Company lists · Data refreshed November 2026

Top 25 Environmental sustainability consulting firms based in Belgium

Name: Environmental sustainability consulting firms based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 295 companies tracked

RevenueBase identified 295 company matches for environmental sustainability consulting firms associated with Belgium as of November 2026 and tracks 2,643 professional contacts across them, including 1,353 with verified work emails. Brussels is the largest hub.

This list covers company matches for environmental sustainability consulting firms 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 5, 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 5, 2026 How this list was built

295Companies

2,643Contacts tracked

1,353Verified emails

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The 25 largest environmental sustainability consulting firms based in Belgium

Ranked by team size

Top 25 of 295 company matches for environmental sustainability consulting firms based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Antea Group Belgium	Exact match	Antwerp, BelgiumHQ recorded Nov 5, 2026	201-500	227 contacts →
	Exact match “Antea Group is an international consulting and engineering firm, specializing in full-service solutions in the fields of environment, infrastructure, public space, and water.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Trevi NV	Exact match	Gentbrugge, BelgiumHQ recorded Nov 5, 2026	51-200	104 contacts →
	Exact match “Trevi Environmental Solutions is a Belgian environmental technology company.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	ENCON	Exact match	Bilzen, BelgiumHQ recorded Nov 5, 2026	51-200	100 contacts →
	Exact match “Encon supports businesses as an independent agency with creative and innovative solutions in their transition to become more sustainable.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	RSK Benelux BV	Exact match	Houthalen, BelgiumHQ recorded Nov 5, 2026	51-200	92 contacts →
	Exact match “RSK Benelux bvba is an evolving and innovative environmental consultancy with 8 offices in Belgium.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Tauw Belgium	Exact match	Leuven (wijgmaal), BelgiumHQ recorded Nov 5, 2026	51-200	82 contacts →
	Exact match “We shape a vital living environment.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	BOPRO	Exact match	Ghent, BelgiumHQ recorded Nov 5, 2026	51-200	65 contacts →
	Exact match “In forty years Bopro has emerged into a solid, renowned company specialised in Sustainable Real Estate Development, Project Management and Consultancy services in Europe.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Climact	Exact match	Brussels, BelgiumHQ recorded Nov 5, 2026	11-50	57 contacts →
	Exact match “CLIMACT empowers organizations, cities and public authorities to understand climate change and to achieve a zero-carbon sustainable society by 2050.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Emelia	Exact match	Gentbrugge, BelgiumHQ recorded Nov 5, 2026	51-200	55 contacts →
	Exact match “Emelia is the Belgian study and consultancy firm resulting from the merger of BOVA ENVIRO+ and Esher.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	ICEDD	Exact match	Namur, BelgiumHQ recorded Nov 5, 2026	11-50	49 contacts →
	Exact match “Our background The Institut de Conseil et d'Etudes en Développement Durable (Institute for Consultancy and Studies in Sustainable Development) was founded in 1961 as a non-profit…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Sher Ingénieurs-Conseils	Exact match	Vedrin, BelgiumHQ recorded Nov 5, 2026	11-50	43 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Broptimize Energy	Exact match	Remicourt, BelgiumHQ recorded Nov 5, 2026	51-200	42 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 5, 2026 · View company records in RevenueBase
12	Sureal	Exact match	Brussels, BelgiumHQ recorded Nov 5, 2026	11-50	39 contacts →
	Exact match “SuReal is an independent firm of engineer-architects and engineers with expertise in Integrated Sustainability in the real estate sector.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Consultes	Exact match	Zwevegem, BelgiumHQ recorded Nov 5, 2026	11-50	30 contacts →
	Exact match “Consultes is een allround partner voor bedrijven op vlak van milieu, preventie, energie en duurzaamheid.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	ORA Group	Exact match	Wevelgem, BelgiumHQ recorded Nov 5, 2026	11-50	29 contacts →
	Exact match “Waarom kiezen voor de ORA Group?” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Sustenuto	Exact match	Brussels, BelgiumHQ recorded Nov 5, 2026	11-50	29 contacts →
	Exact match “Sustenuto is a strategic consulting firm that helps organisations make a difference in society by integrating sustainability at the core of their business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Studibo	Exact match	Merelbeke, BelgiumHQ recorded Nov 5, 2026	501-1,000	29 contacts →
	Exact match “Studibo is a specialist in multidisciplinary solutions and certification.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	RDC Environment	Exact match	Brussels, BelgiumHQ recorded Nov 5, 2026	11-50	28 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	DR EA M	Exact match	Pont-à-celles, BelgiumHQ recorded Nov 5, 2026	11-50	28 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	SLO	Exact match	Brussels, BelgiumHQ recorded Nov 5, 2026	11-50	22 contacts →
	Exact match “In a time of ecological challenges and economic uncertainty, businesses play a pivotal role in keeping society stable.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Sustainablepublicaffairs	Exact match	Brussels, BelgiumHQ recorded Nov 5, 2026	11-50	22 contacts →
	Exact match “SustainablePublicAffairs delivers policy-driven growth for sustainable business cases.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	BLEEN	Exact match	Brussels, BelgiumHQ recorded Nov 5, 2026	11-50	22 contacts →
	Exact match “World's gone nuts.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Raco By Studibo	Exact match	Heusden-zolder, BelgiumHQ recorded Nov 5, 2026	11-50	21 contacts →
	Exact match “Bij Raco by Studibo ondersteunen we bouwprojecten met studies van technische installaties, advies en projectbegeleiding.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Beel Architecten	Exact match	Ghent, BelgiumHQ recorded Nov 5, 2026	11-50	19 contacts →
	Exact match “In the early 80s Stéphane Beel founded his own architectural office.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Research And Solutions	Exact match	Strombeek-bever, BelgiumHQ recorded Nov 5, 2026	11-50	18 contacts →
	Exact match “Research & Solutions BVBA, kortweg RESOL, is een professioneel en onafhankelijk adviesbureau inzake Veiligheid, Milieu, Energie en Kwaliteit.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Denercon	Exact match	Berchem, BelgiumHQ recorded Nov 5, 2026	11-50	17 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 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental sustainability consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 295 environmental sustainability consulting firms based in Belgium

See the full list, filter by size, metro and specialty, and access 1,353 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental sustainability consulting firms based in Belgium at a glance

As of Nov 5, 2026

51.2%Verified-email coverage

9.0Average contacts per company

1-10Median size (employees)

16.3%Largest-city concentration · Brussels

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

219

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 295 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 “environmental sustainability consulting firms” 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 1,353 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 5, 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.

Environmental sustainability consulting firms by metro

Environmental sustainability consulting firms in Brussels48

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 “environmental sustainability consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental sustainability consulting firms are there based in Belgium?

RevenueBase identified 295 company matches for environmental sustainability consulting firms 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?

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

Which city has the most environmental sustainability consulting firms?

Brussels leads with 48 company records, followed by Antwerp (19) and Ghent (14).

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 1,353 professional contacts with verified work emails tracked across these 295 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 5, 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.