Company lists · Data refreshed September 2026

Top 25 Geotechnical consulting firms based in Switzerland

RevenueBase identified 383 geotechnical consulting firms headquartered in Switzerland as of September 2026 and tracks 4,034 professional contacts across them, including 1,599 with verified work emails and 61 with mobile numbers. Zurich is the largest hub.

This list covers geotechnical consulting firms headquartered in Switzerland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
383Companies
4,034Contacts tracked
1,599Verified emails
61Mobile numbers
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The 25 largest geotechnical consulting firms based in Switzerland

Ranked by team size
Top 25 of 383 geotechnical consulting firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names geotechnical consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Geoquip MarinePartial evidence
St. Gallen, Switzerland201-500418

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

Source: company website · checked Sep 3, 2026
2
IUB Engineering LTDIndirect evidence
Visp, Switzerland201-500156

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

Source: company website · checked Sep 3, 2026
3
Jauslin Stebler AGIndirect evidence
Zurich, Switzerland51-200108

“Die komplexen Rahmenbedingungen erfordern eine ganzheitliche Sicht der Probleme, kreative Prozesse und eine entsprechend eingespielte Organisation.”

Source: company website · checked Sep 3, 2026
4
Stutz AG BauunternehmungIndirect evidence
St. Gallen, Switzerland501-1,00085

“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: company website · checked Sep 3, 2026
5Zurich, Switzerland51-20081

“1959 durch Dialma Jakob Bänziger gegründet - heute eine der führenden Bauingenieurfirmen in der Schweiz.”

Source: company website · checked Sep 3, 2026
6
Wälli AG IngenieureIndirect evidence
Romanshorn, Switzerland201-50079

“Wissen, Innovation, Nähe.”

Source: company website · checked Sep 3, 2026
7
SD IngénierieIndirect evidence
Sion, Switzerland51-20070

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

Source: company website · checked Sep 3, 2026
8
Groupe -TIndirect evidence
Lausanne, Switzerland51-20068

“T- est un groupe de bureaux d'ingénieurs en génie civil, spécialisé dans l'étude de projets et la direction de travaux.”

Source: company website · checked Sep 3, 2026
9
Locher IngenieureIndirect evidence
Zurich, Switzerland51-20067

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

Source: company website · checked Sep 3, 2026
10
AB Ingénieurs SAIndirect evidence
Fribourg, Switzerland51-20062

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

Source: company website · checked Sep 3, 2026
11
Karakas & Français SAIndirect evidence
Lausanne, Switzerland51-20059

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

Source: company website · checked Sep 3, 2026
12
Kost Partner AGIndirect evidence
Switzerland51-20057

“Studien, Beratungen, Konzepte, Planungen, Vermessungen, Projektierungen, Bauleitungen, Gesamtprojektleitungen, Expertisen, GIS- und lT-Dienstleistungen Wir sind ein führendes…”

Source: company website · checked Sep 3, 2026
13Lugano, Switzerland51-20055

“Project Partners Ltd Consulting Engineers is an engineering firm, with headquarter in Lugano-Switzerland, specialized in the construction and strategic consultancy of large works…”

Source: company website · checked Sep 3, 2026
14
Mawi Group SAIndirect evidence
Bellinzona, Switzerland51-20053

“con oltre 138 collaboratori è attiva in ingegneria civile, geologia, impiantistica, fisica della costruzione, gestione dei materiali e logistica in grandi progetti.”

Source: company website · checked Sep 3, 2026
15
Ingesa AGIndirect evidence
Seuzach, Switzerland51-20050

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

Source: company website · checked Sep 3, 2026
16Geneve, Switzerland51-20046

“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: company website · checked Sep 3, 2026
17
Jäckli Geologie AGIndirect evidence
Zurich, Switzerland51-20036

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

Source: company website · checked Sep 3, 2026
18
HTB Ingenieure AGIndirect evidence
Stafa, Switzerland51-20033

“Die Haupttätigkeitsfelder der HTB Ingenieure AG sind statische Berechnungen im Hochbau, konstruktiver Ingenieurbau, Bauwerkssanierung sowie die Projektierung und Bauleitung von…”

Source: company website · checked Sep 3, 2026
19
Henauer Gugler AGIndirect evidence
Berne, Switzerland51-20031

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

Source: company website · checked Sep 3, 2026
20Saint-Blaise, Switzerland51-20030

“Le Groupe GVH est un groupement de bureaux d'ingénieurs offrant les prestations de conception, de réalisation d'ouvrage, et de conseils en matière technique dans le domaine du…”

Source: company website · checked Sep 3, 2026
21
Flückiger Bosshard AGIndirect evidence
Zurich, Switzerland51-20027

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

Source: company website · checked Sep 3, 2026
22
Synaxis Ag, ZurichIndirect evidence
Zurich, Switzerland51-20025

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

Source: company website · checked Sep 3, 2026
23
Kopa-GruppeIndirect evidence
Muri, Switzerland51-20023

“Synergien erfolgreich nutzen, unser Vorsprung ist Ihr Erfolg.”

Source: company website · checked Sep 3, 2026
24
Theiler Ingenieure AGIndirect evidence
Thun Thun, Switzerland51-20023

“Ihr kompetenter Partner für Planung und Bauleitung im Hochbau, Tiefbau, Wasserbau und Brückenbau.”

Source: company website · checked Sep 3, 2026
25
C S Ingenieure AGIndirect evidence
Burgdorf, Switzerland51-20023

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

Source: company website · checked Sep 3, 2026

Showing 25 of 383 geotechnical consulting firms based in Switzerland

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Geotechnical consulting firms based in Switzerland at a glance

As of Sep 3, 2026
11-50Median size (employees)
ZurichLargest hub · 30 HQs
61Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
172
11-50
158
51-200
35
201-500
7
501-1,000
2
1,001-5,000
1

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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among geotechnical consulting firms, 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 an evidence 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, 1,599 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 3, 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 consulting firms by metro

  • Geotechnical consulting firms in Zurich30

Frequently asked

How many geotechnical consulting firms are there based in Switzerland?

RevenueBase identified 383 geotechnical consulting firms headquartered in Switzerland as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Geoquip Marine, headquartered in St. Gallen, tops this list with the largest team on record.

Which city has the most geotechnical consulting firms?

Zurich leads with 30 headquartered companies, followed by Lausanne (16) and St. Gallen (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,599 verified decision-maker contacts tracked across these 383 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 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.