Company lists · Data refreshed September 2026

Top 25 Sustainable design consultants based in Belgium

Name: Sustainable design consultants based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 428 companies tracked

RevenueBase identified 428 sustainable design consultants headquartered in Belgium as of September 2026 and tracks 3,549 professional contacts across them, including 1,530 with verified work emails. Brussels is the largest hub.

This list covers sustainable design consultants 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 22, 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 22, 2026 86% judged on-target in blind review

428Companies

3,549Contacts tracked

1,530Verified emails

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The 25 largest sustainable design consultants based in Belgium

Ranked by team size

Top 25 of 428 sustainable design consultants based in Belgium, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable design consultants: 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	B2ai Architects	Partial evidence	Brussels, BelgiumHQ checked Sep 22, 2026	51-200	130 contacts →
	Partial evidence “B2Ai stands for a multidisciplinary team of 140 architects, structural + technical engineers, interior designers & urban planners, based in Brussels, Ghent, Roeselare & Antwerp…” Source: RevenueBase Database · checked Sep 22, 2026
2	AESA	Partial evidence	Brussels, BelgiumHQ checked Sep 22, 2026	51-200	128 contacts →
	Partial evidence “AESA is a leading European management consultancy, providing technical assistance and project management services in Low and Middle income countries as well as in Transition…” Source: RevenueBase Database · checked Sep 22, 2026
3	Verelst	Indirect evidence	Putte, BelgiumHQ checked Sep 22, 2026	201-500	115 contacts →
	Indirect evidence “Vanuit drie centrale pijlers (Wonen, Bouw en Atelier) ontwikkelen, bouwen, renoveren en produceren we samen met onze 350 enthousiaste collega’s duurzame, functionele en…” Source: RevenueBase Database · checked Sep 22, 2026
4	Archipelago Architects	Partial evidence	Bruxelles, BelgiumHQ checked Sep 22, 2026	51-200	114 contacts →
	Partial evidence “archipelago: creating contextual and sustainable architecture to better live, care, work and learn – we bring life to your projects with a unique and sensitive methodical…” Source: RevenueBase Database · checked Sep 22, 2026
5	ENCON	Partial evidence	Bilzen, BelgiumHQ checked Sep 22, 2026	51-200	104 contacts →
	Partial evidence “Encon supports businesses as an independent agency with creative and innovative solutions in their transition to become more sustainable.” Source: RevenueBase Database · checked Sep 22, 2026
6	Trevi NV	Indirect evidence	Gentbrugge, BelgiumHQ checked Sep 22, 2026	51-200	101 contacts →
	Indirect evidence “Trevi Environmental Solutions is a Belgian environmental technology company.” Source: RevenueBase Database · checked Sep 22, 2026
7	Tauw Belgium	Indirect evidence	Leuven (wijgmaal), BelgiumHQ checked Sep 22, 2026	51-200	80 contacts →
	Indirect evidence “We shape a vital living environment.” Source: RevenueBase Database · checked Sep 22, 2026
8	Deplasse	Indirect evidence	Watermael-boitsfort, BelgiumHQ checked Sep 22, 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 22, 2026
9	Bureau D Etudes Lemaire	Indirect evidence	Grâce-hollogne, BelgiumHQ checked Sep 22, 2026	51-200	74 contacts →
	Indirect evidence “Le bureau d’études Lemaire a été fondé par Frédéric Lemaire, ingénieur civil en construction.” Source: RevenueBase Database · checked Sep 22, 2026
10	M-Gineers	Indirect evidence	Leuven, BelgiumHQ checked Sep 22, 2026	51-200	67 contacts →
	Indirect evidence “M-gineers (formerly known as Macobo-Stabo) Smart engineering op het ritme van een maatschappij in beweging.” Source: RevenueBase Database · checked Sep 22, 2026
11	Climact	Partial evidence	Brussels, BelgiumHQ checked Sep 22, 2026	11-50	64 contacts →
	Partial evidence “CLIMACT empowers organizations, cities and public authorities to understand climate change and to achieve a zero-carbon sustainable society by 2050.” Source: RevenueBase Database · checked Sep 22, 2026
12	Bureau Bouwtechniek NV	Indirect evidence	Antwerpen, BelgiumHQ checked Sep 22, 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 22, 2026
13	BOPRO	Strong evidence	Ghent, BelgiumHQ checked Sep 22, 2026	51-200	63 contacts →
	Strong evidence “In forty years Bopro has emerged into a solid, renowned company specialised in Sustainable Real Estate Development, Project Management and Consultancy services in Europe.” Source: RevenueBase Database · checked Sep 22, 2026
14	Broptimize Energy	Indirect evidence	Remicourt, BelgiumHQ checked Sep 22, 2026	51-200	51 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
15	Quarteom	Indirect evidence	Brussels, BelgiumHQ checked Sep 22, 2026	51-200	41 contacts →
