Company lists · Data refreshed November 2026

Top 25 Plant expansion contractors based in Switzerland

RevenueBase identified 730 company matches for plant expansion contractors associated with Switzerland as of November 2026 and tracks 7,806 professional contacts across them, including 3,455 with verified work emails. Zurich is the largest hub.

This list covers company matches for plant expansion 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 November 6, 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 Nov 6, 2026 How this list was built
730Companies
7,806Contacts tracked
3,455Verified emails
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The 25 largest plant expansion contractors based in Switzerland

Ranked by team size
Top 25 of 730 company matches for plant expansion contractors based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchZurich, SwitzerlandHQ recorded Nov 6, 20261,001-5,000571 contacts →

Exact match

“Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLiestal, SwitzerlandHQ recorded Nov 6, 2026501-1,000276 contacts →

Exact match

“For over 90 years, HOLINGER has been solving engineering and scientific tasks in various fields related to the water cycle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPetit-lancy 1, SwitzerlandHQ recorded Nov 6, 2026501-1,000256 contacts →

Exact match

“INDUNI & CIE SA EST NÉE À L’INITIATIVE D’UNE FAMILLE DE PIONNIERS VISIONNAIRES QUI NOUS A LÉGUÉ DES VALEURS ET UNE CULTURE D’ENTREPRISE FORTES.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchGeneva, SwitzerlandHQ recorded Nov 6, 2026201-500200 contacts →

Exact match

“Company overview Egg-Telsa SA is an engineering and contracting firm engaged in electrical & voice/data installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBern 14, SwitzerlandHQ recorded Nov 6, 2026201-500164 contacts →

Exact match

“IUB Engineering AG has been an overall planner for infrastructure systems for over 50 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBuchs, SwitzerlandHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“1959 durch Dialma Jakob Bänziger gegründet - heute eine der führenden Bauingenieurfirmen in der Schweiz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchStadtkreis 9, SwitzerlandHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“Willers is an international engineering company for high-tech buildings and infrastructures.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact match9500, SwitzerlandHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“Wir sind führend in der Industrieplanung, seit 2001.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchHefenhofen, SwitzerlandHQ recorded Nov 6, 2026501-1,00083 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchEnnetbaden, SwitzerlandHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“Gähler Partner steht für ganzheitliches Denken im Planen und Bauen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAarau, SwitzerlandHQ recorded Nov 6, 202651-20078 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchStadtkreis 1 Altstadt, SwitzerlandHQ recorded Nov 6, 202651-20077 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchVillars-ste-croix, SwitzerlandHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Nous sommes une entreprise qui a pour but l'ingénierie, le conseil, la conception, l'établissement de projets, la direction des travaux et l'exploitation dans le domaine des…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchUster, SwitzerlandHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“dsp Ingenieure & Planer AG ist seit 1985 als unabhängiges Ingenieur- und Planungsunternehmen in der Bauwirtschaft erfolgreich in der ganzen Schweiz und im Bereich der…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWil, SwitzerlandHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Bauprojekte sind Teamleistungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact match1920 Martigny, SwitzerlandHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“From the first reflection to the achievement, you can trust our expertise for your ambitious projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchZürich, SwitzerlandHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Als führendes Ingenieur- und Planungsunternehmen in den Bereichen Gebäude, Energie- und Umwelttechnik realisiert die RMB Engineering AG massgeschneiderte Lösungen für…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchEchallens, SwitzerlandHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBulle, SwitzerlandHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“Fondée en 2016 à Bulle, Doutaz SA accompagne ses clients dans la conception et la réalisation de projets immobiliers en Suisse romande.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBasel, SwitzerlandHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Wir sind Ihr Partner für Generalplanung, Projekt- und Baumanagement sowie Architektur und Ingenieurdienstleistungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNaters, SwitzerlandHQ recorded Nov 6, 2026201-50050 contacts →

Exact match

“Energie- & Gebäudetechnik”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchZurich, SwitzerlandHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“Die ILF Schweiz ist ein Ingenieur- und Beratungsunternehmen und Teil der international tätigen ILF-Holding.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBern, SwitzerlandHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Wir sind nicht nur Elektroingenieure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBasel, SwitzerlandHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“The art of engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBern 25, SwitzerlandHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Die BERING ist eine Ingenieurunternehmung für die Beratung und Projektierung von Elektroanlagen aller Art.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 730 plant expansion contractors based in Switzerland

See the full list, filter by size, metro and specialty, and access 3,455 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Plant expansion contractors based in Switzerland at a glance

As of Nov 6, 2026
44.3%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
6.6%Largest-city concentration · Zurich
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
363
11-50
250
51-200
79
201-500
10
501-1,000
5
1,001-5,000
1

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 730 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 “plant expansion 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 3,455 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 November 6, 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.

Plant expansion contractors by metro

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 “plant expansion contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many plant expansion contractors are there based in Switzerland?

RevenueBase identified 730 company matches for plant expansion contractors associated with Switzerland as of November 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?

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

Which city has the most plant expansion contractors?

Zurich leads with 48 company records, followed by Bern (21) and Geneva (18).

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 3,455 professional contacts with verified work emails tracked across these 730 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 November 6, 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.