Company lists · Data refreshed September 2026

Top 25 Environmental consulting firms for construction based in Switzerland

Name: Environmental consulting firms for construction based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 384 companies tracked

RevenueBase identified 384 environmental consulting firms for construction headquartered in Switzerland as of September 2026 and tracks 4,847 professional contacts across them, including 2,303 with verified work emails. Zurich is the largest hub.

This list covers environmental consulting firms for construction 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 28, 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 28, 2026 86% judged on-target in blind review

384Companies

4,847Contacts tracked

2,303Verified emails

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The 25 largest environmental consulting firms for construction based in Switzerland

Ranked by team size

Top 25 of 384 environmental consulting firms for construction based in Switzerland, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to environmental consulting firms for construction: 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	Amstein Walthert	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	1,001-5,000	563 contacts →
	Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 28, 2026
2	Gruner	Indirect evidence	Basel, SwitzerlandHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
3	Holinger	Indirect evidence	Liestal, SwitzerlandHQ checked Sep 28, 2026	501-1,000	265 contacts →
	Indirect 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 28, 2026
4	IUB Engineering LTD	Indirect evidence	Bern 14, SwitzerlandHQ checked Sep 28, 2026	201-500	156 contacts →
	Indirect evidence “IUB Engineering AG has been an overall planner for infrastructure systems for over 50 years.” Source: RevenueBase Database · checked Sep 28, 2026
5	Jauslin Stebler AG	Indirect evidence	Muttenz, SwitzerlandHQ checked Sep 28, 2026	51-200	108 contacts →
	Indirect evidence “Die komplexen Rahmenbedingungen erfordern eine ganzheitliche Sicht der Probleme, kreative Prozesse und eine entsprechend eingespielte Organisation.” Source: RevenueBase Database · checked Sep 28, 2026
6	Gartenmann Engineering AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 28, 2026	51-200	71 contacts →
	Indirect evidence “Wir sind ein Team von Spezialingenieuren/innen und Berater/innen.” Source: RevenueBase Database · checked Sep 28, 2026
7	Betelec SA	Indirect evidence	Villars-ste-croix, SwitzerlandHQ checked Sep 28, 2026	51-200	69 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
8	Marti ARC Jura	Indirect evidence	Cornaux, SwitzerlandHQ checked Sep 28, 2026	201-500	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 28, 2026
9	AB Ingénieurs SA	Indirect evidence	Thônex, SwitzerlandHQ checked Sep 28, 2026	51-200	59 contacts →
	Indirect evidence “Fondé en 1979, le bureau Pierre Amsler était spécialisé dans les études géotechniques et les travaux spéciaux dès sa création.” Source: RevenueBase Database · checked Sep 28, 2026
10	Econetta	Indirect evidence	Schlieren, SwitzerlandHQ checked Sep 28, 2026	51-200	55 contacts →
	Indirect evidence “Econetta ist ein führendes Schweizer Umweltberatungsunternehmen.” Source: RevenueBase Database · checked Sep 28, 2026
11	Ecoservices	Indirect evidence	Carouge, SwitzerlandHQ checked Sep 28, 2026	11-50	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 28, 2026
12	DE Cérenville Géotechnique SA	Indirect evidence	Chavannes-près-renens, SwitzerlandHQ checked Sep 28, 2026	51-200	45 contacts →
	Indirect evidence “De Cérenville Géotechnique regroupe sous une même entité un bureau d’ingénieurs-conseils (ICOS) et un service d’essais et mesures (SEM), tous deux spécialisés dans les domaines de…” Source: RevenueBase Database · checked Sep 28, 2026
13	Ecosens AG	Indirect evidence	Wallisellen, SwitzerlandHQ checked Sep 28, 2026	51-200	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 28, 2026
14	Prona Romandie SA	Partial evidence	Yverdon-les-bains, SwitzerlandHQ checked Sep 28, 2026	11-50	37 contacts →
	Partial evidence “Prona Romandie SA provides environmental engineering and health and safety services.” Source: RevenueBase Database · checked Sep 28, 2026
15	Jäckli Geologie AG	Indirect evidence	8048 Zürich, SwitzerlandHQ checked Sep 28, 2026	51-200	36 contacts →
	Indirect evidence “Die Jäckli Geologie AG ist ein eigenständiges Schweizer Beratungsunternehmen mit verschiedenen Standorten in der Nord- und Zentralschweiz.” Source: RevenueBase Database · checked Sep 28, 2026
16	Edms SA	Partial evidence	Petit Lancy 1, SwitzerlandHQ checked Sep 28, 2026	11-50	35 contacts →
