Company lists · Data refreshed September 2026

Top 25 Building energy retrofit consultants based in Belgium

RevenueBase identified 152 company matches for building energy retrofit consultants associated with Belgium as of September 2026 and tracks 950 professional contacts across them, including 374 with verified work emails. Ghent is the largest hub.

This list covers company matches for building energy retrofit consultants 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 September 27, 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 Sep 27, 2026 How this list was built
152Companies
950Contacts tracked
374Verified emails
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The 25 largest building energy retrofit consultants based in Belgium

Ranked by team size
Top 25 of 152 company matches for building energy retrofit consultants based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchLiège (angleur), BelgiumHQ recorded Sep 27, 202651-200106 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 · Sep 27, 2026 · View company records in RevenueBase
2Exact matchWatermael-boitsfort, BelgiumHQ recorded Sep 27, 202651-20074 contacts →

Exact match

“Deplasse est un bureau d’études et de conseils qui offre une vision globale et transversale sur la transition énergétique incluant expertise technique, approche patrimoniale et…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchLiège, BelgiumHQ recorded Sep 27, 202611-5038 contacts →

Exact match

“A+ Concept est un bureau d'études composé d'experts énergétiques et ingénieurs spécialisés dans les techniques du bâtiment.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchBrussels, BelgiumHQ recorded Sep 27, 202611-5035 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 · Sep 27, 2026 · View company records in RevenueBase
5Exact matchBastogne, BelgiumHQ recorded Sep 27, 202611-5025 contacts →

Exact match

“Le bureau Misko ingénieurs-conseils est spécialisé dans les études énergétiques et techniques du bâtiment.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchThimister-clermont, BelgiumHQ recorded Sep 27, 202611-5024 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 · Sep 27, 2026 · View company records in RevenueBase
7Exact match9850, BelgiumHQ recorded Sep 27, 202611-5023 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchGhent, BelgiumHQ recorded Sep 27, 202611-5020 contacts →

Exact match

“ISTEMA is een gespecialiseerd ingenieurs- en studiebureau voor technieken en energie in gebouwen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchAntwerp, BelgiumHQ recorded Sep 27, 202611-5019 contacts →

Exact match

“CENERGIE delivers consulting, design, engineering and project management services for energy-efficient and sustainable buildings during their entire lifecycle.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchGhent, BelgiumHQ recorded Sep 27, 202611-5018 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 · Sep 27, 2026 · View company records in RevenueBase
11Exact matchNinove, BelgiumHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“nergie zonder zorgen Ga je bouwen?”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchAntwerp, BelgiumHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“Bij Peritas bieden we onze klanten niet alleen betrouwbare, energie-efficiënte oplossingen voor hun engineeringprojecten, maar zetten we ook in op innovatie en efficiëntie.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchGhent, BelgiumHQ recorded Sep 27, 202611-5016 contacts →

Exact match

“MijnEPB helpt architect en bouwheer met de nodige engineering voor hun project.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchGhent, BelgiumHQ recorded Sep 27, 202611-5016 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLouvain-la-neuve, BelgiumHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“L'activité de la société MATRIciel vise une MEILLEURE PERFORMANCE ENERGETIQUE ET ENVIRONNEMENTALE DES BATIMENTS dans le cadre du développement durable par une participation active…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchWavre, BelgiumHQ recorded Sep 27, 20261-1015 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 · Sep 27, 2026 · View company records in RevenueBase
17Exact matchBerchem, BelgiumHQ recorded Sep 27, 202611-5014 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 · Sep 27, 2026 · View company records in RevenueBase
18Exact matchBeringen, BelgiumHQ recorded Sep 27, 202611-5013 contacts →

Exact match

“Wij bij Exergie, willen de wereld verduurzamen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchBalegem, BelgiumHQ recorded Sep 27, 202611-5012 contacts →

Exact match

“Jarenlange ervaring in EPB- en EPC- verslaggeving.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchBrussels, BelgiumHQ recorded Sep 27, 20261-1012 contacts →

Exact match

“Que vous soyez futur acquéreur, propriétaire d’une maison, co-propriétaire dans un immeubles à appartements ou encore gestionnaire de biens immobiliers, ImmoPass apporte de la…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchMechelen, BelgiumHQ recorded Sep 27, 20261-1012 contacts →

Exact match

“Hansom specializes in energy consulting and approved by the Flemish government to deliver energy audits tax deductible (EAP) and legally mandatory energy performance certificates…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchMechelen, BelgiumHQ recorded Sep 27, 202611-5011 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchGembloux, BelgiumHQ recorded Sep 27, 20261-1011 contacts →

Exact match

“Objectif Zéro est un centre d'expertise et de conseil pour la sobriété des constructions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchGenk, BelgiumHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“Bij B-EA (Bouw & Energie Advies) ondersteunen we bouwheren, architecten en ontwikkelaars met praktisch energieadvies voor nieuwbouw- en renovatieprojecten.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchNivelles, BelgiumHQ recorded Sep 27, 20261-1010 contacts →

Exact match

“BUREAU D'INGENIERIE SPECIALISE EN PERFORMANCE ENERGETIQUE DES BATIMENTS.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 152 building energy retrofit consultants based in Belgium

See the full list, filter by size, metro and specialty, and access 374 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building energy retrofit consultants based in Belgium at a glance

As of Sep 27, 2026
39.4%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
5.3%Largest-city concentration · Ghent
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
123
11-50
24
51-200
3

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 152 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 “building energy retrofit consultants” 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 374 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 September 27, 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 “building energy retrofit consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building energy retrofit consultants are there based in Belgium?

RevenueBase identified 152 company matches for building energy retrofit consultants associated with Belgium as of September 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 building energy retrofit consultants?

Ghent leads with 8 company records, followed by Brussels (7) and Liege (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 374 professional contacts with verified work emails tracked across these 152 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 September 27, 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.