Company lists · Data refreshed September 2026

Top 25 Municipal infrastructure contractors based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 64 companies tracked

RevenueBase identified 64 municipal infrastructure contractors headquartered in Switzerland as of September 2026 and tracks 329 professional contacts across them, including 132 with verified work emails. Wil is the largest hub.

This list covers municipal infrastructure contractors 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 17, 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 17, 2026 86% judged on-target in blind review

64Companies

329Contacts tracked

132Verified emails

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The 25 largest municipal infrastructure contractors based in Switzerland

Ranked by team size

Top 25 of 64 municipal infrastructure contractors based in Switzerland, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to municipal infrastructure contractors: 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	ZS Ingénieurs Civils	Indirect evidence	Petit Lancy, SwitzerlandHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “Depuis 1969, le bureau zs ingénieurs civils est spécialisé dans la conception et réalisation de projets d’ingénierie civile.” Source: RevenueBase Database · checked Sep 17, 2026
2	Tozzo AG	Indirect evidence	Bubendorf, SwitzerlandHQ checked Sep 17, 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 17, 2026
3	Troger SA	Indirect evidence	Vésenaz, SwitzerlandHQ checked Sep 17, 2026	51-200	23 contacts →
	Indirect evidence “Fondée à Genève en 1961, Troger SA couvre l’ensemble des métiers de la gestion de l’eau et du gaz.” Source: RevenueBase Database · checked Sep 17, 2026
4	Blesshess	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “Anspruchsvolle Bauwerke sind unser Antrieb.” Source: RevenueBase Database · checked Sep 17, 2026
5	Fretz Kanal-Service AG	Indirect evidence	Cham, SwitzerlandHQ checked Sep 17, 2026	51-200	17 contacts →
	Indirect evidence “Seit 1954 besteht das Unternehmen, das einst von der Familie Walter Fretz gegründet wurde.” Source: RevenueBase Database · checked Sep 17, 2026
6	WBI AG	Indirect evidence	Schaffhausen, SwitzerlandHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “WBI-Haupttätigkeitsgebiete: Infrastrukturbau: Strassenbau, Bahnbau, Werkleitungsbau, Entwässerungsplanung, Wasserversorgung, Quartierplanung Konstruktiver Ingenieurbau…” Source: RevenueBase Database · checked Sep 17, 2026
7	Vonplon Strassenbau AG	Indirect evidence	Baar, SwitzerlandHQ checked Sep 17, 2026	51-200	14 contacts →
	Indirect evidence “Seit über 45 Jahren zuverlässig im Strassen- und Tiefbau Die Vonplon Strassenbau AG steht seit 1977 für Qualität, Zuverlässigkeit und Kompetenz im Strassen- und Tiefbau.” Source: RevenueBase Database · checked Sep 17, 2026
8	Wirz AG Bauunternehmung	Indirect evidence	Bern, SwitzerlandHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
9	Echenard SA	Indirect evidence	Bex, SwitzerlandHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
10	Duckert SA	Indirect evidence	2016 Cortaillod, SwitzerlandHQ checked Sep 17, 2026	51-200	7 contacts →
	Indirect evidence “Nos équipes sont spécialisées dans les travaux de génie civil, construction de canalisations d'eaux et industrielles, construction et entretien des routes, tous travaux de…” Source: RevenueBase Database · checked Sep 17, 2026
11	Büwe Tiefbau AG	Indirect evidence	Rotkreuz, SwitzerlandHQ checked Sep 17, 2026	51-200	7 contacts →
	Indirect evidence “Die Büwe Tiefbau AG wurde 1985 von Toni Bühler und André Weibel gegründet – mit vier Mitarbeitenden, einem Kleinbagger und einigen Kleinmaschinen.” Source: RevenueBase Database · checked Sep 17, 2026
12	H. Graf AG	Indirect evidence	Zufikon, SwitzerlandHQ checked Sep 17, 2026	51-200	6 contacts →
	Indirect evidence “Seit über 50 Jahren realisiert die H.” Source: RevenueBase Database · checked Sep 17, 2026
13	Frei Infra AG	Indirect evidence	Ennetturgi, SwitzerlandHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence “Rohrleitungsbau - Gas- und Wasserleitungen - Abwasserleitungen - Anergieleitungen -Anlagebau - Unterhaltsarbeiten - Hydranten- und Schieberwartungen - Reservoirreinigungen -…” Source: RevenueBase Database · checked Sep 17, 2026
14	Esslinger AG	Indirect evidence	Wangen-brüttisellen, SwitzerlandHQ checked Sep 17, 2026	51-200	6 contacts →
	Indirect evidence “Wir bauen mit Charkter.” Source: RevenueBase Database · checked Sep 17, 2026
15	Fahrgrund AG	Indirect evidence	Lenzburg, SwitzerlandHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
16	SPI Planer UND Ingenieure AG	Indirect evidence	Derendingen, SwitzerlandHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Wir arbeiten mit Beton, Stahl oder Holz und realisieren Infrastrukturen für Verkehr, Wasser, Abwasser, Energie und Kommunikation.” Source: RevenueBase Database · checked Sep 17, 2026
