Company lists · Data refreshed September 2026

Top 25 System administration outsourcing firms based in France

Name: System administration outsourcing firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 618 companies tracked

RevenueBase identified 618 company matches for system administration outsourcing firms associated with France as of September 2026 and tracks 5,307 professional contacts across them, including 1,281 with verified work emails and 220 with mobile numbers. Paris is the largest hub.

This list covers company matches for system administration outsourcing firms associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 6, 2026 How this list was built

618Companies

5,307Contacts tracked

1,281Verified emails

220Mobile numbers

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The 25 largest system administration outsourcing firms based in France

Ranked by team size

Top 25 of 618 company matches for system administration outsourcing firms based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	CMS	Exact match	Meudon La Foret, FranceHQ recorded Sep 6, 2026	n/a	1,519 contacts →
	Exact match “Société d'infogérance” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2	Ava6	Exact match	Limonest, FranceHQ recorded Sep 6, 2026	51-200	109 contacts →
	Exact match “AVA6 est une ESN dont les domaines de compétences sont l'infrastructure, systèmes et réseaux, hébergement.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3	H-Tech Supports	Exact match	Saint-leu-la-forêt, FranceHQ recorded Sep 6, 2026	51-200	97 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4	EBS Group France	Exact match	Bièvres, FranceHQ recorded Sep 6, 2026	51-200	81 contacts →
	Exact match “EBS Group est une société spécialisée dans la gestion globale des services et équipements informatiques.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5	Inforsud Technologies	Exact match	Bozouls (rodez), FranceHQ recorded Sep 6, 2026	51-200	60 contacts →
	Exact match “Prestataire de services informatiques, nous accompagnons nos clients PME, ETI, Collectivités à gérer, sécuriser et transformer leur Système d’Information depuis plus de 35 ans.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
6	Adelius LA Home Sweet Company	Exact match	Neuilly-sur-seine, FranceHQ recorded Sep 6, 2026	201-500	59 contacts →
	Exact match “Les experts de la production informatique ADELIUS est une société de services et de prestations intellectuelles.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7	Iguane Solutions	Exact match	Paris, FranceHQ recorded Sep 6, 2026	51-200	53 contacts →
	Exact match “Spécialiste depuis de l’hébergement et de l’infogérance, Iguane Solutions affiche quelques belles références clients : Dailymotion, Deezer, Dassault Systèmes, Virgin Mega…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8	Nowteam	Exact match	Elancourt, FranceHQ recorded Sep 6, 2026	51-200	53 contacts →
	Exact match “Partenaire de votre service informatique.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9	Copwell	Exact match	Clichy, FranceHQ recorded Sep 6, 2026	51-200	51 contacts →
	Exact match “COPWELL, Votre DSI externalisée en Île‑de‑France pour PME & TPE exigeantes.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10	Atémis	Exact match	La Chapelle Sur Erdre, FranceHQ recorded Sep 6, 2026	11-50	49 contacts →
	Exact match “Depuis plus de 25 ans, ATÉMIS accompagne les entreprises dans la conception, le déploiement et la sécurisation de leurs infrastructures informatiques.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11	Groupe Acmi	Exact match	Paris, FranceHQ recorded Sep 6, 2026	11-50	40 contacts →
	Exact match “Notre métier : Imaginer, fournir, installer, sécuriser, hé-berger et gérer vos infrastructures informatiques.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12	Bluecom	Exact match	Guipavas, FranceHQ recorded Sep 6, 2026	11-50	37 contacts →
	Exact match “Depuis + de 25 ans, Bluecom est le spécialiste de la prise en charge des systèmes d’information dans les organisations.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13	IAF	Exact match	Marne-La-Vallee, FranceHQ recorded Sep 6, 2026	11-50	35 contacts →
	Exact match “Informatique Assistances : Votre partenaire IT de confiance.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14	Network Systems	Exact match	Le Kremlin-bicêtre, FranceHQ recorded Sep 6, 2026	11-50	32 contacts →
	Exact match “Network Systems est un prestataire informatique et réseaux dédié aux entreprises.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15	Promatec	Exact match	Bondues, FranceHQ recorded Sep 6, 2026	11-50	32 contacts →
	Exact match “Créée en 1996 Promatec est une SSII implantée à Bondues (59) spécialisée dans la la maintenance, l'infogérance, l’intégration, la sécurité informatique et les services…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16	Systelecoms	Exact match	Villeneuve-d'ascq, FranceHQ recorded Sep 6, 2026	11-50	29 contacts →
