Company lists · Data refreshed September 2026

Top 25 Subterranean construction specialists based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 50 companies tracked

RevenueBase identified 50 subterranean construction specialists headquartered in Switzerland as of September 2026 and tracks 3,802 professional contacts across them, including 1,655 with verified work emails. Lausanne is the largest hub.

This list covers subterranean construction specialists 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 18, 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 18, 2026 86% judged on-target in blind review

50Companies

3,802Contacts tracked

1,655Verified emails

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The 25 largest subterranean construction specialists based in Switzerland

Ranked by team size

Top 25 of 50 subterranean construction specialists based in Switzerland, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to subterranean construction specialists: 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	Implenia	Partial evidence	Opfikon, SwitzerlandHQ checked Sep 18, 2026	5,001-10,000	3,050 contacts →
	Partial evidence “As Switzerland’s leading construction and real estate service provider, Implenia develops, builds and manages homes, workplaces and infrastructure for future generations in…” Source: RevenueBase Database · checked Sep 18, 2026
2	Rothpletz, Lienhard CIE AG Bauingenieure & Bauunternehmung	Indirect evidence	Aarau, SwitzerlandHQ checked Sep 18, 2026	51-200	69 contacts →
	Indirect evidence “Bauunternehmung und Ingenieurbüro unter einem Dach Als einzige Schweizer Unternehmung verbinden wir seit 1918 Planung und Ausführung im Bauwesen.” Source: RevenueBase Database · checked Sep 18, 2026
3	Renesco	Indirect evidence	Moosseedorf, SwitzerlandHQ checked Sep 18, 2026	501-1,000	60 contacts →
	Indirect evidence “WATERPROOFING Our specialized division for all kind of sealing operations in underground structures against pressurized and non-pressurized water.” Source: RevenueBase Database · checked Sep 18, 2026
4	Infra Tunnel SA	Indirect evidence	Marin-epagnier, SwitzerlandHQ checked Sep 18, 2026	51-200	47 contacts →
	Indirect evidence “Infra Tunnel construit et réhabilite des ouvrages souterrains d'infrastructures, hydrauliques, et industriels, dans toute la Suisse.” Source: RevenueBase Database · checked Sep 18, 2026
5	ILF Consulting Engineers In Switzerland	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 18, 2026	51-200	37 contacts →
	Indirect evidence “Die ILF Schweiz ist ein Ingenieur- und Beratungsunternehmen und Teil der international tätigen ILF-Holding.” Source: RevenueBase Database · checked Sep 18, 2026
6	Lötscher Plus Gruppe	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 18, 2026	201-500	34 contacts →
	Indirect evidence “Der Weg in die Zukunft erfordert starke Verbindungen.” Source: RevenueBase Database · checked Sep 18, 2026
7	GVH Ingénieurs Civils EPF SIA	Indirect evidence	Tramelan, SwitzerlandHQ checked Sep 18, 2026	51-200	31 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 18, 2026
8	Isen Tiefbau AG	Indirect evidence	Otelfingen, SwitzerlandHQ checked Sep 18, 2026	201-500	30 contacts →
	Indirect evidence “DIE ISEN TIEFBAU AG WURDE 1991 ALS TIEFBAUUNTERNEHMEN MIT 4 ANGESTELLTEN GEGRÜNDET.” Source: RevenueBase Database · checked Sep 18, 2026
9	Kern Tunneltechnik	Indirect evidence	Lugano - Paradiso, SwitzerlandHQ checked Sep 18, 2026	11-50	18 contacts →
	Indirect evidence “KERN Tunneltechnik SA is an international company providing high-tech solutions for Tunnelling.” Source: RevenueBase Database · checked Sep 18, 2026
10	Waprotec AG	Strong evidence	Widnau, SwitzerlandHQ checked Sep 18, 2026	51-200	12 contacts →
	Strong evidence “As a construction company, waprotec ag is your reliable partner in all areas of execution and implementation of plans drawn up by planners specialising in the sealing of buildings…” Source: RevenueBase Database · checked Sep 18, 2026
11	Terratech AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 18, 2026	11-50	11 contacts →
	Indirect evidence “Die Unternehmung Von Zürich-Oerlikon aus erstellen wir Gesamtbaugruben hauptsächlich im Grossraum Zürich.” Source: RevenueBase Database · checked Sep 18, 2026
12	Galli Engineering SA	Partial evidence	Grono, SwitzerlandHQ checked Sep 18, 2026	1-10	9 contacts →
	Partial evidence “Galli Engineering SA based in Grono GR and Wettingen AG, is an engineering company active in the field of design and customer support for the construction of large civil…” Source: RevenueBase Database · checked Sep 18, 2026
13	Grund- UND Tiefbau AG Basel	Indirect evidence	Basel, SwitzerlandHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence “Als Spezialisten mit vielfältiger Erfahrung in noch so heiklen und komplexen Herausforderungen beraten wir Sie kompetent und individuell.” Source: RevenueBase Database · checked Sep 18, 2026
