Company lists · Data refreshed September 2026

Top 25 IT data companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 570 companies tracked

RevenueBase identified 570 IT data companies headquartered in France as of September 2026 and tracks 8,400 professional contacts across them, including 2,662 with verified work emails. Paris is the largest hub.

This list covers IT data 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 21, 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 21, 2026 86% judged on-target in blind review

570Companies

8,400Contacts tracked

2,662Verified emails

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The 25 largest IT data companies based in France

Ranked by team size

Top 25 of 570 IT data companies based in France, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT data 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	CMS	Indirect evidence	Meudon La Foret, FranceHQ checked Sep 21, 2026	n/a	1,519 contacts →
	Indirect evidence “Société d'infogérance” Source: RevenueBase Database · checked Sep 21, 2026
2	Coexya	Partial evidence	Saint-didier-au-mont-d'or, FranceHQ checked Sep 21, 2026	501-1,000	668 contacts →
	Partial evidence “Coexya has been an independent entity since October 1st 2020 when it was acquired by the operational management team with the support of the European private equity group Argos…” Source: RevenueBase Database · checked Sep 21, 2026
3	Tenexa	Partial evidence	Roissy Cdg Cedex, FranceHQ checked Sep 21, 2026	1,001-5,000	551 contacts →
	Partial evidence “Fondée en 1985, Tenexa est une Entreprise de services du numérique (ESN), Le groupe Tenexa est composé de deux filiales (Infodis IT, & Prolival) et se positionne résolument vers…” Source: RevenueBase Database · checked Sep 21, 2026
4	DCS Easyware	Partial evidence	Lyon, FranceHQ checked Sep 21, 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 21, 2026
5	Altares	Partial evidence	Puteaux, FranceHQ checked Sep 21, 2026	201-500	311 contacts →
	Partial evidence “As a world pioneer in Data Economy, Altares mission is to enhance the value of its customers' Data capital by transforming their information assets into operational economic…” Source: RevenueBase Database · checked Sep 21, 2026
6	Linkbynet	Indirect evidence	Saint Denis, FranceHQ checked Sep 21, 2026	501-1,000	197 contacts →
	Indirect evidence “We are a true product of innovation.” Source: RevenueBase Database · checked Sep 21, 2026
7	Atempo	Indirect evidence	Massy, FranceHQ checked Sep 21, 2026	201-500	161 contacts →
	Indirect evidence “Atempo is a leading independent European-based software vendor with a global presence.” Source: RevenueBase Database · checked Sep 21, 2026
8	NTICO	Indirect evidence	Sainghin-en-mélantois, FranceHQ checked Sep 21, 2026	51-200	136 contacts →
	Indirect evidence “LE DIGITAL PAR EXPERIENCE] Ntico, entreprise de services numérique est une communauté de talents, présente à Lille, Massy, Orléans et Montpellier, partageant des valeurs…” Source: RevenueBase Database · checked Sep 21, 2026
9	Digora	Partial evidence	Strasbourg, FranceHQ checked Sep 21, 2026	51-200	112 contacts →
	Partial evidence “Use the full potential of your data and your IS to overcome your challenges in terms of availability, performance and security.” Source: RevenueBase Database · checked Sep 21, 2026
10	Ava6	Indirect evidence	Limonest, FranceHQ checked Sep 21, 2026	51-200	109 contacts →
	Indirect evidence “AVA6 est une ESN dont les domaines de compétences sont l'infrastructure, systèmes et réseaux, hébergement.” Source: RevenueBase Database · checked Sep 21, 2026
11	Logical Conseils	Partial evidence	Croix, FranceHQ checked Sep 21, 2026	51-200	102 contacts →
	Partial evidence “Logical Conseils est une ESN nouvelle génération qui élève le potentiel collectif et individuel avec la data pour moteur.” Source: RevenueBase Database · checked Sep 21, 2026
12	Elyadata	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	51-200	98 contacts →
	Partial evidence “elyadata unites the power of scientific expertise and business acumen to crack the code of data transformation.” Source: RevenueBase Database · checked Sep 21, 2026
13	A5sys	Indirect evidence	Saint Herblain, FranceHQ checked Sep 21, 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 21, 2026
14	Novahé	Indirect evidence	Saint Cloud Cedex, FranceHQ checked Sep 21, 2026	51-200	92 contacts →
	Indirect evidence “En 2018, AS-PC, EVEA TECHNOLOGY et INETD CONSULTING deviennent NOVAHE < Novahé accompagne les ETIs et les Grands Comptes dans l’optimisation et l’urbanisation de leur Système…” Source: RevenueBase Database · checked Sep 21, 2026
15	Lutessa	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	51-200	83 contacts →
	Indirect evidence “Allez, on se présente!” Source: RevenueBase Database · checked Sep 21, 2026
