Company lists · Data refreshed September 2026

Top 25 Building performance contractors based in Belgium

Name: Building performance contractors based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 162 companies tracked

RevenueBase identified 162 building performance contractors headquartered in Belgium as of September 2026 and tracks 6,394 professional contacts across them, including 2,228 with verified work emails. Bruxelles is the largest hub.

This list covers building performance contractors headquartered in Belgium, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

162Companies

6,394Contacts tracked

2,228Verified emails

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The 25 largest building performance contractors based in Belgium

Ranked by team size

Top 25 of 162 building performance contractors based in Belgium, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building performance contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Equans Belux	Indirect evidence	Brussels, BelgiumHQ checked Sep 16, 2026	5,001-10,000	5,297 contacts →
	Indirect evidence “What if you could use your talent to contribute to the great challenges of tomorrow?” Source: RevenueBase Database · checked Sep 16, 2026
2	Reno Energy	Indirect evidence	Liège (angleur), BelgiumHQ checked Sep 16, 2026	51-200	106 contacts →
	Indirect evidence “Reno Energy est une entreprise spécialisée dans le secteur de la rénovation énergétique mais aussi dans la nouvelle construction.” Source: RevenueBase Database · checked Sep 16, 2026
3	Deplasse	Indirect evidence	Watermael-boitsfort, BelgiumHQ checked Sep 16, 2026	51-200	74 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
4	The Energy Circle	Indirect evidence	Hasselt, BelgiumHQ checked Sep 16, 2026	201-500	40 contacts →
	Indirect evidence “Van onderhoud & monitoring, elektrische installaties & groene stroom, tot waterbeheer & HVAC-systemen: The Energy Circle heeft alle expertise in huis om grote gebouwen en…” Source: RevenueBase Database · checked Sep 16, 2026
5	AIR Ambiance SA	Indirect evidence	Battice, BelgiumHQ checked Sep 16, 2026	11-50	28 contacts →
	Indirect evidence “ÉCOLOGIE - ÉCONOMIE - QUALITÉ Air Ambiance a pour mission: de répondre aux besoins de chauffage, de climatisation, de réfrigération et de ventilation en proposant un service…” Source: RevenueBase Database · checked Sep 16, 2026
6	QUITO	Partial evidence	Noville-les-bois, BelgiumHQ checked Sep 16, 2026	1-10	27 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
7	Coretec Energy	Partial evidence	Angleur, BelgiumHQ checked Sep 16, 2026	11-50	26 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
8	Misko Ingénieurs-Conseils	Indirect evidence	Bastogne, BelgiumHQ checked Sep 16, 2026	11-50	25 contacts →
	Indirect evidence “Le bureau Misko ingénieurs-conseils est spécialisé dans les études énergétiques et techniques du bâtiment.” Source: RevenueBase Database · checked Sep 16, 2026
9	Delpower	Indirect evidence	Thimister-clermont, BelgiumHQ checked Sep 16, 2026	11-50	24 contacts →
	Indirect evidence “DELPOWER is an energy efficiency engineering company dedicated to optimising energy costs for tertiary and industrial customers.” Source: RevenueBase Database · checked Sep 16, 2026
10	Group VHC	Indirect evidence	Overijse, BelgiumHQ checked Sep 16, 2026	51-200	24 contacts →
	Indirect evidence “Group VHC zorgt al meer dan 25 jaar voor slimme oplossingen in verwarming, koeling, ventilatie en zonne energie.” Source: RevenueBase Database · checked Sep 16, 2026
11	Ecopuur	Indirect evidence	9850, BelgiumHQ checked Sep 16, 2026	11-50	23 contacts →
	Indirect evidence “Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.” Source: RevenueBase Database · checked Sep 16, 2026
12	Soltis	Indirect evidence	Evere, BelgiumHQ checked Sep 16, 2026	11-50	23 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
13	Energieconcepten	Indirect evidence	Arendonk, BelgiumHQ checked Sep 16, 2026	11-50	19 contacts →
	Indirect evidence “Energieconcepten biedt duurzame energieoplossingen voor het verwarmen, ventileren, verlichten, sturen… van gebouwen.” Source: RevenueBase Database · checked Sep 16, 2026
14	EMAZE	Indirect evidence	Gent, BelgiumHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence “Emaze provides actionable energy advice for the industrial, service and public sector: Energy management - Implement an energy management system (e.g.” Source: RevenueBase Database · checked Sep 16, 2026
15	Techem Belgium - Caloribel	Indirect evidence	Sint-jans-molenbeek, BelgiumHQ checked Sep 16, 2026	51-200	18 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
16	Isolution	Indirect evidence	Namur, BelgiumHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
17	Alfasun	Indirect evidence	Ninove, BelgiumHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “nergie zonder zorgen Ga je bouwen?” Source: RevenueBase Database · checked Sep 16, 2026
18	Mijnepb	Indirect evidence	Gent, BelgiumHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “MijnEPB helpt architect en bouwheer met de nodige engineering voor hun project.” Source: RevenueBase Database · checked Sep 16, 2026
19	Dnergy	Partial evidence	Brussels, BelgiumHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
20	Wattson NV	Indirect evidence	Ghent, BelgiumHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “Wattson maakt van gebouwen de gangmakers van de energietransitie.” Source: RevenueBase Database · checked Sep 16, 2026
21	Matriciel	Partial evidence	Louvain-la-neuve, BelgiumHQ checked Sep 16, 2026	11-50	15 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
22	A2e Bureau D'études	Partial evidence	Wavre, BelgiumHQ checked Sep 16, 2026	1-10	15 contacts →
	Partial evidence “Bureau spécialisé dans l’énergie et l’environnement- Energies renouvelables - Audit énergétique - Performance énergétique des bâtiments (PEB)- Techniques spéciales - Conception…” Source: RevenueBase Database · checked Sep 16, 2026
23	Denercon	Indirect evidence	Berchem, BelgiumHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Denercon is an energy consulting company created by Michaël Deneve and is based in Antwerp, Belgium.” Source: RevenueBase Database · checked Sep 16, 2026
24	Exergie Part Of UEG	Indirect evidence	Beringen, BelgiumHQ checked Sep 16, 2026	11-50	13 contacts →
	Indirect evidence “Wij bij Exergie, willen de wereld verduurzamen.” Source: RevenueBase Database · checked Sep 16, 2026
25	Ensatec	Indirect evidence	Genk, BelgiumHQ checked Sep 16, 2026	1-10	12 contacts →
	Indirect evidence “Wij helpen jouw bedrijf van A tot Z om maatschappelijk verantwoord te ondernemen en op drie cruciale vlakken winst te boeken.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: building performance contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names building performance contractors.
Partial evidence: Its own public description names part of building performance contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building performance contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 162 building performance contractors based in Belgium

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Building performance contractors based in Belgium at a glance

As of Sep 16, 2026

34.8%Verified-email coverage

39.5Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · Bruxelles

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 162 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among building performance contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Belgium whose own description of what they do matches “building performance contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names building performance contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among building performance contractors, and records with no verified work email. Companies headquartered outside Belgium are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 2,228 across the full list. 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 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names building performance contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many building performance contractors are there based in Belgium?

RevenueBase identified 162 building performance contractors headquartered in Belgium as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Equans Belux, headquartered in Belgium, tops this list with the largest team on record.

Which city has the most building performance contractors?

Bruxelles leads with 5 headquartered companies, followed by Liege (4) and Arendonk (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,228 verified decision-maker contacts tracked across these 162 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 Smart Search, 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.