Company lists · Data refreshed September 2026

Top 25 Renewable energy power generation companies based in Switzerland

Name: Renewable energy power generation companies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 140 companies tracked

RevenueBase identified 140 renewable energy power generation companies headquartered in Switzerland as of September 2026 and tracks 5,842 professional contacts across them, including 3,223 with verified work emails. Zug is the largest hub.

This list covers renewable energy power generation 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 17, 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 17, 2026 86% judged on-target in blind review

140Companies

5,842Contacts tracked

3,223Verified emails

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The 25 largest renewable energy power generation companies based in Switzerland

Ranked by team size

Top 25 of 140 renewable energy power generation companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy power generation 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Romande Energie	Partial evidence	Morges, SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	746 contacts →
	Partial 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 17, 2026
2	EWZ	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	721 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 17, 2026
3	Varo Energy	Partial evidence	SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	557 contacts →
	Partial evidence “VARO Energy (“VARO”) is a leading European energy transition company operating throughout the complete energy supply chain.” Source: RevenueBase Database · checked Sep 17, 2026
4	AEW Energie AG	Partial evidence	Aarau, SwitzerlandHQ checked Sep 17, 2026	201-500	277 contacts →
	Partial evidence “AEW Energie AG is an independent company of the Canton of Aargau.” Source: RevenueBase Database · checked Sep 17, 2026
5	Galileo	Strong evidence	Zurich, SwitzerlandHQ checked Sep 17, 2026	51-200	98 contacts →
	Strong evidence “At Galileo, we are delivering long-term green power solutions to energy-hungry customers.” Source: RevenueBase Database · checked Sep 17, 2026
6	Smartenergy	Indirect evidence	Wollerau, SwitzerlandHQ checked Sep 17, 2026	201-500	94 contacts →
	Indirect evidence “We are a Swiss-based investment company.” Source: RevenueBase Database · checked Sep 17, 2026
7	Thomaslloyd Group	Partial evidence	Stadtkreis 2, SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	62 contacts →
	Partial 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 17, 2026
8	Elektrizitätswerk Obwalden	Partial evidence	Kerns, SwitzerlandHQ checked Sep 17, 2026	51-200	61 contacts →
	Partial evidence “Als Energiedienstleister und öffentlich-rechtliches Unternehmen versorgt das Elektrizitätswerk Obwalden (EWO) seine Kundinnen und Kunden mit nachhaltigem Strom.” Source: RevenueBase Database · checked Sep 17, 2026
9	Soleol SA	Indirect evidence	Estavayer-le-lac, SwitzerlandHQ checked Sep 17, 2026	51-200	59 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 17, 2026
10	Renera AG	Strong evidence	Basel, SwitzerlandHQ checked Sep 17, 2026	51-200	54 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 17, 2026
11	Planeco Gmbh	Partial evidence	Arlesheim, SwitzerlandHQ checked Sep 17, 2026	51-200	50 contacts →
	Partial evidence “Willkommen bei Planeco GmbH – deiner wegweisenden Partnerin für innovative Energielösungen!” Source: RevenueBase Database · checked Sep 17, 2026
12	Swisspower Renewables	Strong evidence	Zug, SwitzerlandHQ checked Sep 17, 2026	51-200	49 contacts →
	Strong evidence “Swisspower Renewables Group focuses on innovative technologies and sustainable solutions to promote the energy transition.” Source: RevenueBase Database · checked Sep 17, 2026
13	Younergy Solar	Partial evidence	Lausanne, SwitzerlandHQ checked Sep 17, 2026	51-200	45 contacts →
	Partial 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 17, 2026
14	Clevergie AG	Partial evidence	Wyssachen, SwitzerlandHQ checked Sep 17, 2026	51-200	36 contacts →
	Partial evidence “clevergie konzipiert und baut Erneuerbare-Energie-Anlagen rund erneuerbare Energieanlagen rund um Photovoltaik, Wärmetechnik und E-Mobilität.” Source: RevenueBase Database · checked Sep 17, 2026
15	SWG Grenchen	Partial evidence	Grenchen, SwitzerlandHQ checked Sep 17, 2026	51-200	35 contacts →
	Partial evidence “Wir sind engagierte Produzentin und Anbieterin von erneuerbaren Energien, sauberem Wasser sowie zukunftsweisenden Dienstleistungen.” Source: RevenueBase Database · checked Sep 17, 2026
16	Fu-Gen	Strong evidence	Zurich, SwitzerlandHQ checked Sep 17, 2026	11-50	27 contacts →
	Strong evidence “Fu-Gen is an independent power producer that develops, owns and operates renewable energy sources.” Source: RevenueBase Database · checked Sep 17, 2026
17	Aventron	Partial evidence	Münchenstein, SwitzerlandHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “aventron is a well established green power producer based in Switzerland.” Source: RevenueBase Database · checked Sep 17, 2026
18	BE Netz AG	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 17, 2026	51-200	24 contacts →
	Indirect evidence “Das Unternehmen BE Netz AG ist spezialisiert auf Strom und Wärme aus der Sonne.” Source: RevenueBase Database · checked Sep 17, 2026
19	The Meeco Group	Strong evidence	Zug, SwitzerlandHQ checked Sep 17, 2026	51-200	24 contacts →
	Strong evidence “As a leader in clean renewable energy, meeco™ has provided clients with services and solutions for over 423 MW across three continents.” Source: RevenueBase Database · checked Sep 17, 2026
20	Sonnwende	Indirect evidence	Basel, SwitzerlandHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “Sonnwende GmbH \| Photovoltaik und Wärme \| Basel.” Source: RevenueBase Database · checked Sep 17, 2026
21	Solar21 AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Grüezi, wir sind Solar21.” Source: RevenueBase Database · checked Sep 17, 2026
22	Solarify	Indirect evidence	Bern, SwitzerlandHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “With Solarify private customers can buy solar panels on a roof of their choice in Switzerland.” Source: RevenueBase Database · checked Sep 17, 2026
23	Tera Solar	Indirect evidence	Thônex, SwitzerlandHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “tera solar a pour mission d’accompagner particuliers et entreprises dans leurs projets de centrales photovoltaïques et autres infrastructures énergétiques en proposant des…” Source: RevenueBase Database · checked Sep 17, 2026
24	Swiss Solar City AG	Indirect evidence	Basel, SwitzerlandHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Wir bauen und finanzieren Ihr Solarkraftwerk!” Source: RevenueBase Database · checked Sep 17, 2026
25	Convoltas AG	Partial evidence	Immensee, SwitzerlandHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial evidence “Die Energiespezialisten der convoltas AG sind auf die Entwicklung, den Bau und den Unterhalt von Photovoltaik-Grossanlagen spezialisiert.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable energy power generation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names renewable energy power generation companies.
Partial evidence: Its own public description names part of renewable energy power generation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy power generation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 140 renewable energy power generation companies based in Switzerland

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Renewable energy power generation companies based in Switzerland at a glance

As of Sep 17, 2026

55.2%Verified-email coverage

41.7Average contacts per company

1-10Median size (employees)

8.6%Largest-city concentration · Zug

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 140 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 energy power generation 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 energy power generation 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 energy power generation 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 energy power generation 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, 3,223 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 17, 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 energy power generation 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 energy power generation companies are there based in Switzerland?

RevenueBase identified 140 renewable energy power generation 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 energy power generation companies?

Zug leads with 12 headquartered companies, followed by Zurich (10) and Basel (7).

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 3,223 verified decision-maker contacts tracked across these 140 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 17, 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.