Company lists · Data refreshed November 2026

Top 25 Ecological engineering firms based in Switzerland

RevenueBase identified 171 company matches for ecological engineering firms associated with Switzerland as of November 2026 and tracks 2,300 professional contacts across them, including 1,167 with verified work emails. Zurich is the largest hub.

This list covers company matches for ecological engineering firms 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
171Companies
2,300Contacts tracked
1,167Verified emails
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The 25 largest ecological engineering firms based in Switzerland

Ranked by team size
Top 25 of 171 company matches for ecological engineering firms 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 matchAarau Luzern Wohlen Zürich, SwitzerlandHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Mit unseren Entwicklungs, Planungs- und Gestaltungskompetenzen formen wir den Lebensraum so, dass sich die Menschen darin sicher und wohl fühlen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBiberist, SwitzerlandHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Seit 1942 leistet BSB + Partner relevante Beiträge zu einer nachhaltigen Entwicklung und trägt dazu bei, die Zukunft umsichtig und mit langfristigem Blick zu formen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWallisellen, SwitzerlandHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Langjährige Erfahrung und Nähe zu aktuellen Entwicklungen in sämtlichen umweltrelevanten Fragestellungen machen Ecosens zum führenden Beratungsunternehmen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPetit Lancy 1, SwitzerlandHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“edms SA est un bureau d'ingénieurs pluridisciplinaire dans le domaine de la construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCartigny, SwitzerlandHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Depuis 1862, nous créons et entretenons des espaces naturels et paysagers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNeuchâtel, SwitzerlandHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Mauler SA, bureau d’ingénierie civile et environnementale établi depuis 1950 à Neuchâtel, est spécialisé dans la planification, la conception et la réalisation de projets, il…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchRegensdorf, SwitzerlandHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“EFP AG Ingenieure Planer Geometer setzen sich für zukunftsgerichtete Ingenieurlösungen ein, die den Bedürfnissen der Nutzerinnen und Nutzer genauso verpflichtet sind wie einem…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGeneve Carouge, SwitzerlandHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Cement Engineering SA (CESA) Engineering is a professionals business!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBern, SwitzerlandHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Wir sind eine eigenständige Ingenieurunternehmung für Planung, Beratung und Realisierung mit Schwergewicht im Siedlungswasserbau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchZurich, SwitzerlandHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“planikum gestaltet zukunftsorientierte Lebensräume und Infrastrukturen für Stadt und Land.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGeneva, SwitzerlandHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“B+S INGENIEURS SA est composé de 37 collaborateurs bénéficiant de compétences élargies dans les domaines de l’ingénierie structurale (structures porteuses et ouvrages d’art), du…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHasle B.b., SwitzerlandHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Wir sind ein Team von Ingenieuren, Bautechnikern und qualifizierten Bauzeichnern und Ihr Ansprechpartner für alle Aufgaben im Ingenieurbau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMonthey, SwitzerlandHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Kurmann Cretton Ingénieurs SA, bureau d'ingénieurs civils pluridisciplinaire, créé en 1962 à Monthey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLes Reussilles, SwitzerlandHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Ingénierie de l’environnement du diagnostic à la réalisation”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWeinfelden, SwitzerlandHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Ingenias ist Ihr Umwelt-Ingenieurbüro für anspruchsvolle Aufgaben in den Bereichen Umwelt, Wasser und Geologie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchGeneva, SwitzerlandHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“L’architecture, l’habitat sain, l’environnement et les énergies renouvelables sont les matières au cœur de notre activité.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGeneva, SwitzerlandHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“SB technique est un bureau d'Ingénieur Conseil en chauffage, ventilation, climatisation et sécurité du bâtiment développant des concepts énergétiques ambitieux pour des…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchZürich + Bern, SwitzerlandHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“DE] Das Ingenieurbüro Flussbau AG SAH bearbeitet seit 1993 mit viel Fachwissen und grossem Engagement Projekte und Studien in den Bereichen Fluss- und Wasserbau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchChâtel-st-denis, SwitzerlandHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“MGI ingénieurs SA est un bureau d’ingénieurs conseils en génie-civil et environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchZürich, SwitzerlandHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Die Eichenberger AG (EAG) erbringt in den nachfolgenden Fachbereichen seit 1940 innovative, breitgefächerte und nachhaltige Dienstleistungen: Allgemeiner Tiefbau- Strassen- und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBrig, SwitzerlandHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Wir sind Ihr zuverlässiger und engagierter Partner für eine zielgerichtete und faire Zusammenarbeit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRothenburg, SwitzerlandHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Wir sind ein unabhängiges Beratungsunternehmen für Umweltfragen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSion, SwitzerlandHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Fondé en 1991, le bureau d’étude Drosera Ecologie Appliquée SA met au service des collectivités publiques et des entreprises privées ses compétences dans le domaine de…”

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

Showing 25 of 171 ecological engineering firms based in Switzerland

See the full list, filter by size, metro and specialty, and access 1,167 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ecological engineering firms based in Switzerland at a glance

As of Nov 6, 2026
50.7%Verified-email coverage
13.5Average contacts per company
1-10Median size (employees)
6.4%Largest-city concentration · Zurich
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
96
11-50
62
51-200
9
201-500
1
501-1,000
1
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 171 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 “ecological engineering firms” 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 1,167 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.

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 “ecological engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ecological engineering firms are there based in Switzerland?

RevenueBase identified 171 company matches for ecological engineering firms 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 ecological engineering firms?

Zurich leads with 11 company records, followed by Bern (9) and Geneva (9).

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 1,167 professional contacts with verified work emails tracked across these 171 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.