Company lists · Data verified August 2026

Top 25 Clean energy consultancy companies based in Switzerland

Name: Clean energy consultancy companies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 492 companies tracked

There are 492 clean energy consultancy companies headquartered in Switzerland (RevenueBase, August 2026). RevenueBase tracks 3,512 professional contacts across them, including 1,545 with verified work emails and 116 with mobile numbers. Zurich is the largest hub.

This list covers clean energy consultancy companies 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.

492Companies

3,512Contacts tracked

1,545Verified emails

116Mobile numbers

Unlock all 492 companies Free account · no credit card · 2 minutes

The 25 largest clean energy consultancy companies based in Switzerland

Ranked by team size

Top 25 of 492 clean energy consultancy companies 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	Drees & Sommer Switzerland	Zurich	201-500	165	104
3	Fichtner Management Consulting	Dubendorf	51-200	88	4
4	Infras	Bern	51-200	61	35
5	Alpha IC Gmbh	Zurich	51-200	58	40
6	Horizonte-Group AG	Luzern	51-200	57	27
7	Renera AG	Basel	51-200	54	33
8	Planeco Gmbh	Arlesheim	51-200	49	32
9	Weinmann-Energies SA	Neuchatel	51-200	47	36
10	Lemon Consult AG	Basel	11-50	36	25
11	Energie-Agentur DER Wirtschaft Agence DE L Énergie Pour L Économie	Zurich	51-200	31	21
12	Enastra AG	Zurich	11-50	25	17
13	Resiq AG	Visp	11-50	24	10
14	The Meeco Group	Zug	51-200	23	5
15	Ingenieurbüro IEM AG	Bern	11-50	21	9
16	Green Energy Venture AG	Lyssach	51-200	21	1
17	Anthesis Switzerland	Geneva	51-200	20	13
18	Tera Solar	Thonex	11-50	19	11
19	Guggisberg Kurz AG	Ostermundigen	51-200	18	6
20	HMB Partners AG	Zurich	11-50	16	12
21	Energiebüro AG	Zurich	11-50	16	10
22	Adolf Krebs AG	Grund Bei Gstaad	51-200	16	6
23	Swisselectricity.com SA	Geneve	11-50	15	8
24	Gestical SA	Cadempino	11-50	15	7
25	EVU Partners	Aarau	11-50	14	10

Showing 25 of 492 clean energy consultancy companies based in Switzerland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,545 reachable decision-makers.

Free account · no credit card

See all 492 companies

Clean energy consultancy companies based in Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 53 HQs

116Contacts with mobile numbers

10Emails re-verified in last 30 days

Companies by employee count

1-10

360

11-50

51-200

201-500

501-1,000

Clean energy consultancy companies by metro

Metro	Companies
Clean energy consultancy companies in Zurich	53
Clean energy consultancy companies in Lausanne	22
Clean energy consultancy companies in Geneva	18
Clean energy consultancy companies in Basel	13
Clean energy consultancy companies in Geneve	11
Clean energy consultancy companies in Bern	11
Clean energy consultancy companies in Zug	10

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 “clean energy consultancy companies”, 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; 10 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 clean energy consultancy companies are there based in Switzerland?

There are 492 clean energy consultancy companies 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 clean energy consultancy companies?

Zurich leads with 53 headquartered companies, followed by Lausanne (22) and Geneva (18).

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 1,545 verified decision-maker contacts tracked across these 492 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.

Ready to reach these companies? Verified emails and direct dials for all 492 clean energy consultancy companies based in Switzerland. Start with a free account, no credit card.

Get the full list

Related lists

Clean energy consultancy companies by geography

Browse the directory

Browse: Companies home · All Switzerland lists · All Clean energy consultancy companies lists · New lists

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.