Company lists · Data refreshed August 2026

Top 18 Business intelligence consulting firms based in Nantes, France

Name: Business intelligence consulting firms based in Nantes, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 42 companies tracked

There are 42 business intelligence consulting firms headquartered in Nantes, France (RevenueBase, August 2026). RevenueBase tracks 946 professional contacts across them, including 537 with verified work emails and 22 with mobile numbers. Paris is the largest hub.

This list covers business intelligence consulting firms headquartered in Nantes, 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 August 30, 2026.

42Companies

946Contacts tracked

537Verified emails

22Mobile numbers

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The 18 largest business intelligence consulting firms based in Nantes, France

Ranked by team size

Top 18 of 42 business intelligence consulting firms based in Nantes, France, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names business intelligence 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	Verified emails
1	CellenzaIndirect evidence “Cellenza est un cabinet de Conseil IT et de réalisation, expert du Cloud Microsoft.” Source: company website · checked Aug 30, 2026	Nantes, France	201-500	232	120
2	ValeuriadIndirect evidence “Valeuriad - valeurs, innovation & digital Notre vocation Plus qu’une compétence technique, nous apportons à nos clients un réel savoir-faire et savoir-être.” Source: company website · checked Aug 30, 2026	Nantes, France	51-200	148	98
3	AurexiaPartial evidence “Since May 2025, Aurexia has been part of Sopra Steria Next, the management consulting arm of Sopra Steria Group, a major European tech leader.” Source: company website · checked Aug 30, 2026	Nantes, France	10001+	146	94
4	DecivisionIndirect evidence “DeciVision est une ESN créée en 2006 comptant aujourd’hui 100 collaborateurs sur Toulouse, Paris, Bordeaux, Nantes, Lyon et Lille.” Source: company website · checked Aug 30, 2026	Nantes, France	51-200	96	68
5	PolarysIndirect evidence “Offrir la meilleure expérience analytique à nos clients" Polarys est une filiale de Silamir Group, qui accompagne la transformation des métiers de ses clients en hybridant les…” Source: company website · checked Aug 30, 2026	Nantes, France	51-200	75	34
6	AgiledssPartial evidence “Big Data \| Business Intelligence \| DevOps \| Cloud agileDSS is a collective of multidisciplinary experts who guide you in the implementation of your analytics ecosystem to support…” Source: company website · checked Aug 30, 2026	Nantes, France	51-200	63	42
7	IteractiiIndirect evidence “Iteractii vous accompagne dans tous vos défis customer experience Ensemble, nous bâtissons une expérience client authentique, mémorable et responsable, en combinant le meilleur de…” Source: company website · checked Aug 30, 2026	Nantes, France	201-500	31	7
8	Rubix ConsultingIndirect evidence “SAP solutions integrator” Source: company website · checked Aug 30, 2026	Nantes, France	11-50	26	19
9	ValowayIndirect evidence “Valoway est une société de conseil et d'intégration de solutions innovantes spécialisée dans la valorisation des données et les solutions Cloud.” Source: company website · checked Aug 30, 2026	Nantes, France	11-50	24	17
10	Cayola ConsultingIndirect evidence “CAYOLA est un cabinet indépendant accompagnant dirigeants et entreprises dans leurs enjeux stratégiques, économiques, financiers et organisationnels.” Source: company website · checked Aug 30, 2026	Nantes, France	11-50	15	14
11	IOD SolutionsIndirect evidence “Nous sommes convaincus que la pérennité d’une entreprise se construit désormais sur sa capacité à prendre des décisions éclairées en exploitant pleinement les informations…” Source: company website · checked Aug 30, 2026	Nantes, France	11-50	15	5
12	InöweenoIndirect evidence “Modèle hybride entre le savoir-faire métier des cabinets de conseil et la maîtrise technologique des ESN, Inöweeno et ses Digital Lovers sont à vos côtés sur tous les aspects de…” Source: company website · checked Aug 30, 2026	Nantes, France	1-10	9	6
13	SkilliaStrong evidence “SKILLIA is the Tech Consulting Company that places Artificial Intelligence at the heart of its clients’ digital transformation.” Source: company website · checked Aug 30, 2026	Nantes, France	11-50	9	3
14	Fobware SIIndirect evidence “Basée à Nantes depuis 2012, FOBware SI est une société de services et de conseils en systèmes d’information à taille humaine.” Source: company website · checked Aug 30, 2026	Nantes, France	1-10	8	4
15	Finance ET VousIndirect evidence “Bienvenue à bord de Finance et Vous Yannick MARTIN, passionné de voile et de finance, a créé le cabinet Finance et Vous en 2018 pour aider des amis à monter leur startup Après un…” Source: company website · checked Aug 30, 2026	Nantes, France	1-10	3	2
16	AdvaliansIndirect evidence “Né de la volonté de guider les entreprises dans leurs décisions stratégiques en marketing, communication et digital, le Cabinet Advalians s’érige comme un phare dans un monde en…” Source: company website · checked Aug 30, 2026	Nantes, France	1-10	3	1
17	Sycomore AdvisoryIndirect evidence “Sycomore Advisory, ce sont quatre domaines d'expertise complémentaires - Services de transaction / Transaction services * Évaluation d'entreprise : obtenir une valeur objective de…” Source: company website · checked Aug 30, 2026	Nantes, France	1-10	2	1
18	Attractiv-ItIndirect evidence “Et si votre ERP devenait un vrai levier de rentabilité pour votre PME?” Source: company website · checked Aug 30, 2026	Nantes, France	1-10	1	1

Showing 18 of 42 business intelligence consulting firms based in Nantes, France

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Business intelligence consulting firms based in Nantes, France at a glance

As of Aug 30, 2026

1-10Median size (employees)

ParisLargest hub · 917 HQs

22Contacts with mobile numbers

Aug 30, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Business intelligence consulting firms by metro in France

Metro	Companies
Business intelligence consulting firms in Paris	917
Business intelligence consulting firms in Lyon	121
Business intelligence consulting firms in Bordeaux	59
Business intelligence consulting firms in Nantes	43
Business intelligence consulting firms in Toulouse	39
Business intelligence consulting firms in Marseille	33
Business intelligence consulting firms in Neuilly-Sur-Seine	28

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 business intelligence 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: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in Nantes, France whose own description of what they do matches “business intelligence 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 business intelligence consulting firms, and records with no verified work email. Companies headquartered outside Nantes 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.
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, 537 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 August 30, 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

How many business intelligence consulting firms are there based in Nantes, France?

There are 42 business intelligence consulting firms headquartered in Nantes, France as of August 2026 (RevenueBase).

What is the largest company on this list?

Cellenza, headquartered in Nantes, tops this list with the largest team on record.

Which city has the most business intelligence consulting firms?

Paris leads with 917 headquartered companies, followed by Lyon (121) and Bordeaux (59).

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 537 verified decision-maker contacts tracked across these 42 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.