Company lists · Data refreshed November 2026

Top 25 Environmental compliance contractors based in Switzerland

RevenueBase identified 75 company matches for environmental compliance contractors associated with Switzerland as of November 2026 and tracks 905 professional contacts across them, including 390 with verified work emails. Geneva is the largest hub.

This list covers company matches for environmental compliance 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
75Companies
905Contacts tracked
390Verified emails
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The 25 largest environmental compliance contractors based in Switzerland

Ranked by team size
Top 25 of 75 company matches for environmental compliance 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 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
2Exact matchMuttenz, SwitzerlandHQ recorded Nov 6, 202651-200111 contacts →

Exact match

“Die komplexen Rahmenbedingungen erfordern eine ganzheitliche Sicht der Probleme, kreative Prozesse und eine entsprechend eingespielte Organisation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchYverdon-les-bains, SwitzerlandHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Prona Romandie SA provides environmental engineering and health and safety services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGeneva, SwitzerlandHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“ECOTEC Environnement SA is a renewables and environment company based out of Rue Francois-Ruchon 3, Geneve, Geneve, Switzerland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBasel, SwitzerlandHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Carbotech Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact 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
9Exact 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
10Exact matchSion, SwitzerlandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Depuis sa création en 1986, le bureau d'études Impact SA a réalisé et coordonné de nombreux dossiers d'impact sur l'environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLocarno, SwitzerlandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Consulenza ambientale | Pianificazione | Ingegneria forestale”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchReinach, SwitzerlandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Die Hintermann & Weber AG ist eine Umweltberatungsfirma und arbeitet für die öffentliche Hand, private Firmen und weitere Institutionen in der ganzen Schweiz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchComano, SwitzerlandHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“A Consulting Company for Scientific Challenges TIBIO offers scientific consulting services in several fields, divided in two departments:"Environment and biotechnology" and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchChavannes, SwitzerlandHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“ECOSCAN SA est situé à Lausanne et est spécialisée dans les études en environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGeneva, SwitzerlandHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Forts de 10 ans d’expérience en Suisse romande, et en France voisine, nous contribuons à la concrétisation de différents projets d’aménagement du territoire et de construction…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBiel, SwitzerlandHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Die Firma toumi ag mit Hauptsitz in Biel-Bienne.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCham, SwitzerlandHQ recorded Nov 6, 202611-508 contacts →

Exact match

“AI-Powered Industrial Compliance”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchEnnetbaden, SwitzerlandHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Baden Consulting is an independent Swiss management consultancy partnership with a focus on Environment, Health and Safety (EHS) Management Consulting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchStadt Luzern, SwitzerlandHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Die Keller + Lorenz AG ist ein in der Zentralschweiz seit 1971 erfolgreich etabliertes, wirtschaftlich unabhängiges Beratungsbüro.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchZurich, SwitzerlandHQ recorded Nov 6, 202611-508 contacts →

Exact match

“FORNAT AG - Forschung für Naturschutz und Naturnutzung Seit über 40 Jahren bietet FORNAT Beratungen zu Fragen des Naturschutzes und der Ökologie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSolothurn, SwitzerlandHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Kaufmann + Bader is a company based out of HAUPTGASSE 48, Solothurn, Switzerland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMeyrin, SwitzerlandHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Atelier Nature et Paysage (ATNP) est un bureau d’études spécialisé dans les conseils, études, projets et réalisations dans les domaines de la nature, du paysage et de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGeneva, SwitzerlandHQ recorded Nov 6, 20261-104 contacts →

Exact match

“3E Ingénieurs Sàrl est un bureau d’ingénieurs actif dans les domaines de l’énergie, l’eau et l’environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBasel, SwitzerlandHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Joppen & Pita AG, Umwelt Sicherheit Gesundheit Aktiengesellschaft mit Sitz in Basel, Gründung am 23.1.2002, SHAB Nr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchRenens, SwitzerlandHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Le conseil en environnement et la mise en œuvre de dispositifs participatifs sont les deux spécialités du Bureau DAC.”

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

Showing 25 of 75 environmental compliance contractors based in Switzerland

See the full list, filter by size, metro and specialty, and access 390 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental compliance contractors based in Switzerland at a glance

As of Nov 6, 2026
43.1%Verified-email coverage
12.1Average contacts per company
1-10Median size (employees)
6.7%Largest-city concentration · Geneva
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
49
11-50
21
51-200
2
501-1,000
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 75 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 “environmental compliance 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 390 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 “environmental compliance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental compliance contractors are there based in Switzerland?

RevenueBase identified 75 company matches for environmental compliance 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?

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

Which city has the most environmental compliance contractors?

Geneva leads with 5 company records, followed by Zurich (4) and Basel (2).

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 390 professional contacts with verified work emails tracked across these 75 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.