Company lists · Data refreshed September 2026

Top 24 Tunnel construction contractors based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 39 companies tracked

RevenueBase identified 39 company matches for tunnel construction contractors associated with Switzerland as of September 2026 and tracks 3,888 professional contacts across them, including 1,661 with verified work emails. Lausanne is the largest hub.

This list covers company matches for tunnel construction contractors associated with Switzerland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

39Companies

3,888Contacts tracked

1,661Verified emails

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The 24 largest tunnel construction contractors based in Switzerland

Ranked by team size

Top 24 of 39 company matches for tunnel construction contractors based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Implenia	Exact match	Opfikon, SwitzerlandHQ recorded Sep 19, 2026	5,001-10,000	3,050 contacts →
	Exact match “As Switzerland’s leading construction and real estate service provider, Implenia develops, builds and manages homes, workplaces and infrastructure for future generations in…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Pizzarotti SA	Exact match	Bellinzona, SwitzerlandHQ recorded Sep 19, 2026	51-200	120 contacts →
	Exact match “Impresa di costruzioni attiva in tutto il territorio elvetico nella realizzazione di infrastrutture stradali e ferroviarie, scavi per tunnel e lavori sotterranei, edilizia civile…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Rothpletz, Lienhard CIE AG Bauingenieure & Bauunternehmung	Exact match	Aarau, SwitzerlandHQ recorded Sep 19, 2026	51-200	69 contacts →
	Exact match “Bauunternehmung und Ingenieurbüro unter einem Dach Als einzige Schweizer Unternehmung verbinden wir seit 1918 Planung und Ausführung im Bauwesen.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Locher Ingenieure	Exact match	Stadtkreis 1 Altstadt, SwitzerlandHQ recorded Sep 19, 2026	51-200	67 contacts →
	Exact match “In der Bearbeitung von interdisziplinären Grossprojekten bis zu kleinen «Eine-Person-Projekten» bietet Locher Ingenieure das ideale Umfeld.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Renesco	Exact match	Moosseedorf, SwitzerlandHQ recorded Sep 19, 2026	501-1,000	60 contacts →
	Exact match “WATERPROOFING Our specialized division for all kind of sealing operations in underground structures against pressurized and non-pressurized water.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Infra Tunnel SA	Exact match	Marin-epagnier, SwitzerlandHQ recorded Sep 19, 2026	51-200	47 contacts →
	Exact match “Infra Tunnel construit et réhabilite des ouvrages souterrains d'infrastructures, hydrauliques, et industriels, dans toute la Suisse.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	ILF Consulting Engineers In Switzerland	Exact match	Zurich, SwitzerlandHQ recorded Sep 19, 2026	51-200	37 contacts →
	Exact match “Die ILF Schweiz ist ein Ingenieur- und Beratungsunternehmen und Teil der international tätigen ILF-Holding.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	ZS Ingénieurs Civils	Exact match	Petit Lancy, SwitzerlandHQ recorded Sep 19, 2026	11-50	24 contacts →
	Exact match “Depuis 1969, le bureau zs ingénieurs civils est spécialisé dans la conception et réalisation de projets d’ingénierie civile.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Filippini & Partner Ingegneria SA	Exact match	Biasca, SwitzerlandHQ recorded Sep 19, 2026	11-50	19 contacts →
	Exact match “Filippini & Partner Ingegneria SA è una società indipendente di ingegneria, fondata nel 1972 a Biasca (Ct.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Kern Tunneltechnik	Exact match	Lugano - Paradiso, SwitzerlandHQ recorded Sep 19, 2026	11-50	18 contacts →
	Exact match “KERN Tunneltechnik SA is an international company providing high-tech solutions for Tunnelling.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Mauderli AG	Exact match	Schachen, SwitzerlandHQ recorded Sep 19, 2026	51-200	15 contacts →
	Exact match “For over 50 years, MAUDERLI AG has delivered custom-engineered infrastructure systems for tunneling, road construction and civil engineering - from planning to the job site.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Jackcontrol Ag, Switzerland	Exact match	Glarus, SwitzerlandHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “Jackcontrol, a Swiss Engineering Company founded in 2004, is your innovative and reliable Partner for demanding Pipe Jacking and Microtunneling projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	F. Preisig Ag, Ingenieure UND Planer	Exact match	SwitzerlandHQ recorded Sep 19, 2026	201-500	6 contacts →
