Company lists · Data refreshed October 2026

Top 25 Energy efficient home upgrade contractors based in Belgium

Name: Energy efficient home upgrade contractors based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 241 companies tracked

RevenueBase identified 241 company matches for energy efficient home upgrade contractors associated with Belgium as of October 2026 and tracks 1,218 professional contacts across them, including 425 with verified work emails. Liege is the largest hub.

This list covers company matches for energy efficient home upgrade contractors associated with Belgium, 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 12, 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 12, 2026 How this list was built

241Companies

1,218Contacts tracked

425Verified emails

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The 25 largest energy efficient home upgrade contractors based in Belgium

Ranked by team size

Top 25 of 241 company matches for energy efficient home upgrade contractors based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Reno Energy	Exact match	Liège (angleur), BelgiumHQ recorded Oct 12, 2026	51-200	103 contacts →
	Exact match “Reno Energy est une entreprise spécialisée dans le secteur de la rénovation énergétique mais aussi dans la nouvelle construction.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Energyking	Exact match	Herent, BelgiumHQ recorded Oct 12, 2026	51-200	53 contacts →
	Exact match “EnergyKing werd in 2013 opgericht door twee ingenieurs: Lucas & Wiet.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	MR Solar	Exact match	Zwevegem, BelgiumHQ recorded Oct 12, 2026	51-200	44 contacts →
	Exact match “Efficiency Thanks to our advice focused on a sustainable ecosystem, we offer our customers a tailor-made energy solution, resulting in optimal efficiency in both the near and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Goessens	Exact match	Hannut, BelgiumHQ recorded Oct 12, 2026	51-200	28 contacts →
	Exact match “Goessens est une société spécialisée dans l'installation de systèmes de chauffage, de ventilation et de climatisation.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Group VHC	Exact match	Overijse, BelgiumHQ recorded Oct 12, 2026	51-200	24 contacts →
	Exact match “Group VHC zorgt al meer dan 25 jaar voor slimme oplossingen in verwarming, koeling, ventilatie en zonne energie.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Soltis	Exact match	Evere, BelgiumHQ recorded Oct 12, 2026	11-50	24 contacts →
	Exact match “Soltis est une entreprise créée en 2008 qui accompagne professionnels et particuliers dans la mise en place de solutions vertes et rentables avec un seul but: améliorer…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	QUITO	Exact match	Noville-les-bois, BelgiumHQ recorded Oct 12, 2026	1-10	24 contacts →
	Exact match “Quito existe pour offrir une solution coordonnée aux propriétaires cherchant à améliorer la performance énergétique de leur bien le plus simplement et esthétiquement possible afin…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Telcom	Exact match	Hulshout, BelgiumHQ recorded Oct 12, 2026	51-200	23 contacts →
	Exact match “Telcom is een bedrijf dat zich op vlak van de energie- en nutsvoorziening een specialist kan noemen.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Ecopuur	Exact match	9850, BelgiumHQ recorded Oct 12, 2026	11-50	22 contacts →
	Exact match “Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	ENSYS	Exact match	Kapellen, BelgiumHQ recorded Oct 12, 2026	11-50	21 contacts →
	Exact match “As specialists in the field of renewable energy and energy efficiency, we offer unique proposals to both individuals and businesses.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Belivert	Exact match	Zedelgem, BelgiumHQ recorded Oct 12, 2026	51-200	21 contacts →
	Exact match “Vraag gratis je offerte aan, Bespaar dankzij de zonnepanelen van BeliVert heel wat energiekosten.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Isolution	Exact match	Namur, BelgiumHQ recorded Oct 12, 2026	11-50	19 contacts →
	Exact match “ISOLUTION est une société spécialisée dans l'isolation et la ventilation de bâtiment pour particuliers et professionnels, et ce depuis plus de 12 ans Aujourd'hui, Isolution compte…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	LA Temperature Ideale	Exact match	Charleroi, BelgiumHQ recorded Oct 12, 2026	11-50	19 contacts →
	Exact match “LA TEMPERATURE IDEALE Spécialiste de l'installation, de la rénovation et du dépannage de chauffages, nous sommes à même de vous conseiller avant tout travaux que vous désiriez…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	IQ Solar BE	Exact match	Evergem, BelgiumHQ recorded Oct 12, 2026	11-50	18 contacts →
