Company lists · Data refreshed September 2026

Top 25 Solar heat storage companies based in Switzerland

Name: Solar heat storage companies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 195 companies tracked

RevenueBase identified 195 solar heat storage companies headquartered in Switzerland as of September 2026 and tracks 1,135 professional contacts across them, including 419 with verified work emails. Zurich is the largest hub.

This list covers solar heat storage 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 18, 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 18, 2026 86% judged on-target in blind review

195Companies

1,135Contacts tracked

419Verified emails

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The 25 largest solar heat storage companies based in Switzerland

Ranked by team size

Top 25 of 195 solar heat storage companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to solar heat storage 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	Megasol Energie AG	Partial evidence	Deitingen, SwitzerlandHQ checked Sep 18, 2026	201-500	85 contacts →
	Partial 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 18, 2026
2	Soltop Energie AG	Indirect evidence	Elgg, SwitzerlandHQ checked Sep 18, 2026	51-200	84 contacts →
	Indirect 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 18, 2026
3	TVP Solar SA	Strong evidence	Satigny, SwitzerlandHQ checked Sep 18, 2026	51-200	75 contacts →
	Strong evidence “TVP Solar is a Swiss company providing carbon-free solutions to one of the world’s most pressing energy challenges: decarbonization of large-scale heat consumption.” Source: RevenueBase Database · checked Sep 18, 2026
4	Heim AG Heizsysteme	Indirect evidence	Aadorf, SwitzerlandHQ checked Sep 18, 2026	51-200	66 contacts →
	Indirect evidence “Seit 1989 begeistern wir unsere Kunden mit massgeschneiderten Lösungen und unvergleichlichen Dienstleistungen im Bereich der erneuerbaren Energien.” Source: RevenueBase Database · checked Sep 18, 2026
5	Planeco Gmbh	Indirect evidence	Arlesheim, SwitzerlandHQ checked Sep 18, 2026	51-200	50 contacts →
	Indirect evidence “Willkommen bei Planeco GmbH – deiner wegweisenden Partnerin für innovative Energielösungen!” Source: RevenueBase Database · checked Sep 18, 2026
6	Suntechnics Fabrisolar AG	Indirect evidence	Effretikon, SwitzerlandHQ checked Sep 18, 2026	51-200	24 contacts →
	Indirect evidence “Seit über 40 Jahren dreht sich bei SunTechnics Fabrisolar alles um das Thema erneuerbare Energien.” Source: RevenueBase Database · checked Sep 18, 2026
7	Solstis Energy AG	Indirect evidence	Solothurn, SwitzerlandHQ checked Sep 18, 2026	51-200	23 contacts →
	Indirect evidence “Mit ganzheitlichen Solarlösungen begleiten wir unsere Kundinnen und Kunden auf dem Weg zur nachhaltigen Energieversorgung und -nutzung.” Source: RevenueBase Database · checked Sep 18, 2026
8	Electro-Sol SA	Indirect evidence	Cossonay, SwitzerlandHQ checked Sep 18, 2026	11-50	23 contacts →
	Indirect evidence “Electro-Sol.” Source: RevenueBase Database · checked Sep 18, 2026
9	Sonnwende	Indirect evidence	Basel, SwitzerlandHQ checked Sep 18, 2026	11-50	22 contacts →
	Indirect evidence “Sonnwende GmbH \| Photovoltaik und Wärme \| Basel.” Source: RevenueBase Database · checked Sep 18, 2026
10	Jenni Energietechnik AG	Indirect evidence	Oberburg, SwitzerlandHQ checked Sep 18, 2026	51-200	19 contacts →
	Indirect evidence “Die Speicherlösung für Ihr Projekt Jenni Energietechnik ist Ihr Partner für Energiespeicher: Ob Industrieanlage, Fernwärmeverbund oder Einfamilienhaus – mit unseren Wärme- und…” Source: RevenueBase Database · checked Sep 18, 2026
11	Guggisberg Kurz AG	Indirect evidence	Ostermundigen, SwitzerlandHQ checked Sep 18, 2026	51-200	18 contacts →
	Indirect evidence “Mit über 90 erfahrene Mitarbeitenden ist die Guggisberg Kurz AG in der Lage sowohl grosse Objekte auszuführen, als auch sehr flexibel zu agieren.” Source: RevenueBase Database · checked Sep 18, 2026
12	Cowa Thermal Solutions AG	Indirect evidence	Lucerne, SwitzerlandHQ checked Sep 18, 2026	1-10	16 contacts →
	Indirect evidence “Bei uns trifft Innovation auf Nachhaltigkeit.” Source: RevenueBase Database · checked Sep 18, 2026
13	Hélios Energies SA	Indirect evidence	Grand-lancy, SwitzerlandHQ checked Sep 18, 2026	11-50	14 contacts →
	Indirect evidence “Vers un monde à l'énergie plus propre!” Source: RevenueBase Database · checked Sep 18, 2026
14	Green-Y Energy AG	Partial evidence	Hasle, SwitzerlandHQ checked Sep 18, 2026	1-10	12 contacts →
	Partial evidence “Green-Y revolutionizes the energy sector: The combination of an electricity storage together with a heating and cooling unit in one decentralized device makes the integration of…” Source: RevenueBase Database · checked Sep 18, 2026
15	Tresolar AG	Indirect evidence	Baar, SwitzerlandHQ checked Sep 18, 2026	11-50	10 contacts →
