Company lists · Data refreshed November 2026

Top 25 Geotechnical engineering companies based in Switzerland

Find 280 geotechnical engineering companies based in Switzerland, with 3,001 business contacts and 1,349 email addresses, published November 2026. Zurich 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 November 5, 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 Nov 5, 2026 86% judged on-target in blind review
280Companies
3,001Contacts tracked
1,349Verified emails
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The 25 largest geotechnical engineering companies based in Switzerland

Ranked by team size
Top 25 of 280 geotechnical engineering companies based in Switzerland, ranked by team size, largest first. Data refreshed Nov 5, 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidence9001 St. Gallen, SwitzerlandHQ checked Nov 5, 2026201-500450 contacts →

Strong evidence

“Geoquip Marine is a geotechnical data acquisition company safely delivering offshore geotechnical site investigations and engineering services to clients worldwide.”

Source: RevenueBase Database · checked Nov 5, 2026
2Partial evidenceBern 14, SwitzerlandHQ checked Nov 5, 2026201-500164 contacts →

Partial evidence

“IUB Engineering AG has been an overall planner for infrastructure systems for over 50 years.”

Source: RevenueBase Database · checked Nov 5, 2026
3Indirect evidenceHefenhofen, SwitzerlandHQ checked Nov 5, 2026501-1,00083 contacts →

Indirect evidence

“Wir bauen mit Menschen für Menschen Mit Professionalität und Kreativität auf dem Bau hat sich die STUTZ AG zum führenden Bauunternehmen in der Ostschweiz entwickelt.”

Source: RevenueBase Database · checked Nov 5, 2026
4Indirect evidenceSuisse-romande, SwitzerlandHQ checked Nov 5, 202651-20079 contacts →

Indirect evidence

“Fondée en 1955 à Lausanne, sd ingénierie se compose aujourd’hui d’environ 180 collaborateurs répartis au sein de sept filiales cantonales.”

Source: RevenueBase Database · checked Nov 5, 2026
5Indirect evidenceStadtkreis 1 Altstadt, SwitzerlandHQ checked Nov 5, 202651-20077 contacts →

Indirect evidence

“In der Bearbeitung von interdisziplinären Grossprojekten bis zu kleinen «Eine-Person-Projekten» bietet Locher Ingenieure das ideale Umfeld.”

Source: RevenueBase Database · checked Nov 5, 2026
6Indirect evidenceThônex, SwitzerlandHQ checked Nov 5, 202651-20063 contacts →

Indirect evidence

“Fondé en 1979, le bureau Pierre Amsler était spécialisé dans les études géotechniques et les travaux spéciaux dès sa création.”

Source: RevenueBase Database · checked Nov 5, 2026
7Indirect evidenceBellinzona, SwitzerlandHQ checked Nov 5, 202651-20055 contacts →

Indirect evidence

“con 140 collaboratori è attiva in diversi ambiti dell'ingegneria, tra cui ingegneria civile, restauro di monumenti storici, geologia, impiantistica, fisica della costruzione…”

Source: RevenueBase Database · checked Nov 5, 2026
8Indirect evidenceLausanne, SwitzerlandHQ checked Nov 5, 202651-20055 contacts →

Indirect evidence

“Depuis 1964, notre bureau est spécialisé dans la réalisation de travaux en relation avec le sol.”

Source: RevenueBase Database · checked Nov 5, 2026
9Indirect evidenceChavannes-près-renens, SwitzerlandHQ checked Nov 5, 202651-20046 contacts →

Indirect evidence

“De Cérenville Géotechnique regroupe sous une même entité un bureau d’ingénieurs-conseils (ICOS) et un service d’essais et mesures (SEM), tous deux spécialisés dans les domaines de…”

Source: RevenueBase Database · checked Nov 5, 2026
10Indirect evidenceSeuzach, SwitzerlandHQ checked Nov 5, 202651-20044 contacts →

Indirect evidence

“Seit vielen Jahren steht die INGESA AG für hochwertige Ingenieursdienstleistungen im Kanton Zürich.”

Source: RevenueBase Database · checked Nov 5, 2026
11Indirect evidence8048 Zürich, SwitzerlandHQ checked Nov 5, 202651-20040 contacts →

Indirect evidence

“Die Jäckli Geologie AG ist ein eigenständiges Schweizer Beratungsunternehmen mit verschiedenen Standorten in der Nord- und Zentralschweiz.”

Source: RevenueBase Database · checked Nov 5, 2026
12Indirect evidenceZürich, SwitzerlandHQ checked Nov 5, 202651-20035 contacts →

Indirect evidence

“1922 von Ernst Rathgeb gegründet, hat unser Unternehmen bereits in frühen Jahren an wichtigen Bauwerken wie z.B.”

