Company lists · Data refreshed September 2026

Top 25 Geothermal heating financing companies based in Germany

Name: Geothermal heating financing companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 136 companies tracked

RevenueBase identified 136 geothermal heating financing companies headquartered in Germany as of September 2026 and tracks 958 professional contacts across them, including 437 with verified work emails. Berlin is the largest hub.

This list covers geothermal heating financing companies headquartered in Germany, 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

136Companies

958Contacts tracked

437Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest geothermal heating financing companies based in Germany

Ranked by team size

Top 25 of 136 geothermal heating financing companies based in Germany, 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Energieversum EIN Unternehmen DER Enbw Gruppe	Indirect evidence	Steinhagen, GermanyHQ checked Sep 19, 2026	201-500	162 contacts →
	Indirect evidence “Mit Premium-Photovoltaikanlagen und Wärmepumpen im Komplettpaket erleichtern wir seit 2010 Privat- und Gewerbekunden bundesweit den Umstieg auf eine unabhängige, nachhaltige…” Source: RevenueBase Database · checked Sep 19, 2026
2	ENTER	Indirect evidence	Berlin, GermanyHQ checked Sep 19, 2026	51-200	136 contacts →
	Indirect evidence “Enter ist ein bundesweit tätiger Anbieter von Wärmepumpen, Solaranlagen (Photovoltaik) mit Stromspeicher, Wallboxen und Energiemanagement-Systemen für Eigenheimbesitzer in…” Source: RevenueBase Database · checked Sep 19, 2026
3	Danpower-Gruppe	Indirect evidence	Potsdam, GermanyHQ checked Sep 19, 2026	201-500	67 contacts →
	Indirect evidence “Die Danpower-Gruppe ist ein mittelständisch strukturiertes Wärmeversorgungs- und Contractingunternehmen.” Source: RevenueBase Database · checked Sep 19, 2026
4	Baugrund SÜD Gesellschaft FÜR Geothermie MBH	Partial evidence	Bad Wurzach, GermanyHQ checked Sep 19, 2026	51-200	50 contacts →
	Partial evidence “BauGrund Süd Gesellschaft für Geothermie mbH is an utilities company based out of MAYBACHSTRASSE 5, Bad Wurzach, Germany.” Source: RevenueBase Database · checked Sep 19, 2026
5	Bullfinch	Indirect evidence	Berlin, GermanyHQ checked Sep 19, 2026	11-50	37 contacts →
	Indirect evidence “With over €200m invested volume and over financed renewable energy assets in the residential energy sector in just 3 years, Bullfinch is an integral driver of the European energy…” Source: RevenueBase Database · checked Sep 19, 2026
6	Daldrup & Söhne AG	Indirect evidence	Ascheberg, GermanyHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “Die Daldrup & Söhne AG ist Spezialist für Bohrtechnik und die Erschließung geologischer Ressourcen in Deutschland mit Sitz in Ascheberg, Nordrhein-Westfalen.” Source: RevenueBase Database · checked Sep 19, 2026
7	Deutsche Erdwärme	Indirect evidence	Karlsruhe, GermanyHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “Deutsche ErdWärme entwickelt, baut, finanziert und betreibt Erdwärmeanlagen zur Dekarbonisierung von Wärmenetzen.” Source: RevenueBase Database · checked Sep 19, 2026
8	Geoenergie Konzept Gmbh	Partial evidence	Freiberg, GermanyHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “eine Gesellschaft der ENGIE-Gruppe, ist ein führendes Unternehmen für Wärme- und Kältelösungen im Bereich der Oberflächennahen Geothermie.” Source: RevenueBase Database · checked Sep 19, 2026
9	Neotherm Gmbh SHK Wärmepumpe	Indirect evidence	Dormagen, GermanyHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Dein lokaler Partner für moderne Energielösungen - Wärmepumpen, PV und alles was dazugehört neotherm ist ein schnell wachsendes Unternehmen im Bereich der erneuerbaren Energien…” Source: RevenueBase Database · checked Sep 19, 2026
10	Matari Gmbh	Indirect evidence	Ahrensburg, GermanyHQ checked Sep 19, 2026	51-200	10 contacts →
	Indirect evidence “Energielösungen und Heizsysteme von Matari: Für Ihre Zukunft Unsere Mission ist es, die Häuser und Hallen in unserer Region mit grüner, günstiger Energie und Wärme zu versorgen…” Source: RevenueBase Database · checked Sep 19, 2026
11	Green Planet Solutions Gmbh & Co. KG	Indirect evidence	Hamburg, GermanyHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Green Planet Solutions unterstützt die persönliche und die gemeinschaftliche Energiewende mit dezentralen Lösungen.” Source: RevenueBase Database · checked Sep 19, 2026
12	Erdwärme Grünwald Gmbh	Indirect evidence	Grünwald, GermanyHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
13	Geothermie Unterhaching	Indirect evidence	Unterhaching, GermanyHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Unterhachings sichere und umweltfreundliche Wärmeversorgung für Generationen.” Source: RevenueBase Database · checked Sep 19, 2026
14	Neowells	Indirect evidence	Berlin, GermanyHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “neowells is a German, independent and innovative engineering company with the vision of actively supporting, professionalizing, industrializing and thus accelerating the heat and…” Source: RevenueBase Database · checked Sep 19, 2026
