourcing propose aux entreprises des solutions d’externalisation dédiées à l’Accueil en entreprise, à l’Evènementiel, au Marketing terrain et aux activités de production…” Source: RevenueBase Database · checked Sep 27, 2026
3	Vivetic	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	1,001-5,000	737 contacts →
	Indirect evidence “Acteur historique de l’externalisation de la Relation Client, du Back-Office (BPO) et des Services Numériques & Informatiques, implanté en France et dans l’Océan Indien, à…” Source: RevenueBase Database · checked Sep 27, 2026
4	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
5	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
6	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
7	Cegedim Outsourcing	Strong evidence	Vélizy-villacoublay, FranceHQ checked Sep 27, 2026	201-500	224 contacts →
	Strong evidence “Cegedim Outsourcing, business unit Cegedim, est spécialisée dans deux domaines d'activité : IT et BPO.” Source: RevenueBase Database · checked Sep 27, 2026
8	Edifixio	Partial evidence	Bezons, FranceHQ checked Sep 27, 2026	201-500	213 contacts →
	Partial evidence “Edifixio is an IT services company working mainly for large international companies, in the areas of Industry, Retail, Insurance and Services.” Source: RevenueBase Database · checked Sep 27, 2026
9	Linkbynet	Indirect evidence	Saint Denis, FranceHQ checked Sep 27, 2026	501-1,000	197 contacts →
	Indirect evidence “We are a true product of innovation.” Source: RevenueBase Database · checked Sep 27, 2026
10	AXYUS	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 27, 2026	51-200	170 contacts →
	Indirect evidence “Une SSII avec de vraies valeurs."S'engager au forfait, respecter, les attentes de nos clients, leur budget en favorisant notamment la réutilisation affichée de nos composants…” Source: RevenueBase Database · checked Sep 27, 2026
11	Acelys Services Numériques	Indirect evidence	Montpellier, FranceHQ checked Sep 27, 2026	51-200	169 contacts →
	Indirect evidence “Créée en 1997, Acelys Services Numériques est une entreprise de services numériques (ESN) basée en Occitanie.” Source: RevenueBase Database · checked Sep 27, 2026
12	Norgay	Partial evidence	Paris, FranceHQ checked Sep 27, 2026	201-500	167 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 27, 2026
13	So'one	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 27, 2026	201-500	162 contacts →
	Indirect evidence “Support applicatif métier, support de proximité, centre de relation client, délégation illustrent le savoir-faire à forte valeur ajouté qu’ESDI délivre à ses clients.” Source: RevenueBase Database · checked Sep 27, 2026
14	Reactis Group	Partial evidence	Aix-en-provence Cedex 3, FranceHQ checked Sep 27, 2026	201-500	145 contacts →
	Partial evidence “Nous sommes une ESN qui accompagne les entreprises dans leurs projets IT grâce à des modes d'intervention flexibles : Assistance Technique Unitaire (ATU), Assistance Technique…” Source: RevenueBase Database · checked Sep 27, 2026
15	DHS	Indirect evidence	Bezons, FranceHQ checked Sep 27, 2026	51-200	139 contacts →
	Indirect evidence “DHS - 50 Ans d'Excellence Informatique Depuis 1973, DHS se distingue comme un leader dans le domaine informatique, combinant une riche histoire de 50 ans d'expertise et une vision…” Source: RevenueBase Database · checked Sep 27, 2026
16	Labsoft	Indirect evidence	Labège, FranceHQ checked Sep 27, 2026	51-200	132 contacts →
	Indirect evidence “Labsoft SSII accompagne des grands comptes régionaux et national ainsi que des PME PMI.” Source: RevenueBase Database · checked Sep 27, 2026
17	SCUB	Indirect evidence	Angoulême, FranceHQ checked Sep 27, 2026	51-200	127 contacts →
	Indirect evidence “Scub est une société de service en informatique qui a pour but de fournir du conseil et de développer des applications spécifiques afin de résoudre vos problématiques les plus…” Source: RevenueBase Database · checked Sep 27, 2026
18	Team-It	Indirect evidence	Aix-en-provence, FranceHQ checked Sep 27, 2026	51-200	115 contacts →
	Indirect evidence “Mais qui sommes-nous?” Source: RevenueBase Database · checked Sep 27, 2026
19	A5sys	Indirect evidence	Saint Herblain, FranceHQ checked Sep 27, 2026	51-200	97 contacts →
	Indirect evidence “Créée en 2001, A5sys est une société de services en informatique spécialisée dans - le décisionnel - les bases de données - le développement d'applicatifs.” Source: RevenueBase Database · checked Sep 27, 2026
20	H-Tech Supports	Partial evidence	Saint-leu-la-forêt, FranceHQ checked Sep 27, 2026	51-200	97 contacts →
	Partial evidence “We at HTS provide the modern day IT and network solutions to the enterprise markets through an extensive range of managed IT support services to its worldwide clientele.” Source: RevenueBase Database · checked Sep 27, 2026
21	Bharti Soft Tech Pvt. LTD	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	201-500	97 contacts →
	Indirect evidence “Bharti Soft Tech Pvt.” Source: RevenueBase Database · checked Sep 27, 2026
22	Nextoo	Indirect evidence	Roubaix, FranceHQ checked Sep 27, 2026	51-200	95 contacts →
	Indirect evidence “Eh non,"Développeurs de progrès", n’est pas qu'un joli slogan pour nos T-shirts; c'est une véritable philosophie.” Source: RevenueBase Database · checked Sep 27, 2026
23	BIMP	Indirect evidence	Limonest, FranceHQ checked Sep 27, 2026	501-1,000	95 contacts →
	Indirect evidence “Chaque client est unique, c’est en cela que nous vous proposons un accompagnement sur mesure et complet.” Source: RevenueBase Database · checked Sep 27, 2026
24	ELOSI	Indirect evidence	Villeneuve D'ascq, FranceHQ checked Sep 27, 2026	51-200	94 contacts →
	Indirect evidence “ELOSI est une société de services informatiques spécialisée dans la refonte de site internet, le e-commerce et la business intelligence.” Source: RevenueBase Database · checked Sep 27, 2026
25	EDIIS	Indirect evidence	Saint-malo, FranceHQ checked Sep 27, 2026	501-1,000	82 contacts →
	Indirect evidence “EDIIS propose un ensemble de services d'externalisation des process métiers autour du document et de la relation client.” 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 outsourcing 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 outsourcing services.
Partial evidence: Its own public description names part of IT outsourcing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT outsourcing 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 966 IT outsourcing services based in France

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IT outsourcing services based in France at a glance

As of Sep 27, 2026

24.3%Verified-email coverage

3.0%Mobile-number coverage

14.2Average contacts per company

1-10Median size (employees)

20.3%Largest-city concentration · Paris

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

617

11-50

232

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 30.0d

1,8780–30

1,33831–60

9561–90

290–180

7180+

Company record updated

Median 92.0d

00–30

2,28231–60

4,34261–90

6,42190–180

633180+

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 outsourcing 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 outsourcing 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 outsourcing 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 outsourcing 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, 3,320 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 outsourcing services by metro

IT outsourcing services in Paris196

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 outsourcing 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 outsourcing services are there based in France?

RevenueBase identified 966 IT outsourcing 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?

IGA, headquartered in Malakoff, tops this list with the largest team on record.

Which city has the most IT outsourcing services?

Paris leads with 196 headquartered companies, followed by Toulouse (22) and Lyon (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 3,320 verified decision-maker contacts tracked across these 966 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.