Company lists · Data refreshed September 2026

Top 25 Net zero energy building companies based in Belgium

Name: Net zero energy building companies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 105 companies tracked

RevenueBase identified 105 net zero energy building companies headquartered in Belgium as of September 2026 and tracks 836 professional contacts across them, including 342 with verified work emails. Gent is the largest hub.

This list covers net zero energy building companies 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 17, 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 17, 2026 86% judged on-target in blind review

105Companies

836Contacts tracked

342Verified emails

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The 25 largest net zero energy building companies based in Belgium

Ranked by team size

Top 25 of 105 net zero energy building companies based in Belgium, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to net zero energy building companies: 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	Reno Energy	Partial evidence	Liège (angleur), BelgiumHQ checked Sep 17, 2026	51-200	106 contacts →
	Partial 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 17, 2026
2	Bostoen NV	Indirect evidence	Sint-denijs-westrem, BelgiumHQ checked Sep 17, 2026	201-500	69 contacts →
	Indirect evidence “Missie Bostoen Group wil op een no nonsense manier haar maatschappelijke verantwoordelijkheid nemen voor een betere wereld voor onze kinderen en kleinkinderen, door het wonen CO²…” Source: RevenueBase Database · checked Sep 17, 2026
3	Bureau Bouwtechniek NV	Indirect evidence	Antwerpen, BelgiumHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “We inspireren en helpen om in een menselijke sfeer samen gebouwen juister te ontwerpen, bouwen en onderhouden.” Source: RevenueBase Database · checked Sep 17, 2026
4	A2m Architecture	Partial evidence	Brussels, BelgiumHQ checked Sep 17, 2026	51-200	48 contacts →
	Partial evidence “A2M is an international practice driven by an ardent belief in the possibilities of modern architecture and a keen curiosity about building physics, our interdisciplinary team…” Source: RevenueBase Database · checked Sep 17, 2026
5	Bureau D'études A Concept	Indirect evidence	Liège, BelgiumHQ checked Sep 17, 2026	11-50	38 contacts →
	Indirect evidence “A+ Concept est un bureau d'études composé d'experts énergétiques et ingénieurs spécialisés dans les techniques du bâtiment.” Source: RevenueBase Database · checked Sep 17, 2026
6	MK Engineering	Partial evidence	Bruxelles, BelgiumHQ checked Sep 17, 2026	11-50	35 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
7	Bast Architects & Engineers	Partial evidence	Gent, BelgiumHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “We are in service to our clients to help them with the conception and building of bio-ecological buildings with following aspects - healthy - natural building materials - low- or…” Source: RevenueBase Database · checked Sep 17, 2026
8	SIA Société Internationale D'architecture S.A	Indirect evidence	BelgiumHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence “SIA Architects désigne la Société Internationale d’Architecture, basée en Belgique et au Grand-Duché de Luxembourg, aussi active à l’étranger.” Source: RevenueBase Database · checked Sep 17, 2026
9	Istema NV	Partial evidence	Gent, BelgiumHQ checked Sep 17, 2026	11-50	20 contacts →
	Partial evidence “ISTEMA is een gespecialiseerd ingenieurs- en studiebureau voor technieken en energie in gebouwen.” Source: RevenueBase Database · checked Sep 17, 2026
10	Ts-Construct	Indirect evidence	Jodoigne, BelgiumHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Construction de maisons passives, ossature bois, basse consommation.” Source: RevenueBase Database · checked Sep 17, 2026
11	Cenergie	Strong evidence	Antwerpen, BelgiumHQ checked Sep 17, 2026	11-50	19 contacts →
	Strong evidence “CENERGIE delivers consulting, design, engineering and project management services for energy-efficient and sustainable buildings during their entire lifecycle.” Source: RevenueBase Database · checked Sep 17, 2026
12	Matriciel	Partial evidence	Louvain-la-neuve, BelgiumHQ checked Sep 17, 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 17, 2026
13	Robuust Architectuur&onderzoek Bvba	Indirect evidence	Gent, BelgiumHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence “ROBUUST architectuur & onderzoek stands for a robust project approach in fields of architectural, structural and technical design.” Source: RevenueBase Database · checked Sep 17, 2026
14	Exergie Part Of UEG	Indirect evidence	Beringen, BelgiumHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Wij bij Exergie, willen de wereld verduurzamen.” Source: RevenueBase Database · checked Sep 17, 2026
