Company lists · Data refreshed September 2026

Top 25 Clean energy developers based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 240 companies tracked

RevenueBase identified 240 clean energy developers headquartered in Switzerland as of September 2026 and tracks 5,965 professional contacts across them, including 2,986 with verified work emails. Zurich is the largest hub.

This list covers clean energy developers 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 16, 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 16, 2026 86% judged on-target in blind review

240Companies

5,965Contacts tracked

2,986Verified emails

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The 25 largest clean energy developers based in Switzerland

Ranked by team size

Top 25 of 240 clean energy developers based in Switzerland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy developers: 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	BKW AG	Partial evidence	Bern, SwitzerlandHQ checked Sep 16, 2026	10001+	1,148 contacts →
	Partial evidence “The BKW Group is an internationally active energy and infrastructure company based in Berne.” Source: RevenueBase Database · checked Sep 16, 2026
2	EWZ	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 16, 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 16, 2026
3	Groupe Gruyère Energie	Partial evidence	Bulle, SwitzerlandHQ checked Sep 16, 2026	201-500	157 contacts →
	Partial evidence “Active depuis plus de 130 ans et principal promoteur de la transition énergétique dans la région, Gruyère Energie SA est une entreprise active dans l’approvisionnement et la…” Source: RevenueBase Database · checked Sep 16, 2026
4	Galileo	Partial evidence	Zurich, SwitzerlandHQ checked Sep 16, 2026	51-200	98 contacts →
	Partial evidence “At Galileo, we are delivering long-term green power solutions to energy-hungry customers.” Source: RevenueBase Database · checked Sep 16, 2026
5	Smartenergy	Indirect evidence	Wollerau, SwitzerlandHQ checked Sep 16, 2026	201-500	94 contacts →
	Indirect evidence “We are a Swiss-based investment company.” Source: RevenueBase Database · checked Sep 16, 2026
6	Megasol Energie AG	Indirect evidence	Deitingen, SwitzerlandHQ checked Sep 16, 2026	201-500	85 contacts →
	Indirect evidence “Built with cutting-edge technology, economical to operate and easy to install: Solar systems from Megasol combine performance, reliability and appearance - from standardized…” Source: RevenueBase Database · checked Sep 16, 2026
7	Soltop Energie AG	Partial evidence	Elgg, SwitzerlandHQ checked Sep 16, 2026	51-200	84 contacts →
	Partial evidence “Erneuerbare Energien aus Sonne, Erde, Luft und Wasser nutzbar machen: Diese Kernaufgabe erfüllt die Soltop Energie AG bereits seit über 40 Jahren konsequent und erfolgreich.” Source: RevenueBase Database · checked Sep 16, 2026
8	Thomaslloyd Group	Partial evidence	Stadtkreis 2, SwitzerlandHQ checked Sep 16, 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 16, 2026
9	Soleol SA	Indirect evidence	Estavayer-le-lac, SwitzerlandHQ checked Sep 16, 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 16, 2026
10	Planeco Gmbh	Partial evidence	Arlesheim, SwitzerlandHQ checked Sep 16, 2026	51-200	50 contacts →
	Partial evidence “Willkommen bei Planeco GmbH – deiner wegweisenden Partnerin für innovative Energielösungen!” Source: RevenueBase Database · checked Sep 16, 2026
11	Younergy Solar	Partial evidence	Lausanne, SwitzerlandHQ checked Sep 16, 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 16, 2026
12	Clevergie AG	Partial evidence	Wyssachen, SwitzerlandHQ checked Sep 16, 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 16, 2026
13	Renera Energy	Strong evidence	Basel, SwitzerlandHQ checked Sep 16, 2026	51-200	32 contacts →
	Strong evidence “We are an independent Renewable Energy consultancy, project developer, trader and operator with offices in Switzerland, Italy and Germany.” Source: RevenueBase Database · checked Sep 16, 2026
14	Ampere Dynamic	Partial evidence	Zurich, SwitzerlandHQ checked Sep 16, 2026	11-50	29 contacts →
	Partial evidence “Als Experte für nachhaltige und schlüsselfertige Energielösungen im Industrie & Gewerbesektor denken wir Energie ganzheitlich.” Source: RevenueBase Database · checked Sep 16, 2026
15	Fu-Gen	Partial evidence	Zurich, SwitzerlandHQ checked Sep 16, 2026	11-50	27 contacts →
	Partial evidence “Fu-Gen is an independent power producer that develops, owns and operates renewable energy sources.” Source: RevenueBase Database · checked Sep 16, 2026
16	Aventron	Indirect evidence	Münchenstein, SwitzerlandHQ checked Sep 16, 2026	11-50	25 contacts →
	Indirect evidence “aventron is a well established green power producer based in Switzerland.” Source: RevenueBase Database · checked Sep 16, 2026
17	BE Netz AG	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 16, 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 16, 2026
18	Suntechnics Fabrisolar AG	Partial evidence	Effretikon, SwitzerlandHQ checked Sep 16, 2026	51-200	24 contacts →
	Partial evidence “Seit über 40 Jahren dreht sich bei SunTechnics Fabrisolar alles um das Thema erneuerbare Energien.” Source: RevenueBase Database · checked Sep 16, 2026
19	The Meeco Group	Strong evidence	Zug, SwitzerlandHQ checked Sep 16, 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 16, 2026
20	Mitrelli Energy	Indirect evidence	Frauenfeld, SwitzerlandHQ checked Sep 16, 2026	11-50	23 contacts →
	Indirect evidence “Power.” Source: RevenueBase Database · checked Sep 16, 2026
21	Sonnwende	Indirect evidence	Basel, SwitzerlandHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence “Sonnwende GmbH \| Photovoltaik und Wärme \| Basel.” Source: RevenueBase Database · checked Sep 16, 2026
22	Tera Solar	Indirect evidence	Thônex, SwitzerlandHQ checked Sep 16, 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 16, 2026
23	Swiss Solar City AG	Indirect evidence	Basel, SwitzerlandHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Wir bauen und finanzieren Ihr Solarkraftwerk!” Source: RevenueBase Database · checked Sep 16, 2026
24	Solarmotion AG	Partial evidence	St. Gallen, SwitzerlandHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “Ihr Partner rund um die erneuerbaren Energien.” Source: RevenueBase Database · checked Sep 16, 2026
25	Panitek Green Ventures	Strong evidence	Zurich, SwitzerlandHQ checked Sep 16, 2026	11-50	12 contacts →
	Strong evidence “Founded in 2006, Panitek is an Indo-European establishment which strives to solve some of the biggest energy challenges in the emerging countries through clean and innovative…” Source: RevenueBase Database · checked Sep 16, 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: clean energy developers. 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 clean energy developers.
Partial evidence: Its own public description names part of clean energy developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clean energy developers. 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 240 clean energy developers based in Switzerland

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Clean energy developers based in Switzerland at a glance

As of Sep 16, 2026

50.1%Verified-email coverage

24.9Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · Zurich

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

137

11-50

51-200

201-500

1,001-5,000

5,001-10,000

10001+

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 240 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 clean energy developers, 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 “clean energy developers”. 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 clean energy developers), 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 clean energy developers, 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, 2,986 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 16, 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 clean energy developers, 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 clean energy developers are there based in Switzerland?

RevenueBase identified 240 clean energy developers 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?

BKW AG, headquartered in Bern, tops this list with the largest team on record.

Which city has the most clean energy developers?

Zurich leads with 15 headquartered companies, followed by Zug (11) and Basel (8).

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 2,986 verified decision-maker contacts tracked across these 240 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 16, 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.