Source: RevenueBase Database · checked Nov 5, 2026
13Indirect evidenceYverdon-les-bains, SwitzerlandHQ checked Nov 5, 202611-5033 contacts →

Indirect evidence

“Geo2X is a Swiss Company based near Geneva.”

Source: RevenueBase Database · checked Nov 5, 2026
14Indirect evidenceZürich, SwitzerlandHQ checked Nov 5, 202611-5029 contacts →

Indirect evidence

“Wir beraten seit 1974 Bauherren und Planer in allen Fragen rund um den Baugrund.”

Source: RevenueBase Database · checked Nov 5, 2026
15Partial evidenceGeneve Carouge, SwitzerlandHQ checked Nov 5, 202611-5029 contacts →

Partial evidence

“Cement Engineering SA (CESA) Engineering is a professionals business!”

Source: RevenueBase Database · checked Nov 5, 2026
16Indirect evidenceZürich, SwitzerlandHQ checked Nov 5, 202651-20028 contacts →

Indirect evidence

“Die Tradition der Flückiger + Bosshard AG, als Teil einer innovativen, leistungsstarken und unabhängigen Ingenieurgruppe im Ingenieurbau reicht zurück bis ins Jahr 1964.”

Source: RevenueBase Database · checked Nov 5, 2026
17Indirect evidenceBiasca, SwitzerlandHQ checked Nov 5, 202611-5024 contacts →

Indirect evidence

“Filippini & Partner Ingegneria SA è una società indipendente di ingegneria, fondata nel 1972 a Biasca (Ct.”

Source: RevenueBase Database · checked Nov 5, 2026
18Indirect evidenceRomanshorn, SwitzerlandHQ checked Nov 5, 202651-20024 contacts →

Indirect evidence

“Seit mehr als 45 Jahren haben sich unsere Mitarbeitenden an den Standorten Romanshorn, Zürich und St.”

Source: RevenueBase Database · checked Nov 5, 2026
19Indirect evidenceThalwil, SwitzerlandHQ checked Nov 5, 202611-5024 contacts →

Indirect evidence

“Osterwalder, Lehmann - Ingenieure und Geometer AG wurde im Jahr durch Stefan Osterwalder und Heinz Lehmann gegründet.”

Source: RevenueBase Database · checked Nov 5, 2026
20Indirect evidenceHasle B.b., SwitzerlandHQ checked Nov 5, 202651-20024 contacts →

Indirect evidence

“Wir sind ein Team von Ingenieuren, Bautechnikern und qualifizierten Bauzeichnern und Ihr Ansprechpartner für alle Aufgaben im Ingenieurbau.”

Source: RevenueBase Database · checked Nov 5, 2026
21Indirect evidence8050 Zürich, SwitzerlandHQ checked Nov 5, 202651-20024 contacts →

Indirect evidence

“Die Synaxis AG plant und realisiert anspruchsvolle Projekte im Hochbau, Brückenbau und Infrastrukturbau, in der Bauwerkserhaltung sowie in Grundbau und Geotechnik.”

Source: RevenueBase Database · checked Nov 5, 2026
22Indirect evidenceServion, SwitzerlandHQ checked Nov 5, 202611-5022 contacts →

Indirect evidence

“Fondée en 1991 et accréditée en 1994 (STS 090), Infralab SA est un bureau d’ingénieurs civils et un laboratoire d’analyse des matériaux de construction, avec son siège dans le…”

Source: RevenueBase Database · checked Nov 5, 2026
23Indirect evidenceWinterthur, SwitzerlandHQ checked Nov 5, 202611-5022 contacts →

Indirect evidence

“Die Dr.”

Source: RevenueBase Database · checked Nov 5, 2026
24Indirect evidenceDomat/ems, SwitzerlandHQ checked Nov 5, 202611-5022 contacts →

Indirect evidence

“Aus Tradition engagiert, innovativ und immer auf der Suche nach der besten Lösung!”

Source: RevenueBase Database · checked Nov 5, 2026
25Indirect evidenceCarouge, SwitzerlandHQ checked Nov 5, 202611-5021 contacts →

Indirect evidence

“Le Collectif SA propose des services dans le domaine du génie civil et de l'ingénierie des structures.”

Source: RevenueBase Database · checked Nov 5, 2026

Showing 25 of 280 geotechnical engineering companies based in Switzerland

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Geotechnical engineering companies based in Switzerland at a glance

As of Nov 5, 2026
45.0%Verified-email coverage
10.7Average contacts per company
11-50Median size (employees)
7.5%Largest-city concentration · Zurich
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
122
11-50
118
51-200
23
201-500
6
501-1,000
3

Email recency for this list is measured worldwide rather than for Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 280 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 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 Switzerland 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 Switzerland 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, 1,349 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 November 5, 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.

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 Switzerland?

The directory lists 280 geotechnical engineering companies based in Switzerland.

Where are most geotechnical engineering companies located?

Zurich 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.