Company lists · Data refreshed November 2026

Top 25 Energy efficiency technology companies based in Belgium

RevenueBase identified 89 company matches for energy efficiency technology companies associated with Belgium as of November 2026 and tracks 920 professional contacts across them, including 416 with verified work emails. Ghent is the largest hub.

This list covers company matches for energy efficiency technology 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
89Companies
920Contacts tracked
416Verified emails
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The 25 largest energy efficiency technology companies based in Belgium

Ranked by team size
Top 25 of 89 company matches for energy efficiency technology 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 matchHarelbeke, BelgiumHQ recorded Nov 6, 202651-200126 contacts →

Exact match

“Smappee is an energy technology company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHamme-mille, BelgiumHQ recorded Nov 6, 202611-5086 contacts →

Exact match

“CEE is a cleantech company that guides energy-intensive frontrunners to net zero in their industrial production processes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5058 contacts →

Exact match

“Together, let’s take on the energy transition challenge!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchEtterbeek, BelgiumHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“AYA is an integrated network of forward-thinking Energy Managers that will help your company develop a comprehensive energy policy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchNoville-les-bois, BelgiumHQ recorded Nov 6, 20261-1027 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact 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
9Exact matchAngleur, BelgiumHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“ACTIVITÉS ET PRODUITS CORETEC, votre partenaire vers une gestion durable et performante de votre énergie, a comme principal objectif de réduire la facture énergétique et donc…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchThimister-clermont, BelgiumHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“DELPOWER is an energy efficiency engineering company dedicated to optimising energy costs for tertiary and industrial customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAntwerp, BelgiumHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“The sleek and smart (AI) software that makes energy efficiency effortless across 10’s, 100’s and of buildings.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSint-jans-molenbeek, BelgiumHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Europees leider in energiebeheer Techem, opgericht in 1962, is een Duitse groep die wereldwijd bekend is bij mede-eigenaren en sociale verhuurders op het gebied van energiebeheer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact matchGhent, BelgiumHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Wattson maakt van gebouwen de gangmakers van de energietransitie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact match2550 Kontich, BelgiumHQ recorded Nov 6, 2026201-50020 contacts →

Exact match

“Priva Building Automation helps owners, developers and investors to build environments that make people feel better while using energy in the most sustainable manner possible.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact matchWoluwe-saint-lambert, BelgiumHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Energy Management Software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“At dnergy ®, we are committed to enabling asset and facility managers to enhance their building portfolios' energy efficiency and proactive compliance through our innovative dEEP…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGhent, BelgiumHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Looking for energy savings and don't know where to begin?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMechelen, BelgiumHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Bewust omgaan met energie is voor zowel bedrijven als particulieren een hot topic.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGenk, BelgiumHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Wij helpen jouw bedrijf van A tot Z om maatschappelijk verantwoord te ondernemen en op drie cruciale vlakken winst te boeken.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAntwerp, BelgiumHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“We are planning the path to climate neutrality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBilzen, BelgiumHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Inesco is een Esco (Energy Service Company).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchDour, BelgiumHQ recorded Nov 6, 20261-108 contacts →

Exact match

“E-nova est un bureau d’ingénieurs experts dans la performance énergétique des bâtiments, les énergies renouvelables et l'utilisation rationnelle de l'énergie.”

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

Showing 25 of 89 energy efficiency technology companies based in Belgium

See the full list, filter by size, metro and specialty, and access 416 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficiency technology companies based in Belgium at a glance

As of Nov 6, 2026
45.2%Verified-email coverage
10.3Average contacts per company
1-10Median size (employees)
4.5%Largest-city concentration · Ghent
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
53
11-50
29
51-200
5
201-500
2

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 89 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 efficiency technology 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 416 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 “energy efficiency technology companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 89 company matches for energy efficiency technology 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?

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

Which city has the most energy efficiency technology companies?

Ghent leads with 4 company records, followed by Brussels (3) and Kontich (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 416 professional contacts with verified work emails tracked across these 89 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.