Company lists · Data refreshed October 2026

Top 15 Infrastructure project management consultancies based in Nantes, France

RevenueBase identified 40 company matches for infrastructure project management consultancies associated with Nantes, France as of October 2026 and tracks 864 professional contacts across them, including 508 with verified work emails. Across France, Paris is the largest hub for this category (428 companies); Nantes has 40.

This list covers company matches for infrastructure project management consultancies associated with Nantes, France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built
40Companies
864Contacts tracked
508Verified emails
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The 15 largest infrastructure project management consultancies based in Nantes, France

Ranked by team size
Top 15 of 40 company matches for infrastructure project management consultancies based in Nantes, France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNantes, FranceHQ recorded Oct 1, 2026501-1,000475 contacts →

Exact match

“Acteur de premier plan du secteur de l'ingénierie et du management d'infrastructures, le Groupe Edeis développe une vision innovante et durable, avec une promesse forte : être…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchNantes, FranceHQ recorded Oct 1, 202651-200106 contacts →

Exact match

“Présent depuis 2003 dans l’Ingénierie et l’Ingénierie-Conseil du Contrôle-Commande et Signalisation ferroviaire, SAFERAIL est aujourd’hui Leader dans son domaine en France.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchNantes, FranceHQ recorded Oct 1, 202611-5054 contacts →

Exact match

“Le Groupe Huit intervient depuis 1967, comme conseil auprès des gouvernements, des collectivités locales et des organismes de financement internationaux, dans plusieurs domaines…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchNantes, FranceHQ recorded Oct 1, 202611-5031 contacts →

Exact match

“ALTERESCO est un ensemblier qui porte des projets globaux de réhabilitation au travers de CPE (conception, travaux, exploitation, garantie de résultats).”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchNantes, FranceHQ recorded Oct 1, 2026501-1,00022 contacts →

Exact match

“Keran is an independent group composed of four companies – Sce, Creocean, Groupe Huit and Naomis – with complementary expertise and unified by shared values and ambitions.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchNantes, FranceHQ recorded Oct 1, 2026201-50019 contacts →

Exact match

“Natural Power, fort d’une expertise unique de plus de 20 ans en gestion de projet, est un prestataire indépendant de conseils et services pour la valorisation des énergies…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchNantes, FranceHQ recorded Oct 1, 202611-5013 contacts →

Exact match

“Tact travaille à l'intégration territoriale des projets d'intérêt général.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchNantes, FranceHQ recorded Oct 1, 20261-108 contacts →

Exact match

“Oppy International is a consulting firm specializing in marine projects, focusing on naval systems, maritime infrastructure, and floating structures across Europe, Canada, and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchNantes, FranceHQ recorded Oct 1, 20261-105 contacts →

Exact match

“Nous sommes un Cabinet de Conseil indépendant en Maîtrise d'Ouvrage.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchNantes, FranceHQ recorded Oct 1, 20261-104 contacts →

Exact match

“Basés à Nantes, nous sommes une société qui est née en 1995 du constat que l’acte de construire se complexifiait.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchNantes, FranceHQ recorded Oct 1, 20261-104 contacts →

Exact match

“Notre Mission?”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchNantes, FranceHQ recorded Oct 1, 20261-103 contacts →

Exact match

“Conseil en Construction Assistance à Maîtrise d'Ouvrage Domaines d'intervention: Génie Civil Ferroviaire, énergétique, maritime et fluvial Charpente métallique et revêtement…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchNantes, FranceHQ recorded Oct 1, 20261-103 contacts →

Exact match

“Cust’Home, maître d’œuvre à Nantes, donne vie à tous vos projets de rénovation, d’extension et de surélévation.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchNantes, FranceHQ recorded Oct 1, 20261-102 contacts →

Exact match

“TY CONSEIL se positionne comme société d’ingénierie et de conseil en technologie.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchNantes, FranceHQ recorded Oct 1, 20261-101 contacts →

Exact match

“Consultancy firm delivering contract solutions for the construction industry.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 15 of 40 infrastructure project management consultancies based in Nantes, France

See the full list, filter by size, metro and specialty, and access 508 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure project management consultancies based in Nantes, France at a glance

As of Oct 1, 2026
58.8%Verified-email coverage
21.6Average contacts per company
1-10Median size (employees)
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
6
51-200
2
201-500
1
501-1,000
2

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 40 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Nantes, France whose business descriptions match “infrastructure project management consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 508 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “infrastructure project management consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure project management consultancies are there based in Nantes, France?

RevenueBase identified 40 company matches for infrastructure project management consultancies associated with Nantes, France as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

EDEIS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in France has the most infrastructure project management consultancies?

Paris leads France with 428 company records, followed by Lyon (107) and Toulouse (48). Nantes has 40.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 508 professional contacts with verified work emails tracked across these 40 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.