Company lists · Data refreshed September 2026

Top 13 Management consulting companies based in Nantes, France

This directory contains 62 management consulting companies based in Nantes, France, with business contacts including 293 contacts and 124 email addresses. Paris is the single most-represented city among the companies listed, and the directory was updated in September 2026.

Management consulting companies advise organizations on strategy, operations, organizational design, performance, and other business management decisions. This list covers companies that provide consulting services focused on improving an organization's management, strategy, operations, or business performance. Ranked by team size, largest first. Data current as of September 13, 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 13, 2026 86% judged on-target in blind review
62Companies
293Contacts tracked
124Verified emails
16Mobile numbers
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The 13 largest management consulting companies based in Nantes, France

Ranked by team size
Top 13 of 62 management consulting companies based in Nantes, France, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to management consulting companies: 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 13, 202651-20097 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 13, 2026
2Strong evidenceNantes, FranceHQ checked Sep 13, 202611-5029 contacts →

Strong 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 13, 2026
3Indirect evidenceNantes, FranceHQ checked Sep 13, 202611-5020 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 13, 2026
4Partial evidenceNantes, FranceHQ checked Sep 13, 202611-5018 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 13, 2026
5Indirect evidenceNantes, FranceHQ checked Sep 13, 202611-5015 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 13, 2026
6Strong evidenceNantes, FranceHQ checked Sep 13, 20261-109 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 13, 2026
7Indirect evidenceNantes, FranceHQ checked Sep 13, 20261-107 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 13, 2026
8Indirect evidenceNantes, FranceHQ checked Sep 13, 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 13, 2026
9Indirect evidenceNantes, FranceHQ checked Sep 13, 20261-102 contacts →

Indirect 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: RevenueBase Database · checked Sep 13, 2026
10Indirect evidenceNantes, FranceHQ checked Sep 13, 20261-101 contacts →

Indirect evidence

“Fort d'une expérience riche et diversifiée, impliquant plus d'une centaine de Managers et d'Entrepreneurs, nous avons développé une expertise au gré des défis proposés dans la…”

Source: RevenueBase Database · checked Sep 13, 2026
11Indirect evidenceNantes, FranceHQ checked Sep 13, 20261-101 contacts →

Indirect evidence

“HISacto transforme les modes de fonctionnement des entreprises en conjuguant de manière systémique les trois ingrédients essentiels que sont - l'Humain les dirigeants recherchent…”

Source: RevenueBase Database · checked Sep 13, 2026
12Partial evidenceNantes, FranceHQ checked Sep 13, 20261-101 contacts →

Partial evidence

“Accompagner les entreprises et organisations qui évoluent ou se transforment- Conseil en management et en transformation - Coaching - Formation”

Source: RevenueBase Database · checked Sep 13, 2026
13Indirect evidenceNantes, FranceHQ checked Sep 13, 20261-101 contacts →

Indirect evidence

“Cabinet de Conseil et Accompagnement en projets de transformation et d'organisation des ressources numériques”

Source: RevenueBase Database · checked Sep 13, 2026

Showing 13 of 62 management consulting companies based in Nantes, France

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Management consulting companies based in Nantes, France at a glance

As of Sep 13, 2026
42.3%Verified-email coverage
5.5%Mobile-number coverage
4.7Average contacts per company
1-10Median size (employees)
2743.5%Largest-city concentration · Paris
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
51
11-50
7
51-200
3

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 16.0d

Company record updated

Median 50.0d

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 management consulting companies, 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 “management consulting companies”. 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 management consulting companies), 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 management consulting companies, 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, 124 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 13, 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.

Management consulting companies by metro in France

Frequently asked

How many management consulting companies are in the directory?

The directory includes 62 management consulting companies based in Nantes, France.

Where are the management consulting companies located?

The companies are located based in Nantes, France, with Paris as the single most-represented city among the companies listed.

Can I find contacts and email addresses for management consulting companies?

Yes, the directory includes 293 business contacts and 124 email addresses for the listed companies.

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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.