Company lists · Data refreshed November 2026

Top 25 Residential energy efficiency contractors based in the Netherlands

RevenueBase identified 155 company matches for residential energy efficiency contractors associated with the Netherlands as of November 2026 and tracks 1,757 professional contacts across them, including 717 with verified work emails. The Hague is the largest hub.

This list covers company matches for residential energy efficiency 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
155Companies
1,757Contacts tracked
717Verified emails
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The 25 largest residential energy efficiency contractors based in the Netherlands

Ranked by team size
Top 25 of 155 company matches for residential energy efficiency 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 matchLelystad, NetherlandsHQ recorded Nov 6, 20261,001-5,000813 contacts →

Exact match

“Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchZierikzee, NetherlandsHQ recorded Nov 6, 2026201-500221 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHaarlem, NetherlandsHQ recorded Nov 6, 202651-20070 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSchiedam, NetherlandsHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“25 jaar gegarandeerd energieneutraal Klimaatgarant zorgt voor de best mogelijke energieprestatie van woningen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMoerkapelle, NetherlandsHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Isolatiespecialist.nl is een vertrouwde partner voor vele aannemers en woningcorporaties, betrokken bij het isoleren van zowel woningen als bedrijfspanden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“Groenpand helpt je om onafhankelijk te worden van vervuilende, fossiele energie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchVaassen, NetherlandsHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Beter Duurzaam is dé specialist en uw partner op het gebied van duurzame oplossingen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGroningen, NetherlandsHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“EnergiePloeg biedt eerlijk en onafhankelijk advies over het verduurzamen van woningen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchHeemskerk, NetherlandsHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Comfort Isolatie is gespecialiseerd in het verduurzamen van woningen en bedrijfspanden met hoogwaardige isolatieoplossingen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“HomeQgo biedt de snelste weg naar advies en offertes bij het verduurzamen van je woning, het verbeteren van je energielabel en het verhogen van je wooncomfort.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBorne, NetherlandsHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Duurzaam bouwen en renoveren begint met energie-efficiëntie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchGenemuiden, NetherlandsHQ recorded Nov 6, 202651-20015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEp, NetherlandsHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“De Energiebespaarders enable people to upgrade their home to save energy hassle-free.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Bij Energy Guards helpen wij je met het toekomstbestendig maken van je woning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEindhoven, NetherlandsHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Method We can compile good advice based on a clear inventory of your current situation in energy consumption.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact matchApeldoorn, NetherlandsHQ recorded Nov 6, 20261-108 contacts →

Exact match

“A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchTer Apel, NetherlandsHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Een gereduceerde energienota, een gezonder leefklimaat en waardeverhoging van uw woning of vastgoed.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAlmere, NetherlandsHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Koston Nederland is ruim 40 jaar gespecialiseerd in energiebesparende maatregelen voor gebouwen en woningen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRosmalen, NetherlandsHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Positief Wonen ontzorgt jou (of je klant) bij het verduurzamen van de woning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTegelen, NetherlandsHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Bespaar je de energie!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGroningen, NetherlandsHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Solute Energietechniek is uw partner voor de verduurzaming van woningen, appartementen en vastgoedportefeuilles in Noord-Nederland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchVeenendaal, NetherlandsHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Van A tot Z energie en comfort management, dit alles vanuit het perspectief van een duurzame, veilige en gezonde leefomgeving, dit is ECS (Energy & Comfort Solutions).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact match’s-hertogenbosch, NetherlandsHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Want more comfort and lower energy bills?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchVenlo, NetherlandsHQ recorded Nov 6, 202611-505 contacts →

Exact match

“IsoTech Venlo is met jarenlange expertise de totaalpartner bij het verduurzamen van uw woning(en), bedrijfspand(en) en overige onroerende goederen.”

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

Showing 25 of 155 residential energy efficiency contractors based in the Netherlands

See the full list, filter by size, metro and specialty, and access 717 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Residential energy efficiency contractors based in the Netherlands at a glance

As of Nov 6, 2026
40.8%Verified-email coverage
11.3Average contacts per company
1-10Median size (employees)
3.2%Largest-city concentration · The Hague
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
93
11-50
47
51-200
9
201-500
1
1,001-5,000
1
5,001-10,000
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 155 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 “residential energy efficiency 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 717 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 “residential energy efficiency contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many residential energy efficiency contractors are there based in the Netherlands?

RevenueBase identified 155 company matches for residential energy efficiency 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?

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

Which city has the most residential energy efficiency contractors?

The Hague leads with 5 company records, followed by Rotterdam (4) and Amersfoort (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 717 professional contacts with verified work emails tracked across these 155 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.

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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.