Company lists · Data refreshed September 2026

Top 25 Geothermal cooperatives based in the Netherlands

RevenueBase identified 221 geothermal cooperatives headquartered in the Netherlands as of September 2026 and tracks 1,520 professional contacts across them, including 567 with verified work emails. Amsterdam is the largest hub.

This list covers geothermal cooperatives 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
221Companies
1,520Contacts tracked
567Verified emails
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The 25 largest geothermal cooperatives based in the Netherlands

Ranked by team size
Top 25 of 221 geothermal cooperatives 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 cooperatives: 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 evidenceEnschede, NetherlandsHQ checked Sep 19, 202651-200114 contacts →

Indirect evidence

“Dat is waar wij voor gaan, met jou.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 2026201-50081 contacts →

Indirect evidence

“Land van Ons is een coöperatie van en voor alle burgers van Nederland.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceHaarlem, NetherlandsHQ checked Sep 19, 202651-20072 contacts →

Indirect evidence

“Over Winst uit je woning: Bij Winst uit je woning maken we werk van verduurzaming.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect 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
5Indirect evidenceUtrecht, NetherlandsHQ checked Sep 19, 202651-20052 contacts →

Indirect evidence

“Windunie is een coöperatie van ruim 225 windmolenaars en windparken.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceMiddenmeer, NetherlandsHQ checked Sep 19, 202611-5042 contacts →

Indirect evidence

“ECW Energy is een modern privaat nutsbedrijf.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceHeerlen, NetherlandsHQ checked Sep 19, 202611-5035 contacts →

Indirect evidence

“De energietransitie is volop aan de gang.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 202611-5033 contacts →

Indirect evidence

“om | nieuwe energie is het allergroenste energiecollectief en de enige landelijke leverancier zónder winstoogmerk.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceApeldoorn, NetherlandsHQ checked Sep 19, 202611-5032 contacts →

Indirect evidence

“deA is de lokale energiecoöperatie van en voor inwoners en bedrijven in de gemeente Apeldoorn.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceMiddenmeer, NetherlandsHQ checked Sep 19, 202611-5027 contacts →

Indirect evidence

“Wij zijn Ennatuurlijk Aardwarmte.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceGroningen, NetherlandsHQ checked Sep 19, 202611-5025 contacts →

Indirect evidence

“Wij zijn de grootste energiecoöperatie in Groningen en één van de grootsten van Nederland.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial 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
13Indirect evidenceBussum, NetherlandsHQ checked Sep 19, 202651-20022 contacts →

Indirect evidence

“Wattnu is de energiecoöperatie van Gooise Meren.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceGeldermalsen, NetherlandsHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

“Energie Samen Rivierenland is een lokale, coöperatieve energiebeweging die duurzame energie-initiatieven aanjaagt en versterkt.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceDen Bosch, NetherlandsHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

“Enpuls Warmte Infra richt zich op het mogelijk maken van duurzame warmte-infrastructuur.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceVlissingen, NetherlandsHQ checked Sep 19, 202611-5020 contacts →

Indirect evidence

“Met ruim 3.500 leden is Zeeuwind de afgelopen decennia uitgegroeid tot een van de grootste duurzame energiecoöperaties van Nederland.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceRijen, NetherlandsHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“Vrijopnaam is een onafhankelijke speler in de energiesector die jou in staat stelt zelf energie op te wekken.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect 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
19Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 19, 202611-5013 contacts →

Indirect evidence

“Een koepel van energiecoöperaties in de Provincie Utrecht.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceOude-tonge, NetherlandsHQ checked Sep 19, 202611-5013 contacts →

Indirect evidence

“De Coöperatie Deltawind is eind tachtiger jaren ontstaan op initiatief van eilandbewoners.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceSomeren, NetherlandsHQ checked Sep 19, 20261-1013 contacts →

Indirect evidence

“Specialist in zonne-energie Onderscheidend door onze dak-geïntegreerde systemen, landelijke samenwerking met Solar-systemen.nl, uitstekend installatie-team met eigen mensen en…”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceDen Haag, NetherlandsHQ checked Sep 19, 20261-1012 contacts →

Partial evidence

Geothermie Nederland is the branch organisation for geothermal energy and promotes the responsible use of geothermal energy in the Netherlands.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect 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
24Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 20261-1011 contacts →

Indirect evidence

“Buurtcoöperatie MeerEnergie ontwikkelt een buurtwarmtenet van én voor bewoners in Middenmeer, dat gebruik maakt van restwarmte van een datacenter.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceLochem, NetherlandsHQ checked Sep 19, 202651-20011 contacts →

Indirect evidence

“De coöperatie LochemEnergie wil inwoners helpen om te besparen op hun energieverbruik.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 221 geothermal cooperatives based in the Netherlands

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Geothermal cooperatives based in the Netherlands at a glance

As of Sep 19, 2026
37.3%Verified-email coverage
6.9Average contacts per company
1-10Median size (employees)
5.4%Largest-city concentration · Amsterdam
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
145
11-50
52
51-200
20
201-500
3
1,001-5,000
1

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 221 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 cooperatives, 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 cooperatives”. 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 cooperatives), 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 cooperatives, 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, 567 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 cooperatives, 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 cooperatives are there based in the Netherlands?

RevenueBase identified 221 geothermal cooperatives 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?

Pure Energie, headquartered in Enschede, tops this list with the largest team on record.

Which city has the most geothermal cooperatives?

Amsterdam leads with 12 headquartered companies, followed by Delft (6) and Rotterdam (5).

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 567 verified decision-maker contacts tracked across these 221 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.