Company lists · Data refreshed September 2026

Top 25 Environmental assessment firms based in Belgium

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 100 companies tracked

RevenueBase identified 100 environmental assessment firms headquartered in Belgium as of September 2026 and tracks 914 professional contacts across them, including 508 with verified work emails. Brussels is the largest hub.

This list covers environmental assessment firms 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 19, 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 19, 2026 86% judged on-target in blind review

100Companies

914Contacts tracked

508Verified emails

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The 25 largest environmental assessment firms based in Belgium

Ranked by team size

Top 25 of 100 environmental assessment firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental assessment firms: 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	Trevi NV	Partial evidence	Gentbrugge, BelgiumHQ checked Sep 19, 2026	51-200	101 contacts →
	Partial evidence “Trevi Environmental Solutions is a Belgian environmental technology company.” Source: RevenueBase Database · checked Sep 19, 2026
2	Sertius Environmental And Safety Services	Partial evidence	Wijgmaal, BelgiumHQ checked Sep 19, 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 19, 2026
3	Tauw Belgium	Partial evidence	Leuven (wijgmaal), BelgiumHQ checked Sep 19, 2026	51-200	80 contacts →
	Partial evidence “We shape a vital living environment.” Source: RevenueBase Database · checked Sep 19, 2026
4	Abo-Group Environment	Partial evidence	Gent, BelgiumHQ checked Sep 19, 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 19, 2026
5	Aries Consultants	Indirect evidence	Bierges, BelgiumHQ checked Sep 19, 2026	11-50	48 contacts →
	Indirect 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 19, 2026
6	Envirosoil NV	Indirect evidence	Oostkamp, BelgiumHQ checked Sep 19, 2026	51-200	44 contacts →
	Indirect evidence “Envirosoil \| Grondige expertise in milieuhygiënisch bodemonderzoek & milieuadvies Envirosoil is een gespecialiseerd adviesbureau in bodemonderzoek en bodemsanering, met meer dan…” Source: RevenueBase Database · checked Sep 19, 2026
7	Deme Environmental Contractors Decnv	Partial evidence	Zwijndrecht, BelgiumHQ checked Sep 19, 2026	201-500	38 contacts →
	Partial evidence “DEME Environmental Contractors (DEC) is an international environmental contractors with more than twenty years experience.” Source: RevenueBase Database · checked Sep 19, 2026
8	RDC Environment	Partial evidence	Brussels, BelgiumHQ checked Sep 19, 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 19, 2026
9	Misko Ingénieurs-Conseils	Indirect evidence	Bastogne, BelgiumHQ checked Sep 19, 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 19, 2026
10	Groep Dirk DE Groof	Indirect evidence	Putte, BelgiumHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “Working with architects and other professionals is in our DNA.” Source: RevenueBase Database · checked Sep 19, 2026
11	Milvus Consulting NV	Partial evidence	Gent, BelgiumHQ checked Sep 19, 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 19, 2026
12	Archimedes NV	Indirect evidence	Keerbergen, BelgiumHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “STABILITEIT - TECHNIEKEN - VEILIGHEIDSCOÖRDINATIE - EPB Als ingenieursbureau voor bouw en milieu zijn wij praktijkgericht en prijsbewust.” Source: RevenueBase Database · checked Sep 19, 2026
13	Ecofirst SC	Indirect evidence	Awenne, BelgiumHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Ecofirst SC is an ecological engineering consulting.” Source: RevenueBase Database · checked Sep 19, 2026
14	Advista	Indirect evidence	Louvain-la-neuve, BelgiumHQ checked Sep 19, 2026	1-10	13 contacts →
	Indirect evidence “ADVISTA est un bureau d’études et de conseils en environnement et développement durable.” Source: RevenueBase Database · checked Sep 19, 2026
15	AG Environnement	Partial evidence	Naninne, BelgiumHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “AG Environnement (for Assistance et gestion environnementale) wants to be a reliable partner to its clients dealing with environmental issues in the frame of their activities.” Source: RevenueBase Database · checked Sep 19, 2026
16	2b-Safe	Indirect evidence	Glabbeek, BelgiumHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Ingenieurs en adviesbureau gespecialiseerd in de bouwsector en actief over heel België.” Source: RevenueBase Database · checked Sep 19, 2026
17	Bk-Ecosys	Indirect evidence	Hasselt, BelgiumHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “BK-Ecosys is uw partner in de immer veranderende milieu- en ingenieursbranche.” Source: RevenueBase Database · checked Sep 19, 2026
18	Gcm-A	Indirect evidence	Lier, BelgiumHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “BODEMONDERZOEKEN * Oriënterend bodemonderzoek * Beschrijvend bodemonderzoek * Saneringsprojecten * Begeleiding bij saneringen * Grondverzet * Historisch onderzoek * Verkennend…” Source: RevenueBase Database · checked Sep 19, 2026
19	Creafarm BV	Indirect evidence	Roeselare, BelgiumHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Creafarm bv is als studie- en adviesbureau actief in dienstverlening voor de landbouw en KMO.” Source: RevenueBase Database · checked Sep 19, 2026
20	Thimad	Indirect evidence	Geel, BelgiumHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Sinds 1995 biedt Thimad BVBA (acroniem van THuis In Milieu-ADvies) ‘milieudiensten’ aan op maat van bedrijven.” Source: RevenueBase Database · checked Sep 19, 2026
21	Wascos Sprl	Indirect evidence	Ecaussinnes, BelgiumHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Wascos has been offering high quality services of consulting engineering for 20 years.” Source: RevenueBase Database · checked Sep 19, 2026
22	Mieco-Effect BV	Indirect evidence	Diest, BelgiumHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Mieco-effect bv is een ecologisch studie- en adviesbureau dat erom bekend staat te werken op thema's waar verschillende disciplines samen komen zoals #landschapsecologie (natuur…” Source: RevenueBase Database · checked Sep 19, 2026
23	Sol-Ex Sprl, Expertise & Conseil Environnemental	Indirect evidence	Gembloux, BelgiumHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Sol-Ex est un bureau d’expertise et de conseil environnemental.” Source: RevenueBase Database · checked Sep 19, 2026
24	Sodecon	Partial evidence	Niel, BelgiumHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “Passion for innovation and environmental excellence drives Sodecon to solve the toughest soil and water challenges.” Source: RevenueBase Database · checked Sep 19, 2026
25	SBS Environnement Sprl	Indirect evidence	Chaudfontaine, BelgiumHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Votre partenaire dans la gestion de votre environnement SBS Environnement : plus qu'un bureau d'études, LE partenaire dans la gestion de votre environnement.” Source: RevenueBase Database · checked Sep 19, 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 assessment firms. 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 assessment firms.
Partial evidence: Its own public description names part of environmental assessment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental assessment firms. 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 100 environmental assessment firms based in Belgium

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Environmental assessment firms based in Belgium at a glance

As of Sep 19, 2026

55.6%Verified-email coverage

9.1Average contacts per company

1-10Median size (employees)

4.0%Largest-city concentration · Brussels

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

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 100 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 assessment firms, 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 assessment firms”. 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 assessment firms), 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 assessment firms, 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, 508 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 19, 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 assessment firms, 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 assessment firms are there based in Belgium?

RevenueBase identified 100 environmental assessment firms 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?

Trevi NV, headquartered in Gentbrugge, tops this list with the largest team on record.

Which city has the most environmental assessment firms?

Brussels leads with 4 headquartered companies, followed by Bruxelles (4) and Antwerpen (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 508 verified decision-maker contacts tracked across these 100 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 19, 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.