Company lists · Data refreshed September 2026

Top 25 Geotechnical construction firms based in Switzerland

Name: Geotechnical construction firms based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 317 companies tracked

RevenueBase identified 317 geotechnical construction firms headquartered in Switzerland as of September 2026 and tracks 2,961 professional contacts across them, including 1,286 with verified work emails. Zurich is the largest hub.

This list covers geotechnical construction 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 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 16, 2026 86% judged on-target in blind review

317Companies

2,961Contacts tracked

1,286Verified emails

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The 25 largest geotechnical construction firms based in Switzerland

Ranked by team size

Top 25 of 317 geotechnical construction firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical construction firms: 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	Geoquip Marine	Partial evidence	9001 St. Gallen, SwitzerlandHQ checked Sep 16, 2026	201-500	422 contacts →
	Partial 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 Sep 16, 2026
2	Birchmeier Gruppe	Indirect evidence	Döttingen, SwitzerlandHQ checked Sep 16, 2026	501-1,000	155 contacts →
	Indirect evidence “Die Birchmeier Gruppe vereint alle Dienstleistung des Bauens unter einem Dach.” Source: RevenueBase Database · checked Sep 16, 2026
3	Stutz AG Bauunternehmung	Indirect evidence	Hefenhofen, SwitzerlandHQ checked Sep 16, 2026	501-1,000	86 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 Sep 16, 2026
4	Locher Ingenieure	Indirect evidence	Stadtkreis 1 Altstadt, SwitzerlandHQ checked Sep 16, 2026	51-200	67 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 Sep 16, 2026
5	Marti ARC Jura	Indirect evidence	Cornaux, SwitzerlandHQ checked Sep 16, 2026	201-500	66 contacts →
	Indirect evidence “Marti arc jura, forte de son expérience, vous apporte les compétences d'une entreprise internationale avec des partenaires régionaux connaissant parfaitement les spécificités de…” Source: RevenueBase Database · checked Sep 16, 2026
6	Greuter AG	Indirect evidence	Hochfelden, SwitzerlandHQ checked Sep 16, 2026	201-500	61 contacts →
	Indirect evidence “Wir stehen für Kompetenz in zwei zentralen Bereichen: Spezialtiefbau und Strassenausstattungen.” Source: RevenueBase Database · checked Sep 16, 2026
7	Karakas & Français SA	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 16, 2026	51-200	59 contacts →
	Indirect evidence “Depuis 1964, notre bureau est spécialisé dans la réalisation de travaux en relation avec le sol.” Source: RevenueBase Database · checked Sep 16, 2026
8	AB Ingénieurs SA	Indirect evidence	Thônex, SwitzerlandHQ checked Sep 16, 2026	51-200	59 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 Sep 16, 2026
9	Mawi Group SA	Indirect evidence	Bellinzona, SwitzerlandHQ checked Sep 16, 2026	51-200	53 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 Sep 16, 2026
10	DE Cérenville Géotechnique SA	Indirect evidence	Chavannes-près-renens, SwitzerlandHQ checked Sep 16, 2026	51-200	45 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 Sep 16, 2026
11	Solexperts AG	Indirect evidence	Mönchaltorf, SwitzerlandHQ checked Sep 16, 2026	51-200	39 contacts →
	Indirect evidence “Solexperts AG (soil experts) was founded in 1947 by Giovanni Rodio.” Source: RevenueBase Database · checked Sep 16, 2026
12	Meier Jäggi AG Zofingen	Indirect evidence	Zofingen, SwitzerlandHQ checked Sep 16, 2026	201-500	34 contacts →
	Indirect evidence “MEIER+JÄGGI AG - Infrastrukturbau - Spezialtiefbau - Gleisbau / Gleistiefbau” Source: RevenueBase Database · checked Sep 16, 2026
13	Bereuter Gruppe	Indirect evidence	Volketswil, SwitzerlandHQ checked Sep 16, 2026	201-500	32 contacts →
	Indirect evidence “Während unseres langjährigen Bestehens haben wir uns zu einem der führenden Anbieter von Bauleistungen entwickelt.” Source: RevenueBase Database · checked Sep 16, 2026
14	Henauer Gugler AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 16, 2026	51-200	31 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 Sep 16, 2026
15	Isen Tiefbau AG	Indirect evidence	Otelfingen, SwitzerlandHQ checked Sep 16, 2026	201-500	30 contacts →
	Indirect evidence “DIE ISEN TIEFBAU AG WURDE 1991 ALS TIEFBAUUNTERNEHMEN MIT 4 ANGESTELLTEN GEGRÜNDET.” Source: RevenueBase Database · checked Sep 16, 2026
16	BISA	Indirect evidence	Sierre, SwitzerlandHQ checked Sep 16, 2026	11-50	28 contacts →
