Company lists · Data refreshed September 2026

Top 25 Subsurface technical consulting firms based in France

RevenueBase identified 371 company matches for subsurface technical consulting firms associated with France as of September 2026 and tracks 4,453 professional contacts across them, including 1,281 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 September 29, 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 Sep 29, 2026 How this list was built
371Companies
4,453Contacts tracked
1,281Verified emails
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The 25 largest subsurface technical consulting firms based in France

Ranked by team size
Top 25 of 371 company matches for subsurface technical consulting firms based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 matchQuetigny, FranceHQ recorded Sep 29, 2026501-1,000441 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 · Sep 29, 2026 · View company records in RevenueBase
2Exact matchParis, FranceHQ recorded Sep 29, 2026201-500182 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 · Sep 29, 2026 · View company records in RevenueBase
3Exact matchAvignon, FranceHQ recorded Sep 29, 202651-200134 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 · Sep 29, 2026 · View company records in RevenueBase
4Exact matchMerignac Cedex, FranceHQ recorded Sep 29, 202651-200125 contacts →

Exact match

“Temsol est reconnue depuis 50 ans comme le spécialiste dans les domaines de la géotechnique, des structures et de l’environnement.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchVilleneuve-le-roi, FranceHQ recorded Sep 29, 202651-200114 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 · Sep 29, 2026 · View company records in RevenueBase
6Exact matchRiom, FranceHQ recorded Sep 29, 202651-20065 contacts →

Exact match

“Sol Solution is a geotechnical, geological, and geophysical engineering firm, established in 1992.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchMorangis, FranceHQ recorded Sep 29, 202651-20058 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchSaint Vincent De Mercuze, FranceHQ recorded Sep 29, 202651-20053 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 · Sep 29, 2026 · View company records in RevenueBase
9Exact matchGières, FranceHQ recorded Sep 29, 202651-20051 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 · Sep 29, 2026 · View company records in RevenueBase
10Exact matchKervignac, FranceHQ recorded Sep 29, 202611-5049 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 · Sep 29, 2026 · View company records in RevenueBase
11Exact matchChallans, FranceHQ recorded Sep 29, 202611-5042 contacts →

Exact match

“GPH est une entité du groupe NOVAM, au sein du pôle Habitat et géotechnique de l'habitat.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchLongueville, FranceHQ recorded Sep 29, 202651-20042 contacts →

Exact match

“FONDOUEST is a construction company based out of ZONE ARTISANALE 727 RUE DU PONT CE, LONGUEVILLE, France.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchRueil-malmaison, FranceHQ recorded Sep 29, 202611-5042 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 · Sep 29, 2026 · View company records in RevenueBase
14Exact matchBallainvilliers, FranceHQ recorded Sep 29, 202651-20042 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 · Sep 29, 2026 · View company records in RevenueBase
15Exact matchLudres, FranceHQ recorded Sep 29, 202611-5041 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 · Sep 29, 2026 · View company records in RevenueBase
16Exact matchRéaumont, FranceHQ recorded Sep 29, 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 · Sep 29, 2026 · View company records in RevenueBase
17Exact matchParis, FranceHQ recorded Sep 29, 202611-5037 contacts →

Exact match

“AVESIG est un Bureau d’études d’assistance technique et de conseils en Ingénierie Nous rendons simple et abordable ce qui paraît complexe et compliqué.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchAix-en-provence, FranceHQ recorded Sep 29, 202651-20036 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 · Sep 29, 2026 · View company records in RevenueBase
19Exact matchArcomps, FranceHQ recorded Sep 29, 202651-20036 contacts →

Exact match

“SONDAGE GÉOTECHNIQUES : La géotechnique est l'étude de l'adaptation des ouvrages humains aux sols et roches formant le terrain naturel.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchSemur En Auxois, FranceHQ recorded Sep 29, 202651-20035 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 · Sep 29, 2026 · View company records in RevenueBase
21Exact matchMassy, FranceHQ recorded Sep 29, 202651-20034 contacts →

Exact match

“Avec plus de 40 ans de savoir-faire dans le domaine de la Géotechnique, SOL CONSEIL accompagne ses clients sur tous types de projets en bâtiment, génie civil, aménagements…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchGrigny, FranceHQ recorded Sep 29, 202611-5029 contacts →

Exact match

“À vos côtés, du sol jusqu’à l’horizon, pour tous vos projets géotechniques.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchAntony, FranceHQ recorded Sep 29, 202611-5028 contacts →

Exact match

“STRUCTUREO est un bureau d'études structure et géotechnique qui intervient sur les bâtiments existants, réalisant diagnostics, études, conseils, instrumentation des ouvrages…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchAix En Pce, FranceHQ recorded Sep 29, 202611-5026 contacts →

Exact match

“Les associés et salariés d'AD2i forment un bureau d'études techniques spécialisé dans l'ingénierie du bâtiment et dans l'aménagement des domaines skiables Nous intervenons…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchMeythet - Annecy, FranceHQ recorded Sep 29, 202651-20023 contacts →

Exact match

“Créé en 1995, il regroupe des compétences géotechniques établies depuis 1986.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 371 subsurface technical consulting firms based in France

See the full list, filter by size, metro and specialty, and access 1,281 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 Sep 29, 2026
28.8%Verified-email coverage
12.0Average contacts per company
1-10Median size (employees)
6.5%Largest-city concentration · Paris
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
243
11-50
98
51-200
21
201-500
3
501-1,000
2
1,001-5,000
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 371 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 1,281 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 September 29, 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 371 company matches for subsurface technical consulting firms associated with France as of September 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?

Groupe Géotec 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 24 company records, followed by Nantes (6) and Montpellier (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 1,281 professional contacts with verified work emails tracked across these 371 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 September 29, 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.