Company lists · Data refreshed September 2026

Top 25 Environmental engineering firms based in Belgium

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 97 companies tracked

RevenueBase identified 97 environmental engineering firms headquartered in Belgium as of September 2026 and tracks 1,683 professional contacts across them, including 872 with verified work emails. Antwerp is the largest hub.

This list covers environmental engineering 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 16, 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 16, 2026 86% judged on-target in blind review

97Companies

1,683Contacts tracked

872Verified emails

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The 25 largest environmental engineering firms based in Belgium

Ranked by team size

Top 25 of 97 environmental engineering firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to environmental engineering 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	Antea Group Belgium	Strong evidence	Antwerpen, BelgiumHQ checked Sep 16, 2026	201-500	217 contacts →
	Strong evidence “Antea Group is an international consulting and engineering firm, specializing in full-service solutions in the fields of environment, infrastructure, public space, and water.” Source: RevenueBase Database · checked Sep 16, 2026
2	IMDC	Indirect evidence	Antwerp, BelgiumHQ checked Sep 16, 2026	51-200	130 contacts →
	Indirect evidence “IMDC (International Marine and Dredging Consultants) offers highly skilled expertise to tackle a wide range of water-related issues.” Source: RevenueBase Database · checked Sep 16, 2026
3	Trevi NV	Partial evidence	Gentbrugge, BelgiumHQ checked Sep 16, 2026	51-200	101 contacts →
	Partial evidence “Trevi Environmental Solutions is a Belgian environmental technology company.” Source: RevenueBase Database · checked Sep 16, 2026
4	Sertius Environmental And Safety Services	Partial evidence	Wijgmaal, BelgiumHQ checked Sep 16, 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 16, 2026
5	Tauw Belgium	Partial evidence	Leuven (wijgmaal), BelgiumHQ checked Sep 16, 2026	51-200	80 contacts →
	Partial evidence “We shape a vital living environment.” Source: RevenueBase Database · checked Sep 16, 2026
6	Bureau D Etudes Lemaire	Indirect evidence	Grâce-hollogne, BelgiumHQ checked Sep 16, 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 16, 2026
7	Abo-Group Environment	Strong evidence	Gent, BelgiumHQ checked Sep 16, 2026	501-1,000	66 contacts →
	Strong 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 16, 2026
8	Aclagro	Indirect evidence	Ghent Flemish, BelgiumHQ checked Sep 16, 2026	201-500	54 contacts →
	Indirect evidence “Wegenis en riolering / voiries - Bodemsanering en waterzuivering / dépollution sol et eaux - Afbraak en asbestverwijdering/ démolition et désamiantage - Grondreiniging /…” Source: RevenueBase Database · checked Sep 16, 2026
9	Abetec Architecten & Ingenieurs NV	Partial evidence	Zele, BelgiumHQ checked Sep 16, 2026	51-200	54 contacts →
	Partial evidence “ABETEC architects & engineers is a multidisciplinary architecture and engineering firm that holds a leading position in the field of professional services in the building industry.” Source: RevenueBase Database · checked Sep 16, 2026
10	Envirosoil NV	Indirect evidence	Oostkamp, BelgiumHQ checked Sep 16, 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 16, 2026
11	Deme Environmental Contractors Decnv	Partial evidence	Zwijndrecht, BelgiumHQ checked Sep 16, 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 16, 2026
12	Sher Ingénieurs-Conseils	Partial evidence	Vedrin, BelgiumHQ checked Sep 16, 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 16, 2026
13	DE Klerck Engineering Sdke	Partial evidence	Brugge, BelgiumHQ checked Sep 16, 2026	51-200	37 contacts →
	Partial evidence “De Klerck Engineering (DKE) is een familiaal en multidisciplinair ingenieursbureau, opgericht in 1973.” Source: RevenueBase Database · checked Sep 16, 2026
14	Associated Engineers	Indirect evidence	Zaventem, BelgiumHQ checked Sep 16, 2026	51-200	36 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
15	Geonius België	Indirect evidence	Herentals, BelgiumHQ checked Sep 16, 2026	11-50	33 contacts →
	Indirect evidence “Geonius is een middelgroot, interdisciplinair ingenieursbureau.” Source: RevenueBase Database · checked Sep 16, 2026
16	Groep Infrabo	Partial evidence	Westerlo, BelgiumHQ checked Sep 16, 2026	11-50	33 contacts →
	Partial 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 16, 2026
17	Milvus Consulting NV	Partial evidence	Gent, BelgiumHQ checked Sep 16, 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 16, 2026
18	Veride	Indirect evidence	Geel, BelgiumHQ checked Sep 16, 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 16, 2026
19	Seca Engineering	Indirect evidence	BelgiumHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “SECA BENELUX, après plus de 25 ans au sein du Groupe SECA, a décidé de poursuivre son développement en dehors du Groupe SECA, tout en maintenant un partenariat privilégié.” Source: RevenueBase Database · checked Sep 16, 2026
20	Archimedes NV	Indirect evidence	Keerbergen, BelgiumHQ checked Sep 16, 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 16, 2026
21	Ecofirst SC	Partial evidence	Awenne, BelgiumHQ checked Sep 16, 2026	11-50	15 contacts →
	Partial evidence “Ecofirst SC is an ecological engineering consulting.” Source: RevenueBase Database · checked Sep 16, 2026
22	Advista	Indirect evidence	Louvain-la-neuve, BelgiumHQ checked Sep 16, 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 16, 2026
23	AG Environnement	Partial evidence	Naninne, BelgiumHQ checked Sep 16, 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 16, 2026
24	2b-Safe	Indirect evidence	Glabbeek, BelgiumHQ checked Sep 16, 2026	11-50	13 contacts →
	Indirect evidence “Ingenieurs en adviesbureau gespecialiseerd in de bouwsector en actief over heel België.” Source: RevenueBase Database · checked Sep 16, 2026
25	Bk-Ecosys	Indirect evidence	Hasselt, BelgiumHQ checked Sep 16, 2026	11-50	12 contacts →
	Indirect evidence “BK-Ecosys is uw partner in de immer veranderende milieu- en ingenieursbranche.” Source: RevenueBase Database · checked Sep 16, 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 engineering 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 engineering firms.
Partial evidence: Its own public description names part of environmental engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental engineering 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 97 environmental engineering firms based in Belgium

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Environmental engineering firms based in Belgium at a glance

As of Sep 16, 2026

51.8%Verified-email coverage

17.4Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · Antwerp

Sep 16, 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 97 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 engineering 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 engineering 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 engineering 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 engineering 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, 872 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 16, 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 engineering 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 engineering firms are there based in Belgium?

RevenueBase identified 97 environmental engineering 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?

Antea Group Belgium, headquartered in Antwerpen, tops this list with the largest team on record.

Which city has the most environmental engineering firms?

Antwerp leads with 3 headquartered companies, followed by Brussels (3) and Gent (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 872 verified decision-maker contacts tracked across these 97 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 16, 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.