Company lists · Data refreshed September 2026

Top 25 Environmental management consultants based in Belgium

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 244 companies tracked

RevenueBase identified 244 environmental management consultants headquartered in Belgium as of September 2026 and tracks 2,695 professional contacts across them, including 937 with verified work emails. Brussels is the largest hub.

This list covers environmental management 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 28, 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 28, 2026 86% judged on-target in blind review

244Companies

2,695Contacts tracked

937Verified emails

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The 25 largest environmental management consultants based in Belgium

Ranked by team size

Top 25 of 244 environmental management consultants based in Belgium, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to environmental management 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	AESA	Strong evidence	Brussels, BelgiumHQ checked Sep 28, 2026	51-200	128 contacts →
	Strong 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 28, 2026
2	Trevi NV	Partial evidence	Gentbrugge, BelgiumHQ checked Sep 28, 2026	51-200	101 contacts →
	Partial evidence “Trevi Environmental Solutions is a Belgian environmental technology company.” Source: RevenueBase Database · checked Sep 28, 2026
3	RSK Benelux BV	Strong evidence	Houthalen, BelgiumHQ checked Sep 28, 2026	51-200	86 contacts →
	Strong evidence “RSK Benelux bvba is an evolving and innovative environmental consultancy with 8 offices in Belgium.” Source: RevenueBase Database · checked Sep 28, 2026
4	Sertius Environmental And Safety Services	Partial evidence	Wijgmaal, BelgiumHQ checked Sep 28, 2026	51-200	82 contacts →
	Partial evidence “Sertius and its multidisciplinary team offer their services in the fields of environment and security- Legal advices and administrative support: Practical advices regarding…” Source: RevenueBase Database · checked Sep 28, 2026
5	Tauw Belgium	Partial evidence	Leuven (wijgmaal), BelgiumHQ checked Sep 28, 2026	51-200	80 contacts →
	Partial evidence “We shape a vital living environment.” Source: RevenueBase Database · checked Sep 28, 2026
6	Cyclops	Partial evidence	Vilvoorde, BelgiumHQ checked Sep 28, 2026	51-200	68 contacts →
	Partial evidence “Cyclops offers to industrial companies complete engineering, procurement and project management (EPCM) services “from your first idea to start-up”.” Source: RevenueBase Database · checked Sep 28, 2026
7	Abo-Group Environment	Partial evidence	Gent, BelgiumHQ checked Sep 28, 2026	501-1,000	66 contacts →
	Partial evidence “ABO-Group Environment has developed into a cluster of integrated environmental companies specialized in testing and engineering in various sectors such as soil, environment…” Source: RevenueBase Database · checked Sep 28, 2026
8	Aries Consultants	Partial evidence	Bierges, BelgiumHQ checked Sep 28, 2026	11-50	48 contacts →
	Partial evidence “Créée en 1989 par l’architecte Luc-Georges Dubrulle, la société ARIES Consultants a été reprise en 2012 par Gilles Ledent et Christopher Goffard.” Source: RevenueBase Database · checked Sep 28, 2026
9	Abesco	Indirect evidence	Glabbeek, BelgiumHQ checked Sep 28, 2026	11-50	39 contacts →
	Indirect evidence “Bij ABESCO nemen we geen genoegen met theorie.” Source: RevenueBase Database · checked Sep 28, 2026
10	Intraco Consulting	Partial evidence	Blegny, BelgiumHQ checked Sep 28, 2026	11-50	36 contacts →
	Partial evidence “Grâce à nos consultants et à notre large réseau de spécialistes, nous avons développé une expertise de pointe dans une large gamme de services incluant des conseils en stratégie…” Source: RevenueBase Database · checked Sep 28, 2026
11	Consultes	Indirect evidence	Zwevegem, BelgiumHQ checked Sep 28, 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 28, 2026
12	Geolys	Indirect evidence	Ciney, BelgiumHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “Bureau d'études en environnement dans les secteurs de l'eau, du sol et de l'énergie.” Source: RevenueBase Database · checked Sep 28, 2026
13	WIELS	Indirect evidence	Zwevegem, BelgiumHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “Wiels is een adviesbureau met meer dan 30 jaar ervaring.” Source: RevenueBase Database · checked Sep 28, 2026
14	RDC Environment	Partial evidence	Brussels, BelgiumHQ checked Sep 28, 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 28, 2026
15	ORA Group	Indirect evidence	Wevelgem, BelgiumHQ checked Sep 28, 2026	11-50	26 contacts →
	Indirect evidence “Waarom kiezen voor de ORA Group?” Source: RevenueBase Database · checked Sep 28, 2026
