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, how directly it supports the match, 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 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 HQ checked on every row Match evidence 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. Evidence rates how directly each company's own description names IT infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Groupe SIIIndirect evidence	Paris, FranceHQ checked Sep 4, 2026	10001+	4,992
	“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: company website · checked Sep 4, 2026
2	InfotelIndirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 4, 2026	1,001-5,000	1,764
	“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: company website · checked Sep 4, 2026
3	Mc2iIndirect evidence	FranceHQ checked Sep 4, 2026	1,001-5,000	1,672
	“mc2i is an independent consultancy in Information System.” Source: company website · checked Sep 4, 2026
4	CMSIndirect evidence	FranceHQ checked Sep 4, 2026	n/a	1,519
	“Société d'infogérance” Source: company website · checked Sep 4, 2026
5	SolutecStrong evidence	Villeurbanne, FranceHQ checked Sep 4, 2026	1,001-5,000	1,458
	“SOLUTEC: An IT Services Company SOLUTEC is an IT services company specialized in engineering, consulting and services.” Source: company website · checked Sep 4, 2026
6	Hardis GroupStrong evidence	Seyssinet-pariset, FranceHQ checked Sep 4, 2026	1,001-5,000	1,148
	“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: company website · checked Sep 4, 2026
7	AUSYIndirect evidence	Sèvres Cedex, FranceHQ checked Sep 4, 2026	5,001-10,000	1,062
	“The story of AUSY by Randstad started in France in 1989.” Source: company website · checked Sep 4, 2026
8	NRCIndirect evidence	Sainghin En Mélantois, FranceHQ checked Sep 4, 2026	n/a	969
	“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: company website · checked Sep 4, 2026
9	T&s Technology & StrategyIndirect evidence	Schiltigheim, FranceHQ checked Sep 4, 2026	1,001-5,000	946
	“Fondée en 2008, T&S est une entreprise spécialisée dans l'ingénierie, le digital et le conseil.” Source: company website · checked Sep 4, 2026
10	ViverisStrong evidence	Boulogne-billancourt, FranceHQ checked Sep 4, 2026	1,001-5,000	840
	“Viveris is a consulting and engineering company with two main activities - IT consulting.” Source: company website · checked Sep 4, 2026
11	AcensiIndirect evidence	Courbevoie, FranceHQ checked Sep 4, 2026	1,001-5,000	837
	“You will be part of ACENSI network: 1650 co-workers involved in IS transformation projects at our clients through our multisectoral expertise.” Source: company website · checked Sep 4, 2026
12	Groupe IntmIndirect evidence	Levallois-Perret, FranceHQ checked Sep 4, 2026	1,001-5,000	716
	“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: company website · checked Sep 4, 2026
13	Exakis NeliteIndirect evidence	Bidart, FranceHQ checked Sep 4, 2026	501-1,000	628
	“Exakis Nelite devient Magellan!” Source: company website · checked Sep 4, 2026
14	Prime Engineering FranceIndirect evidence	Boulogne Billancourt, FranceHQ checked Sep 4, 2026	501-1,000	595
	“PRIME Engineering est l’un des acteurs incontournables du conseil en ingénierie.” Source: company website · checked Sep 4, 2026
15	KlanikStrong evidence	Marseille, FranceHQ checked Sep 4, 2026	501-1,000	594
	“KLANIK is a consulting company specialized in IT Engineering which accompanies its partners in their digital and technological projects.” Source: company website · checked Sep 4, 2026
16	TenexaPartial evidence	FranceHQ checked Sep 4, 2026	1,001-5,000	554
	“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: company website · checked Sep 4, 2026
17	MeritisPartial evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	547
	“Meritis is a consulting firm specializing in the digital transformation of organizations, co-founded in 2007 by Sébastien Videment.” Source: company website · checked Sep 4, 2026
18	DCS EasywarePartial evidence	Lyon, FranceHQ checked Sep 4, 2026	1,001-5,000	535
	“Filiale du Groupe SYNERGIE, DCS SYNERGIE GROUP capitalise sur son histoire pour accompagner chaque jour les enjeux IT de ses clients.” Source: company website · checked Sep 4, 2026
19	LINKTIndirect evidence	Puteaux, FranceHQ checked Sep 4, 2026	201-500	440
	“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: company website · checked Sep 4, 2026
20	ZenikaStrong evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	430
	“Zenika is an IT consulting firm with 550 employees that helps companies with their digital transformation.” Source: company website · checked Sep 4, 2026
21	MetsysPartial evidence	Boulogne-billancourt, FranceHQ checked Sep 4, 2026	501-1,000	408
	“Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Source: company website · checked Sep 4, 2026
22	WEPartial evidence	Issy Les Moulineaux, FranceHQ checked Sep 4, 2026	201-500	402
	“We+ est un cabinet de conseil expert en IT, membre de l’écosystème Alan Allman Associates.” Source: company website · checked Sep 4, 2026
23	ObjectwareStrong evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	394
	“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: company website · checked Sep 4, 2026
24	ConsertoIndirect evidence	Saint-herblain, FranceHQ checked Sep 4, 2026	201-500	388
	“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: company website · checked Sep 4, 2026
25	HexawareIndirect evidence	Versailles, FranceHQ checked Sep 4, 2026	n/a	354
	“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: company website · checked Sep 4, 2026

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

1-10Median size (employees)

ParisLargest hub · 777 HQs

2,104Contacts with mobile numbers

Sep 4, 2026Data 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+

Verified emails by last verification

0–30

31–60

1,734

61–90

13,300

90–180

8,793

180+

123

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 evidence 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 SmartSearch, 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.
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 an evidence 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

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 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.