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Company lists · Data refreshed September 2026

Top 25 Organizational development consulting firms based in Nantes, France

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 210 companies tracked

RevenueBase identified 210 organizational development consulting firms headquartered in Nantes, France as of September 2026 and tracks 7,066 professional contacts across them, including 378 with verified work emails. Paris is the largest hub.

This list covers organizational development 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 September 5, 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 5, 2026 86% judged on-target in blind review
210Companies
7,066Contacts tracked
378Verified emails
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The 25 largest organizational development consulting firms based in Nantes, France

Ranked by team size
Top 25 of 210 organizational development consulting firms based in Nantes, France, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names organizational development 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.
#CompanyHeadquartersEmployeesContacts
1
KanomaIndirect evidence
Nantes, FranceHQ checked Sep 5, 202651-200131

“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: company website · checked Sep 5, 2026
2
Exeis ConseilPartial evidence
Nantes, FranceHQ checked Sep 5, 202651-20097

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

Source: company website · checked Sep 5, 2026
3
CAHRAIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5057

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

Source: company website · checked Sep 5, 2026
4
SK WillingPartial evidence
Nantes, FranceHQ checked Sep 5, 202611-5029

“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: company website · checked Sep 5, 2026
5
H3o Richesses HumainesIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5027

“Le groupe H3O Richesses Humaines est l’alliance de trois spécialistes mobilisés autour d’une même ambition : Être le pôle d’expertise et de solutions de recrutements spécifiques…”

Source: company website · checked Sep 5, 2026
6
APC ManagementIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-1022

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

Source: company website · checked Sep 5, 2026
7
LGP ConseilIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5021

“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: company website · checked Sep 5, 2026
8
Anima NÉOIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5020

“Nous sommes spécialisés dans l’accompagnement des projets de transformation qui touchent à la culture, au management et à l’organisation des entreprises.”

Source: company website · checked Sep 5, 2026
9
Nepsio ConseilIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5020

“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: company website · checked Sep 5, 2026
10
EliteorgaIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5018

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

Source: company website · checked Sep 5, 2026
11
AlturionIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5016

“Alturion, cabinet de Conseil en Ressources Humaines spécialisé dans l’approche directe de Cadres et Cadres Dirigeants, propose une expertise poussée dans trois domaines : les…”

Source: company website · checked Sep 5, 2026
12
Cayola ConsultingIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5015

“CAYOLA est un cabinet indépendant accompagnant dirigeants et entreprises dans leurs enjeux stratégiques, économiques, financiers et organisationnels.”

Source: company website · checked Sep 5, 2026
13
Groupe MervalIndirect evidence
Nantes, FranceHQ checked Sep 5, 202611-5015

“Le Groupe Merval accompagne ses clients dans l’amélioration continue de la performance des équipes.”

Source: company website · checked Sep 5, 2026
14
IPSUMIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-1015

“Comment développer l'engagement des collaborateurs et une vision commune?”

Source: company website · checked Sep 5, 2026
15
ResecumIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-1013

“Management & qualité du vécu au travail : Accompagner les transformations de la relation travail, communication & management.”

Source: company website · checked Sep 5, 2026
16
Reso ServicesIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-1011

“RESO Services, filiale du Groupement d’Employeurs RESO France, est un cabinet conseil en ressources humaines.”

Source: company website · checked Sep 5, 2026
17
InöweenoIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-109

“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 Sep 5, 2026
18
Amnis ConsultingPartial evidence
Nantes, FranceHQ checked Sep 5, 20261-109

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

Source: company website · checked Sep 5, 2026
19
AccomplirIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-109

“Société de conseil, de coaching, de bilans de compétences et de formation en ressources humaines et management, créée en 2001 et spécialisée dans l'accompagnement des…”

Source: company website · checked Sep 5, 2026
20
WorklabIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-109

“Le WORKLAB, expert du travail collaboratif : cabinet de conseil, organisme de formation et animations d'ateliers et de séminaires Nos formations …”

Source: company website · checked Sep 5, 2026
21
NO PEN NO GainIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-109

“On mouille le maillot avec des accompagnements sur mesure, taillés pour relever vos challenges.”

Source: company website · checked Sep 5, 2026
22
Artesial ConsultantsIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-108

“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: company website · checked Sep 5, 2026
23
Groupe LOFIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-108

“Le Groupe Lof est une société de conseil pour le recrutement des cadres supérieurs et dirigeants.”

Source: company website · checked Sep 5, 2026
24
The Human Consulting GroupPartial evidence
Nantes, FranceHQ checked Sep 5, 202611-508

“The Human Consulting Group - HCG, Société de Conseil en stratégie spécialisée en Relation Client.”

Source: company website · checked Sep 5, 2026
25
1 Quai DES CompetencesIndirect evidence
Nantes, FranceHQ checked Sep 5, 20261-108

“L’essentiel pour nous, c’est Vous!”

Source: company website · checked Sep 5, 2026

Showing 25 of 210 organizational development consulting firms based in Nantes, France

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Organizational development consulting firms based in Nantes, France at a glance

As of Sep 5, 2026
1-10Median size (employees)
ParisLargest hub · 3055 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
181
11-50
22
51-200
5

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 Nantes, over 210 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 organizational development 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 Nantes, France whose own description of what they do matches “organizational development 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 organizational development 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. 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, 378 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 5, 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.

Organizational development consulting firms by metro in France

Frequently asked

How many organizational development consulting firms are there based in Nantes, France?

RevenueBase identified 210 organizational development consulting firms 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?

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

Which city has the most organizational development consulting firms?

Paris leads with 3055 headquartered companies, followed by Lyon (431) and Toulouse (225).

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 378 verified decision-maker contacts tracked across these 210 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 5, 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.

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