Company lists · Data refreshed October 2026

Top 25 Geothermal system maintenance contractors based in the Netherlands

Name: Geothermal system maintenance contractors based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 13, 2026 449 companies tracked

RevenueBase identified 449 company matches for geothermal system maintenance contractors associated with the Netherlands as of October 2026 and tracks 3,840 professional contacts across them, including 1,601 with verified work emails. Ae is the largest hub.

This list covers company matches for geothermal system maintenance 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 13, 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 13, 2026 How this list was built

449Companies

3,840Contacts tracked

1,601Verified emails

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The 25 largest geothermal system maintenance contractors based in the Netherlands

Ranked by team size

Top 25 of 449 company matches for geothermal system maintenance contractors based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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	Feenstra	Exact match	Lelystad, NetherlandsHQ recorded Oct 13, 2026	1,001-5,000	789 contacts →
	Exact match “Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2	Saman Groep	Exact match	Zierikzee, NetherlandsHQ recorded Oct 13, 2026	201-500	221 contacts →
	Exact match “De energietransitie is één van de grootste maatschappelijke opgaven, maar wij begrijpen dat jouw wooncomfort net zo belangrijk is.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3	Bonarius Bedrijven	Exact match	Zwanenburg, NetherlandsHQ recorded Oct 13, 2026	201-500	197 contacts →
	Exact match “Bonarius Bedrijven De naam Bonarius was lange tijd synoniem voor de aanleg en het onderhoud van cv-installaties.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4	Installatie Maatschappij H.Ek. B.V	Exact match	's Hertogenbosch, NetherlandsHQ recorded Oct 13, 2026	51-200	67 contacts →
	Exact match “Installatie Maatschappij H.Ek B.V.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5	Koelplan Airconditioning & Warmtepompen	Exact match	Soesterberg, NetherlandsHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
6	Peters Installatietechniek	Exact match	Zevenaar, NetherlandsHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
7	Breman Zuid	Exact match	Drunen, NetherlandsHQ recorded Oct 13, 2026	51-200	52 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8	VAN Hoften Installatietechniek BV	Exact match	Hardinxveld-Giessendam, NetherlandsHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
9	ESNW	Exact match	Alkmaar, NetherlandsHQ recorded Oct 13, 2026	51-200	44 contacts →
	Exact match “ESNW is een toonaangevend én leuk bedrijf met ruim 120 gemotiveerde medewerkers.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10	Sankomij Installatietechniek BV	Exact match	Veldhoven, NetherlandsHQ recorded Oct 13, 2026	51-200	43 contacts →
	Exact match “Sankomij Installatietechniek BV verzorgt installatiewerkzaamheden in nieuwbouw, renovatie en groot onderhoud.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11	Werkendamse Verwarmings Centrale EN Werkendamse Verwarmings Industrie	Exact match	Werkendam, NetherlandsHQ recorded Oct 13, 2026	51-200	37 contacts →
	Exact match “De Werkendamse Verarmings Centrale (WVC) en de Werkendamse Verwarmings Industrie (WVI)('de Werkendamse') staan samen voor een totale beheersing van het binnenklimaat.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12	Mensonides Installatie	Exact match	Harlingen, NetherlandsHQ recorded Oct 13, 2026	51-200	36 contacts →
	Exact match “MENSONIDES.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13	VAN DEN Biggelaar Installatietechniek	Exact match	Sint-oedenrode, NetherlandsHQ recorded Oct 13, 2026	51-200	35 contacts →
	Exact match “Van den Biggelaar Installatietechniek is de totaalinstallateur op het gebied van woningbouw, renovatie en service.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14	Pola Installatietechniek	Exact match	Zevenaar, NetherlandsHQ recorded Oct 13, 2026	51-200	34 contacts →
	Exact match “Al ruim 60 jaar het vertrouwde gezicht in de installatietechniek.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15	Engeltherm Klimaatspecialisten	Exact match	Montfoort (utrecht), NetherlandsHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
16	ASN Installaties	Exact match	Dokkum, NetherlandsHQ recorded Oct 13, 2026	11-50	34 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 · Oct 13, 2026 · View company records in RevenueBase
17	Hartman Installatie	Exact match	Urk, NetherlandsHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
18	Zondervan Groep	Exact match	Rhoon, NetherlandsHQ recorded Oct 13, 2026	51-200	32 contacts →
	Exact match “Zondervan Groep is een w-installatiebedrijf.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19	Locas Installatietechniek	Exact match	Haarlem, NetherlandsHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
20	Poppe Installatietechniek	Exact match	Hulst, NetherlandsHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
21	Heluto BV	Exact match	Diever, NetherlandsHQ recorded Oct 13, 2026	51-200	29 contacts →
	Exact match “Onze passie: meer comfort, minder energie.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22	Instain Installatietechniek	Exact match	Vollehandsweg 2, NetherlandsHQ recorded Oct 13, 2026	51-200	29 contacts →
	Exact match “Instain, duurzaam wonen beschikbaar maken voor iedereen!” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23	Dries Rolde B.V.	Exact match	Rolde, NetherlandsHQ recorded Oct 13, 2026	11-50	25 contacts →
	Exact match “Dries Rolde is een ervaren installatiebedrijf in Drenthe sinds 1971.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24	Energie Service Friesland	Exact match	Heerenveen, NetherlandsHQ recorded Oct 13, 2026	11-50	22 contacts →
	Exact match “Energie Service Friesland is de grootste onafhankelijke serviceorganisatie in Fryslân op het gebied van verwarming, warm water, koeling en duurzame technieken.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25	Runwell Energy Services	Exact match	Emmen, NetherlandsHQ recorded Oct 13, 2026	11-50	22 contacts →
	Exact match “We are a company in the petrochemical and geothermal industry who is specialized in the maintenance and re-certification of equipment used in these industries such as- High…” Recorded in the RevenueBase company graph · Oct 13, 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 “geothermal system maintenance 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 449 geothermal system maintenance contractors based in the Netherlands

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Geothermal system maintenance contractors based in the Netherlands at a glance

As of Oct 13, 2026

41.7%Verified-email coverage

8.6Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Ae

Oct 13, 2026Page data refreshed

Companies by employee count

1-10

222

11-50

180

51-200

201-500

1,001-5,000

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 449 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 system maintenance 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 1,601 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 13, 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 system maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal system maintenance contractors are there based in the Netherlands?

RevenueBase identified 449 company matches for geothermal system maintenance 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?

Feenstra tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal system maintenance contractors?

Ae leads with 6 company records, followed by Dordrecht (5) and Amersfoort (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 1,601 professional contacts with verified work emails tracked across these 449 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 13, 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.