Company lists · Data verified August 2026

Top 15 Environmental compliance consulting firms based in Switzerland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 40 companies tracked

There are 40 environmental compliance consulting firms headquartered in Switzerland (RevenueBase, August 2026). RevenueBase tracks 245 professional contacts across them, including 117 with verified work emails and 8 with mobile numbers. Lugano is the largest hub.

This list covers environmental compliance consulting firms headquartered in Switzerland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

40Companies

245Contacts tracked

117Verified emails

8Mobile numbers

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The 15 largest environmental compliance consulting firms based in Switzerland

Ranked by team size

Top 15 of 40 environmental compliance consulting firms based in Switzerland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Ecosens AG	Wallisellen	51-200	41	31
2	Prona Romandie SA	Fribourg	11-50	37	24
3	HSE Conseils SA	Gland	11-50	31	23
4	Carbotech AG	n/a	11-50	21	5
5	Ipso ECO AG	Rothenburg	11-50	12	9
6	Bureau D'études Impact SA	Martigny	11-50	12	7
7	Ecoscan SA	Chavannes	11-50	11	2
8	Dionea SA	Lugano	11-50	11	1
9	Artem Technologie AG	Cham	11-50	9	7
10	Greentexconsulting	Lugano	1-10	2	2
11	3e Ingénieurs Sàrl	Geneve	1-10	2	1
12	Enviso AG	Altdorf	1-10	2	1
13	Umwerken	Egg Bei Zurich	1-10	1	1
14	ETI Environmental Technology LTD	Chur	1-10	1	1
15	1airsup	Meyrin	1-10	1	1

Showing 15 of 40 environmental compliance consulting firms based in Switzerland

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Environmental compliance consulting firms based in Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

LuganoLargest hub · 2 HQs

8Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Environmental compliance consulting firms by metro

Metro	Companies
Environmental compliance consulting firms in Lugano	2
Environmental compliance consulting firms in Zurich	2
Environmental compliance consulting firms in Cudrefin	1
Environmental compliance consulting firms in Altdorf	1
Environmental compliance consulting firms in Bern	1
Environmental compliance consulting firms in Chavannes	1
Environmental compliance consulting firms in Kirchberg	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “environmental compliance consulting firms”, with match quality audited by blind human judging, and headquartered in Switzerland.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many environmental compliance consulting firms are there based in Switzerland?

There are 40 environmental compliance consulting firms headquartered in Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

Ecosens AG, headquartered in Wallisellen, tops this list with the largest team on record.

Which city has the most environmental compliance consulting firms?

Lugano leads with 2 headquartered companies, followed by Zurich (2) and Cudrefin (1).

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 117 verified decision-maker contacts tracked across these 40 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.