14	Alpha Tief- UND Betonbau AG	Indirect evidence	Weinfelden, SwitzerlandHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence “Im Tief- und Betonbau gehts handfest zu und her.” Source: RevenueBase Database · checked Sep 18, 2026
15	Echenard SA	Indirect evidence	Bex, SwitzerlandHQ checked Sep 18, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
16	Contratto AG	Indirect evidence	Goldau, SwitzerlandHQ checked Sep 18, 2026	11-50	7 contacts →
	Indirect evidence “Wir sind ein etabliertes, regionales Tiefbauunternehmen mit langjähriger Familientradition.” Source: RevenueBase Database · checked Sep 18, 2026
17	Buntech Gmbh Infrastruktur FÜR Tunnelanlagen	Indirect evidence	Langenthal, SwitzerlandHQ checked Sep 18, 2026	1-10	5 contacts →
	Indirect evidence “Strassentunnel #Bahntunnel #BSA #Gewerke #Tunnelinfrastruktur #ICT #BSA-Stellen #hiring KLEINES INGENIEURBÜRO – GROSSES BSA-FACHWISSEN Mit Leidenschaft nehmen wir bei buntech jede…” Source: RevenueBase Database · checked Sep 18, 2026
18	Oppidum	Indirect evidence	Lucerne, SwitzerlandHQ checked Sep 18, 2026	51-200	5 contacts →
	Indirect evidence “Oppidum underground living understands that protection must also reflect the beauty and vibrancy of the home.” Source: RevenueBase Database · checked Sep 18, 2026
19	Eccus LTD	Indirect evidence	Jongny, SwitzerlandHQ checked Sep 18, 2026	1-10	5 contacts →
	Indirect evidence “Need extra space?” Source: RevenueBase Database · checked Sep 18, 2026
20	Infranext	Indirect evidence	Kriens, SwitzerlandHQ checked Sep 18, 2026	1-10	5 contacts →
	Indirect evidence “Infranext ist ein auf die Realisierung von Infrastrukturprojekten spezialisiertes Bauingenieurbüro.” Source: RevenueBase Database · checked Sep 18, 2026
21	Timbase	Indirect evidence	Thun, SwitzerlandHQ checked Sep 18, 2026	1-10	4 contacts →
	Indirect evidence “Wir bieten Keller, Untergeschosse und erdberührte Bauteile aus Holz als Totalunternehmer an – von der Planung und Projektierung über die Montage bis hin zur Garantie.” Source: RevenueBase Database · checked Sep 18, 2026
22	Gasser Engineering	Indirect evidence	Lungern, SwitzerlandHQ checked Sep 18, 2026	1-10	3 contacts →
	Indirect evidence “Von der Konzeptstudie bis zum schlüsselfertigen Bauwerk, alles aus einer Hand: Durch die Vernetzung der Schnittstellen zwischen Planung und Ausführung schaffen wir Mehrwert für…” Source: RevenueBase Database · checked Sep 18, 2026
23	Fretus AG	Indirect evidence	Bad Zurzach, SwitzerlandHQ checked Sep 18, 2026	11-50	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
24	Zmoos SA	Indirect evidence	Montagny-près-yverdon, SwitzerlandHQ checked Sep 18, 2026	11-50	3 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 18, 2026
25	Wistrag Strassen- UND Tiefbau AG	Partial evidence	SwitzerlandHQ checked Sep 18, 2026	11-50	2 contacts →
	Partial evidence “WISTRAG Strassen- und Tiefbau AG is a construction company based out of 30 Scheideggstrasse, Winterthur, Switzerland.” Source: RevenueBase Database · checked Sep 18, 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: subterranean construction specialists. 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 subterranean construction specialists.
Partial evidence: Its own public description names part of subterranean construction specialists, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subterranean construction specialists. 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 50 subterranean construction specialists based in Switzerland

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Subterranean construction specialists based in Switzerland at a glance

As of Sep 18, 2026

43.5%Verified-email coverage

76.0Average contacts per company

11-50Median size (employees)

4.0%Largest-city concentration · Lausanne

Sep 18, 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 50 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 subterranean construction specialists, 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 “subterranean construction specialists”. 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 subterranean construction specialists), 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 subterranean construction specialists, 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, 1,655 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 18, 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 subterranean construction specialists, 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 subterranean construction specialists are there based in Switzerland?

RevenueBase identified 50 subterranean construction specialists 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?

Implenia, headquartered in Opfikon, tops this list with the largest team on record.

Which city has the most subterranean construction specialists?

Lausanne leads with 2 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 1,655 verified decision-maker contacts tracked across these 50 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 18, 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.