Company lists · Data refreshed September 2026

Top 25 Geotechnical engineering companies based in France

Name: Geotechnical engineering companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 719 companies tracked

Find 719 geotechnical engineering companies based in France, with 12,415 business contacts and 3,592 email addresses, published September 2026. Paris is the single most-represented city among the companies on this list. Use the directory to identify firms for site investigation, subsurface analysis, foundation design, and related project needs.

Geotechnical engineering companies investigate soil, rock, groundwater, and subsurface conditions to inform foundation design, earthwork, construction, and infrastructure projects. This list covers companies that provide geotechnical investigation, testing, analysis, design, consulting, or related subsurface engineering services. Ranked by team size, largest first. Data current as of September 6, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

719Companies

12,415Contacts tracked

3,592Verified emails

184Mobile numbers

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The 25 largest geotechnical engineering companies based in France

Ranked by team size

Top 25 of 719 geotechnical engineering companies based in France, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical engineering companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bouygues Travaux Publics	Indirect evidence	Saint-quentin-en-yvelines Cedex, FranceHQ checked Sep 6, 2026	10001+	1,850 contacts →
	“CONSTRUIRE DES INFRASTRUCTURES DURABLES Bouygues TP est l’un des leaders mondiaux dans les domaines de l’aménagement du territoire et de la construction d’infrastructures durables.” Source: company website · checked Sep 6, 2026
2	Soletanche Bachy	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 6, 2026	5,001-10,000	1,222 contacts →
	“Soletanche Bachy is a world benchmark in foundations and soil technologies, and is involved in over projects every year.” Source: company website · checked Sep 6, 2026
3	Groupe Géotec	Indirect evidence	Quetigny, FranceHQ checked Sep 6, 2026	501-1,000	441 contacts →
	“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…” Source: company website · checked Sep 6, 2026
4	ECR Environnement	Indirect evidence	Larmor Plage, FranceHQ checked Sep 6, 2026	201-500	371 contacts →
	“ECR Environnement est un bureau d’études et de conseils en ingénierie des sols, pluridisciplinaire et indépendant qui accompagne depuis les particuliers et professionnels dans…” Source: company website · checked Sep 6, 2026
5	Infraneo	Indirect evidence	Pantin, FranceHQ checked Sep 6, 2026	1,001-5,000	355 contacts →
	“INFRANEO est un groupe d’ingénierie de spécialité et de terrain, présent en France, en Allemagne, aux Pays-Bas, en Belgique et en Espagne.” Source: company website · checked Sep 6, 2026
6	Geotechnique SAS	Indirect evidence	Avignon, FranceHQ checked Sep 6, 2026	51-200	134 contacts →
	“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…” Source: company website · checked Sep 6, 2026
7	Soletanche Freyssinet	Partial evidence	Rueil Malmaison, FranceHQ checked Sep 6, 2026	10001+	131 contacts →
	“As the world leader in soil, structural and nuclear engineering, operating in some 120 countries, the Soletanche Freyssinet group brings together an unparalleled array of…” Source: company website · checked Sep 6, 2026
8	Temsol	Indirect evidence	Merignac Cedex, FranceHQ checked Sep 6, 2026	51-200	125 contacts →
	“Temsol est reconnue depuis 50 ans comme le spécialiste dans les domaines de la géotechnique, des structures et de l’environnement.” Source: company website · checked Sep 6, 2026
9	Semofi	Indirect evidence	Villeneuve-le-roi, FranceHQ checked Sep 6, 2026	51-200	114 contacts →
	“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…” Source: company website · checked Sep 6, 2026
10	Fayat Fondations Fayat Group	Indirect evidence	Grigny, FranceHQ checked Sep 6, 2026	501-1,000	106 contacts →
	“Experts en fondations spéciales, les 600 collaborateurs Fayat Fondations mettent en œuvre au quotidien leur expertise reconnue sur une gamme complète de solutions techniques pour…” Source: company website · checked Sep 6, 2026
11	SGC Travaux Spéciaux	Indirect evidence	Sainte-foy-l'argentière, FranceHQ checked Sep 6, 2026	51-200	104 contacts →
	“SGC Travaux Spéciaux, Société Générale de Confortements, propose des solutions pluri-techniques pour les soutènements et les fondations auprès des professionnels et des…” Source: company website · checked Sep 6, 2026
12	PCM Ingenierie	Indirect evidence	Saint-mandé, FranceHQ checked Sep 6, 2026	51-200	96 contacts →
	“PCM ingénierie est un groupe de BET pluridisciplinaires regroupés au sein de 7 sociétés : PCM GEODATA : Constitué de SECTEUR créé en 1992, intégré à PCM en 2013 et GEOVIVIER créé…” Source: company website · checked Sep 6, 2026
13	Ingeo Ingénierie & Géomètre-Expert	Indirect evidence	Blendecques, FranceHQ checked Sep 6, 2026	51-200	94 contacts →
	“INGEO - Ingénierie - Géomètre-Expert : un cabinet de Géomètres-Experts et son Bureau d’Etudes et d’Ingénierie réunis au service de vos projets 90 collaborateurs à Saint Omer…” Source: company website · checked Sep 6, 2026
14	BTP Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	11-50	92 contacts →