	Indirect evidence “Notre bureau est une société d'ingénieurs spécialisés dans les principaux domaines de l'ingénierie civile, ce qui lui permet de résoudre les problèmes complexes liés à l'étude et…” Source: RevenueBase Database · checked Sep 16, 2026
17	Friedlipartner AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 16, 2026	11-50	28 contacts →
	Indirect evidence “Wir beraten seit 1974 Bauherren und Planer in allen Fragen rund um den Baugrund.” Source: RevenueBase Database · checked Sep 16, 2026
18	Osterwalder, Lehmann Ingenieure UND Geometer AG	Indirect evidence	Thalwil, SwitzerlandHQ checked Sep 16, 2026	11-50	25 contacts →
	Indirect evidence “Osterwalder, Lehmann - Ingenieure und Geometer AG wurde im Jahr durch Stefan Osterwalder und Heinz Lehmann gegründet.” Source: RevenueBase Database · checked Sep 16, 2026
19	Synaxis Ag, Zurich	Indirect evidence	8050 Zürich, SwitzerlandHQ checked Sep 16, 2026	51-200	24 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 Sep 16, 2026
20	Tozzo AG	Indirect evidence	Bubendorf, SwitzerlandHQ checked Sep 16, 2026	201-500	24 contacts →
	Indirect evidence “Die Tozzo AG ist ein führender Baudienstleister im Tief- und Strassenbau mit rund 270 Mitarbeitenden und vier Standorten in den Kantonen Basel-Landschaft, Basel-Stadt, Aargau und…” Source: RevenueBase Database · checked Sep 16, 2026
21	Cement Engineering SA Cesa	Indirect evidence	Geneve Carouge, SwitzerlandHQ checked Sep 16, 2026	11-50	24 contacts →
	Indirect evidence “Cement Engineering SA (CESA) Engineering is a professionals business!” Source: RevenueBase Database · checked Sep 16, 2026
22	C S Ingenieure AG	Indirect evidence	Hasle B.b., SwitzerlandHQ checked Sep 16, 2026	51-200	22 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 Sep 16, 2026
23	Infralab SA	Partial evidence	Servion, SwitzerlandHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial 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 Sep 16, 2026
24	Ghelma AG Spezialtiefbau	Indirect evidence	Meiringen, SwitzerlandHQ checked Sep 16, 2026	51-200	22 contacts →
	Indirect evidence “Wir sind die Ghelma AG Spezialtiefbau (kurz GSTB) – familiär, wild und stark.” Source: RevenueBase Database · checked Sep 16, 2026
25	Hastag St. Gallen BAU AG	Indirect evidence	St. Gallen, SwitzerlandHQ checked Sep 16, 2026	51-200	21 contacts →
	Indirect evidence “Die HASTAG St.” Source: RevenueBase Database · checked Sep 16, 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 construction firms. 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 construction firms.
Partial evidence: Its own public description names part of geotechnical construction firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geotechnical construction firms. 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 317 geotechnical construction firms based in Switzerland

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Geotechnical construction firms based in Switzerland at a glance

As of Sep 16, 2026

43.4%Verified-email coverage

9.3Average contacts per company

11-50Median size (employees)

8.2%Largest-city concentration · Zurich

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

144

11-50

111

51-200

201-500

501-1,000

1,001-5,000

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 317 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 construction firms, 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 construction firms”. 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 construction firms), 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 construction 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 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, 1,286 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 16, 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 construction firms by metro

Geotechnical construction firms in Zurich26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its 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 the category the list is about. Each row is rated strong evidence when the company's own description names geotechnical construction firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many geotechnical construction firms are there based in Switzerland?

RevenueBase identified 317 geotechnical construction 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 construction firms?

Zurich leads with 26 headquartered companies, followed by Chur (5) and Lausanne (5).

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 1,286 verified decision-maker contacts tracked across these 317 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 16, 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 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.