Company lists · Data refreshed September 2026
Top 25 Environmental engineering construction firms based in Switzerland
RevenueBase identified 431 environmental engineering construction firms headquartered in Switzerland as of September 2026 and tracks 5,552 professional contacts across them, including 2,709 with verified work emails. Zurich is the largest hub.
This list covers environmental engineering construction firms 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 16, 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.
The 25 largest environmental engineering construction firms based in Switzerland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 563 contacts → | ||||
Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 462 contacts → | ||||
Indirect evidence “Gruner at a glance Founded: 1862 in Basel, Switzerland Legal form: Since 1970, public limited company owned by the founding families and employees Employees: more than 1,200 from…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 265 contacts → | ||||
Partial evidence “For over 90 years, HOLINGER has been solving engineering and scientific tasks in various specialist areas related to the water cycle.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 156 contacts → | ||||
Partial evidence “IUB Engineering AG has been an overall planner for infrastructure systems for over 50 years.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 101 contacts → | ||||
Indirect evidence “Unter dem Motto „Einfach.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 86 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 69 contacts → | ||||
Indirect evidence “Fondée en 1955 à Lausanne, sd ingénierie se compose aujourd’hui d’environ 180 collaborateurs répartis au sein de sept filiales cantonales.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 67 contacts → | ||||
Indirect evidence “In der Bearbeitung von interdisziplinären Grossprojekten bis zu kleinen «Eine-Person-Projekten» bietet Locher Ingenieure das ideale Umfeld.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 66 contacts → | ||||
Indirect evidence “Marti arc jura, forte de son expérience, vous apporte les compétences d'une entreprise internationale avec des partenaires régionaux connaissant parfaitement les spécificités de…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 53 contacts → | ||||
Indirect evidence “con 140 collaboratori è attiva in diversi ambiti dell'ingegneria, tra cui ingegneria civile, restauro di monumenti storici, geologia, impiantistica, fisica della costruzione…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 47 contacts → | ||||
Indirect evidence “Ecoservices SA offre des prestations d'ingénierie dans les domaines de l'environnement, de la santé-sécurité au travail et de l'amiante.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 47 contacts → | ||||
Partial evidence “La construction est notre passion!” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 44 contacts → | ||||
Indirect evidence “Mit unseren Entwicklungs, Planungs- und Gestaltungskompetenzen formen wir den Lebensraum so, dass sich die Menschen darin sicher und wohl fühlen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 44 contacts → | ||||
Indirect evidence “Vanoli AG – Baukunst zum Verlieben Perfektion von der Bauplanung bis zur Bauabnahme, innovative Ideen und Liebe zum Detail in den Bereichen Bahninfrastruktur – Gleistiefbau -…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 40 contacts → | ||||
Indirect evidence “Langjährige Erfahrung und Nähe zu aktuellen Entwicklungen in sämtlichen umweltrelevanten Fragestellungen machen Ecosens zum führenden Beratungsunternehmen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 39 contacts → | ||||
Indirect evidence “Wir sind Ihr Partner für Generalplanung, Projekt- und Baumanagement sowie Architektur und Ingenieurdienstleistungen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 37 contacts → | ||||
Partial evidence “The art of engineering.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 37 contacts → | ||||
Strong evidence “Prona Romandie SA provides environmental engineering and health and safety services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 35 contacts → | ||||
Partial evidence “edms SA est un bureau d'ingénieurs pluridisciplinaire dans le domaine de la construction.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 31 contacts → | ||||
Indirect evidence “Evolve SA è una società di ingegneria svizzera con oltre 15 anni di esperienza nella progettazione tecnica, realizzazione e gestione di edifici e infrastrutture.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 31 contacts → | ||||
Indirect evidence “1922 von Ernst Rathgeb gegründet, hat unser Unternehmen bereits in frühen Jahren an wichtigen Bauwerken wie z.B.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 28 contacts → | ||||
Indirect evidence “Notre bureau est une société d'ingénieurs spécialisés dans les principaux domaines de l'ingénierie civile, ce qui lui permet de résoudre les problèmes complexes liés à l'étude et…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 28 contacts → | ||||
Indirect evidence “Wir sind eine eigenständige Ingenieurunternehmung für Planung, Beratung und Realisierung mit Schwergewicht im Siedlungswasserbau.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 28 contacts → | ||||
Indirect evidence “Wir beraten seit 1974 Bauherren und Planer in allen Fragen rund um den Baugrund.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 27 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: environmental engineering construction firms. 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 environmental engineering construction firms.
- Partial evidence
- Its own public description names part of environmental engineering construction firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name environmental engineering construction firms. 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 431 environmental engineering construction firms based in Switzerland
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Environmental engineering construction firms based in Switzerland at a glance
As of Sep 16, 2026Companies by employee count
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 431 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 environmental engineering construction firms, 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 “environmental engineering construction firms”. 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 environmental engineering construction firms), 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 environmental engineering construction firms, 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, 2,709 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 16, 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.
Environmental engineering construction firms by metro
- Environmental engineering construction firms in Zurich33
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 environmental engineering construction firms, 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 environmental engineering construction firms are there based in Switzerland?
RevenueBase identified 431 environmental engineering construction firms 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?
Amstein Walthert, headquartered in Zurich, tops this list with the largest team on record.
Which city has the most environmental engineering construction firms?
Zurich leads with 33 headquartered companies, followed by Bern (11) and Geneve (9).
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 2,709 verified decision-maker contacts tracked across these 431 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 16, 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.
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