Company lists · Data refreshed November 2026

Top 25 Subsurface technical consulting firms based in France

RevenueBase identified 348 company matches for subsurface technical consulting firms associated with France as of November 2026 and tracks 7,644 professional contacts across them, including 2,755 with verified work emails. Paris is the largest hub.

This list covers company matches for subsurface technical consulting firms associated with 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 November 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
348Companies
7,644Contacts tracked
2,755Verified emails
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The 25 largest subsurface technical consulting firms based in France

Ranked by team size
Top 25 of 348 company matches for subsurface technical consulting firms based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchNeuilly-sur-seine, FranceHQ recorded Nov 5, 20265,001-10,0001,705 contacts →

Exact match

“Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBoulogne Billancourt, FranceHQ recorded Nov 5, 2026501-1,000614 contacts →

Exact match

“We are an engineering consulting firm specializing in innovative solutions for large-scale projects across the infrastructure, transportation, energy, and industrial sectors.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchQuetigny, FranceHQ recorded Nov 5, 2026501-1,000499 contacts →

Exact match

“Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchLevallois-perret, FranceHQ recorded Nov 5, 2026501-1,000408 contacts →

Exact match

“NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchRueil-malmaison, FranceHQ recorded Nov 5, 202651-200230 contacts →

Exact match

“Beicip-Franlab is a leading Energy Consultancy and Software Editor created in the 1960's with recognized worldwide hands-on expertise.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchParis, FranceHQ recorded Nov 5, 2026201-500203 contacts →

Exact match

“Bureau d’études techniques fondé en 1974, setec hydratec s’est positionné en tant qu’expert sur tous les sujets liés à l’ingénierie de l’eau et des sites et sols pollués, afin de…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchFontaines, FranceHQ recorded Nov 5, 2026201-500161 contacts →

Exact match

“Notre entreprise, créée en 1983, est un bureau d'étude de près de 300 personnes spécialisé en géotechnique dans les domaines de l'eau, du sol et de l'environnement.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchAvignon, FranceHQ recorded Nov 5, 202651-200128 contacts →

Exact match

“GEOTECHNIQUE SAS - Sciences de la Terre est un bureau d'études en ingénierie géotechnique qui apporte son savoir-faire à l'ensemble des protagonistes intervenant dans un projet de…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchVilleneuve-le-roi, FranceHQ recorded Nov 5, 202651-200117 contacts →

Exact match

“Filiale du Groupe SEMOFI, acteur majeur des filières géotechnique et SSP, SEMOFI est un bureau d’études dont la vocation est d’accompagner les collectivités territoriales…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchNîmes, FranceHQ recorded Nov 5, 202651-20084 contacts →

Exact match

“Created in 1983, STAT MARINE is an entrepreneurial and client-focused organisation; it has won its reputation not only for its practical approach to operational and engineering…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchVilleneuve-d’ascq, FranceHQ recorded Nov 5, 202651-20077 contacts →

Exact match

“Postuler à nos offres d'emploi : Envoyer votre CV : Le Groupe Inatis, Ingénierie et Conseil en technologies, est spécialisé dans l’assistance technique aux grands donneurs…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchMorangis, FranceHQ recorded Nov 5, 202651-20064 contacts →

Exact match

“Bureau d'Etudes Géotechniques, Hydrogéologie et Sites et Sols Pollués, Ingénierie des sols et fondations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchGières, FranceHQ recorded Nov 5, 202651-20062 contacts →

Exact match

“La Société Alpine Géotechnique (SAGE Ingénierie) est un bureau d'études de sols indépendant (SAS) dont les services couvrent toute l’ingénierie géotechnique spécifique aux…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchPau, FranceHQ recorded Nov 5, 202651-20059 contacts →

Exact match

“PLCB Engineering est une société d'Ingénierie et de conseil spécialisée dans les industries Oil & Gas, Chimie & Pétrochimie, Projet Minier, Nucléaire et Énergies renouvelables…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchKervignac, FranceHQ recorded Nov 5, 202611-5054 contacts →