17	Alcord Construction And CO	Indirect evidence	Cossonay-ville, SwitzerlandHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “Avec enthousiasme, confiance et volonté, nous offrons nos compétences et notre expérience à notre clientèle, afin de les satisfaire entièrement.” Source: RevenueBase Database · checked Sep 17, 2026
18	Zweili Infraplan AG	Indirect evidence	Stans, SwitzerlandHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “Nach knapp 20 Jahren Berufserfahrungen in verschiedenen Unternehmen der Zentralschweiz hat sich Reto Zweili im Herbst 2017 entschieden, sein eigenes Unternehmen im Bereich der…” Source: RevenueBase Database · checked Sep 17, 2026
19	TPA SA	Indirect evidence	Coffrane, SwitzerlandHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “TPA SA est une entreprise active dans le domaine de la construction, spécialisée dans les travaux publics, le bâtiment, la rénovation et la transformation.” Source: RevenueBase Database · checked Sep 17, 2026
20	Fleutry SA	Indirect evidence	Fully, SwitzerlandHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “En mettant à disposition de notre clientèle une équipe compétente et dynamique ainsi que des équipements fiables et performants, nous garantissons des services rapides et adaptés.” Source: RevenueBase Database · checked Sep 17, 2026
21	Niklaus Strassen- UND Tiefbau AG	Indirect evidence	Bellach, SwitzerlandHQ checked Sep 17, 2026	11-50	4 contacts →
	Indirect evidence “Strassen- und Tiefbauarbeit - Vertrauen Sie auf Qualität und Erfahrung - für Strassen, die verbinden.” Source: RevenueBase Database · checked Sep 17, 2026
22	BAY BAU AG	Indirect evidence	Konolfingen, SwitzerlandHQ checked Sep 17, 2026	51-200	3 contacts →
	Indirect evidence “Hochbau, Tiefbau, Strassenbau, Umbau, Renovationen, Abbruch, Asbestsanierung, Betonbohren, Betonfräsen, Kundenmaurer” Source: RevenueBase Database · checked Sep 17, 2026
23	Strazo Strassen UND Tiefbau AG	Indirect evidence	Hinwil, SwitzerlandHQ checked Sep 17, 2026	11-50	3 contacts →
	Indirect evidence “Strazo Strassen und Tiefbau is a retail company based out of STUDBACHSTRASSE 12, Hinwil, Switzerland.” Source: RevenueBase Database · checked Sep 17, 2026
24	SOS Rail Sàrl	Indirect evidence	Le Mont-sur-lausanne, SwitzerlandHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “La société a pour but l'installation, la construction, la maintenance, l'exploitation et toute prestation de service dans le domaine de l'énergie, des télécommunications, des…” Source: RevenueBase Database · checked Sep 17, 2026
25	Florey Road	Indirect evidence	Salgesch, SwitzerlandHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “Wir erbringen folgende Leistungen: Verkauf von Kommunalmaschinen, Fahrzeuge und Geräte für Strassensicherheit und -pflege.” Source: RevenueBase Database · checked Sep 17, 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: municipal infrastructure contractors. 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 municipal infrastructure contractors.
Partial evidence: Its own public description names part of municipal infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name municipal infrastructure contractors. 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 64 municipal infrastructure contractors based in Switzerland

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Municipal infrastructure contractors based in Switzerland at a glance

As of Sep 17, 2026

40.1%Verified-email coverage

5.1Average contacts per company

1-10Median size (employees)

4.7%Largest-city concentration · Wil

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 64 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 municipal infrastructure contractors, 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 “municipal infrastructure contractors”. 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 municipal infrastructure contractors), 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 municipal infrastructure contractors, 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, 132 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 17, 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 municipal infrastructure contractors, 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 municipal infrastructure contractors are there based in Switzerland?

RevenueBase identified 64 municipal infrastructure contractors 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?

ZS Ingénieurs Civils, headquartered in Petit Lancy, tops this list with the largest team on record.

Which city has the most municipal infrastructure contractors?

Wil leads with 3 headquartered companies, followed by Bern (2) and Brig (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 132 verified decision-maker contacts tracked across these 64 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 17, 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.