Company lists · Data refreshed September 2026

Top 25 IT systems integration firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,498 companies tracked

RevenueBase identified 1,498 IT systems integration firms headquartered in France as of September 2026 and tracks 25,741 professional contacts across them, including 9,222 with verified work emails. Paris is the largest hub.

This list covers IT systems integration 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 28, 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 28, 2026 86% judged on-target in blind review

1,498Companies

25,741Contacts tracked

9,222Verified emails

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The 25 largest IT systems integration firms based in France

Ranked by team size

Top 25 of 1,498 IT systems integration firms based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT systems integration 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	Consort Group	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1,001-5,000	1,704 contacts →
	Indirect evidence “Acteur de référence des systèmes d’information augmentés par l’intégration stratégique de la data, Consort Group accompagne les entreprises pour leur permettre de valoriser ce…” Source: RevenueBase Database · checked Sep 28, 2026
2	Mc2i	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	1,001-5,000	1,668 contacts →
	Partial evidence “mc2i is an independent consultancy in Information System.” Source: RevenueBase Database · checked Sep 28, 2026
3	NRC	Indirect evidence	Sainghin En Mélantois, FranceHQ checked Sep 28, 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 28, 2026
4	Viveris	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 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 28, 2026
5	Absys Cyborg	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 28, 2026	501-1,000	579 contacts →
	Indirect evidence “Absys Cyborg - A company specialized on business solutions deployments - Subsidiary of the Keyrus Group - 330 employees - 3,800 customers - Is employee development centric - Is…” Source: RevenueBase Database · checked Sep 28, 2026
6	DCS Easyware	Partial evidence	Lyon, FranceHQ checked Sep 28, 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 28, 2026
7	Delaware France	Indirect evidence	Villeurbanne, FranceHQ checked Sep 28, 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 28, 2026
8	Metsys	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 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 28, 2026
9	Objectware	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	501-1,000	395 contacts →
	Strong 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 28, 2026
10	Equans Digital	Partial evidence	Courbevoie, FranceHQ checked Sep 28, 2026	5,001-10,000	393 contacts →
	Partial evidence “Equans Digital connects OT, IT and data to make your infrastructures truly controllable.” Source: RevenueBase Database · checked Sep 28, 2026
11	Webnet	Indirect evidence	Sèvres, FranceHQ checked Sep 28, 2026	51-200	217 contacts →
	Indirect evidence “Créée en 1996, Webnet est intégrateur de solutions internet.” Source: RevenueBase Database · checked Sep 28, 2026
12	Iliade Consulting	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	201-500	211 contacts →
	Partial evidence “Iliade Consulting is an IT Consulting Company specialized in the energy and water sector.” Source: RevenueBase Database · checked Sep 28, 2026
13	UNIS	Indirect evidence	Villeneuve D'ascq, FranceHQ checked Sep 28, 2026	201-500	181 contacts →
	Indirect evidence “Vous avez envie de prendre part à un projet d'entreprise fort au sein d'une entreprise qui favorise l'expression des talents de chacun?” Source: RevenueBase Database · checked Sep 28, 2026
14	Acelys Services Numériques	Indirect evidence	Montpellier, FranceHQ checked Sep 28, 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 28, 2026
15	C2c	Indirect evidence	Roissy En France, FranceHQ checked Sep 28, 2026	51-200	167 contacts →
	Indirect evidence “C2C est un intégrateur spécialisé dans les systèmes de communication Réseau IP couvrant les domaines des Infrastructures de câblage, le Wireless, les solutions de Vidéo Protection…” Source: RevenueBase Database · checked Sep 28, 2026
16	Agap2it France	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 2026	1,001-5,000	165 contacts →
	Partial evidence “Fondée en 2005, agap2 IT est une société de conseil en Systèmes d’Information d’envergure européenne (France, Portugal, Suisse et Espagne).” Source: RevenueBase Database · checked Sep 28, 2026
17	Rs2i	Indirect evidence	Levallois-perret, FranceHQ checked Sep 28, 2026	51-200	144 contacts →
	Indirect evidence “Chez RS2i, nous avons à cœur de réaliser votre transformation digitale, et ce, grâce à notre expertise acquise de longue date.” Source: RevenueBase Database · checked Sep 28, 2026
18	RBI	Indirect evidence	Rennes, FranceHQ checked Sep 28, 2026	11-50	133 contacts →
	Indirect evidence “Dans un monde où tout s’accélère, la transformation numérique n’est plus une option : c’est un levier de compétitivité.” Source: RevenueBase Database · checked Sep 28, 2026
19	Labsoft	Indirect evidence	Labège, FranceHQ checked Sep 28, 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 28, 2026
20	IS Technologies	Indirect evidence	Courbevoie Cedex, FranceHQ checked Sep 28, 2026	n/a	127 contacts →
	Indirect evidence “IS Technologies est une société de conseils et de services en informatique basée à La Défense.” Source: RevenueBase Database · checked Sep 28, 2026
21	Addinn Group	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	125 contacts →
	Indirect evidence “ADDINN est un cabinet de conseil et d'ingénierie en systèmes d'informations depuis 2012, spécialisé dans les secteurs de la Banque, de l'Assurance et du Transport.” Source: RevenueBase Database · checked Sep 28, 2026
22	Applium	Indirect evidence	Clichy, FranceHQ checked Sep 28, 2026	51-200	123 contacts →
	Indirect evidence “Integrator dedicated to SAP, partner DVA, Consulting and training of SAP France, Applium has for vocation the consulting, the implementation and the optimization of SAP solutions.” Source: RevenueBase Database · checked Sep 28, 2026
23	Timcod	Indirect evidence	Carquefou, FranceHQ checked Sep 28, 2026	51-200	121 contacts →
	Indirect evidence “Intégrateur de solutions informatiques pour les travailleurs mobiles, dans l’entrepôt et sur la route (logistique et transport, forces de ventes, techniciens) Spécialiste…” Source: RevenueBase Database · checked Sep 28, 2026
24	Mismo Informatique	Indirect evidence	La Chapelle Sur Erdre, FranceHQ checked Sep 28, 2026	51-200	110 contacts →
	Indirect evidence “Mismo, Forget Technology Mismo propose une offre complète en solutions de gestion, d'infrastructure et matériels informatiques.” Source: RevenueBase Database · checked Sep 28, 2026
25	ENGIT	Partial evidence	Valbonne, FranceHQ checked Sep 28, 2026	51-200	102 contacts →
	Partial evidence “engIT \| Innovation IT & Transformation digitale - Faire du conseil différemment Depuis 2017, engIT accompagne les entreprises dans leurs projets stratégiques d'innovation…” Source: RevenueBase Database · checked Sep 28, 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 systems integration 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 IT systems integration firms.
Partial evidence: Its own public description names part of IT systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT systems integration 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 1,498 IT systems integration firms based in France

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IT systems integration firms based in France at a glance

As of Sep 28, 2026

35.8%Verified-email coverage

17.2Average contacts per company

1-10Median size (employees)

18.4%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

857

11-50

477

51-200

124

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 1,498 companies.

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 systems integration 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 “IT systems integration 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 IT systems integration 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 IT systems integration 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, 9,222 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 28, 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 systems integration 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 IT systems integration 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 IT systems integration firms are there based in France?

RevenueBase identified 1,498 IT systems integration 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?

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

Which city has the most IT systems integration firms?

Paris leads with 276 headquartered companies, followed by Lyon (47) and Toulouse (21).

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 9,222 verified decision-maker contacts tracked across these 1,498 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 28, 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.