	“Société à taille humaine, BTP Ingénierie est un bureau d’étude spécialisé dans le domaine du calcul de structures et du diagnostic des structures existantes.” Source: company website · checked Sep 6, 2026
15	Synapse Construction	Indirect evidence	Écully, FranceHQ checked Sep 6, 2026	51-200	70 contacts →
	“SYNAPSE Construction, société d'ingénierie bureau d'études techniques (BET) dans les métiers du bâtiment, répond aux besoins des donneurs d'ordres publics et privés.” Source: company website · checked Sep 6, 2026
16	Axiolis	Indirect evidence	La Penne-sur-huveaune, FranceHQ checked Sep 6, 2026	51-200	67 contacts →
	“Depuis plus de 10 ans nous intervenons sur l’ensemble des métiers de l’ingénierie des structures neuves et existantes en maîtrise d’œuvre, exécution, instrumentation et diagnostic…” Source: company website · checked Sep 6, 2026
17	SOL Solution SAS	Strong evidence	Riom, FranceHQ checked Sep 6, 2026	51-200	65 contacts →
	“Sol Solution is a geotechnical, geological, and geophysical engineering firm, established in 1992.” Source: company website · checked Sep 6, 2026
18	Accessol	Indirect evidence	Savigny-le-temple, FranceHQ checked Sep 6, 2026	11-50	61 contacts →
	“Mur fissuré?” Source: company website · checked Sep 6, 2026
19	Novatlas	Indirect evidence	Ivry-sur-seine, FranceHQ checked Sep 6, 2026	51-200	60 contacts →
	“Depuis plus de 30 ans, Novatlas accompagne les acteurs du marché de la construction pour relever les défis d’aujourd’hui : bâtir, réinventer l’espace urbain et préserver notre…” Source: company website · checked Sep 6, 2026
20	Geolia	Indirect evidence	Morangis, FranceHQ checked Sep 6, 2026	51-200	58 contacts →
	“Bureau d'Etudes Géotechniques, Hydrogéologie et Sites et Sols Pollués, Ingénierie des sols et fondations.” Source: company website · checked Sep 6, 2026
21	KAÉNA	Indirect evidence	Saint Vincent De Mercuze, FranceHQ checked Sep 6, 2026	51-200	53 contacts →
	“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…” Source: company website · checked Sep 6, 2026
22	OPSIA	Indirect evidence	Toulon Cedex 9, FranceHQ checked Sep 6, 2026	51-200	52 contacts →
	“Opsia, c’est la conjugaison des savoir-faire d’un bureau d’ingénierie mis au service d’une expertise réglementée : le métier de Géomètre Expert.” Source: company website · checked Sep 6, 2026
23	EPDC	Indirect evidence	Ivry-sur-seine, FranceHQ checked Sep 6, 2026	11-50	51 contacts →
	“Bienvenue chez EPDC, expertise pluridisciplinaire et indépendante en ingénierie et études techniques, où le savoir-faire et l'innovation élaborent des solutions uniques.” Source: company website · checked Sep 6, 2026
24	Sage Ingenierie	Indirect evidence	Gières, FranceHQ checked Sep 6, 2026	51-200	51 contacts →
	“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…” Source: company website · checked Sep 6, 2026
25	Btps Atlantique	Indirect evidence	Mérignac, FranceHQ checked Sep 6, 2026	51-200	50 contacts →
	“Depuis plus de 40 ans, BTPS Atlantique, entreprise de génie civil, construit, entretient, répare et renforce les structures de génie civil de toutes natures.” Source: company website · checked Sep 6, 2026

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: geotechnical engineering companies. 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 geotechnical engineering companies.
Partial evidence: Its own public description names part of geotechnical engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geotechnical engineering companies. 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 719 geotechnical engineering companies based in France

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Geotechnical engineering companies based in France at a glance

As of Sep 6, 2026

28.9%Verified-email coverage

1.5%Mobile-number coverage

17.3Average contacts per company

1-10Median size (employees)

5.1%Largest-city concentration · Paris

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

434

11-50

206

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

3,3740–30

20331–60

061–90

190–180

14180+

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 geotechnical engineering companies, 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 France whose own description of what they do matches “geotechnical engineering companies”. 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 geotechnical engineering companies), 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 geotechnical engineering companies, and records with no verified work email. Companies headquartered outside France 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, 3,592 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 6, 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.

Geotechnical engineering companies by metro

Geotechnical engineering companies in Paris37

Frequently asked

What do geotechnical engineering companies do?

Geotechnical engineering companies assess soil, rock, groundwater, and subsurface conditions to support foundation design, earthwork, construction, and infrastructure projects.

How many geotechnical engineering companies are based in France?

The directory lists 719 geotechnical engineering companies based in France.

Where are most geotechnical engineering companies located?

Paris is the single most-represented city among the companies on this list.

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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.