Company lists · Data refreshed September 2026

Top 25 Water infrastructure consulting firms based in Belgium

RevenueBase identified 119 water infrastructure consulting firms headquartered in Belgium as of September 2026 and tracks 8,442 professional contacts across them, including 1,239 with verified work emails. Antwerp is the largest hub.

This list covers water infrastructure consulting 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 29, 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 29, 2026 86% judged on-target in blind review
119Companies
8,442Contacts tracked
1,239Verified emails
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The 25 largest water infrastructure consulting firms based in Belgium

Ranked by team size
Top 25 of 119 water infrastructure consulting firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to water infrastructure consulting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceTemse, BelgiumHQ checked Sep 29, 2026201-500295 contacts →

Indirect evidence

“MULTI enables customers to be successful by offering flexible solutions to their engineering issues.”

Source: RevenueBase Database · checked Sep 29, 2026
2Strong evidenceAntwerp, BelgiumHQ checked Sep 29, 2026201-500217 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 29, 2026
3Indirect evidenceHuizingen, BelgiumHQ checked Sep 29, 2026201-500141 contacts →

Indirect evidence

“ARGEA, nouvelle dénomination de SODRAEP, est une filiale de la SADE (Groupe NGE), implantée en Belgique depuis 1973.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceAntwerp, BelgiumHQ checked Sep 29, 202651-200130 contacts →

Partial 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 29, 2026
5Partial evidenceGhent, BelgiumHQ checked Sep 29, 2026501-1,000117 contacts →

Partial evidence

“expertise in drinking water transportation, drinking water distribution and waste water solutions water in specific quality on demand expertise on domestic water-installation…”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceGentbrugge, BelgiumHQ checked Sep 29, 202651-200101 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceWaregem, BelgiumHQ checked Sep 29, 2026201-50090 contacts →

Indirect evidence

“Facing a complex engineering question?”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceKortrijk, BelgiumHQ checked Sep 29, 202651-20085 contacts →

Partial evidence

“BM Engineering is een studiebureau op mensenmaat dat gebouwen en infrastructuur ontwerpt voor klanten in de private en de publieke sector.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceGrâce-hollogne, BelgiumHQ checked Sep 29, 202651-20074 contacts →

Indirect evidence

“Le bureau d’études Lemaire a été fondé par Frédéric Lemaire, ingénieur civil en construction.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceWaregem, BelgiumHQ checked Sep 29, 2026501-1,00044 contacts →

Partial evidence

“The Pollet Water Group is a worldwide water specialist, offering products, solutions and brands for the home market, hospitality, commercial buildings and industry.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceHalle, BelgiumHQ checked Sep 29, 202611-5039 contacts →

Partial evidence

“D+A Consult is als studie- en ingenieursbureau, een “one stop solution provider” voor projecten op vlak van Ruimtelijke Planning, Bouw en Infrastructuur.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceVedrin, BelgiumHQ checked Sep 29, 202611-5038 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 29, 2026
13Indirect evidenceBrugge, BelgiumHQ checked Sep 29, 202651-20037 contacts →

Indirect evidence

“De Klerck Engineering (DKE) is een familiaal en multidisciplinair ingenieursbureau, opgericht in 1973.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceTienen, BelgiumHQ checked Sep 29, 202611-5034 contacts →

Partial evidence

“As the global water technology experts, we deliver on both performance and sustainability without compromise.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceHerentals, BelgiumHQ checked Sep 29, 202611-5033 contacts →

Indirect evidence

“Geonius is een middelgroot, interdisciplinair ingenieursbureau.”

Source: RevenueBase Database · checked Sep 29, 2026
16Strong evidenceWesterlo, BelgiumHQ checked Sep 29, 202611-5033 contacts →

Strong 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 29, 2026
17Partial evidenceZwijndrecht, BelgiumHQ checked Sep 29, 202651-20033 contacts →

Partial evidence

“Al 130 jaar meedenken, realiseren en ontzorgen wij op de grens van land en water!”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceKontich, BelgiumHQ checked Sep 29, 202611-5029 contacts →

Indirect evidence

“AGT-Advanced Groundwater Techniques specializes in applied groundwater techniques.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceSint-katelijne Waver, BelgiumHQ checked Sep 29, 202611-5020 contacts →

Indirect evidence

“Welcome to the AAQUA page!”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceEtterbeek, BelgiumHQ checked Sep 29, 202611-5020 contacts →

Indirect evidence

“FI Engineering est un bureau d'études en techniques spéciales et en assistance technique, reconnu pour son expertise technique, sa qualité de service et son approche orientée…”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceGeel, BelgiumHQ checked Sep 29, 202611-5017 contacts →

Indirect evidence

“VERIDE BV is uw internationale partner met specialisatie in het ontwerp en beheer van milieutechnische installaties.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceRoeselare, BelgiumHQ checked Sep 29, 202611-5014 contacts →

Partial evidence

“Vertrekkende van ons uitgebreid archief en gelet op onze 50-jarige ervaring met allerhande projecten van riolering, wegenis, waterbeheersing en andere infrastructuur proberen wij…”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceBelgiumHQ checked Sep 29, 2026n/a14 contacts →

Partial evidence

“The Ramboll Group has entered into an agreement to acquire the US engineering and design consultancy OBG, adding 900 experts within water, energy, environment and advanced…”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceHasselt, BelgiumHQ checked Sep 29, 202611-5012 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceNaninne, BelgiumHQ checked Sep 29, 202611-5012 contacts →

Indirect evidence

“ALMADIUS assists project developers in engineering and environment.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 119 water infrastructure consulting firms based in Belgium

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Water infrastructure consulting firms based in Belgium at a glance

As of Sep 29, 2026
14.7%Verified-email coverage
70.9Average contacts per company
11-50Median size (employees)
5.0%Largest-city concentration · Antwerp
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
44
51-200
9
201-500
6
501-1,000
2
1,001-5,000
1
5,001-10,000
1
10001+
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 119 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 water infrastructure consulting 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 “water infrastructure consulting 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 water infrastructure consulting 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 water infrastructure consulting 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, 1,239 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 29, 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 water infrastructure consulting 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 water infrastructure consulting firms are there based in Belgium?

RevenueBase identified 119 water infrastructure consulting 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?

multi.engineering, headquartered in Temse, tops this list with the largest team on record.

Which city has the most water infrastructure consulting firms?

Antwerp leads with 6 headquartered companies, followed by Brussels (3) and Ghent (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 1,239 verified decision-maker contacts tracked across these 119 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 29, 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.