Company lists · Data refreshed November 2026

Top 25 Sustainable energy advisors based in Belgium

RevenueBase identified 148 company matches for sustainable energy advisors associated with Belgium as of November 2026 and tracks 1,045 professional contacts across them, including 429 with verified work emails. Brussels is the largest hub.

This list covers company matches for sustainable energy advisors 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
148Companies
1,045Contacts tracked
429Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest sustainable energy advisors based in Belgium

Ranked by team size
Top 25 of 148 company matches for sustainable energy advisors 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 matchHerent, BelgiumHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“EnergyKing werd in 2013 opgericht door twee ingenieurs: Lucas & Wiet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLokeren, BelgiumHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Zonnepanelen, batterijen, laadinfrastructuur slimme sturingen en warmte- en koeloplossingen?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchRemicourt, BelgiumHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“Fondée en 2016 par deux frères, Sébastien et Michael Menu et issue de l'Université de Liège, Broptimize est aujourd'hui la référence en matière d'accompagnement dans la transition…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Bureau d'Etudes en Design Energétique du Bâtiment, MK Engineering s'est forgé une solide expérience en conception très basse énergie avec ses services de Conseil aux Architecte et…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBelgiumHQ recorded Nov 6, 2026501-1,00031 contacts →

Exact match

“We believe in the impact and power of energy within the green and sustainable environment, lived and realised by people and community.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchZaventem, BelgiumHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“We Green vise à réduire la dépendance de ses clients aux sources d'énergie non-durables afin de diminuer leurs émissions de carbone via des solutions énergétiques vertes et…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“With 35 years of experience, we unite over 90 members across 24 EU countries, representing more than 92 million citizens and a community of energy professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact 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
11Exact matchBarchon, BelgiumHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Chez Polarsun, nous concevons, installons et assurons le suivi de solutions énergétiques durables pour les particuliers, les entreprises et les collectivités.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchAntwerp, BelgiumHQ recorded Nov 6, 2026201-50021 contacts →

Exact match

“Helexia is your all-in-one partner for accelerating your energy transition.”

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 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
16Exact matchWavre, BelgiumHQ recorded Nov 6, 20261-1016 contacts →

Exact match

“Bureau spécialisé dans l’énergie et l’environnement- Energies renouvelables - Audit énergétique - Performance énergétique des bâtiments (PEB)- Techniques spéciales - Conception…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact 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
18Exact matchBeringen, BelgiumHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Wij bij Exergie, willen de wereld verduurzamen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact 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
20Exact matchOostende, BelgiumHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“AG Oostende - Energiehuis / Samen naar een energiezuinige, comfortabele en leefbare toekomst Bij AG Oostende - Energiehuis zetten we ons in om actief bij te dragen aan de strijd…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact 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
22Exact 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
23Exact matchMons, BelgiumHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Conscient que l'énergétique dans le bâtiment rencontre un triple enjeu : social, environnemental et économique, HOMECO se veut être un des acteurs principaux dans la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBrussels, BelgiumHQ recorded Nov 6, 20261-109 contacts →

Exact match

“The Sustainable Energy Finance Association (SEFA) is the European trade association for the sustainable energy industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGierle, BelgiumHQ recorded Nov 6, 202611-508 contacts →

Exact match

“AETEC maakt haar klanten baas over eigen energie Of de energiewereld steeds meer elektrisch wordt, is geen vraag meer, maar een zekerheid.”

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

Showing 25 of 148 sustainable energy advisors based in Belgium

See the full list, filter by size, metro and specialty, and access 429 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Sustainable energy advisors based in Belgium at a glance

As of Nov 6, 2026
41.1%Verified-email coverage
7.1Average contacts per company
1-10Median size (employees)
7.4%Largest-city concentration · Brussels
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
99
11-50
38
51-200
8
201-500
1
501-1,000
1

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 148 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 “sustainable energy advisors” 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 429 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 “sustainable energy advisors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable energy advisors are there based in Belgium?

RevenueBase identified 148 company matches for sustainable energy advisors 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?

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

Which city has the most sustainable energy advisors?

Brussels leads with 11 company records, followed by Antwerp (5) and Ghent (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 429 professional contacts with verified work emails tracked across these 148 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 148 sustainable energy advisors 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.