Company lists · Data refreshed September 2026

Top 25 Geothermal heating financing companies based in the Netherlands

RevenueBase identified 111 geothermal heating financing companies headquartered in the Netherlands as of September 2026 and tracks 838 professional contacts across them, including 343 with verified work emails. Amsterdam is the largest hub.

This list covers geothermal heating financing companies headquartered in the Netherlands, 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
111Companies
838Contacts tracked
343Verified emails
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The 25 largest geothermal heating financing companies based in the Netherlands

Ranked by team size
Top 25 of 111 geothermal heating financing companies based in the Netherlands, 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 evidenceVoorburg, NetherlandsHQ checked Sep 19, 202651-200149 contacts →

Indirect evidence

“Eteck levert duurzame energie in de vorm van koude en warmte.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidencePurmerend, NetherlandsHQ checked Sep 19, 202651-20060 contacts →

Indirect evidence

“SVP - Samen werken aan klimaat |@Stadsverwarming | SVP is een groeiend integraal warmtebedrijf dat warmte duurzaam produceert, distribueert en levert aan ruim particuliere en…”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceHeerlen, NetherlandsHQ checked Sep 19, 202611-5035 contacts →

Indirect evidence

“De energietransitie is volop aan de gang.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceMiddenmeer, NetherlandsHQ checked Sep 19, 202611-5027 contacts →

Indirect evidence

“Wij zijn Ennatuurlijk Aardwarmte.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceLeiden, NetherlandsHQ checked Sep 19, 202611-5024 contacts →

Partial evidence

“Yeager Energy is an integrated geothermal energy company based in The Netherlands.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceUtrecht, NetherlandsHQ checked Sep 19, 202611-5021 contacts →

Partial evidence

“We believe that sustainable heating and cooling should work for everyone: affordable, reliable, and providing noticeable comfort in everyday life.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceDelft, NetherlandsHQ checked Sep 19, 202611-5019 contacts →

Partial evidence

“Tarnoc’s mission is to accelerate the energy transition to sustainable heating of households.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceElburg, NetherlandsHQ checked Sep 19, 202611-5017 contacts →

Indirect evidence

“Duratherm is een zelfstandig onderdeel van Draaijer Grondboringen Beheer BV.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceVeenendaal, NetherlandsHQ checked Sep 19, 202611-5017 contacts →

Indirect evidence

“Het enige dat je merkt is dat je energierekening lager wordt.' Energy Bridge helpt woningcorporaties, VvE's, kantooreigenaren en zorginstellingen met het overstappen van fossiele…”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceAmsterdam, NetherlandsHQ checked Sep 19, 202611-5014 contacts →

Partial evidence

“Embedded-financing van Prets voor duurzame woningupgrades.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 19, 202611-5011 contacts →

Indirect evidence

“Bij Jord leveren we systemen voor gezonde, fossielvrije warmte en verkoeling as a service.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceBarneveld, NetherlandsHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

“Met onze disciplines helpen we heel Nederland comfortabel wonen én werken.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceAmsterdam, NetherlandsHQ checked Sep 19, 202611-5010 contacts →

Partial evidence

“Transmark Renewables is an independent power producer (IPP) and geothermal exploration and development company within the Transmark Group.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceDordrecht, NetherlandsHQ checked Sep 19, 202611-509 contacts →

Partial evidence

“Dutch company for development, design, build, finance and operate geothermal energy systems to provide sustainable heat for greenhouse areas, industry and existing district or…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceDelft, NetherlandsHQ checked Sep 19, 202611-508 contacts →

Indirect evidence

“Thermeleon envisions climate neutral horticulture.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceBarendrecht, NetherlandsHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

“Bij SMART-NRG willen wij de energietransitie helpen te versnellen.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceZoetermeer, NetherlandsHQ checked Sep 19, 20261-107 contacts →

Indirect evidence

“De energietransitie moet en kán sneller, en daar helpt ClimaFlux een handje bij.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceZwanenburg, NetherlandsHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Four Energy voorziet gebouwen in Nederland van warmte en energie, bij voorkeur uit duurzame bronnen zoals zon, wind, water en aardwarmte.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceBleiswijk, NetherlandsHQ checked Sep 19, 20261-107 contacts →

Indirect evidence

“Eniq biedt je een totaalconcept voor energiebesparing, met alles wat je nodig hebt voor een groenere levensstijl.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceRotterdam, NetherlandsHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“The most cost-effective hot water and energy solution available on the market!”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceKatwijk Aan Den Rijn, NetherlandsHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“Duurzame aardwarmte- en zonne-energiesystemen ontwerpen en installeren is wat wij doen.”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceDelft, NetherlandsHQ checked Sep 19, 20261-106 contacts →

Partial evidence

“Canopus, founded in 2019, developed a game-changing cost-effective drilling technology which improves the productivity of geothermal reservoirs by a factor 2 to 6.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceGroningen, NetherlandsHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“Solute Energietechniek is uw partner voor de verduurzaming van woningen, appartementen en vastgoedportefeuilles in Noord-Nederland.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceDuiven, NetherlandsHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“WarmGedeeld bv is dé exploitant van duurzame warmte en koude.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceSittard, NetherlandsHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

“Dom v/d Bergh Klimaat- en Koudetechniek is uw specialist op het gebied van warmtepompen, airconditioners, cv ketels, zonnepanelen, thuisbatterijen en laadpalen”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 111 geothermal heating financing companies based in the Netherlands

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Geothermal heating financing companies based in the Netherlands at a glance

As of Sep 19, 2026
40.9%Verified-email coverage
7.5Average contacts per company
1-10Median size (employees)
6.3%Largest-city concentration · Amsterdam
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
62
11-50
42
51-200
7

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 111 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 the Netherlands 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 Netherlands 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, 343 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 the Netherlands?

RevenueBase identified 111 geothermal heating financing companies headquartered in the Netherlands 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?

ETECK, headquartered in Voorburg, tops this list with the largest team on record.

Which city has the most geothermal heating financing companies?

Amsterdam leads with 7 headquartered companies, followed by Aa (3) and Delft (3).

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 343 verified decision-maker contacts tracked across these 111 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.