16	Raco By Studibo	Indirect evidence	Heusden-zolder, BelgiumHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “Bij Raco by Studibo ondersteunen we bouwprojecten met studies van technische installaties, advies en projectbegeleiding.” Source: RevenueBase Database · checked Sep 28, 2026
17	Research And Solutions	Indirect evidence	Strombeek-bever, BelgiumHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “Research & Solutions BVBA, kortweg RESOL, is een professioneel en onafhankelijk adviesbureau inzake Veiligheid, Milieu, Energie en Kwaliteit.” Source: RevenueBase Database · checked Sep 28, 2026
18	SLO	Indirect evidence	Brussels, BelgiumHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “In a time of ecological challenges and economic uncertainty, businesses play a pivotal role in keeping society stable.” Source: RevenueBase Database · checked Sep 28, 2026
19	Ecobel	Partial evidence	Grez-doiceau, BelgiumHQ checked Sep 28, 2026	1-10	20 contacts →
	Partial evidence “Ecobel est une équipe de consultants spécialisés en environnement et en sécurité, et qui accompagnent clients et partenaires dans leur mise en conformité légale et dans la…” Source: RevenueBase Database · checked Sep 28, 2026
20	Axilium Group	Indirect evidence	Schilde, BelgiumHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Axilium is een technisch studiebureau dat waarde hecht aan innovatie, duurzaamheid en kwaliteit.” Source: RevenueBase Database · checked Sep 28, 2026
21	Institut Éco-Conseil Asbl	Indirect evidence	Namur, BelgiumHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “L'Institut Eco-Conseil asbl, centre de formation professionnelle pour adultes, est né en 1989.” Source: RevenueBase Database · checked Sep 28, 2026
22	Milvus Consulting NV	Partial evidence	Gent, BelgiumHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Since the successful merge of OLFASCAN and ECOSCAN, MILVUS consulting has grown into a multidisciplinary firm offering independent, science-driven environmental advice.” Source: RevenueBase Database · checked Sep 28, 2026
23	Veride	Indirect evidence	Geel, BelgiumHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “VERIDE BV is uw internationale partner met specialisatie in het ontwerp en beheer van milieutechnische installaties.” Source: RevenueBase Database · checked Sep 28, 2026
24	Matriciel	Indirect evidence	Louvain-la-neuve, BelgiumHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect 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 28, 2026
25	Ecofirst SC	Indirect evidence	Awenne, BelgiumHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Ecofirst SC is an ecological engineering consulting.” Source: RevenueBase Database · checked Sep 28, 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: environmental management 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 environmental management consultants.
Partial evidence: Its own public description names part of environmental management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental management 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 244 environmental management consultants based in Belgium

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Environmental management consultants based in Belgium at a glance

As of Sep 28, 2026

34.8%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

8.6%Largest-city concentration · Brussels

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

178

11-50

51-200

501-1,000

1,001-5,000

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 244 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 environmental management 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 “environmental management 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 environmental management 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 environmental management 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, 937 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 28, 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 environmental management 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 environmental management consultants are there based in Belgium?

RevenueBase identified 244 environmental management 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?

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

Which city has the most environmental management consultants?

Brussels leads with 21 headquartered companies, followed by Gent (9) and Liege (8).

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 937 verified decision-maker contacts tracked across these 244 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 28, 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.