Company lists · Data refreshed September 2026

Top 25 IT infrastructure consulting firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 3,612 companies tracked

RevenueBase identified 3,612 IT infrastructure consulting firms headquartered in France as of September 2026 and tracks 76,260 professional contacts across them, including 23,950 with verified work emails and 2,104 with mobile numbers. Paris is the largest hub.

This list covers IT infrastructure consulting 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 4, 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 4, 2026 86% judged on-target in blind review

3,612Companies

76,260Contacts tracked

23,950Verified emails

2,104Mobile numbers

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The 25 largest IT infrastructure consulting firms based in France

Ranked by team size

Top 25 of 3,612 IT infrastructure consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to IT infrastructure consulting 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	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 4, 2026	10001+	4,992 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 4, 2026
2	Infotel	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 4, 2026	1,001-5,000	1,764 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 4, 2026
3	Mc2i	Indirect evidence	FranceHQ checked Sep 4, 2026	1,001-5,000	1,672 contacts →
	Indirect evidence “mc2i is an independent consultancy in Information System.” Source: RevenueBase Database · checked Sep 4, 2026
4	CMS	Indirect evidence	FranceHQ checked Sep 4, 2026	n/a	1,519 contacts →
	Indirect evidence “Société d'infogérance” Source: RevenueBase Database · checked Sep 4, 2026
5	Solutec	Strong evidence	Villeurbanne, FranceHQ checked Sep 4, 2026	1,001-5,000	1,458 contacts →
	Strong evidence “SOLUTEC: An IT Services Company SOLUTEC is an IT services company specialized in engineering, consulting and services.” Source: RevenueBase Database · checked Sep 4, 2026
6	Hardis Group	Strong evidence	Seyssinet-pariset, FranceHQ checked Sep 4, 2026	1,001-5,000	1,148 contacts →
	Strong 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 4, 2026
7	AUSY	Indirect evidence	Sèvres Cedex, FranceHQ checked Sep 4, 2026	5,001-10,000	1,062 contacts →
	Indirect evidence “The story of AUSY by Randstad started in France in 1989.” Source: RevenueBase Database · checked Sep 4, 2026
8	NRC	Indirect evidence	Sainghin En Mélantois, FranceHQ checked Sep 4, 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 4, 2026
9	T&s Technology & Strategy	Indirect evidence	Schiltigheim, FranceHQ checked Sep 4, 2026	1,001-5,000	946 contacts →
	Indirect evidence “Fondée en 2008, T&S est une entreprise spécialisée dans l'ingénierie, le digital et le conseil.” Source: RevenueBase Database · checked Sep 4, 2026
10	Viveris	Strong evidence	Boulogne-billancourt, FranceHQ checked Sep 4, 2026	1,001-5,000	840 contacts →
	Strong evidence “Viveris is a consulting and engineering company with two main activities - IT consulting.” Source: RevenueBase Database · checked Sep 4, 2026
11	Acensi	Indirect evidence	Courbevoie, FranceHQ checked Sep 4, 2026	1,001-5,000	837 contacts →
	Indirect evidence “You will be part of ACENSI network: 1650 co-workers involved in IS transformation projects at our clients through our multisectoral expertise.” Source: RevenueBase Database · checked Sep 4, 2026
12	Groupe Intm	Indirect evidence	Levallois-Perret, FranceHQ checked Sep 4, 2026	1,001-5,000	716 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 4, 2026
13	Exakis Nelite	Indirect evidence	Bidart, FranceHQ checked Sep 4, 2026	501-1,000	628 contacts →
	Indirect evidence “Exakis Nelite devient Magellan!” Source: RevenueBase Database · checked Sep 4, 2026
14	Prime Engineering France	Indirect evidence	Boulogne Billancourt, FranceHQ checked Sep 4, 2026	501-1,000	595 contacts →
	Indirect evidence “PRIME Engineering est l’un des acteurs incontournables du conseil en ingénierie.” Source: RevenueBase Database · checked Sep 4, 2026
15	Klanik	Strong evidence	Marseille, FranceHQ checked Sep 4, 2026	501-1,000	594 contacts →
	Strong evidence “KLANIK is a consulting company specialized in IT Engineering which accompanies its partners in their digital and technological projects.” Source: RevenueBase Database · checked Sep 4, 2026
16	Tenexa	Partial evidence	FranceHQ checked Sep 4, 2026	1,001-5,000	554 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 4, 2026
17	Meritis	Partial evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	547 contacts →
	Partial evidence “Meritis is a consulting firm specializing in the digital transformation of organizations, co-founded in 2007 by Sébastien Videment.” Source: RevenueBase Database · checked Sep 4, 2026
18	DCS Easyware	Partial evidence	Lyon, FranceHQ checked Sep 4, 2026	1,001-5,000	535 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 4, 2026
19	LINKT	Indirect evidence	Puteaux, FranceHQ checked Sep 4, 2026	201-500	440 contacts →
	Indirect evidence “Opérateur de services managés, expert en télécoms et cybersécurité, Linkt accompagne les ETI, les grands comptes et les collectivités dans la performance et la sécurisation de…” Source: RevenueBase Database · checked Sep 4, 2026
20	Zenika	Strong evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	430 contacts →
	Strong evidence “Zenika is an IT consulting firm with 550 employees that helps companies with their digital transformation.” Source: RevenueBase Database · checked Sep 4, 2026
21	Metsys	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 4, 2026	501-1,000	408 contacts →
	Partial evidence “Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Source: RevenueBase Database · checked Sep 4, 2026
22	WE	Partial evidence	Issy Les Moulineaux, FranceHQ checked Sep 4, 2026	201-500	402 contacts →
	Partial evidence “We+ est un cabinet de conseil expert en IT, membre de l’écosystème Alan Allman Associates.” Source: RevenueBase Database · checked Sep 4, 2026
23	Objectware	Strong evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	394 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 4, 2026
24	Conserto	Indirect evidence	Saint-herblain, FranceHQ checked Sep 4, 2026	201-500	388 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 4, 2026
25	Hexaware	Indirect evidence	Versailles, FranceHQ checked Sep 4, 2026	n/a	354 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 4, 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 infrastructure consulting 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 infrastructure consulting firms.
Partial evidence: Its own public description names part of IT infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT infrastructure consulting 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 3,612 IT infrastructure consulting firms based in France

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IT infrastructure consulting firms based in France at a glance

As of Sep 4, 2026

31.4%Verified-email coverage

2.8%Mobile-number coverage

21.1Average contacts per company

1-10Median size (employees)

21.5%Largest-city concentration · Paris

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

2,204

11-50

943

51-200

299

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

1,73431–60

13,30061–90

8,79390–180

123180+

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 infrastructure consulting 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 infrastructure consulting 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 infrastructure consulting 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 infrastructure consulting 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, 23,950 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 4, 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 infrastructure consulting 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 infrastructure consulting 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 infrastructure consulting firms are there based in France?

RevenueBase identified 3,612 IT infrastructure consulting 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?

Groupe SII, headquartered in Paris, tops this list with the largest team on record.

Which city has the most IT infrastructure consulting firms?

Paris leads with 777 headquartered companies, followed by Lyon (123) and Toulouse (73).

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 23,950 verified decision-maker contacts tracked across these 3,612 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 4, 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.