Company lists · Data refreshed September 2026

Top 25 Liquefaction assessment firms based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 49 companies tracked

RevenueBase identified 49 liquefaction assessment firms headquartered in Switzerland as of September 2026 and tracks 424 professional contacts across them, including 213 with verified work emails. Zurich is the largest hub.

This list covers liquefaction assessment 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 20, 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 20, 2026 86% judged on-target in blind review

49Companies

424Contacts tracked

213Verified emails

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The 25 largest liquefaction assessment firms based in Switzerland

Ranked by team size

Top 25 of 49 liquefaction assessment firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to liquefaction assessment 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	Karakas & Français SA	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 20, 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 20, 2026
2	DE Cérenville Géotechnique SA	Indirect evidence	Chavannes-près-renens, SwitzerlandHQ checked Sep 20, 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 20, 2026
3	Solexperts AG	Indirect evidence	Mönchaltorf, SwitzerlandHQ checked Sep 20, 2026	51-200	39 contacts →
	Indirect evidence “Solexperts AG (soil experts) was founded in 1947 by Giovanni Rodio.” Source: RevenueBase Database · checked Sep 20, 2026
4	Jäckli Geologie AG	Indirect evidence	8048 Zürich, SwitzerlandHQ checked Sep 20, 2026	51-200	36 contacts →
	Indirect evidence “Die Jäckli Geologie AG ist ein eigenständiges Schweizer Beratungsunternehmen mit verschiedenen Standorten in der Nord- und Zentralschweiz.” Source: RevenueBase Database · checked Sep 20, 2026
5	Friedlipartner AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 20, 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 20, 2026
6	Geoprofile Gmbh	Indirect evidence	Adligenswil, SwitzerlandHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Wir sind ein unabhängiges Unternehmen, das als Spezialist an der Schnittstelle zwischen Baugrund und Bauwerk agiert.” Source: RevenueBase Database · checked Sep 20, 2026
7	Baertschi Partner Bauingenieure AG	Indirect evidence	Baden, SwitzerlandHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “We are your experts for the further development of your properties in the areas of structural analysis, earthquake and fire protection and more!” Source: RevenueBase Database · checked Sep 20, 2026
8	Kellerhals Haefeli AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Willkommen!” Source: RevenueBase Database · checked Sep 20, 2026
9	Geotechnisches Institut AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Wir sind ein unabhängiges Dienstleistungs- und Beratungsunternehmen und arbeiten für Sie in den folgenden Bereichen- Geologie und Geotechnik - Altlasten, Bauschadstoffe und…” Source: RevenueBase Database · checked Sep 20, 2026
10	Gysi Leoni Mader AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Die Gysi Leoni Mader AG ist seit über 35 Jahren schweizweit tätig.” Source: RevenueBase Database · checked Sep 20, 2026
11	Géoval Ingénieurs-Géologues SA	Indirect evidence	Sion, SwitzerlandHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “GéoVal Ingénieurs-Géologues SA est un bureau d’études basé à Sion, actif depuis en Valais dans les domaines de la géotechnique, des dangers naturels, de l’hydrogéologie, de la…” Source: RevenueBase Database · checked Sep 20, 2026
12	BTG Büro FÜR Technische Geologie AG	Indirect evidence	Sargans, SwitzerlandHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Unser Arbeitsalltag ist manchmal abenteuerlich und pionierhaft.” Source: RevenueBase Database · checked Sep 20, 2026
13	Dr. Vollenweider AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Der Boden in Mitteleuropa ist so vielschichtig wie die Kulturen.” Source: RevenueBase Database · checked Sep 20, 2026
14	Résonance Ingénieurs-Conseils	Indirect evidence	Carouge, SwitzerlandHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “RÉSONANCE Ingénieurs-Conseils est une équipe d’experts spécialisés dans les domaines - Du génie garasismique et des sollicitations dynamiques exceptionnelles : détermination de la…” Source: RevenueBase Database · checked Sep 20, 2026
15	Geoalps Engineering SA	Indirect evidence	Faido, SwitzerlandHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “La nostra ditta, con sede a Faido (Ticino, Svizzera) è attiva dal 1994 a livello nazionale ed internazionale nel ramo delle scienze della terra.” Source: RevenueBase Database · checked Sep 20, 2026
