Company lists · Data refreshed October 2026

Top 25 Commercial geothermal contractors based in the Netherlands

Name: Commercial geothermal contractors based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 275 companies tracked

RevenueBase identified 275 company matches for commercial geothermal contractors associated with the Netherlands as of October 2026 and tracks 1,738 professional contacts across them, including 666 with verified work emails. Aa is the largest hub.

This list covers company matches for commercial geothermal 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 October 10, 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 Oct 10, 2026 How this list was built

275Companies

1,738Contacts tracked

666Verified emails

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The 25 largest commercial geothermal contractors based in the Netherlands

Ranked by team size

Top 25 of 275 company matches for commercial geothermal contractors based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Koelplan Airconditioning & Warmtepompen	Exact match	Soesterberg, NetherlandsHQ recorded Oct 10, 2026	51-200	63 contacts →
	Exact match “Koelplan Airconditioning & Warmtepompen is een vooruitstrevende klimaat installateur met focus op energiezuinige en vernieuwende klimaatbeheersingstechnologie.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	Peters Installatietechniek	Exact match	Zevenaar, NetherlandsHQ recorded Oct 10, 2026	51-200	53 contacts →
	Exact match “Dé specialist voor advies, plaatsing en onderhoud van duurzame, innovatieve en prefab klimaatinstallaties.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Breman Zuid	Exact match	Drunen, NetherlandsHQ recorded Oct 10, 2026	51-200	52 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	VAN Hoften Installatietechniek BV	Exact match	Hardinxveld-Giessendam, NetherlandsHQ recorded Oct 10, 2026	51-200	48 contacts →
	Exact match “Wanneer je op zoek bent naar innovatieve en duurzame installatietechniek voor sanitair en klimaatinstallaties zijn wij de juiste partner.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Emondt Multiclima L Emondt Koeltechniek	Exact match	Enschede, NetherlandsHQ recorded Oct 10, 2026	51-200	38 contacts →
	Exact match “Emondt Multiclima l Emondt Koeltechniek In nauwe samenwerking met onze klanten ontwerpen, leveren en installeren wij landelijk duurzame en energiezuinige koel- en klimaatprojecten.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	Pola Installatietechniek	Exact match	Zevenaar, NetherlandsHQ recorded Oct 10, 2026	51-200	34 contacts →
	Exact match “Al ruim 60 jaar het vertrouwde gezicht in de installatietechniek.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Engeltherm Klimaatspecialisten	Exact match	Montfoort (utrecht), NetherlandsHQ recorded Oct 10, 2026	51-200	34 contacts →
	Exact match “Het landelijk werkende Engeltherm, opgericht in 1998, met vestigingen in Montfoort (Utr.), Eindhoven en Lochem is gespecialiseerd in het op maat ontwerpen en vakkundig installeren…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Hartman Installatie	Exact match	Urk, NetherlandsHQ recorded Oct 10, 2026	51-200	33 contacts →
	Exact match “Bij Hartman Installatie in Urk, Hardenberg en Zwolle werken we elke dag aan duurzaam comfort.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Locas Installatietechniek	Exact match	Haarlem, NetherlandsHQ recorded Oct 10, 2026	51-200	32 contacts →
	Exact match “Als duurzame totaalinstallateur staan wij bekend om onze expertise in het ontwerpen, installeren en onderhouden van energie-efficiënte systemen.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Voshol Warmte	Exact match	Waddinxveen, NetherlandsHQ recorded Oct 10, 2026	11-50	30 contacts →
	Exact match “Voshol Warmte-Elektrotechniek is een advies, ontwerp- en installatiebedrijf met als specialisme klimaatbeheersing.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Poppe Installatietechniek	Exact match	Hulst, NetherlandsHQ recorded Oct 10, 2026	51-200	29 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 · Oct 10, 2026 · View company records in RevenueBase
12	Heluto BV	Exact match	Diever, NetherlandsHQ recorded Oct 10, 2026	51-200	29 contacts →
	Exact match “Onze passie: meer comfort, minder energie.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Instain Installatietechniek	Exact match	Vollehandsweg 2, NetherlandsHQ recorded Oct 10, 2026	51-200	29 contacts →
	Exact match “Instain, duurzaam wonen beschikbaar maken voor iedereen!” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	VAN DEN Hoff Installatiebedrijf BV	Exact match	Eindhoven, NetherlandsHQ recorded Oct 10, 2026	11-50	21 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 · Oct 10, 2026 · View company records in RevenueBase
15	Duratherm	Exact match	Elburg, NetherlandsHQ recorded Oct 10, 2026	11-50	20 contacts →
	Exact match “Duratherm is een zelfstandig onderdeel van Draaijer Grondboringen Beheer BV.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	P. Jansen Installatietechniek B.V	Exact match	Bergen Op Zoom, NetherlandsHQ recorded Oct 10, 2026	51-200	19 contacts →
	Exact match “P.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Remborg Bodemenergie	Exact match	Gorredijk, NetherlandsHQ recorded Oct 10, 2026	51-200	19 contacts →
	Exact match “REMBORG is specialist in bronboringen voor gesloten bodemenergie systemen.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Bcool Klimaatbeheersing B.V	Exact match	Velsen-noord, NetherlandsHQ recorded Oct 10, 2026	11-50	18 contacts →
	Exact match “Met 35 specialistisch opgeleide koelmonteurs in volledig uitgeruste bedrijfsbussen is Bcool een betrouwbare partner voor alle klimaat uitdagingen.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Vredenburg	Exact match	Steenwijk, NetherlandsHQ recorded Oct 10, 2026	11-50	18 contacts →
	Exact match “Sinds de oprichting in 1922 staat Vredenburg Installatietechniek bekend als een innovatieve installateur.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	NEVO	Exact match	Amsterdam, NetherlandsHQ recorded Oct 10, 2026	11-50	18 contacts →
	Exact match “Nevo klimaatbeheersing levert engineering, installatie & service op maat.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	Havelaar B.V. Duurzame Installatietechniek	Exact match	Leerdam, NetherlandsHQ recorded Oct 10, 2026	11-50	15 contacts →
	Exact match “Havelaar B.V.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Inco-Drilling	Exact match	Middenmeer, NetherlandsHQ recorded Oct 10, 2026	11-50	14 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 · Oct 10, 2026 · View company records in RevenueBase
23	Alwako Installaties	Exact match	Valkenswaard, NetherlandsHQ recorded Oct 10, 2026	11-50	14 contacts →
	Exact match “Als designers van comfort op het gebied van warmte & koude techniek, sanitair en service & onderhoud voor particulieren en bedrijven, zijn wij een verrijking voor het dagelijkse…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	M&o Techniek	Exact match	Wormer, NetherlandsHQ recorded Oct 10, 2026	11-50	14 contacts →
	Exact match “Bent u op zoek naar een installateur?” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Cius Warmtepomptechniek	Exact match	Dalfsen, NetherlandsHQ recorded Oct 10, 2026	11-50	13 contacts →
	Exact match “CIUS Techniek B.V.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “commercial geothermal contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 275 commercial geothermal contractors based in the Netherlands

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Commercial geothermal contractors based in the Netherlands at a glance

As of Oct 10, 2026

38.3%Verified-email coverage

6.3Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Aa

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

123

11-50

120

51-200

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 275 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 “commercial geothermal 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 666 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 October 10, 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 “commercial geothermal contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 275 company matches for commercial geothermal contractors associated with the Netherlands as of October 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 commercial geothermal contractors?

Aa leads with 4 company records, followed by Ae (4) and Kl (4).

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 666 professional contacts with verified work emails tracked across these 275 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 October 10, 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 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.