Company lists · Data refreshed September 2026

Top 25 Industrial environmental consulting firms based in Switzerland

Name: Industrial environmental consulting firms based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 298 companies tracked

RevenueBase identified 298 industrial environmental consulting firms headquartered in Switzerland as of September 2026 and tracks 4,241 professional contacts across them, including 2,051 with verified work emails. Zurich is the largest hub.

This list covers industrial environmental consulting 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 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

298Companies

4,241Contacts tracked

2,051Verified emails

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The 25 largest industrial environmental consulting firms based in Switzerland

Ranked by team size

Top 25 of 298 industrial environmental consulting firms 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 industrial environmental consulting firms: 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	EBP Schweiz	Partial evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	201-500	374 contacts →
	Partial evidence “As an international consulting and engineering company, we stand out by our combined excellence to deliver forward-thinking solutions for our clients' most complex challenges.” 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	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
5	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
6	Intep Integrale Planung Gmbh	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	51-200	65 contacts →
	Indirect evidence “Intep ist eine interdisziplinäre Beratungs- und Forschungsunternehmung für Umwelt, Wirtschaft und Gesellschaft.” Source: RevenueBase Database · checked Sep 28, 2026
7	Techfirm Industrial Services	Strong evidence	Geneva, SwitzerlandHQ checked Sep 28, 2026	201-500	57 contacts →
	Strong evidence “Since 1998, Techfirm Industrial Services is an independent Swiss engineering consulting company.” Source: RevenueBase Database · checked Sep 28, 2026
8	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
9	Biol Conseils	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 28, 2026	11-50	54 contacts →
	Indirect evidence “Fondé en 1985, biol conseils regroupe des ingénieurs de formations complémentaires dans les domaines de l’environnement et de l’aide à la décision.” Source: RevenueBase Database · checked Sep 28, 2026
10	Weinmann-Energies SA	Indirect evidence	Echallens, SwitzerlandHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect evidence “Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.” 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	Sbis AG	Strong evidence	Baden, SwitzerlandHQ checked Sep 28, 2026	51-200	41 contacts →
	Strong evidence “The purpose of the company is independent consulting and planning as well as expert activities in the field of safety, in particular occupational safety, environmental protection…” 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	Added Value Engineering	Indirect evidence	Martigny, SwitzerlandHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Revolutionize your industry with our sustainable and innovative solutions for chemistry, pharma, food, and microtechnology.” 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	Ryser Ingenieure AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “Wir sind eine eigenständige Ingenieurunternehmung für Planung, Beratung und Realisierung mit Schwergewicht im Siedlungswasserbau.” Source: RevenueBase Database · checked Sep 28, 2026
19	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
20	Tecnoservice Engineering SA	Partial evidence	Fribourg, SwitzerlandHQ checked Sep 28, 2026	51-200	26 contacts →
	Partial evidence “TECNOSERVICE ENGINEERING SA est un bureau d’études et d’ingénieurs conseils pour les installations techniques et études énergétiques liées au bâtiment et à l’industrie.” Source: RevenueBase Database · checked Sep 28, 2026
21	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
22	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
23	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
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	Bachema AG	Indirect evidence	Schlieren, SwitzerlandHQ checked Sep 28, 2026	51-200	22 contacts →
	Indirect evidence “Wir bieten schnelle, verlässliche und unabhängige Umweltanalytik auf hohem technisch-wissenschaftlichem Niveau an, damit Sie fundierte Entscheidungen treffen und ihre Kunden…” 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: industrial environmental consulting 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 industrial environmental consulting firms.
Partial evidence: Its own public description names part of industrial environmental consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial environmental consulting 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 298 industrial environmental consulting firms based in Switzerland

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Industrial environmental consulting firms based in Switzerland at a glance

As of Sep 28, 2026

48.4%Verified-email coverage

14.2Average contacts per company

1-10Median size (employees)

9.1%Largest-city concentration · Zurich

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

185

11-50

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 298 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 industrial environmental consulting 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 “industrial environmental consulting 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 industrial environmental consulting 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 industrial environmental consulting 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, 2,051 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.

Industrial environmental consulting firms by metro

Industrial environmental consulting firms in Zurich27

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 industrial environmental consulting 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 industrial environmental consulting firms are there based in Switzerland?

RevenueBase identified 298 industrial environmental consulting 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 industrial environmental consulting firms?

Zurich leads with 27 headquartered companies, followed by Bern (10) and Lausanne (10).

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 2,051 verified decision-maker contacts tracked across these 298 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.