	Indirect evidence “Das Team-Tresolar ist Ihr technischer und ästhetischer Lösungsfinder im Bereich Solarenergie.” Source: RevenueBase Database · checked Sep 18, 2026
16	Neukom Marzolo AG	Indirect evidence	Rafz, SwitzerlandHQ checked Sep 18, 2026	11-50	10 contacts →
	Indirect evidence “Die Neukom Marzolo AG mit Sitz in Rafz und Uster ist Ihr kompetenter Partner für innovative, ökonomische und ökologische Lösungen in der Gebäudetechnik.” Source: RevenueBase Database · checked Sep 18, 2026
17	Stichsolar	Indirect evidence	Kleinlützel, SwitzerlandHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence “Stichsolar – Ihr Partner für Photovoltaik, Batteriespeicher und intelligente Energielösungen in der Nordwestschweiz Im Winter 2007 wurde unser Firmengebäude durch einen Brand…” Source: RevenueBase Database · checked Sep 18, 2026
18	Faivre Energie SA	Indirect evidence	Delémont, SwitzerlandHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
19	Megawatt Solar AG	Indirect evidence	Baar, SwitzerlandHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence “Ihr kompetenter Partner für PV-Anlagen.” Source: RevenueBase Database · checked Sep 18, 2026
20	LA Maison DES Énergies Suisse	Indirect evidence	Morges, SwitzerlandHQ checked Sep 18, 2026	11-50	9 contacts →
	Indirect evidence “La Maison des Énergies, Société Anonyme Suisse, filiale du groupe Européen leader en énergies renouvelables, met toute son expérience et son savoir-faire au service du marché…” Source: RevenueBase Database · checked Sep 18, 2026
21	Gowatt	Indirect evidence	Vuiteboeuf, SwitzerlandHQ checked Sep 18, 2026	1-10	9 contacts →
	Indirect evidence “Nous offrons une gamme complète de produits et services pour répondre à vos besoins en matière d'énergie solaire et d'efficacité énergétique.” Source: RevenueBase Database · checked Sep 18, 2026
22	Mcr-E Sàrl	Indirect evidence	Grandson, SwitzerlandHQ checked Sep 18, 2026	11-50	8 contacts →
	Indirect evidence “Depuis 2015, MCR-e a mis en oeuvre plus de installations solaires photovoltaïques dans toute la Suisse Romande.” Source: RevenueBase Database · checked Sep 18, 2026
23	Soltastic AG	Indirect evidence	Bülach, SwitzerlandHQ checked Sep 18, 2026	11-50	8 contacts →
	Indirect evidence “Soltastic AG – Ihre Sonne.” Source: RevenueBase Database · checked Sep 18, 2026
24	Solary Energy Sàrl	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 18, 2026	11-50	7 contacts →
	Indirect evidence “Illuminez votre vie avec Solary Energy Solary Energy est née de l’alliance entre deux associés unis par une vision commune : rendre l’énergie propre accessible, performante et au…” Source: RevenueBase Database · checked Sep 18, 2026
25	IELLO	Indirect evidence	Orsières, SwitzerlandHQ checked Sep 18, 2026	11-50	7 contacts →
	Indirect evidence “Mon partenaire photovoltaïque valaisan” Source: RevenueBase Database · checked Sep 18, 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: solar heat storage 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 solar heat storage companies.
Partial evidence: Its own public description names part of solar heat storage companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar heat storage 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 195 solar heat storage companies based in Switzerland

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Solar heat storage companies based in Switzerland at a glance

As of Sep 18, 2026

36.9%Verified-email coverage

5.8Average contacts per company

1-10Median size (employees)

3.6%Largest-city concentration · Zurich

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

115

11-50

51-200

201-500

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 195 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 solar heat storage 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 “solar heat storage 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 solar heat storage 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 solar heat storage 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, 419 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 18, 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 solar heat storage 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 solar heat storage companies are there based in Switzerland?

RevenueBase identified 195 solar heat storage 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?

Megasol Energie AG, headquartered in Deitingen, tops this list with the largest team on record.

Which city has the most solar heat storage companies?

Zurich leads with 7 headquartered companies, followed by Baar (4) and Basel (4).

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 419 verified decision-maker contacts tracked across these 195 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 18, 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.