Company lists · Data refreshed September 2026

Top 25 IT consultancy services based in Paris, France

Name: IT consultancy services based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 1,515 companies tracked

RevenueBase identified 1,515 IT consultancy services headquartered in Paris, France as of September 2026 and tracks 375,662 professional contacts across them, including 157,266 with verified work emails. Paris is the largest hub.

This list covers IT consultancy services headquartered in Paris, 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 26, 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 26, 2026 86% judged on-target in blind review

1,515Companies

375,662Contacts tracked

157,266Verified emails

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The 25 largest IT consultancy services based in Paris, France

Ranked by team size

Top 25 of 1,515 IT consultancy services based in Paris, France, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to IT consultancy 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Capgemini	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	10001+	284,286 contacts →
	Indirect evidence “Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value.” Source: RevenueBase Database · checked Sep 26, 2026
2	Sopra Steria	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	10001+	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 26, 2026
3	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	10001+	4,928 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 26, 2026
4	SIA	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	1,001-5,000	2,890 contacts →
	Indirect evidence “Sia is an next-generation global consulting group in strategy, artificial intelligence and management.” Source: RevenueBase Database · checked Sep 26, 2026
5	Prodware	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	1,001-5,000	1,394 contacts →
	Indirect evidence “At Prodware, we believe that Trust, Audacity, and Passion are the driving forces behind meaningful digital transformation.” Source: RevenueBase Database · checked Sep 26, 2026
6	Neosoft	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	1,001-5,000	1,240 contacts →
	Indirect 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 26, 2026
7	TGS France	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	1,001-5,000	1,051 contacts →
	Indirect evidence “TGS Soregor brings specialists together from seven different areas of expertise in order to offer a comprehensive solution for businesses.” Source: RevenueBase Database · checked Sep 26, 2026
8	Synchrone FR	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	1,001-5,000	803 contacts →
	Indirect evidence “Synchrone apporte son expertise en Consulting, Data Expertise et Digital Experience à ses clients grands comptes.” Source: RevenueBase Database · checked Sep 26, 2026
9	Meritis	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	501-1,000	549 contacts →
	Indirect 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 26, 2026
10	Ippon Technologies	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	510 contacts →
	Indirect evidence “USING OUR COLLECTIVE ENERGY FOR POSITIVE TECHNOLOGY Ippon is a consulting and expertise firm, who is convinced that technology is a source of progress for society.” Source: RevenueBase Database · checked Sep 26, 2026
11	Proxiad	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	501-1,000	461 contacts →
	Indirect evidence “Créée en 1997, Proxiad est une société de Conseil et d'Expertise dans les nouvelles technologies et les systèmes d'information.” Source: RevenueBase Database · checked Sep 26, 2026
12	Zenika	Partial evidence	Paris, FranceHQ checked Sep 26, 2026	501-1,000	430 contacts →
	Partial evidence “Zenika is an IT consulting firm with 550 employees that helps companies with their digital transformation.” Source: RevenueBase Database · checked Sep 26, 2026
13	Wevioo	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	413 contacts →
	Indirect evidence “Créé en 1998, Wevioo est un groupe international de conseil et de services numériques qui accompagne ses clients dans leurs défis d’innovation, de transformation et de performance…” Source: RevenueBase Database · checked Sep 26, 2026
14	Objectware	Partial evidence	Paris, FranceHQ checked Sep 26, 2026	501-1,000	395 contacts →
	Partial 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 26, 2026
15	Ataway	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	394 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 26, 2026
16	LÙKLA	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	501-1,000	331 contacts →
	Indirect evidence “Together, aiming higher and going further to unlock your potential.” Source: RevenueBase Database · checked Sep 26, 2026
17	Magellan Consulting	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	313 contacts →
	Indirect evidence “Magellan Consulting devient Magellan!” Source: RevenueBase Database · checked Sep 26, 2026
18	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	279 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 26, 2026
19	Advancy	Partial evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	269 contacts →
	Partial evidence “Established in Advancy is a leading international management consultancy firm with offices in Boston, Frankfurt, London, New-York, Paris, São Paulo, Shanghai, Singapore and…” Source: RevenueBase Database · checked Sep 26, 2026
20	Ouidou	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	252 contacts →
	Indirect evidence “Fondée en 2017, Ouidou est une entreprise de services du numérique regroupant plus de 250 collaborateurs.” Source: RevenueBase Database · checked Sep 26, 2026
21	Theodo	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	501-1,000	236 contacts →
	Indirect evidence “A Theodo, toute notre énergie est tournée vers la satisfaction de nos clients.” Source: RevenueBase Database · checked Sep 26, 2026
22	Business At Work	Partial evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	232 contacts →
	Partial evidence “Business At Work is a management and information systems consultancy company offering a range of services entirely focused towards the optimisation of the internal functions of…” Source: RevenueBase Database · checked Sep 26, 2026
23	Ailancy	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	201-500	226 contacts →
	Indirect evidence “Ailancy is a top-specialist and fast-growing management-consulting firm specialized in the financial services industry and headquartered in Paris.” Source: RevenueBase Database · checked Sep 26, 2026
24	Iliade Consulting	Partial evidence	Paris, FranceHQ checked Sep 26, 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 26, 2026
25	Meltone Advisory	Indirect evidence	Paris, FranceHQ checked Sep 26, 2026	51-200	206 contacts →
	Indirect evidence “MeltOne is a consulting firm specialized in Organization and Solution Integration that helps companies and their employees in journey toward their transformation.” Source: RevenueBase Database · checked Sep 26, 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 consultancy services. 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 consultancy services.
Partial evidence: Its own public description names part of IT consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT consultancy services. 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 1,515 IT consultancy services based in Paris, France

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IT consultancy services based in Paris, France at a glance

As of Sep 26, 2026

41.9%Verified-email coverage

248.0Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Paris

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

812

11-50

455

51-200

153

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole France list rather than for Paris, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 1,515 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 consultancy 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 Paris, France whose own description of what they do matches “IT consultancy 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 consultancy 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 consultancy services, and records with no verified work email. Companies headquartered outside Paris 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, 157,266 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 26, 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 consultancy services by metro in France

IT consultancy services in Paris1515
IT consultancy services in Lyon194
IT consultancy services in Toulouse103
IT consultancy services in Bordeaux71
IT consultancy services in Nantes70
IT consultancy services in Boulogne-Billancourt66
IT consultancy services in Lille58
IT consultancy services in Marseille55
IT consultancy services in Neuilly-Sur-Seine55
IT consultancy services in Courbevoie52
IT consultancy services in Puteaux46
IT consultancy services in Levallois-Perret40
IT consultancy services in Montpellier34
IT consultancy services in Nanterre31
IT consultancy services in Rennes31
IT consultancy services in Strasbourg30
IT consultancy services in Issy-Les-Moulineaux28
IT consultancy services in Boulogne Billancourt27
IT consultancy services in Villeurbanne25

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 consultancy 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 consultancy services are there based in Paris, France?

RevenueBase identified 1,515 IT consultancy services headquartered in Paris, 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 consultancy services?

Paris leads with 1515 headquartered companies, followed by Lyon (194) and Toulouse (103).

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 157,266 verified decision-maker contacts tracked across these 1,515 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 26, 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.