	Exact match “IQ Solar specialiseert zich in het kwaliteitsvol installeren van zonnepanelen.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Intellisol	Exact match	Maaseik, BelgiumHQ recorded Oct 12, 2026	11-50	14 contacts →
	Exact match “Intellisol is een multitechnisch installatie bedrijf met eigen studiebureau uit Maaseik dat gespecialiseerd is in het ontwerpen en plaatsen van energiezuinige installaties, zonder…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Isolteam	Exact match	Kortemark, BelgiumHQ recorded Oct 12, 2026	51-200	13 contacts →
	Exact match “Isolteam, met vestigingen in Kortemark, Hoboken en Denderleeuw, beschikt over een dynamische ploeg van meer dan 75 bedreven experten, zowel op vlak van studie als van uitvoering.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Victor Renoveert	Exact match	Drongen, BelgiumHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “Victor heeft als totaalaannemer alle expertise inzake renovatie onder één dak en neemt het hele verbouwproces op zich.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Alfasun	Exact match	Ninove, BelgiumHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “nergie zonder zorgen Ga je bouwen?” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	VDB Engineering	Exact match	Mechelen, BelgiumHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Bewust omgaan met energie is voor zowel bedrijven als particulieren een hot topic.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	H&s Powersolutions	Exact match	Hasselt, BelgiumHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “H&S Powersolutions is a company that specializes in renewable energy.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Proenergy	Exact match	Ruiselede, BelgiumHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Proenergy is een bedrijf dat in 2010 werd opgericht door Steven Roels, gedreven door een grote passie voor groene energie-installaties zoals zonnepanelen, warmtepompen…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Bowers	Exact match	Gistel, BelgiumHQ recorded Oct 12, 2026	11-50	10 contacts →
	Exact match “BOWERS® creëert doordachte woon- en werkplekken door goed te isoleren, optimaal te ventileren, energiezuinig te verwarmen en alles ‘smart’ op elkaar af te stemmen.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Team Green	Exact match	Lokeren, BelgiumHQ recorded Oct 12, 2026	11-50	9 contacts →
	Exact match “Wie zijn we?” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Solitec	Exact match	9000, BelgiumHQ recorded Oct 12, 2026	11-50	9 contacts →
	Exact match “Bij Solitec zetten we ons in om bedrijven en particulieren te helpen in hun transitie naar een duurzamere toekomst, met oplossingen die niet alleen energie-efficiënt maar ook…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Klimaplan	Exact match	Kontich, BelgiumHQ recorded Oct 12, 2026	11-50	9 contacts →
	Exact match “KLIMAPLAN is a construction company based out of 83 Blauwesteenstraat, Kontich, Belgium.” Recorded in the RevenueBase company graph · Oct 12, 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 “energy efficient home upgrade 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 241 energy efficient home upgrade contractors based in Belgium

See the full list, filter by size, metro and specialty, and access 425 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficient home upgrade contractors based in Belgium at a glance

As of Oct 12, 2026

34.9%Verified-email coverage

5.1Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · Liege

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

152

11-50

51-200

Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 241 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 Belgium whose business descriptions match “energy efficient home upgrade 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 425 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 12, 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 “energy efficient home upgrade contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficient home upgrade contractors are there based in Belgium?

RevenueBase identified 241 company matches for energy efficient home upgrade contractors associated with Belgium 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?

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

Which city has the most energy efficient home upgrade contractors?

Liege leads with 7 company records, followed by Antwerp (4) and Brussels (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 425 professional contacts with verified work emails tracked across these 241 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 12, 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.