Company lists · Data refreshed November 2026

Top 25 Geothermal heating contractors based in the Netherlands

RevenueBase identified 197 company matches for geothermal heating contractors associated with the Netherlands as of November 2026 and tracks 1,111 professional contacts across them, including 455 with verified work emails. Dordrecht is the largest hub.

This list covers company matches for geothermal heating contractors associated with the Netherlands, 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
197Companies
1,111Contacts tracked
455Verified emails
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The 25 largest geothermal heating contractors based in the Netherlands

Ranked by team size
Top 25 of 197 company matches for geothermal heating contractors based in the Netherlands, 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 matchSoesterberg, NetherlandsHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Koelplan Airconditioning & Warmtepompen is een vooruitstrevende klimaat installateur met focus op energiezuinige en vernieuwende klimaatbeheersingstechnologie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchDrunen, NetherlandsHQ recorded Nov 6, 202651-20054 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPurmerend, NetherlandsHQ recorded Nov 6, 202651-20053 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDokkum, NetherlandsHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“ASN Installaties zorgt voor de installatie, service en onderhoud van cv-ketels, geisers,(zonne-)boilers en zonnepanelen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchUrk, NetherlandsHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Bij Hartman Installatie in Urk, Hardenberg en Zwolle werken we elke dag aan duurzaam comfort.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHulst, NetherlandsHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“Poppe Installatietechniek is specialist in het aanleggen, onderhouden en repareren van volledige klimaatinstallaties in woningen, utiliteitsgebouwen en scholen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDiever, NetherlandsHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“Onze passie: meer comfort, minder energie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBergen Op Zoom, NetherlandsHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“P.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEindhoven, NetherlandsHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“VAN DEN HOFF Installatiebedrijf is al bijna 85 jaar vakkundig en energiek aan de slag in de installatiebranche in de regio Eindhoven.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGorredijk, NetherlandsHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“REMBORG is specialist in bronboringen voor gesloten bodemenergie systemen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchElburg, NetherlandsHQ recorded Nov 6, 202611-5019 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMiddenmeer, NetherlandsHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Inco-Drilling provides Directional Drilling Services focused on applying fit for purpose technology and a competent team to achieve cost effective solutions for Geothermal, Oil &…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLeerdam, NetherlandsHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Havelaar B.V.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWormer, NetherlandsHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Bent u op zoek naar een installateur?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLexmond, NetherlandsHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Wij zijn Installatiebedrijf Midden-Nederland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDalfsen, NetherlandsHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“CIUS Techniek B.V.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCoevorden, NetherlandsHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Hemmes Installatietechniek is een installatiebedrijf dat in 1973 is opgericht door Wout Hemmes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchIjsselstein, NetherlandsHQ recorded Nov 6, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAmersfoort, NetherlandsHQ recorded Nov 6, 202611-5012 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNieuwerbrug, NetherlandsHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Ben jij op zoek naar een goede en duurzame oplossing?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBergen Op Zoom, NetherlandsHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Installab levert totaaloplossingen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchZwaagdijk-oost, NetherlandsHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Bakker Klimaat is een service gericht installatiebedrijf.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBarneveld, NetherlandsHQ recorded Nov 6, 202611-509 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchElburg, NetherlandsHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Wij zijn Draaijer Installatietechniek B.V.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBarendrecht, NetherlandsHQ recorded Nov 6, 20261-109 contacts →

Exact match

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

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

Showing 25 of 197 geothermal heating contractors based in the Netherlands

See the full list, filter by size, metro and specialty, and access 455 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal heating contractors based in the Netherlands at a glance

As of Nov 6, 2026
41.0%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · Dordrecht
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
100
11-50
77
51-200
16

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 197 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 the Netherlands whose business descriptions match “geothermal heating contractors” 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 455 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 contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal heating contractors are there based in the Netherlands?

RevenueBase identified 197 company matches for geothermal heating contractors associated with the Netherlands 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?

Koelplan Airconditioning & Warmtepompen tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal heating contractors?

Dordrecht leads with 4 company records, followed by Amersfoort (3) and Cb (3).

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 455 professional contacts with verified work emails tracked across these 197 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.

Ready to reach these companies? Verified emails and direct dials for all 197 geothermal heating contractors based in the Netherlands. Start with a free account, no credit card.

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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.