Company lists · Data refreshed September 2026

Top 17 Geothermal heating financing companies based in Switzerland

RevenueBase identified 46 geothermal heating financing companies headquartered in Switzerland as of September 2026 and tracks 173 professional contacts across them, including 61 with verified work emails. St. Gallen is the largest hub.

This list covers geothermal heating financing 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 19, 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 19, 2026 86% judged on-target in blind review
46Companies
173Contacts tracked
61Verified emails
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The 17 largest geothermal heating financing companies based in Switzerland

Ranked by team size
Top 17 of 46 geothermal heating financing companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to geothermal heating financing 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 evidenceSt. Gallen, SwitzerlandHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

“Erneuerbare Energien mit Investerra finanzieren Wärmepumpe, Solaranlage, Stromspeicher oder E-Ladestation geplant?”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceZurich, SwitzerlandHQ checked Sep 19, 202611-5013 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceBaar, SwitzerlandHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

“We realise and finance building concepts in the field of CO2-neutral technologies with a focus on solar contracting (On-Site Power Purchase Agreement, PPA).”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceEcublens, SwitzerlandHQ checked Sep 19, 202611-509 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceAdelboden, SwitzerlandHQ checked Sep 19, 202651-2009 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceDelémont, SwitzerlandHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceReinach, SwitzerlandHQ checked Sep 19, 202611-507 contacts →

Partial evidence

“Conception, planning and realisation of- Photovoltaic systems - Solar thermal systems for water heating and backup heating- Wood pellet heating systems - Heat pumps”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceZug, SwitzerlandHQ checked Sep 19, 20261-106 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceGeneve, SwitzerlandHQ checked Sep 19, 20261-106 contacts →

Partial evidence

“Netra assists companies in their transition to clean energy solutions, through the design, construction, financing and management of infrastructure.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceRotkreuz, SwitzerlandHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“Sundust AG bietet Finanzierungs- und Betriebslösungen für Energieanlagen für Industrie, Gewerbe und Renditeimmobilien – von der Planung und Finanzierung bis zum Betrieb und…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceLucerne, SwitzerlandHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidencePetit Lancy, SwitzerlandHQ checked Sep 19, 202651-2004 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceUetendorf, SwitzerlandHQ checked Sep 19, 202611-503 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceSt. Margrethen Sg, SwitzerlandHQ checked Sep 19, 20261-102 contacts →

Partial evidence

“Grosshandel und Beratung im Bereich der Geothermie und Bohrtechnik.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceSt Margrethen, SwitzerlandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Die Zukunft in der Erdwärme hat begonnen.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceBusswil Tg, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Hermann Jost AG is a construction company based out of Hauptstrasse 53, Busswil TG, Switzerland.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceRegensdorf, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026

Showing 17 of 46 geothermal heating financing companies based in Switzerland

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Geothermal heating financing companies based in Switzerland at a glance

As of Sep 19, 2026
35.3%Verified-email coverage
3.8Average contacts per company
1-10Median size (employees)
4.3%Largest-city concentration · St. Gallen
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
13
51-200
4

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 46 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 geothermal heating financing 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 “geothermal heating financing 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 geothermal heating financing 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 geothermal heating financing 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, 61 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 19, 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 geothermal heating financing 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 geothermal heating financing companies are there based in Switzerland?

RevenueBase identified 46 geothermal heating financing 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?

Investerra AG, headquartered in St. Gallen, tops this list with the largest team on record.

Which city has the most geothermal heating financing companies?

St. Gallen leads with 2 headquartered companies, followed by Adelboden (1) and Altstatten (1).

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 61 verified decision-maker contacts tracked across these 46 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 19, 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.