16	PNP Geologie & Geotechnik AG	Indirect evidence	Muttenz, SwitzerlandHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Die PNP Geologie & Geotechnik AG ist ein Traditionsbetrieb mit über 30-jähriger Erfahrung in der Nordwestschweiz.” Source: RevenueBase Database · checked Sep 20, 2026
17	Schläpfer & Partner AG Zürich	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Die Firma Schläpfer & Partner ist der führende Experte im Bereich Geotechnik und Spezialtiefbau im Grossraum Zürich.” Source: RevenueBase Database · checked Sep 20, 2026
18	Studersond AG	Indirect evidence	Uebeschi, SwitzerlandHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Verlässliche Daten sind die Grundlage jedes erfolgreichen Bauprojekts.” Source: RevenueBase Database · checked Sep 20, 2026
19	FS Geotechnik AG	Indirect evidence	St. Gallen, SwitzerlandHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Die FS Geotechnik AG ist seit Beginn der 1980er Jahre auf dem gesamten Gebiet der Geologie und Geotechnik beratend und planend tätig.” Source: RevenueBase Database · checked Sep 20, 2026
20	Geotek AG	Indirect evidence	Meiringen, SwitzerlandHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Als die Geotek AG per Anfang 2018 in Meiringen BE gegründet wurde, handelte es sich nicht um eine Neugründung im klassischen Sinn: Die Unternehmung war das Resultat einer…” Source: RevenueBase Database · checked Sep 20, 2026
21	Studer Engineering	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “Studer Engineering is an established company in the field of earthquake engineering and geotechnics since more than 30 years.” Source: RevenueBase Database · checked Sep 20, 2026
22	Baustatik Rubino	Indirect evidence	Minusio, SwitzerlandHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “Baustatik Rubino SAGL è uno studio di ingegneria strutturale e geotecnica a Minusio (TI), specializzato in analisi sismica, progettazione e modellazione di strutture, rilievi…” Source: RevenueBase Database · checked Sep 20, 2026
23	Wanner AG Solothurn	Indirect evidence	Solothurn, SwitzerlandHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
24	Terraqua Engineering AG	Indirect evidence	Uster, SwitzerlandHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “We are a young company but with a long-standing experience and are enthusiastic about creative and innovative solutions in the field of geotechnical and environmental engineering.” Source: RevenueBase Database · checked Sep 20, 2026
25	B I G Büro FÜR Ingenieurgeologie	Indirect evidence	Gümligen, SwitzerlandHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Beratendes Ingenieurgeologiebüro für Baugrundabklärungen, Altlasten, Geothermie-Nutzungen und Naturgefahren.” Source: RevenueBase Database · checked Sep 20, 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: liquefaction assessment 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 liquefaction assessment firms.
Partial evidence: Its own public description names part of liquefaction assessment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name liquefaction assessment 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 49 liquefaction assessment firms based in Switzerland

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Liquefaction assessment firms based in Switzerland at a glance

As of Sep 20, 2026

50.2%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

14.3%Largest-city concentration · Zurich

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 49 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 liquefaction assessment 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 “liquefaction assessment 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 liquefaction assessment 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 liquefaction assessment 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, 213 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 20, 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 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 liquefaction assessment 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 liquefaction assessment firms are there based in Switzerland?

RevenueBase identified 49 liquefaction assessment 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?

Karakas & Français SA, headquartered in Lausanne, tops this list with the largest team on record.

Which city has the most liquefaction assessment firms?

Zurich leads with 7 headquartered companies, followed by Lausanne (3) and Bern (2).

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 213 verified decision-maker contacts tracked across these 49 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 20, 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.