	Exact match “SYS TELECOMS est une société à taille humaine qui a pour #mission d’accompagner les entreprises dans la maitrise de leurs #infrastructures IT et la mise en œuvre de solutions…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17	Aprile	Exact match	Boulogne-billancourt, FranceHQ recorded Sep 6, 2026	51-200	28 contacts →
	Exact match “APRILE est une société de services indépendante basée à Boulogne-Billancourt et regroupant une soixantaine de collaborateurs.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18	Altaë Groupe	Exact match	Moirans, FranceHQ recorded Sep 6, 2026	11-50	27 contacts →
	Exact match “Notre métier consiste à gérer le parc informatique de nos clients (bilan, conseil, prestation) et leur permettre de l’optimiser tant techniquement que financièrement.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19	Agitel Groupe	Exact match	Paris, FranceHQ recorded Sep 6, 2026	11-50	27 contacts →
	Exact match “Agitel Groupe, société d’infogérance accompagne les entreprises (magasins, sièges sociaux.) au quotidien dans leur besoin en IT à travers 3 axes d’expertise : Administrer et créer…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20	SO Hexawin	Exact match	Cugnaux, FranceHQ recorded Sep 6, 2026	11-50	22 contacts →
	Exact match “SO hexawin (Groupe FACTORIA) est le spécialiste du service informatique externalisé auprès des PME / PMI, ETI et collectivités.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21	2isr	Exact match	Cholet, FranceHQ recorded Sep 6, 2026	11-50	22 contacts →
	Exact match “Notre société basée à CHOLET vous accompagne dans l'étude, l'installation et la maintenance de vos systèmes informatiques.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22	Humane SI	Exact match	Paris, FranceHQ recorded Sep 6, 2026	11-50	22 contacts →
	Exact match “Fondée en 2012, Humane SI, société spécialisée dans le conseil, l'infogérance et la gestion de parcs informatiques auprès d’associations et de fondations du secteur sanitaire et…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23	Eodesk By Metaline	Exact match	Aurillac, FranceHQ recorded Sep 6, 2026	11-50	19 contacts →
	Exact match “Quodagis Managed Services assure un fonctionnement optimal des infrastructures informatiques depuis son centre de service à Aurillac, ou sur vos propres sites : Supporter les…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24	SC Micro	Exact match	Landerneau, FranceHQ recorded Sep 6, 2026	11-50	19 contacts →
	Exact match “Chez SC Micro, nous croyons qu’un parc informatique performant et sécurisé est la clé de la réussite des entreprises.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25	IT Contact	Exact match	Roanne, FranceHQ recorded Sep 6, 2026	11-50	19 contacts →
	Exact match “IT contact sécurise le système informatique et déploie des solutions collaboratives auprès des PME et ETI sur tout le territoire national.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “system administration outsourcing firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 618 system administration outsourcing firms based in France

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System administration outsourcing firms based in France at a glance

As of Sep 6, 2026

24.1%Verified-email coverage

4.1%Mobile-number coverage

8.6Average contacts per company

1-10Median size (employees)

10.0%Largest-city concentration · Paris

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

471

11-50

121

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,1940–30

8731–60

061–90

090–180

0180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with France whose business descriptions match “system administration outsourcing firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,281 professional contacts with verified work emails across the full matched dataset. 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 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

System administration outsourcing firms by metro

System administration outsourcing firms in Paris62

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “system administration outsourcing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many system administration outsourcing firms are there based in France?

RevenueBase identified 618 company matches for system administration outsourcing firms associated with France as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

CMS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most system administration outsourcing firms?

Paris leads with 62 company records, followed by Lyon (12) and Toulouse (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,281 professional contacts with verified work emails tracked across these 618 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 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 SmartSearch, 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.