15	K&w Construction NV	Partial evidence	Wortegem-petegem, BelgiumHQ checked Sep 17, 2026	51-200	12 contacts →
	Partial evidence “K&W Construction \| Building the Future of Sustainable Living We’re a class D7 construction company based in Belgium, with a dedicated team of 20 employees and over 40 skilled…” Source: RevenueBase Database · checked Sep 17, 2026
16	Objectif Zéro	Indirect evidence	Gembloux, BelgiumHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “Objectif Zéro est un centre d'expertise et de conseil pour la sobriété des constructions.” Source: RevenueBase Database · checked Sep 17, 2026
17	3bouw	Indirect evidence	Westerlo, BelgiumHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Kwaliteitsvolle houtskeletbouw, 100% op maat.” Source: RevenueBase Database · checked Sep 17, 2026
18	Bureau D'architectes Desmedt Purnelle	Indirect evidence	Sombreffe, BelgiumHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “Notre bureau est composé de deux ingénieurs civils architectes Jérôme Desmedt et Céline Purnelle.” Source: RevenueBase Database · checked Sep 17, 2026
19	Ariade	Partial evidence	Bruxelles (uccle), BelgiumHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial evidence “Ariade Architecte is a company involdved in archtecture, sustainability and hign performance buildings.” Source: RevenueBase Database · checked Sep 17, 2026
20	NEW Tech Projects	Indirect evidence	Tongeren, BelgiumHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “New Tech Projects staat voor 'new technology project development'.” Source: RevenueBase Database · checked Sep 17, 2026
21	Bouwbedrijf Vandersmissen NV	Indirect evidence	Herk-de-stad, BelgiumHQ checked Sep 17, 2026	51-200	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
22	EA Architecten EN Ingenieurs	Partial evidence	Gent, BelgiumHQ checked Sep 17, 2026	1-10	7 contacts →
	Partial evidence “Architecten- en studiebureau voor bio-ecologisch, energiezuinig en integraal duurzaam bouwen.” Source: RevenueBase Database · checked Sep 17, 2026
23	E-Nova	Indirect evidence	Dour, BelgiumHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “E-nova est un bureau d’ingénieurs experts dans la performance énergétique des bâtiments, les énergies renouvelables et l'utilisation rationnelle de l'énergie.” Source: RevenueBase Database · checked Sep 17, 2026
24	Wood Architects	Strong evidence	Aalter, BelgiumHQ checked Sep 17, 2026	1-10	7 contacts →
	Strong evidence “Wood Architects are for many years specialized in energy-efficient and sustainable building.” Source: RevenueBase Database · checked Sep 17, 2026
25	DE Noordboom	Partial evidence	Ronse, BelgiumHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “De Noordboom bouwt energiezuinige woningen met hernieuwbare grondstoffen uit duurzame ontginning.” Source: RevenueBase Database · checked Sep 17, 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: net zero energy building companies. 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 net zero energy building companies.
Partial evidence: Its own public description names part of net zero energy building companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name net zero energy building companies. 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 105 net zero energy building companies based in Belgium

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Net zero energy building companies based in Belgium at a glance

As of Sep 17, 2026

40.9%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

4.8%Largest-city concentration · Gent

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 105 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 net zero energy building companies, 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 “net zero energy building companies”. 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 net zero energy building companies), 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 net zero energy building companies, 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, 342 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 17, 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 net zero energy building companies, 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 net zero energy building companies are there based in Belgium?

RevenueBase identified 105 net zero energy building companies 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?

Reno Energy, headquartered in Liege, tops this list with the largest team on record.

Which city has the most net zero energy building companies?

Gent leads with 5 headquartered companies, followed by Antwerpen (4) and Bruxelles (4).

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 342 verified decision-maker contacts tracked across these 105 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 17, 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.