Company lists · Data refreshed September 2026

Top 25 IT transformation services based in France

RevenueBase identified 1,098 IT transformation services headquartered in France as of September 2026 and tracks 390,754 professional contacts across them, including 156,307 with verified work emails. Paris is the largest hub.

This list covers IT transformation services 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
1,098Companies
390,754Contacts tracked
156,307Verified emails
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The 25 largest IT transformation services based in France

Ranked by team size
Top 25 of 1,098 IT transformation services 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 transformation services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceParis, FranceHQ checked Sep 21, 202610001+284,286 contacts →

Partial evidence

“Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceParis, FranceHQ checked Sep 21, 202610001+36,960 contacts →

Indirect evidence

“Sopra Steria, a major Tech player in Europe with employees in nearly 30 countries, is recognised for its consulting, digital services and solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceBoulogne-billancourt Cedex, FranceHQ checked Sep 21, 202610001+17,044 contacts →

Indirect evidence

“ALTEN is committed to meeting the expectations of its stakeholders and anticipating their requirements in the fields of innovation, R&D, and technological information systems.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidence100-101 Terrasse Boieldieu, FranceHQ checked Sep 21, 20261,001-5,0006,190 contacts →

Indirect evidence

“Wavestone is a leading consulting firm operating at the intersection of business and technology.”

Source: RevenueBase Database · checked Sep 21, 2026
5Strong evidenceNantes, FranceHQ checked Sep 21, 20261,001-5,0002,167 contacts →

Strong evidence

“Experis accompagne les DSI dans leurs projets de transformation digitale en déployant des solutions innovantes en matière de Services et de Talent IT afin de répondre aux besoins…”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceLevallois-perret, FranceHQ checked Sep 21, 20261,001-5,0001,964 contacts →

Indirect evidence

“At Keyrus, we help organizations move from experimental AI to industrialized AI, from isolated agents to orchestrated systems, and from insight to execution.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceNeuilly-sur-seine, FranceHQ checked Sep 21, 20261,001-5,0001,735 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 21, 2026
8Partial evidenceParis, FranceHQ checked Sep 21, 20261,001-5,0001,394 contacts →

Partial evidence

“At Prodware, we believe that Trust, Audacity, and Passion are the driving forces behind meaningful digital transformation.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceIssy-les-moulineaux, FranceHQ checked Sep 21, 20261,001-5,0001,256 contacts →

Partial evidence

“Créée en septembre 2001, Niji est une société de conseil, de design et de mise en œuvre technologique, entièrement dédiée à la transformation numérique des entreprises et des…”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceParis, FranceHQ checked Sep 21, 20261,001-5,0001,240 contacts →

Partial evidence

“Néosoft est un groupe indépendant de conseil en transformation digitale de 1800 collaborateurs réunis en communautés d’experts : Conseil & Agilité, Cybersécurité, Data, DevOps…”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceIssy Les Moulineaux, FranceHQ checked Sep 21, 202610001+924 contacts →

Partial evidence

“Randstad Digital is a trusted digital enablement partner that facilitates the rapid transformation of businesses by providing global talent, production capabilities, and…”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceCourbevoie, FranceHQ checked Sep 21, 20261,001-5,000844 contacts →

Partial 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 21, 2026
13Partial evidenceLevallois-perret, FranceHQ checked Sep 21, 20261,001-5,000795 contacts →

Partial evidence

“An international consulting group specialized in corporate transformation through Data, MICROPOLE partners its clients through a global approach: ‘Data Driven‘ Strategy, Cloud…”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceLyon, FranceHQ checked Sep 21, 20261,001-5,000750 contacts →

Indirect evidence

“Through innovation and digitalisation, Visiativ delivers smarter ways of working that help businesses become more agile, efficient and collaborative.”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceMarseille, FranceHQ checked Sep 21, 2026501-1,000585 contacts →

Partial 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 21, 2026
16Partial evidenceLyon, FranceHQ checked Sep 21, 20261,001-5,000532 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
17Indirect evidenceLevallois-perret, FranceHQ checked Sep 21, 2026501-1,000528 contacts →

Indirect evidence

“Devoteam is a Diamond Tier Partner in the Google Cloud Services Partner Path and a Managed Services Provider.”

Source: RevenueBase Database · checked Sep 21, 2026
18Strong evidenceParis, FranceHQ checked Sep 21, 2026501-1,000430 contacts →

Strong evidence

“Zenika is an IT consulting firm with 550 employees that helps companies with their digital transformation.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceBoulogne-billancourt, FranceHQ checked Sep 21, 20261,001-5,000417 contacts →

Partial evidence

“Digital transformation company, business and technology consulting, Audensiel supports its clients in all business sectors in France and abroad in the following areas- Digital…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceParis, FranceHQ checked Sep 21, 2026201-500394 contacts →

Indirect evidence

“Ataway is a global consulting company supporting organizations across industries, with over 25 years of experience and presence in more than 23 countries.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceBoulogne-billancourt, FranceHQ checked Sep 21, 20261,001-5,000342 contacts →

Partial evidence

“For over 20 years, ITS Group has supported companies in their digital transformation projects thanks to the strength of its specialized areas of expertise.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceParis, FranceHQ checked Sep 21, 2026501-1,000331 contacts →

Indirect evidence

“Together, aiming higher and going further to unlock your potential.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceVilleurbanne, FranceHQ checked Sep 21, 2026201-500314 contacts →

Indirect evidence

“Bienvenue chez Amiltone.”

Source: RevenueBase Database · checked Sep 21, 2026
24Partial evidenceToulouse, FranceHQ checked Sep 21, 2026201-500313 contacts →

Partial evidence

“Inside est une société de conseil et de services numériques qui simplifie et accélère la transformation des entreprises, de la stratégie à la mise en œuvre, avec un objectif clair…”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceParis, FranceHQ checked Sep 21, 2026201-500279 contacts →

Indirect evidence

“Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 1,098 IT transformation services based in France

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IT transformation services based in France at a glance

As of Sep 21, 2026
40.0%Verified-email coverage
355.9Average contacts per company
1-10Median size (employees)
33.2%Largest-city concentration · Paris
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
637
11-50
277
51-200
109
201-500
31
501-1,000
11
1,001-5,000
20
5,001-10,000
2
10001+
8

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 1,098 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 transformation services, 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 transformation services”. 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 transformation services), 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 transformation services, 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, 156,307 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.

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 transformation services, 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 transformation services are there based in France?

RevenueBase identified 1,098 IT transformation services 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?

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

Which city has the most IT transformation services?

Paris leads with 364 headquartered companies, followed by Lyon (42) and Lille (29).

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 156,307 verified decision-maker contacts tracked across these 1,098 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.