Company lists · Data refreshed November 2026

Top 25 Environmental systems consultants based in Belgium

RevenueBase identified 114 company matches for environmental systems consultants associated with Belgium as of November 2026 and tracks 1,136 professional contacts across them, including 646 with verified work emails. Brussels is the largest hub.

This list covers company matches for environmental systems consultants 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 6, 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 6, 2026 How this list was built
114Companies
1,136Contacts tracked
646Verified emails
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The 25 largest environmental systems consultants based in Belgium

Ranked by team size
Top 25 of 114 company matches for environmental systems consultants based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchGentbrugge, BelgiumHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“Trevi Environmental Solutions is a Belgian environmental technology company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHouthalen, BelgiumHQ recorded Nov 6, 202651-20092 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 6, 2026 · View company records in RevenueBase
3Exact matchLeuven (wijgmaal), BelgiumHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“We shape a vital living environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWijgmaal, BelgiumHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“Sertius and its multidisciplinary team offer their services in the fields of environment and security- Legal advices and administrative support: Practical advices regarding…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGhent, BelgiumHQ recorded Nov 6, 2026501-1,00064 contacts →

Exact match

“ABO-Group Environment has developed into a cluster of integrated environmental companies specialized in testing and engineering in various sectors such as soil, environment…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchZwevegem, BelgiumHQ recorded Nov 6, 202611-5030 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 6, 2026 · View company records in RevenueBase
7Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-5028 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 6, 2026 · View company records in RevenueBase
8Exact matchGhent, BelgiumHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Since the successful merge of OLFASCAN and ECOSCAN, MILVUS consulting has grown into a multidisciplinary firm offering independent, science-driven environmental advice.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAwenne, BelgiumHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Ecofirst SC is an ecological engineering consulting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHasselt, BelgiumHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“BK-Ecosys is uw partner in de immer veranderende milieu- en ingenieursbranche.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNaninne, BelgiumHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLouvain-la-neuve, BelgiumHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“ADVISTA est un bureau d’études et de conseils en environnement et développement durable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLangemark, BelgiumHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Adviesbureau Decock begeleidt bedrijven en particulieren die ondersteuning nodig hebben in alles wat met milieu en omgeving te maken heeft.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDestelbergen, BelgiumHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Technisch studiebureau, actief in de bouwsector en gespecialiseerd in HVAC, Elektriciteit, EPB, Hernieuwbare energie, Veiligheid, Milieu”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBrussels, BelgiumHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“21 Solutions is a consulting firm active in Belgium, France, and internationally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAalter, BelgiumHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Artion ensures that your company complies with all legally required environmental inspections and guarantees correct implementation and follow-up by our carefully selected experts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchEcaussinnes, BelgiumHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Wascos has been offering high quality services of consulting engineering for 20 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchRoeselare, BelgiumHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Creafarm bv is als studie- en adviesbureau actief in dienstverlening voor de landbouw en KMO.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGeel, BelgiumHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Bureau DW bvba is een onafhankelijk ingenieursbureau, gespecialiseerd in milieu- en omgevingsstudies, dat in 2016 werd opgericht door de bio-ingenieurs Jef Dierckx en Rob Wuyts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchGeel, BelgiumHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Sinds 1995 biedt Thimad BVBA (acroniem van THuis In Milieu-ADvies) ‘milieudiensten’ aan op maat van bedrijven.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSt-genesius-rode, BelgiumHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Headquartered in Belgium, ASPAC Technics is an EPC Contractor which specialises in Water and the Environment, designingand constructing state-of-the-art systems worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLier, BelgiumHQ recorded Nov 6, 20261-107 contacts →

Exact match

“BODEMONDERZOEKEN * Oriënterend bodemonderzoek * Beschrijvend bodemonderzoek * Saneringsprojecten * Begeleiding bij saneringen * Grondverzet * Historisch onderzoek * Verkennend…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDiest, BelgiumHQ recorded Nov 6, 202611-506 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLiège, BelgiumHQ recorded Nov 6, 20261-106 contacts →

Exact match

“RAISô propose un service de consultance en environnement, spécialisé dans la gestion des eaux souterraines et de surface.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGhent, BelgiumHQ recorded Nov 6, 20261-106 contacts →

Exact match

“ECOSCAN is een onafhankelijk advies- en studiebureau dat gespecialiseerd is in het opstellen en opvolgen van diverse milieu- en natuurrapporten voor projecten die mogelijk invloed…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 114 environmental systems consultants based in Belgium

See the full list, filter by size, metro and specialty, and access 646 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental systems consultants based in Belgium at a glance

As of Nov 6, 2026
56.9%Verified-email coverage
10.0Average contacts per company
1-10Median size (employees)
10.5%Largest-city concentration · Brussels
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
80
11-50
24
51-200
7
501-1,000
1

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 114 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 systems consultants” 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 646 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 6, 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.

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 systems consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental systems consultants are there based in Belgium?

RevenueBase identified 114 company matches for environmental systems consultants 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?

Trevi NV tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most environmental systems consultants?

Brussels leads with 12 company records, followed by Antwerp (7) and Liege (5).

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 646 professional contacts with verified work emails tracked across these 114 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 6, 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.