Company lists · Data refreshed November 2026

Top 25 Solar energy efficiency companies based in Belgium

RevenueBase identified 82 company matches for solar energy efficiency companies associated with Belgium as of November 2026 and tracks 683 professional contacts across them, including 281 with verified work emails. Zaventem is the largest hub.

This list covers company matches for solar energy efficiency companies 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 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
82Companies
683Contacts tracked
281Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest solar energy efficiency companies based in Belgium

Ranked by team size
Top 25 of 82 company matches for solar energy efficiency companies based in Belgium, 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 matchHouthalen, BelgiumHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“At Insaver, we guide you every step of the way toward a low-carbon future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchZwevegem, BelgiumHQ recorded Nov 6, 202651-20046 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchZaventem, BelgiumHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Enerdeal by EDP supports industrial and public players in their energy transition, turning solar energy into a strategic lever for performance, sustainability and independence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchEvere, BelgiumHQ recorded Nov 6, 202611-5025 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBelgië, BelgiumHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Cozie | Durable Comfort Cozie is a vibrant company that works with ENGIE to combine the energy and dynamism of a start-up with the technical competence & long-term vision of an…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchKapellen, BelgiumHQ recorded Nov 6, 202611-5024 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact match9850, BelgiumHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchVeurne, BelgiumHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Op maat van elke individuele klant werkt ESE de technisch optimale en meest economische oplossing uit voor hun specifieke energie problemen en dit steeds vanuit een ecologisch…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchTessenderlo, BelgiumHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Futech is een zonnepaneleninstallateur op de Belgische residentiële en industriële markt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchZedelgem, BelgiumHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Vraag gratis je offerte aan, Bespaar dankzij de zonnepanelen van BeliVert heel wat energiekosten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchWaasmunster, BelgiumHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Bij Go-Solar by D'Ieteren gaan wij verder dan alleen de installatie van zonnepanelen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchGhent, BelgiumHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Emaze provides actionable energy advice for the industrial, service and public sector: Energy management - Implement an energy management system (e.g.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMarche-en-famenne, BelgiumHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Green Energy 4 Seasons created in 2008 is the Walloon leader in photovoltaics.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBerchem, BelgiumHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Denercon is an energy consulting company created by Michaël Deneve and is based in Antwerp, Belgium.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBelgiumHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“Het MARS SOLAR team heeft ruim 5 jaar ervaring op het gebied van advisering, leveren en monteren van hernieuwbare energie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLummen, BelgiumHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Welcome to Solar Assistance BV, a Lummen-based solar energy pioneer providing robust solutions tailored to the distinct needs of residential, commercial, and industrial clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchZaventem, BelgiumHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“Neopower, your solar panel specialist, simplifying your transition to sustainable energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact match9000, BelgiumHQ recorded Nov 6, 202611-5010 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHerentals, BelgiumHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“Sun Eco is de specialist in uw woning energie efficiënter te maken.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRuiselede, BelgiumHQ recorded Nov 6, 202611-509 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLokeren, BelgiumHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Team Green bedekt al sinds 2006 Vlaamse daken met kwalitatief hoogstaande zonnepanelen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWortegem-petegem, BelgiumHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Welcome to SunElektro!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBeerse, BelgiumHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Bij Energie de Kempen staat de teamspirit centraal.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAntwerp, BelgiumHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Global Solar is een gespecialiseerd installateur van zonnepanelen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSint-gillis-bij-dendermonde, BelgiumHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Wij geloven in de kracht van hernieuwbare energie.”

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

Showing 25 of 82 solar energy efficiency companies based in Belgium

See the full list, filter by size, metro and specialty, and access 281 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Solar energy efficiency companies based in Belgium at a glance

As of Nov 6, 2026
41.1%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
4.9%Largest-city concentration · Zaventem
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
47
11-50
24
51-200
9

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 82 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 “solar energy efficiency companies” 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 281 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 “solar energy efficiency companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar energy efficiency companies are there based in Belgium?

RevenueBase identified 82 company matches for solar energy efficiency companies associated with Belgium 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?

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

Which city has the most solar energy efficiency companies?

Zaventem leads with 4 company records, followed by Brussels (3) and Ghent (2).

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 281 professional contacts with verified work emails tracked across these 82 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.

Ready to reach these companies? Verified emails and direct dials for all 82 solar energy efficiency companies based in Belgium. Start with a free account, no credit card.

Download this list →

Related lists

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.