Exact match

“Hydroconsult is a recognized actor in worldwide Hydrographic and Geophysical Survey's assistance and Marine Consulting, with 20 years experience.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSaint Vincent De Mercuze, FranceHQ recorded Nov 5, 202651-20052 contacts →

Exact match

“Bureau d'études géotechniques situé au coeur des Alpes (1 agence au Touvet et 1 agence à Annecy,1 agence à St Priest) ayant ses propres ateliers de sondages (5 foreuses dont 1…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchRueil-malmaison, FranceHQ recorded Nov 5, 202651-20050 contacts →

Exact match

“TECH’advantage is a digital service company since 1992 and a subsidiary of IFPEN (Institut Français du Pétrole et des Energies Nouvelles) for whom we work from the beginning.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchRueil-malmaison, FranceHQ recorded Nov 5, 202611-5049 contacts →

Exact match

“GEOS Ingénieurs Conseils est un bureau de Conseils et d’Expertise spécialisé en géotechnique, regroupant 35 collaborateurs à Paris et Lyon, filiale du groupe national d’ingénierie…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchLudres, FranceHQ recorded Nov 5, 202611-5046 contacts →

Exact match

“GexplOre | Specialists in Geology, Geophysics, Well Logging & Mining Consultation GexplOre is a leader in geological exploration, providing consulting services and integrated…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchPort-jérôme-sur-seine, FranceHQ recorded Nov 5, 202611-5046 contacts →

Exact match

“L’EXPÉRIENCE EST INDISPENSABLE POUR TRAVAILLER DANS LE DOMAINE DES ETUDES TECHNIQUES D’INSTALLATIONS INDUSTRIELLES.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchBallainvilliers, FranceHQ recorded Nov 5, 202651-20041 contacts →

Exact match

“TECHNOSOL est le bureau d'ingénierie géotechnique du Groupe GENGIS, Groupe indépendant d'ingénieries spécialisées en géosciences et structure.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchMassy, FranceHQ recorded Nov 5, 202651-20041 contacts →

Exact match

“CREATYM France est une Société spécialisée dans les services d’ingénierie, de conseil et d’études techniques pour les acteurs du domaine industriel.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchRéaumont, FranceHQ recorded Nov 5, 202651-20040 contacts →

Exact match

“ARMASOL et ses bureaux d'études géotechniques implantés sur l'ensemble du territoire national vous accompagnent pour aménager et construire en toute sérénité.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchSemur En Auxois, FranceHQ recorded Nov 5, 202651-20039 contacts →

Exact match

“ICSEO est un bureau d'études de sols, indépendant et de taille humaine répartis en plusieurs agences.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchAix-en-provence, FranceHQ recorded Nov 5, 202651-20038 contacts →

Exact match

“Depuis plus de 60 ans, SOL ESSAIS dispose d'une expertise en géotchnique pour apporter des solutions techniques grâce à ses ingénieurs spécialisés qui prennent appui sur les…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 348 subsurface technical consulting firms based in France

See the full list, filter by size, metro and specialty, and access 2,755 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Subsurface technical consulting firms based in France at a glance

As of Nov 5, 2026
36.0%Verified-email coverage
22.0Average contacts per company
1-10Median size (employees)
8.0%Largest-city concentration · Paris
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
216
11-50
91
51-200
26
201-500
4
501-1,000
3
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 348 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 France whose business descriptions match “subsurface technical consulting firms” 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 2,755 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 November 5, 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 “subsurface technical consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsurface technical consulting firms are there based in France?

RevenueBase identified 348 company matches for subsurface technical consulting firms associated with France as of November 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?

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

Which city has the most subsurface technical consulting firms?

Paris leads with 28 company records, followed by Lyon (6) and Nantes (5).

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 2,755 professional contacts with verified work emails tracked across these 348 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 November 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.