Company lists · Data refreshed September 2026

Top 25 Business consultancies based in Nantes, France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 174 companies tracked

RevenueBase identified 174 business consultancies headquartered in Nantes, France as of September 2026 and tracks 738 professional contacts across them, including 324 with verified work emails. Across France, Paris is the largest hub for this category (3,155 companies); Nantes has 174.

This list covers business 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 23, 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 23, 2026 86% judged on-target in blind review

174Companies

738Contacts tracked

324Verified emails

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The 25 largest business consultancies based in Nantes, France

Ranked by team size

Top 25 of 174 business consultancies based in Nantes, France, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Exeis Conseil	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	51-200	97 contacts →
	Indirect evidence “Support organizations in the mastery and success of their transformations.” Source: RevenueBase Database · checked Sep 23, 2026
2	OZEO	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	51-200	51 contacts →
	Indirect evidence “Cabinet d'Expertise Comptable né du rapprochement des deux cabinets Fradin & Associés et Secogerec, installés au centre ville de Nantes et en Sud Loire, Ozéo travaille aux côtés…” Source: RevenueBase Database · checked Sep 23, 2026
3	ONE ACE Expertise Comptable	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	51-200	49 contacts →
	Indirect evidence “Nous, c’est One Ace.” Source: RevenueBase Database · checked Sep 23, 2026
4	Audencia Junior Conseil	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	49 contacts →
	Indirect evidence “Audencia Junior Conseil, Junior Entreprise de l’école de commerce Audencia Nantes, réalise depuis plus de 30 ans des prestations de conseil : étude de marché, étude de…” Source: RevenueBase Database · checked Sep 23, 2026
5	SK Willing	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	29 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 23, 2026
6	LGP Conseil	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	21 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 23, 2026
7	Nepsio Conseil	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	20 contacts →
	Indirect 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 23, 2026
8	Eliteorga	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	18 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 23, 2026
9	Cayola Consulting	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	15 contacts →
	Indirect evidence “CAYOLA est un cabinet indépendant accompagnant dirigeants et entreprises dans leurs enjeux stratégiques, économiques, financiers et organisationnels.” Source: RevenueBase Database · checked Sep 23, 2026
10	KER	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	14 contacts →
	Indirect evidence “Cabinet d'Expertise Comptable sur Nantes.” Source: RevenueBase Database · checked Sep 23, 2026
11	Canévet ET Associés	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	13 contacts →
	Indirect evidence “Canévet et associés a pour vocation d’accompagner les entreprises et institutions publiques, les universités et grandes écoles, dans leur stratégie de communication et la…” Source: RevenueBase Database · checked Sep 23, 2026
12	Inöweeno	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	9 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 23, 2026
13	Amnis Consulting	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	9 contacts →
	Indirect evidence “Créé en 2012, AMNIS Consulting est un cabinet de conseil en management et projets de transformation.” Source: RevenueBase Database · checked Sep 23, 2026
14	Teodym	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	9 contacts →
	Indirect evidence “TEODYM vous aide à vendre PLUS et MIEUX votre établissement Vous développez votre activité et vous souhaitez en maximiser le profit TEODYM est votre partenaire de proximité 🤝…” Source: RevenueBase Database · checked Sep 23, 2026
15	Artesial Consultants	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	8 contacts →
	Indirect evidence “Artésial consultants est un cabinet de conseil spécialisé dans la performance industrielle des industries de l’agro-alimentaire, de la cosmétique et de la pharmacie.” Source: RevenueBase Database · checked Sep 23, 2026
16	The Human Consulting Group	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	8 contacts →
	Indirect evidence “The Human Consulting Group - HCG, Société de Conseil en stratégie spécialisée en Relation Client.” Source: RevenueBase Database · checked Sep 23, 2026
17	Metaphore	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	7 contacts →
	Indirect evidence “Métaphore est un cabinet de formation, conseil et coaching dans les domaines du commercial, du management et du comportemental.” Source: RevenueBase Database · checked Sep 23, 2026
18	Baobab Factory	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	7 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 23, 2026
19	UDW	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	7 contacts →
	Indirect evidence “Up Down Wind Think, Plan and Excute your Performance 20 consultants for U!” Source: RevenueBase Database · checked Sep 23, 2026
20	Ec&u	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	6 contacts →
	Indirect evidence “Cabinet spécialisé en urbanisme commercial, EC & U conseille et accompagne depuis 2003 les enseignes et les promoteurs dans toutes les phases d’élaboration de leurs projets…” Source: RevenueBase Database · checked Sep 23, 2026
21	Adeo Conseil & Finance	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	5 contacts →
	Indirect evidence “Nous accompagnons des dirigeants de PME sur leurs sujets de finance : recherche de financement, levée de fonds, structuration d'opérations complexes, accompagnement dans la durée…” Source: RevenueBase Database · checked Sep 23, 2026
22	Majorelle RH	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	11-50	5 contacts →
	Indirect evidence “Majorelle RH est un cabinet de conseil en stratégie et organisation RH.” Source: RevenueBase Database · checked Sep 23, 2026
23	Bossman Consultants	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	5 contacts →
	Indirect evidence “Depuis 20 ans, notre cabinet met son expertise au service des entreprises du secteur des produits de grande consommation (industriels des PGC, acteurs du food service…” Source: RevenueBase Database · checked Sep 23, 2026
24	AMI Coach PRO	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	5 contacts →
	Indirect evidence “Derrière chaque leader, vous trouverez un stratège l’accompagnant à révéler et à valoriser ses compétences!” Source: RevenueBase Database · checked Sep 23, 2026
25	GSE Conseil	Indirect evidence	Nantes, FranceHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “Notre Cabinet GSE CONSEIL propose une large déclinaison de prestations de conseil RH avec le recrutement pour cœur de métier.” Source: RevenueBase Database · checked Sep 23, 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: business consultancies. 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 business consultancies.
Partial evidence: Its own public description names part of business consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business consultancies. 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 174 business consultancies based in Nantes, France

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Business consultancies based in Nantes, France at a glance

As of Sep 23, 2026

43.9%Verified-email coverage

4.2Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

147

11-50

51-200

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 174 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 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 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 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 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, 324 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 23, 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 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 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 consultancies are there based in Nantes, France?

RevenueBase identified 174 business 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?

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

Which city in France has the most business consultancies?

Paris leads France with 3,155 headquartered companies, followed by Lyon (425) and Toulouse (236). Nantes has 174.

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 324 verified decision-maker contacts tracked across these 174 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 23, 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.