Company lists · Data refreshed October 2026

Top 25 Geothermal contractors based in the Netherlands

Name: 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 13, 2026 580 companies tracked

RevenueBase identified 580 company matches for geothermal contractors associated with the Netherlands as of October 2026 and tracks 5,149 professional contacts across them, including 2,115 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for 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 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

580Companies

5,149Contacts tracked

2,115Verified emails

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The 25 largest geothermal contractors based in the Netherlands

Ranked by team size

Top 25 of 580 company matches for geothermal 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	WSG Energy Services	Exact match	Emmen, NetherlandsHQ recorded Oct 13, 2026	201-500	315 contacts →
	Exact match “WSG Energy Services is a global specialist service provider to traditional and new clean energy infrastructure.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3	ETECK	Exact match	Voorburg, NetherlandsHQ recorded Oct 13, 2026	51-200	149 contacts →
	Exact match “Eteck levert duurzame energie in de vorm van koude en warmte.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4	Nathan Group	Exact match	Zevenaar, NetherlandsHQ recorded Oct 13, 2026	51-200	127 contacts →
	Exact match “With five specialized organizations, the Nathan Group is the one stop shopping address for all projects in the field of sustainable heating and cooling.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5	SEW Energy	Exact match	Broek Op Langedijk, NetherlandsHQ recorded Oct 13, 2026	51-200	105 contacts →
	Exact match “SEW Energy, based in Broek op Langedijk, North Holland, delivers EPIC projects (Engineering, Procurement, Installation, Construction) within the industrial sector.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6	IF Technology	Exact match	Arnhem, NetherlandsHQ recorded Oct 13, 2026	51-200	83 contacts →
	Exact match “At IF Technology we are committed to the transition from the use of fossil fuels to sustainable energy.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
7	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
8	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
9	Silicon	Exact match	Wateringen, NetherlandsHQ recorded Oct 13, 2026	51-200	62 contacts →
	Exact match “SILICON is a metal fabrication company, designing and manufacturing a wide range of specialist heat-resistant anchors for use in the petrochemical, cement, incineration, steel and…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10	Panterra Geoconsultants BV	Exact match	Leiderdorp, NetherlandsHQ recorded Oct 13, 2026	51-200	61 contacts →
	Exact match “PanTerra Geoconsultants is a leading geological service provider with over 35 years of worldwide industry experience.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11	Haitjema Grondboorbedrijf B.V	Exact match	Dedemsvaart, NetherlandsHQ recorded Oct 13, 2026	51-200	59 contacts →
	Exact match “Dutch independent water well drilling company and manufacturer of complete groundwater installations suitable for drinking water, process water, and aquifer energy storage as well…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12	BGM Infra B.V	Exact match	Cuijk, NetherlandsHQ recorded Oct 13, 2026	201-500	58 contacts →
	Exact match “BGM Infra is als multidisciplinaire aannemer met meer dan 200 harde werkers volledig toegewijd aan het uitvoeren van integrale projecten in ondergrondse infrastructuur.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13	VAN Tiem Elektro BV	Exact match	Wamel, NetherlandsHQ recorded Oct 13, 2026	51-200	55 contacts →
	Exact match “Samen met circa 70 collega's werken wij iedere dag in ons familiebedrijf aan het installeren en onderhouden van elektrotechnische installaties in binnen-en buitenland.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14	SVP	Exact match	Purmerend, NetherlandsHQ recorded Oct 13, 2026	51-200	53 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 · Oct 13, 2026 · View company records in RevenueBase
15	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
16	Aannemingsbedrijf Qualm	Exact match	Rozenburg, NetherlandsHQ recorded Oct 13, 2026	51-200	52 contacts →
	Exact match “Aanleg leidingwerk voor bluswater, gas, drinkwater, etc.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17	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
18	Lesscher Installatietechniek	Exact match	Saasveld, NetherlandsHQ recorded Oct 13, 2026	51-200	49 contacts →
	Exact match “Lesscher Installatietechniek is met recht een totaalinstallateur.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19	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
20	LEK Habo	Exact match	Bodegraven, NetherlandsHQ recorded Oct 13, 2026	51-200	47 contacts →
	Exact match “Lek/Habo is specialized in the engineering, installation and maintenance of sustainable energy installations.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21	Paans Installatiebedrijven BV	Exact match	Meerkerk, NetherlandsHQ recorded Oct 13, 2026	51-200	43 contacts →
	Exact match “Paans Installatiebedrijven is al sinds de oprichting in 1964 een uitstekende naam in de installatie branche.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22	Tjaden B.V	Exact match	Zevenbergschen Hoek, NetherlandsHQ recorded Oct 13, 2026	51-200	37 contacts →
	Exact match “Tjaden is een gespecialiseerde, in binnen- en buitenland opererende aannemer op het gebied van bronbemaling, boringen, grondwatersystemen en waterbehandelingstechniek.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23	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
24	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
25	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

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 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 580 geothermal contractors based in the Netherlands

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Geothermal contractors based in the Netherlands at a glance

As of Oct 13, 2026

41.1%Verified-email coverage

8.9Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Amsterdam

Oct 13, 2026Page data refreshed

Companies by employee count

1-10

265

11-50

255

51-200

201-500

501-1,000

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 580 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 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 2,115 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 contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal contractors are there based in the Netherlands?

RevenueBase identified 580 company matches for 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?

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

Which city has the most geothermal contractors?

Amsterdam leads with 9 company records, followed by Ae (6) and Aw (5).

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 2,115 professional contacts with verified work emails tracked across these 580 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.