Company lists · Data refreshed September 2026

Top 25 Renewable companies based in Switzerland

RevenueBase identified 209 renewable companies headquartered in Switzerland as of September 2026 and tracks 7,086 professional contacts across them, including 3,891 with verified work emails. Zug is the largest hub.

This list covers renewable companies 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 21, 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 21, 2026 86% judged on-target in blind review
209Companies
7,086Contacts tracked
3,891Verified emails
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The 25 largest renewable companies based in Switzerland

Ranked by team size
Top 25 of 209 renewable companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to renewable companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMorges, SwitzerlandHQ checked Sep 21, 20261,001-5,000746 contacts →

Indirect evidence

“As a leading energy company and the largest utility in French-speaking Switzerland, the Romande Energie Group offers a wide range of sustainable solutions such as energy…”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceZurich, SwitzerlandHQ checked Sep 21, 20261,001-5,000721 contacts →

Indirect evidence

“Unsere Erfolgsgeschichte begann mit einer aufsehenerregenden Pioniertat: Im Jahr 1892 floss in der Stadt Zürich erstmals elektrischer Strom.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceSwitzerlandHQ checked Sep 21, 20261,001-5,000557 contacts →

Indirect evidence

“VARO Energy (“VARO”) is a leading European energy transition company operating throughout the complete energy supply chain.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceMünchenstein, SwitzerlandHQ checked Sep 21, 2026501-1,000305 contacts →

Indirect evidence

“Wir bündeln Energie.”

Source: RevenueBase Database · checked Sep 21, 2026
5Strong evidenceLiestal, SwitzerlandHQ checked Sep 21, 2026201-500282 contacts →

Strong evidence

“For decades, we at EBL have been specifically promoting the generation of energy through new renewable energy and actively advocating a more economical use of energy, which is…”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceAarau, SwitzerlandHQ checked Sep 21, 2026201-500277 contacts →

Indirect evidence

“AEW Energie AG is an independent company of the Canton of Aargau.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceLuzern, SwitzerlandHQ checked Sep 21, 2026201-500165 contacts →

Indirect evidence

“ewl ist die Wegbereiterin für eine klimaneutrale Zukunft.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceZurich, SwitzerlandHQ checked Sep 21, 202651-20098 contacts →

Indirect evidence

“At Galileo, we are delivering long-term green power solutions to energy-hungry customers.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceGeneve, SwitzerlandHQ checked Sep 21, 2026n/a96 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceWollerau, SwitzerlandHQ checked Sep 21, 2026201-50094 contacts →

Indirect evidence

“We are a Swiss-based investment company.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceStadtkreis 2, SwitzerlandHQ checked Sep 21, 20261,001-5,00062 contacts →

Indirect evidence

“Founded in 2003, ThomasLloyd is a vertically integrated sustainable energy and technology solutions provider, integrating development, investment, operations, and technology on a…”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceKerns, SwitzerlandHQ checked Sep 21, 202651-20061 contacts →

Indirect evidence

“Als Energiedienstleister und öffentlich-rechtliches Unternehmen versorgt das Elektrizitätswerk Obwalden (EWO) seine Kundinnen und Kunden mit nachhaltigem Strom.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceEstavayer-le-lac, SwitzerlandHQ checked Sep 21, 202651-20059 contacts →

Indirect evidence

“Soleol SA est une entreprise fribourgeoise basée à Estavayer-le-Lac, spécialisée dans les énergies renouvelables et parmi les leaders en Suisse dans la réalisation et…”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceOrbe, SwitzerlandHQ checked Sep 21, 202651-20055 contacts →

Indirect evidence

“VOé regroupe l’expérience et les compétences de sociétés régionales actives depuis des décennies dans le domaine de l’énergie et du multimédia.”

Source: RevenueBase Database · checked Sep 21, 2026
15Strong evidenceBasel, SwitzerlandHQ checked Sep 21, 202651-20054 contacts →

Strong evidence

“Renera AG (formerly Energie Zukunft Schweiz AG) is a leading force on the road to a fully renewable energy world.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceArlesheim, SwitzerlandHQ checked Sep 21, 202651-20050 contacts →

Indirect evidence

“Willkommen bei Planeco GmbH – deiner wegweisenden Partnerin für innovative Energielösungen!”

Source: RevenueBase Database · checked Sep 21, 2026
17Strong evidenceZug, SwitzerlandHQ checked Sep 21, 202651-20049 contacts →

Strong evidence

“Swisspower Renewables Group focuses on innovative technologies and sustainable solutions to promote the energy transition.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceBuchs, SwitzerlandHQ checked Sep 21, 202651-20046 contacts →

Indirect evidence

“Wir versorgen Buchs mit Energie, Wasser und Kommunikation.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceLausanne, SwitzerlandHQ checked Sep 21, 202651-20045 contacts →

Indirect evidence

“At Younergy Solar, we are pioneers in solar energy, offering tailored solutions for a cleaner and sustainable energy future.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceWyssachen, SwitzerlandHQ checked Sep 21, 202651-20036 contacts →

Indirect evidence

“clevergie konzipiert und baut Erneuerbare-Energie-Anlagen rund erneuerbare Energieanlagen rund um Photovoltaik, Wärmetechnik und E-Mobilität.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceGrenchen, SwitzerlandHQ checked Sep 21, 202651-20035 contacts →

Indirect evidence

“Wir sind engagierte Produzentin und Anbieterin von erneuerbaren Energien, sauberem Wasser sowie zukunftsweisenden Dienstleistungen.”

Source: RevenueBase Database · checked Sep 21, 2026
22Strong evidenceSierre, SwitzerlandHQ checked Sep 21, 202611-5035 contacts →

Strong evidence

“SOLEXIS is a Swiss importer and wholesaler of renewable energy system components, particularly solar system components.”

Source: RevenueBase Database · checked Sep 21, 2026
23Strong evidenceLugano, SwitzerlandHQ checked Sep 21, 202611-5028 contacts →

Strong evidence

“Sirius Energy SA is a Swiss company based in Lugano, founded by a team of highly skilled professionals with proven track records and decades of experience in renewable assets…”

Source: RevenueBase Database · checked Sep 21, 2026
24Strong evidenceZurich, SwitzerlandHQ checked Sep 21, 202611-5027 contacts →

Strong evidence

“Fu-Gen is an independent power producer that develops, owns and operates renewable energy sources.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceMünchenstein, SwitzerlandHQ checked Sep 21, 202611-5025 contacts →

Indirect evidence

“aventron is a well established green power producer based in Switzerland.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 209 renewable companies based in Switzerland

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Renewable companies based in Switzerland at a glance

As of Sep 21, 2026
54.9%Verified-email coverage
33.9Average contacts per company
1-10Median size (employees)
6.7%Largest-city concentration · Zug
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
109
11-50
63
51-200
23
201-500
6
501-1,000
2
1,001-5,000
4
5,001-10,000
1
10001+
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 209 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 renewable companies, 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 “renewable companies”. 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 renewable companies), 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 renewable companies, 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, 3,891 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 21, 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.

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 renewable companies, 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 renewable companies are there based in Switzerland?

RevenueBase identified 209 renewable companies 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?

Romande Energie, headquartered in Morges, tops this list with the largest team on record.

Which city has the most renewable companies?

Zug leads with 14 headquartered companies, followed by Zurich (12) 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 3,891 verified decision-maker contacts tracked across these 209 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 21, 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.