	Partial evidence “edms SA est un bureau d'ingénieurs pluridisciplinaire dans le domaine de la construction.” Source: RevenueBase Database · checked Sep 28, 2026
17	Ecotec Environnement SA	Partial evidence	Geneve, SwitzerlandHQ checked Sep 28, 2026	11-50	32 contacts →
	Partial evidence “ECOTEC Environnement SA is a renewables and environment company based out of Rue Francois-Ruchon 3, Geneve, Geneve, Switzerland.” Source: RevenueBase Database · checked Sep 28, 2026
18	Friedlipartner AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “Wir beraten seit 1974 Bauherren und Planer in allen Fragen rund um den Baugrund.” Source: RevenueBase Database · checked Sep 28, 2026
19	B S Ingenieurs SA	Indirect evidence	Genève, SwitzerlandHQ checked Sep 28, 2026	11-50	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 28, 2026
20	Ifec Ingegneria SA	Strong evidence	Rivera-monteceneri, SwitzerlandHQ checked Sep 28, 2026	51-200	25 contacts →
	Strong evidence “IFEC ingegneria SA is a consulting company in the field of energy, building physics, acoustics and applied environmental sciences.” Source: RevenueBase Database · checked Sep 28, 2026
21	PEG	Partial evidence	Lancy, SwitzerlandHQ checked Sep 28, 2026	51-200	25 contacts →
	Partial evidence “PEG is an Independent Engineering Consultant specializing in Cement, Environment and Infrastructure projects.” Source: RevenueBase Database · checked Sep 28, 2026
22	Cement Engineering SA Cesa	Indirect evidence	Geneve Carouge, SwitzerlandHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Cement Engineering SA (CESA) Engineering is a professionals business!” Source: RevenueBase Database · checked Sep 28, 2026
23	Planikum AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “planikum gestaltet zukunftsorientierte Lebensräume und Infrastrukturen für Stadt und Land.” Source: RevenueBase Database · checked Sep 28, 2026
24	Sieber Cassina Partner AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “Unsere Dienstleistungen stehen oft im Spannungsfeld von Nutzungs- und Schutzinteressen.” Source: RevenueBase Database · checked Sep 28, 2026
25	ATB SA Ingénieurs-Conseils SIA Suisse.Ing	Partial evidence	Moutier, SwitzerlandHQ checked Sep 28, 2026	51-200	23 contacts →
	Partial evidence “Philosophie: Le bureau d’ingénieurs civils ATB SA est actif dans le domaine de la construction.” Source: RevenueBase Database · checked Sep 28, 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: environmental consulting firms for construction. 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 consulting firms for construction.
Partial evidence: Its own public description names part of environmental consulting firms for construction, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental consulting firms for construction. 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 384 environmental consulting firms for construction based in Switzerland

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Environmental consulting firms for construction based in Switzerland at a glance

As of Sep 28, 2026

47.5%Verified-email coverage

12.6Average contacts per company

1-10Median size (employees)

7.8%Largest-city concentration · Zurich

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

235

11-50

115

51-200

201-500

501-1,000

1,001-5,000

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 384 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 consulting firms for construction, 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 consulting firms for construction”. 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 consulting firms for construction), 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 consulting firms for construction, 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, 2,303 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 28, 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 consulting firms for construction by metro

Environmental consulting firms for construction in Zurich30

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 consulting firms for construction, 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 consulting firms for construction are there based in Switzerland?

RevenueBase identified 384 environmental consulting firms for construction 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 consulting firms for construction?

Zurich leads with 30 headquartered companies, followed by Geneve (13) and Bern (12).

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 2,303 verified decision-maker contacts tracked across these 384 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 28, 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.