Company lists · Data verified August 2026

Top 25 Climate consulting firms based in Switzerland

Name: Climate 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 271 companies tracked

There are 271 climate consulting firms headquartered in Switzerland (RevenueBase, August 2026). RevenueBase tracks 2,825 professional contacts across them, including 1,529 with verified work emails and 142 with mobile numbers. Zurich is the largest hub.

This list covers climate 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.

271Companies

2,825Contacts tracked

1,529Verified emails

142Mobile numbers

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The 25 largest climate consulting firms based in Switzerland

Ranked by team size

Top 25 of 271 climate 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	South Pole	Zurich	501-1,000	802	537
2	Climatepartner	Zurich	501-1,000	374	285
3	Quantis	Lausanne	201-500	332	187
4	Gartenmann Engineering AG	Zurich	51-200	72	43
5	Infras	Bern	51-200	61	35
6	Ecosens AG	Wallisellen	51-200	41	31
7	Lemon Consult AG	Basel	11-50	36	25
8	Waldhauser Hermann AG	Munchenstein	51-200	31	19
9	Enastra AG	Zurich	11-50	25	17
10	Weisskopf Partner Gmbh	Zurich	11-50	25	16
11	Ifec Ingegneria SA	n/a	51-200	24	13
12	Vema S.A. Vema Carbon	Fribourg	11-50	23	2
13	Carbotech AG	n/a	11-50	21	5
14	Green Energy Venture AG	Lyssach	51-200	21	1
15	Anthesis Switzerland	Geneva	51-200	20	13
16	Econcept AG	Zurich	11-50	20	11
17	BHP Brugger And Partners LTD	Zurich	11-50	19	10
18	SB Technique SA	Geneve	11-50	18	10
19	WSP Suisse AG	Luzern	201-500	18	9
20	Adolf Krebs AG	Grund Bei Gstaad	51-200	16	6
21	Blossom ET Partenaires	Geneve	11-50	16	4
22	EVU Partners	Aarau	11-50	14	10
23	Ipso ECO AG	Rothenburg	11-50	12	9
24	Bureau D'études Impact SA	Martigny	11-50	12	7
25	EK Energiekonzepte AG	Zurich	11-50	11	8

Showing 25 of 271 climate consulting firms based in Switzerland

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Climate consulting firms based in Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 44 HQs

142Contacts with mobile numbers

15Emails re-verified in last 30 days

Companies by employee count

1-10

215

11-50

51-200

201-500

501-1,000

Climate consulting firms by metro

Metro	Companies
Climate consulting firms in Zurich	44
Climate consulting firms in Geneva	22
Climate consulting firms in Lausanne	17
Climate consulting firms in Basel	10
Climate consulting firms in Geneve	9
Climate consulting firms in Zug	4
Climate consulting firms in Bern	4

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 “climate 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; 15 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 climate consulting firms are there based in Switzerland?

There are 271 climate consulting firms headquartered in Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

South Pole, headquartered in Zurich, tops this list with the largest team on record.

Which city has the most climate consulting firms?

Zurich leads with 44 headquartered companies, followed by Geneva (22) and Lausanne (17).

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 1,529 verified decision-maker contacts tracked across these 271 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.