16	Logigroup	Partial evidence	Montrouge, FranceHQ checked Sep 21, 2026	51-200	77 contacts →
	Partial evidence “Logigroup est une Entreprise de Services du Numérique (ESN) spécialisée dans le Data Management, la transformation digitale, le Cloud et la Cybersécurité.” Source: RevenueBase Database · checked Sep 21, 2026
17	Smartpoint	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	201-500	66 contacts →
	Partial evidence “De l’architecture à l’IA générative, Smartpoint couvre toute la chaîne de valeur Data.” Source: RevenueBase Database · checked Sep 21, 2026
18	Tersedia	Partial evidence	Chatou, FranceHQ checked Sep 21, 2026	11-50	64 contacts →
	Partial evidence “Tersedia is a leading provider of IT solutions born from the fusion between Informedia, specialized distributor of global infrastructure and Virtue, Storage and Business…” Source: RevenueBase Database · checked Sep 21, 2026
19	Access Group	Indirect evidence	Annecy, FranceHQ checked Sep 21, 2026	51-200	56 contacts →
	Indirect evidence “Bienvenue chez Access Group, pôle d'expertises numériques d'Eiffage Energie Systèmes en région Auvergne Rhône-Alpes.” Source: RevenueBase Database · checked Sep 21, 2026
20	IT Systemes	Indirect evidence	Malakoff, FranceHQ checked Sep 21, 2026	11-50	52 contacts →
	Indirect evidence “Votre logiciel métier devrait vous appartenir.” Source: RevenueBase Database · checked Sep 21, 2026
21	All4it	Partial evidence	Lezennes, FranceHQ checked Sep 21, 2026	51-200	48 contacts →
	Partial evidence “All4It is an international company focusing its core activity around 2 main areas : IT Services Management IT Consulting Those expertise areas developped during the evolution of…” Source: RevenueBase Database · checked Sep 21, 2026
22	Webhelp KYC Services	Indirect evidence	La Motte Servolex, FranceHQ checked Sep 21, 2026	51-200	46 contacts →
	Indirect evidence “WEBHELP KYC SERVICES is an information technology and services company based out of 450 RUE FELIX ESCLANGON, La Motte Servolex, Auvergnerhônealpes, France.” Source: RevenueBase Database · checked Sep 21, 2026
23	Ootary	Strong evidence	Soultz-haut-rhin, FranceHQ checked Sep 21, 2026	11-50	45 contacts →
	Strong evidence “Simplify your IT projects and accelerate your digital transformation Whether it’s migrating to an ERP system, optimizing your IT infrastructure, or managing data flows… these are…” Source: RevenueBase Database · checked Sep 21, 2026
24	ADBI	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	51-200	39 contacts →
	Partial evidence “Nous sommes une entreprise pure player de la data qui compte plus de 130 experts.” Source: RevenueBase Database · checked Sep 21, 2026
25	Act-On Data	Partial evidence	Neuilly Sur Seine, FranceHQ checked Sep 21, 2026	51-200	38 contacts →
	Partial evidence “ACT-ON DATA is the data & AI branch of ACT-ON GROUP.” Source: RevenueBase Database · checked Sep 21, 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 data 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 data companies.
Partial evidence: Its own public description names part of IT data companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT data 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 570 IT data companies based in France

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IT data companies based in France at a glance

As of Sep 21, 2026

31.7%Verified-email coverage

14.7Average contacts per company

1-10Median size (employees)

20.4%Largest-city concentration · Paris

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

388

11-50

116

51-200

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 570 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 data 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 data 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 data 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 data 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, 2,662 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 21, 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 data companies by metro

IT data companies in Paris116

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 data 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 data companies are there based in France?

RevenueBase identified 570 IT data 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?

CMS, headquartered in France, tops this list with the largest team on record.

Which city has the most IT data companies?

Paris leads with 116 headquartered companies, followed by Lyon (9) and Marseille (9).

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 2,662 verified decision-maker contacts tracked across these 570 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 21, 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.