Company lists · Data refreshed November 2026

Top 25 Geothermal heating system companies based in Switzerland

RevenueBase identified 111 company matches for geothermal heating system companies associated with Switzerland as of November 2026 and tracks 794 professional contacts across them, including 200 with verified work emails. Altstatten is the largest hub.

This list covers company matches for geothermal heating system companies associated with Switzerland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
111Companies
794Contacts tracked
200Verified emails
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The 25 largest geothermal heating system companies based in Switzerland

Ranked by team size
Top 25 of 111 company matches for geothermal heating system companies based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDietikon, SwitzerlandHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“Vaillant Schweiz - Innovation trifft Nachhaltigkeit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAadorf, SwitzerlandHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Seit 1989 begeistern wir unsere Kunden mit massgeschneiderten Lösungen und unvergleichlichen Dienstleistungen im Bereich der erneuerbaren Energien.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAarburg, SwitzerlandHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“DOMOTEC AG ist seit 1976 als innovatives Unternehmen im Bereich «Haustechnik» tätig.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSempach-station, SwitzerlandHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Die Zukunft des Heizens beginnt hier.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchOberburg, SwitzerlandHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Die Speicherlösung für Ihr Projekt Jenni Energietechnik ist Ihr Partner für Energiespeicher: Ob Industrieanlage, Fernwärmeverbund oder Einfamilienhaus – mit unseren Wärme- und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchZofingen, SwitzerlandHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“Unser Service für Dich: Planung und Ausführung von Heizungs- und Industriekälteanlagen Heizung und Fernwärme Jetzt online Preise vergleichen und Offerte erhalten…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchZurich, SwitzerlandHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Geo-Energie Suisse AG is Switzerland’s center of excellence for deep geothermal energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAdelboden, SwitzerlandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Erneuerbare Energie, Heizung, Sanitärtechnik, Badsanierung, Dach- und Kaminbau, Zimmeröfen, Rohr- und Fernwärmeleitungsbau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEcublens, SwitzerlandHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Enerdrape operates the world's first prefabricated geothermal panel technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDelémont, SwitzerlandHQ recorded Nov 6, 202611-509 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchEbnat-kappel, SwitzerlandHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Ursprünglich als MAN Heiztechnik GmbH bekannt geworden, ist das Unternehmen heute unabhängiger Hersteller von hochwertigen Heizsystemen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchChur, SwitzerlandHQ recorded Nov 6, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSteckborn District, SwitzerlandHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Für welches Heizsystem Sie sich auch entscheiden: Wärmepumpen mit oder ohne Erdsonden, oder Biomasse-Heizkessel.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchReinach, SwitzerlandHQ recorded Nov 6, 202611-506 contacts →

Exact match

“FWT Wärmetechnik is a retail company based out of Christoph Merian-Ring 23, Reinach, Switzerland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBedano, SwitzerlandHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Dal 1961.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSt. Gallen, SwitzerlandHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Heizungen Neubauten Wärmepumpen Wärmepumpenanlagen Erdsonden Erdwärmesonden Sole/Wasser Luft/WasserÖlheizungen Gasheizungen Holzheizungen Pelletsheizungen Solaranlagen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPetit Lancy, SwitzerlandHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“Fondé en 1970, Bosson-Pillet SA est une des entreprise leader du marché genevois du chauffage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLutry, SwitzerlandHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Au quotidien, on est là pour vous.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchZug, SwitzerlandHQ recorded Nov 6, 20261-104 contacts →

Exact match

“We are a leading European Renewable, Low Carbon Geothermal Energy company delivering delivering Energy From Rocks™.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLucerne, SwitzerlandHQ recorded Nov 6, 20261-104 contacts →

Exact match

“CLEAG's approach is a robust, market-aligned response to the global drive for sustainable base load energy solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchUetendorf, SwitzerlandHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Sie wollen sich von einer herkömmlichen Heizung verabschieden oder bauen neu und suchen das aktuell beste Heizungssystem auf Basis erneuerbarer Energie?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAarau, SwitzerlandHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Wir, von meineheizung.ch, helfen Ihnen einfach und bequem, auf moderne, energieeffiziente Heizungssysteme umzusteigen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBützberg, SwitzerlandHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Einfamilien- oder Mehrfamilienhäuser, Industrieanlagen, Neu- oder Umbauten, Wasserversorgungsleitungen, Wärmeerzeugung mit erneuerbaren Energien wie Wärmepumpen, Holz und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchGland, SwitzerlandHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Swiss Green Solar SA est une société spécialisée dans les installations de chauffages, solaires thermiques et photovoltaïques.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchWürenlos, SwitzerlandHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 111 geothermal heating system companies based in Switzerland

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Geothermal heating system companies based in Switzerland at a glance

As of Nov 6, 2026
25.2%Verified-email coverage
7.2Average contacts per company
1-10Median size (employees)
1.8%Largest-city concentration · Altstatten
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
34
51-200
9
201-500
1
501-1,000
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 111 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Switzerland whose business descriptions match “geothermal heating system companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 200 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geothermal heating system companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal heating system companies are there based in Switzerland?

RevenueBase identified 111 company matches for geothermal heating system companies associated with Switzerland as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Vaillant Schweiz tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal heating system companies?

Altstatten leads with 2 company records, followed by Arni (2) and Basel (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 200 professional contacts with verified work emails tracked across these 111 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.