	Indirect evidence “With more than 10 years of experience in engineering projects ranging from long-term missions to more complex assignments, we offer a 360° approach and personalised follow-up.” Source: RevenueBase Database · checked Sep 22, 2026
16	Bureau D'études A Concept	Indirect evidence	Liège, BelgiumHQ checked Sep 22, 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 22, 2026
17	Sher Ingénieurs-Conseils	Partial evidence	Vedrin, BelgiumHQ checked Sep 22, 2026	11-50	38 contacts →
	Partial evidence “SHER Ingénieurs-Conseils, a Belgian engineering consultancy office and member of the Artelia Group, provides its services worldwide for projects related to water, human and animal…” Source: RevenueBase Database · checked Sep 22, 2026
18	MK Engineering	Partial evidence	Bruxelles, BelgiumHQ checked Sep 22, 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 22, 2026
19	Consultes	Indirect evidence	Zwevegem, BelgiumHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence “Consultes is een allround partner voor bedrijven op vlak van milieu, preventie, energie en duurzaamheid.” Source: RevenueBase Database · checked Sep 22, 2026
20	Groep Infrabo	Strong evidence	Westerlo, BelgiumHQ checked Sep 22, 2026	11-50	33 contacts →
	Strong evidence “With over 40 years of experience in building technologies, sustainability, infrastructure, and water management, Groep Infrabo is an independent engineering and consultancy firm…” Source: RevenueBase Database · checked Sep 22, 2026
21	RDC Environment	Partial evidence	Brussels, BelgiumHQ checked Sep 22, 2026	11-50	31 contacts →
	Partial evidence “Our mission is to support decision-making towards a sustainable world." – Bernard De Caevel, Founder of RDC Environment For more than 30 years, RDC Environment has been helping…” Source: RevenueBase Database · checked Sep 22, 2026
22	DR EA M	Indirect evidence	Pont-à-celles, BelgiumHQ checked Sep 22, 2026	11-50	28 contacts →
	Indirect evidence “DR(EA)²M est un bureau d’études spécialisé dans les matières du développement territorial, de l’aménagement urbain et paysager, de l’environnement, de l’architecture et de…” Source: RevenueBase Database · checked Sep 22, 2026
23	Bast Architects & Engineers	Indirect evidence	Gent, BelgiumHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect 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 22, 2026
24	SIA Société Internationale D'architecture S.A	Indirect evidence	BelgiumHQ checked Sep 22, 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 22, 2026
25	Sustenuto	Partial evidence	Brussels, BelgiumHQ checked Sep 22, 2026	11-50	24 contacts →
	Partial evidence “Sustenuto is a strategic consulting firm that helps organisations make a difference in society by integrating sustainability at the core of their business.” Source: RevenueBase Database · checked Sep 22, 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: sustainable design consultants. 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 sustainable design consultants.
Partial evidence: Its own public description names part of sustainable design consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable design consultants. 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 428 sustainable design consultants based in Belgium

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Sustainable design consultants based in Belgium at a glance

As of Sep 22, 2026

43.1%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

7.5%Largest-city concentration · Brussels

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

318

11-50

51-200

201-500

501-1,000

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 428 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 sustainable design consultants, 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 “sustainable design consultants”. 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 sustainable design consultants), 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 sustainable design consultants, 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, 1,530 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 22, 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.

Sustainable design consultants by metro

Sustainable design consultants in Brussels32

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 sustainable design consultants, 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 sustainable design consultants are there based in Belgium?

RevenueBase identified 428 sustainable design consultants 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?

B2ai Architects, headquartered in Brussels, tops this list with the largest team on record.

Which city has the most sustainable design consultants?

Brussels leads with 32 headquartered companies, followed by Bruxelles (15) and Antwerpen (12).

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 1,530 verified decision-maker contacts tracked across these 428 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 22, 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.