Company lists · Data refreshed September 2026
Top 25 B2B consultancies based in Nantes, France
RevenueBase identified 148 B2B consultancies headquartered in Nantes, France as of September 2026 and tracks 776 professional contacts across them, including 252 with verified work emails. Paris is the largest hub.
This list covers B2B 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.
The 25 largest B2B consultancies based in Nantes, France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 97 contacts → | ||||
Indirect evidence “Support organizations in the mastery and success of their transformations.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 2 | 62 contacts → | ||||
Indirect evidence “Cabinet de conseil et d’ingénierie spécialisé dans les métiers du Système d’Information et de l’Industrie, créé en janvier 2017 à Nantes, Capten propose 3 offres afin…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 18 contacts → | ||||
Indirect evidence “Yuzu Corp, Intégrateur CRM, RevOps & IA au service des équipes commerciales.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 8 | 16 contacts → | ||||
Indirect evidence “Les activités de MERCURIAL S.A.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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, 2026Thanks. The Data Team will review it. | |||||
| 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 contacts → | ||||
Indirect evidence “The Human Consulting Group - HCG, Société de Conseil en stratégie spécialisée en Relation Client.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 contacts → | ||||
Indirect evidence “Agence MD vous accompagne dans votre stratégie globale de marketing relationnel.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 14 | 8 contacts → | ||||
Indirect 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 23, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Indirect evidence “Up Down Wind Think, Plan and Excute your Performance 20 consultants for U!” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “J'ai 2 lignes pour te donner envie de lire la suite.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Indirect evidence “Bureau d'études nantais, nous sommes spécialisés dans les missions de synthèse, grâce à l'expérience de nos spécialistes techniques et architecturaux.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Indirect evidence “MDC optimise votre capital client en « revisitant » vos données clients et vos actions marketing-ventes.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 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 23, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence “One Bridge et Associés est un Cabinet de conseils en transmission d'entreprises intervenant aussi bien en accompagnement sur des problématiques de développement via la croissance…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Indirect evidence “C2M est une agence de prospection commerciale à destination des entreprises ayant des produits ou services complexes à promouvoir.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
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: B2B 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 B2B consultancies.
- Partial evidence
- Its own public description names part of B2B consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name B2B 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 148 B2B consultancies based in Nantes, France
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B2B consultancies based in Nantes, France at a glance
As of Sep 23, 2026Companies by employee count
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 148 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 B2B 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 “B2B 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 B2B 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 B2B 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, 252 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.
B2B consultancies by metro in France
- B2B consultancies in Paris2905
- B2B consultancies in Lyon416
- B2B consultancies in Toulouse199
- B2B consultancies in Bordeaux180
- B2B consultancies in Nantes148
- B2B consultancies in Marseille124
- B2B consultancies in Lille110
- B2B consultancies in Montpellier85
- B2B consultancies in Rennes85
- B2B consultancies in Strasbourg85
- B2B consultancies in Boulogne-Billancourt77
- B2B consultancies in Neuilly-Sur-Seine62
- B2B consultancies in Courbevoie50
- B2B consultancies in Nice49
- B2B consultancies in Aix En Provence47
- B2B consultancies in Annecy45
- B2B consultancies in Levallois-Perret44
- B2B consultancies in Angers43
- B2B consultancies in Aix-En-Provence41
- B2B consultancies in Grenoble41
- B2B consultancies in Puteaux38
- B2B consultancies in Versailles37
- B2B consultancies in Boulogne Billancourt32
- B2B consultancies in France32
- B2B consultancies in Caen30
- B2B consultancies in Tours30
- B2B consultancies in Metz28
- B2B consultancies in Rouen28
- B2B consultancies in Issy-Les-Moulineaux27
- B2B consultancies in Reims27
- B2B consultancies in Rueil-Malmaison27
- B2B consultancies in Neuilly Sur Seine26
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 B2B 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 B2B consultancies are there based in Nantes, France?
RevenueBase identified 148 B2B 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 has the most B2B consultancies?
Paris leads with 2905 headquartered companies, followed by Lyon (416) and Toulouse (199).
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 252 verified decision-maker contacts tracked across these 148 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.