Company lists · Data refreshed September 2026

Top 25 Business transformation consultancies based in Nantes, France

RevenueBase identified 114 business transformation consultancies headquartered in Nantes, France as of September 2026 and tracks 919 professional contacts across them, including 400 with verified work emails. Paris is the largest hub.

This list covers business transformation consultancies 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 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 20, 2026 86% judged on-target in blind review
114Companies
919Contacts tracked
400Verified emails
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The 25 largest business transformation consultancies based in Nantes, France

Ranked by team size
Top 25 of 114 business transformation consultancies based in Nantes, France, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to business transformation consultancies: 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
1Indirect evidenceNantes, FranceHQ checked Sep 20, 202651-200145 contacts →

Indirect 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: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceNantes, FranceHQ checked Sep 20, 202651-200131 contacts →

Indirect evidence

“Nous sommes une Tribu de passionné·e·s qui accompagnons les entreprises dans la conception et la réalisation de produits digitaux avec des solutions innovantes, humaines et…”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceNantes, FranceHQ checked Sep 20, 202651-20097 contacts →

Partial evidence

“Support organizations in the mastery and success of their transformations.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceNantes, FranceHQ checked Sep 20, 202611-5057 contacts →

Indirect evidence

“Depuis 2009, CAHRA, rattachée au groupe UPWARD, développe et porte un métier : le management de la transition.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceNantes, FranceHQ checked Sep 20, 202611-5029 contacts →

Indirect evidence

“Cabinet de conseil en organisation et management, SK Consulting est implanté à Nantes et Niort et accompagne de nombreux acteurs de la région Grand Ouest dans leurs projets de…”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceNantes, FranceHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

“Entreprise de Service du Numérique spécialisée en innovation, Mood Conseil recherche de nouveaux talents pour constituer ses équipes Nantaises!”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-1022 contacts →

Indirect evidence

“APC Management est un cabinet de formation et de conseil en management, commerce et développement personnel.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceNantes, FranceHQ checked Sep 20, 202611-5021 contacts →

Indirect evidence

“Nous sommes un cabinet de conseil en management des organisations animé par une conviction profonde : la performance durable de l’entreprise passe avant tout par son développement…”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceNantes, FranceHQ checked Sep 20, 202611-5020 contacts →

Partial evidence

“Acteur de référence en Pays de la Loire, NEPSIO Conseil est un cabinet de stratégie et de conseil spécialisé en transformation (organisationnelle, RH et digitale).”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceNantes, FranceHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“EliteOrga est un cabinet de conseil et formation en organisation et management à Nantes et à Lille.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceNantes, FranceHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“Mieux vaut Tête bien faite que tête bien pleine – M.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceNantes, FranceHQ checked Sep 20, 202611-5012 contacts →

Indirect evidence

“ModalB accompagne les entreprises dans leurs projets numériques 🤝 ModalB est une société de conseil et de service en IT qui met son expertise au service de ses clients pour…”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceNantes, FranceHQ checked Sep 20, 202611-5012 contacts →

Indirect evidence

“Chez Frennly, nous nous sommes donné pour mission de transformer les contraintes des organisations en temps utile.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceNantes, FranceHQ checked Sep 20, 202611-5012 contacts →

Partial evidence

“Chez Tribu, nous accompagnons les entreprises de l'Ouest de la France (nous sommes basés à Nantes) dans la transformation des façons de travailler.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-1011 contacts →

Indirect evidence

“Arkup est une Société de Conseil en Architecture et Management des Systèmes d'Information uniquement spécialisée sur les métiers de la filière "architecte des systèmes…”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-109 contacts →

Indirect 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: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceNantes, FranceHQ checked Sep 20, 20261-109 contacts →

Partial evidence

“Créé en 2012, AMNIS Consulting est un cabinet de conseil en management et projets de transformation.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“Optimisez votre métier à travers les apports du numérique.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“Le numérique est aujourd’hui le premier enjeu stratégique des entreprises.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceNantes, FranceHQ checked Sep 20, 2026501-1,0008 contacts →

Partial evidence

“Audensiel Grand Ouest est le bureau régional d'Audensiel, cabinet de conseil en transformation digitale et conseil métiers IT sur tous les secteurs d'activité.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceNantes, FranceHQ checked Sep 20, 20261-107 contacts →

Partial evidence

“Vous avez une idée, une innovation ou une transformation à porter?”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

“Nous aidons nos clients à concevoir et déployer des dispositifs de changement pour réussir dans la complexité.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

“Up Down Wind Think, Plan and Excute your Performance 20 consultants for U!”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Besoin d échanger sur votre évolution digitale?”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceNantes, FranceHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Cabinet conseil en stratégie créé à Nantes, Actyvea accompagne depuis 2010 les PME et ETI à développer des stratégies innovantes, concevoir des offres innovantes centrées clients…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 114 business transformation consultancies based in Nantes, France

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Business transformation consultancies based in Nantes, France at a glance

As of Sep 20, 2026
43.5%Verified-email coverage
8.1Average contacts per company
1-10Median size (employees)
1950.9%Largest-city concentration · Paris
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
88
11-50
17
51-200
6
501-1,000
1

Email recency for this list is measured across the whole France list rather than for Nantes, so it is reported there. Company counts and contact totals on this page are exact for Nantes, over 114 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 business transformation consultancies, 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 Nantes, France whose own description of what they do matches “business transformation consultancies”. 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 business transformation consultancies), 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 business transformation consultancies, 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 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, 400 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 20, 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.

Business transformation consultancies by metro in France

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 business transformation consultancies, 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 business transformation consultancies are there based in Nantes, France?

RevenueBase identified 114 business transformation consultancies headquartered in Nantes, 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?

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

Which city has the most business transformation consultancies?

Paris leads with 2224 headquartered companies, followed by Lyon (282) and Toulouse (143).

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 400 verified decision-maker contacts tracked across these 114 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 20, 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.