15	Alteon Gmbh	Indirect evidence	Munich, GermanyHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “Wir machen die Energiewende smart!” Source: RevenueBase Database · checked Sep 19, 2026
16	Enpal Dragon	Indirect evidence	Berlin, GermanyHQ checked Sep 19, 2026	51-200	6 contacts →
	Indirect evidence “Saubere Energie und Wärme für alle - das ist unser Traum bei Enpal.” Source: RevenueBase Database · checked Sep 19, 2026
17	Geowell Erdwärme Gmbh & Co.Kg	Indirect evidence	Marl, GermanyHQ checked Sep 19, 2026	51-200	6 contacts →
	Indirect evidence “Geowell Erdwärme GmbH & Co.KG is a construction company based out of 5 Neckarstraße, Marl, Germany.” Source: RevenueBase Database · checked Sep 19, 2026
18	Heizfix Gmbh Wärmepumpen	Indirect evidence	Pulheim, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Heizfix ist ein schnell wachsendes Unternehmen im Bereich der erneuerbaren Energien mit einem klaren Fokus auf die Wärmewende.” Source: RevenueBase Database · checked Sep 19, 2026
19	Vaestro	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “vaestro erleichtert den Umstieg auf klimafreundliches Heizen in Mehrfamilienhäusern.” Source: RevenueBase Database · checked Sep 19, 2026
20	Energie-Wende-Garching Gmbh & Co. KG	Indirect evidence	Garching B. München, GermanyHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Energie-Wende-Garching GmbH & Co.” Source: RevenueBase Database · checked Sep 19, 2026
21	AD Fontes Solartechnik Kiel	Indirect evidence	Kiel, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “ad fontes sind Pioniere und Experten für Sonnenenergie in Norddeutschland.” Source: RevenueBase Database · checked Sep 19, 2026
22	Hydrotherm Consult Gmbh	Indirect evidence	Walldorf, GermanyHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Wir bieten unseren Kunden genau das, was sie brauchen – zukunftsorientierte und wirtschaftliche Lösung nach dem neuesten Stand von Wissenschaft und Technik.” Source: RevenueBase Database · checked Sep 19, 2026
23	Geocollect Gmbh - Erdwärme	Indirect evidence	Chemnitz, GermanyHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Die GeoCollect GmbH ist ein Hersteller von Erdwärmekollektoren mit Sitz in Chemnitz.” Source: RevenueBase Database · checked Sep 19, 2026
24	Schönknecht & Busch	Indirect evidence	Göttingen, GermanyHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Bei Schönknecht & Busch verbinden wir modernste Wärmepumpen-Technologie mit erstklassigem Design für das ultimative Wärmeerlebnis.” Source: RevenueBase Database · checked Sep 19, 2026
25	Metternich Haustechnik	Indirect evidence	Windeck, GermanyHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Metternich Haustechnik is a renewables & environment company based out of Germany.” Source: RevenueBase Database · checked Sep 19, 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: geothermal heating financing 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 geothermal heating financing companies.
Partial evidence: Its own public description names part of geothermal heating financing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geothermal heating financing 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 136 geothermal heating financing companies based in Germany

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 437 reachable decision-makers.

Free signup · no credit card

View the full list →

Geothermal heating financing companies based in Germany at a glance

As of Sep 19, 2026

45.6%Verified-email coverage

7.0Average contacts per company

1-10Median size (employees)

8.1%Largest-city concentration · Berlin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 136 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 Germany 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 Germany 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, 437 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 Germany?

RevenueBase identified 136 geothermal heating financing companies headquartered in Germany 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?

Energieversum EIN Unternehmen DER Enbw Gruppe, headquartered in Steinhagen, tops this list with the largest team on record.

Which city has the most geothermal heating financing companies?

Berlin leads with 11 headquartered companies, followed by Munich (3) and Chemnitz (2).

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 437 verified decision-maker contacts tracked across these 136 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.

Ready to reach these companies? Verified emails and direct dials for all 136 geothermal heating financing companies based in Germany. Start with a free account, no credit card.

Download this list →

Related lists

Geothermal heating financing companies by geography

Browse the directory

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.