Company lists · Data refreshed September 2026

Top 25 IT consulting firms based in Boulogne-Billancourt, France

Name: IT consulting firms based in Boulogne-Billancourt, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 50 companies tracked

RevenueBase identified 50 IT consulting firms headquartered in Boulogne-Billancourt, France as of September 2026 and tracks 1,052 professional contacts across them, including 276 with verified work emails. Paris is the largest hub.

This list covers IT consulting firms headquartered in Boulogne-Billancourt, 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

50Companies

1,052Contacts tracked

276Verified emails

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The 25 largest IT consulting firms based in Boulogne-Billancourt, France

Ranked by team size

Top 25 of 50 IT consulting firms based in Boulogne-Billancourt, France, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT 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	Agap2it FrancePartial evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	1,001-5,000	167
	“Fondée en 2005, agap2 IT est une société de conseil en Systèmes d’Information d’envergure européenne (France, Portugal, Suisse et Espagne).” Source: company website · checked Sep 4, 2026
2	Delane SIIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	201-500	114
	“Delane SI est une société de conseil et de services informatiques spécialisée dans les secteurs Banque, Assurance et Finance de Marchés.” Source: company website · checked Sep 4, 2026
3	Alfi Financial Markets Consultancy ServicesIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	201-500	80
	“ALFI est une société de Services en Systèmes d'Information spécialisée sur les marchés financiers.” Source: company website · checked Sep 4, 2026
4	Symolia TechnologiesIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	51-200	69
	Source: company website · checked Sep 4, 2026
5	Tekneum By AstekIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	n/a	47
	“Créé en France en 2022, Tekneum est un cabinet de conseil spécialisé sur les métiers du technicien : support, helpdesk, datacenter, poste de travail, déploiement, systèmes et…” Source: company website · checked Sep 4, 2026
6	DCUBEIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	36
	“DCube est un cabinet de conseil spécialisé des technologies Microsoft.” Source: company website · checked Sep 4, 2026
7	ArcitekIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	34
	“Welcome to arcITek!” Source: company website · checked Sep 4, 2026
8	EpigoneIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	51-200	33
	“Société de conseil spécialisée en banque, finance et assurance Epigone accompagne ses clients sur des enjeux métiers et technologiques à forte valeur ajoutée.” Source: company website · checked Sep 4, 2026
9	MpulsePartial evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	51-200	32
	“Chez mpulse, nous avons une conviction : la réussite des transformations passe par des Directions IT, IS et Digitales capables de se concentrer sur leur vision stratégique, tout…” Source: company website · checked Sep 4, 2026
10	Adroma ConseilIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	17
	“ADROMA CONSEIL est un cabinet de conseil en organisation et management des systèmes d’information et transformation digitale.” Source: company website · checked Sep 4, 2026
11	EffixioIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	51-200	15
	“Créé en 2009, le Groupe Effixio est un nouvel opérateur global spécialisé dans les N.T.I.C ayant un positionnement de multi spécialiste à haute valeur ajoutée.” Source: company website · checked Sep 4, 2026
12	IxemelisIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	12
	“IXEMELIS a pour vocation d'accompagner les entreprises et leurs collaborateurs dans le choix, le déploiement, l'utilisation et l'exploitation d'outils informatique de gestion de…” Source: company website · checked Sep 4, 2026
13	AldisaIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	11
	“Aldisa est une entreprise de services numériques (ESN) à taille humaine, spécialisée dans l’infrastructure des systèmes d’information.” Source: company website · checked Sep 4, 2026
14	Filodoxia ITPartial evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	10
	“Filodoxia IT est une entreprise de services du numérique qui propose des services de conseil et d’expertise en informatique à des clients issus de divers secteurs d’activité.” Source: company website · checked Sep 4, 2026
15	Ethic-TechnologyPartial evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	1-10	10
	“Ethic Technology is a digital transformation consulting company.” Source: company website · checked Sep 4, 2026
16	AgylisIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	201-500	10
	“Agylis rejoint Reactis!” Source: company website · checked Sep 4, 2026
17	Square SystemIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	9
	“Square a pour ambition d’accompagner les entreprises dans la modernisation de leur système d’information et leur mouvement vers l’hybridation de leur infrastructure.” Source: company website · checked Sep 4, 2026
18	GwelltekIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	1-10	9
	“Créée en mai 2010, Gwelltek est une société à taille humaine tournée vers le conseil et l'intégration.” Source: company website · checked Sep 4, 2026
19	AthlingIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	1-10	8
	“Vous voulez développer plus de valeur, rendre performante votre chaîne de valeur pour mieux la capter, optimiser le partage de valeur?” Source: company website · checked Sep 4, 2026
20	IridisIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	201-500	7
	“Serveurs Iridis a développé son expertise dans le domaine des serveurs.” Source: company website · checked Sep 4, 2026
21	KeynitIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	7
	“Notre philosophie Crée en 1994, KEYNIT est un centre de compétences informatiques 360° pour les PME L’ambition de KEYNIT est de permettre à ses clients de faire de leur système…” Source: company website · checked Sep 4, 2026
22	TribordIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	6
	“Tribord accompagne les entreprises tout au long de leur démarche informatique.” Source: company website · checked Sep 4, 2026
23	Third Level FranceIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	4
	“Third Level est une société de conseils spécialisée en Telecom, Systèmes d'Information, et Data Science.” Source: company website · checked Sep 4, 2026
24	Le16itIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	4
	“De l'idée au projet le 16it apporte son expertise à chaque étape de sa réalisation.” Source: company website · checked Sep 4, 2026
25	CygitalIndirect evidence	Boulogne-Billancourt, FranceHQ checked Sep 4, 2026	11-50	3
	“NOTRE VOCATION : Comprendre le métier et les besoins de nos clients, proposer et mettre à disposition le savoir-faire de nos talents, pour atteindre les objectifs fixés par nos…” Source: company website · checked Sep 4, 2026

Showing 25 of 50 IT consulting firms based in Boulogne-Billancourt, France

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IT consulting firms based in Boulogne-Billancourt, France at a glance

As of Sep 4, 2026

11-50Median size (employees)

ParisLargest hub · 1355 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole France list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Boulogne-Billancourt, over 50 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 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 Boulogne-Billancourt, France whose own description of what they do matches “IT 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 consulting firms, and records with no verified work email. Companies headquartered outside Boulogne-Billancourt 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, 276 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 consulting firms by metro in France

IT consulting firms in Paris1355
IT consulting firms in Lyon187
IT consulting firms in Toulouse88
IT consulting firms in Nantes63
IT consulting firms in Bordeaux59
IT consulting firms in Marseille56
IT consulting firms in Lille54
IT consulting firms in Courbevoie52
IT consulting firms in Boulogne-Billancourt50
IT consulting firms in Neuilly-Sur-Seine50
IT consulting firms in Montpellier43
IT consulting firms in Puteaux39
IT consulting firms in Levallois-Perret30
IT consulting firms in Strasbourg30
IT consulting firms in Nanterre29
IT consulting firms in Rennes29
IT consulting firms in Grenoble28
IT consulting firms in Boulogne Billancourt27

Frequently asked

How many IT consulting firms are there based in Boulogne-Billancourt, France?

RevenueBase identified 50 IT consulting firms headquartered in Boulogne-Billancourt, 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?

Agap2it France, headquartered in Boulogne-Billancourt, tops this list with the largest team on record.

Which city has the most IT consulting firms?

Paris leads with 1355 headquartered companies, followed by Lyon (187) and Toulouse (88).

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 276 verified decision-maker contacts tracked across these 50 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.