	Exact match “F.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Buntech Gmbh Infrastruktur FÜR Tunnelanlagen	Exact match	Langenthal, SwitzerlandHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match “Strassentunnel #Bahntunnel #BSA #Gewerke #Tunnelinfrastruktur #ICT #BSA-Stellen #hiring KLEINES INGENIEURBÜRO – GROSSES BSA-FACHWISSEN Mit Leidenschaft nehmen wir bei buntech jede…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Infranext	Exact match	Kriens, SwitzerlandHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match “Infranext ist ein auf die Realisierung von Infrastrukturprojekten spezialisiertes Bauingenieurbüro.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Gebrüder Zengaffinen	Exact match	Steg Vs, SwitzerlandHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match “Hochbau, Tiefbau, Kieswerk, Altlasten, Spezialtiefbau, Tunnelbau, Natursteinmauer, Erdbau, EFH, Einfamilienhaus” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	K-Tec Kummer Technologies AG	Exact match	Birmensdorf (zürich), SwitzerlandHQ recorded Sep 19, 2026	1-10	4 contacts →
	Exact match “K-Tec Kummer Technologies AG ist auf Beratung und Projektmanagement von Infrastruktur- und Entwicklungsprojekten spezialisiert, mit bisherigem Hauptfokus auf Eisenbahnstrecken…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Gasser Engineering	Exact match	Lungern, SwitzerlandHQ recorded Sep 19, 2026	1-10	3 contacts →
	Exact match “Von der Konzeptstudie bis zum schlüsselfertigen Bauwerk, alles aus einer Hand: Durch die Vernetzung der Schnittstellen zwischen Planung und Ausführung schaffen wir Mehrwert für…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Fretus AG	Exact match	Bad Zurzach, SwitzerlandHQ recorded Sep 19, 2026	11-50	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Zmoos SA	Exact match	Montagny-près-yverdon, SwitzerlandHQ recorded Sep 19, 2026	11-50	3 contacts →
	Exact match “Spécialisés dans les travaux en tranchée et travaux sans tranchée, Zmoos SA offre des prestations de qualité reconnues dans toute la Suisse dans les domaines suivants : fouilles à…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Wistrag Strassen- UND Tiefbau AG	Exact match	SwitzerlandHQ recorded Sep 19, 2026	11-50	2 contacts →
	Exact match “WISTRAG Strassen- und Tiefbau AG is a construction company based out of 30 Scheideggstrasse, Winterthur, Switzerland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Stabilis Ingénieurs Sàrl	Exact match	Sion, SwitzerlandHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Arnold Schnyder Tiefbau AG	Exact match	Vorderthal, SwitzerlandHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Im Bereich des Tiefbaus können wir Ihnen ein 360° Angebot bieten.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Geomechanical Consulting International	Exact match	Lausanne, SwitzerlandHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “G.C.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “tunnel construction contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 39 tunnel construction contractors based in Switzerland

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Tunnel construction contractors based in Switzerland at a glance

As of Sep 19, 2026

42.7%Verified-email coverage

99.7Average contacts per company

11-50Median size (employees)

5.1%Largest-city concentration · Lausanne

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

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 39 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Switzerland whose business descriptions match “tunnel construction contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,661 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “tunnel construction contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tunnel construction contractors are there based in Switzerland?

RevenueBase identified 39 company matches for tunnel construction contractors associated with Switzerland as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Implenia tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most tunnel construction contractors?

Lausanne leads with 2 company records, followed by Regensdorf (2) and Wangen Sz (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,661 professional contacts with verified work emails tracked across these 39 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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.