Company lists · Data refreshed September 2026

Top 25 Hydrogeological consulting firms based in Belgium

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 68 companies tracked

RevenueBase identified 68 hydrogeological consulting firms headquartered in Belgium as of September 2026 and tracks 838 professional contacts across them, including 385 with verified work emails and 17 with mobile numbers. Namur is the largest hub.

This list covers hydrogeological 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 3, 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 3, 2026 86% judged on-target in blind review

68Companies

838Contacts tracked

385Verified emails

17Mobile numbers

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The 25 largest hydrogeological consulting firms based in Belgium

Ranked by team size

Top 25 of 68 hydrogeological consulting firms based in Belgium, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to hydrogeological 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Herbosch-Kiere	Indirect evidence	Kallo, BelgiumHQ checked Sep 3, 2026	201-500	166 contacts →
	Indirect evidence “For more than a century, Herbosch-Kiere has been building sustainable infrastructure in, on and around water.” Source: RevenueBase Database · checked Sep 3, 2026
2	IMDC	Indirect evidence	Antwerp, BelgiumHQ checked Sep 3, 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 3, 2026
3	Envirosoil NV	Indirect evidence	Oostkamp, BelgiumHQ checked Sep 3, 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 3, 2026
4	Sher Ingénieurs-Conseils	Indirect evidence	Vedrin, BelgiumHQ checked Sep 3, 2026	11-50	38 contacts →
	Indirect 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 3, 2026
5	Group Verbeke	Indirect evidence	Sint-Eloois-Winkel, BelgiumHQ checked Sep 3, 2026	51-200	33 contacts →
	Indirect evidence “Al sinds 1973 bouwt Group Verbeke aan een intussen indrukwekkende reputatie als grondmechanisch bureau en erkend bodemsaneringsdeskundige Type I.” Source: RevenueBase Database · checked Sep 3, 2026
6	Geolys	Indirect evidence	Ciney, BelgiumHQ checked Sep 3, 2026	11-50	32 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 3, 2026
7	AGT NV	Indirect evidence	Kontich, BelgiumHQ checked Sep 3, 2026	11-50	29 contacts →
	Indirect evidence “AGT-Advanced Groundwater Techniques specializes in applied groundwater techniques.” Source: RevenueBase Database · checked Sep 3, 2026
8	Veride	Indirect evidence	Geel, BelgiumHQ checked Sep 3, 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 3, 2026
9	Advista	Indirect evidence	Louvain-La-Neuve Bruxelles, BelgiumHQ checked Sep 3, 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 3, 2026
10	Aquaconseil Sprl	Indirect evidence	Vise, BelgiumHQ checked Sep 3, 2026	1-10	9 contacts →
	Indirect evidence “Since its founding in Aquaconseil has matured into a professional and strictly independent consultant.” Source: RevenueBase Database · checked Sep 3, 2026
11	Seasoils BV	Indirect evidence	BelgiumHQ checked Sep 3, 2026	11-50	9 contacts →
	Indirect evidence “SEASOILS is a Belgian based professional engineering services firm, specialising in the fields of light Geotechnics, Environment and hydro surveys.” Source: RevenueBase Database · checked Sep 3, 2026
12	Geolab	Indirect evidence	BelgiumHQ checked Sep 3, 2026	11-50	9 contacts →
	Indirect evidence “Geolab werd opgericht in 1975.” Source: RevenueBase Database · checked Sep 3, 2026
13	Sumaqua	Indirect evidence	Leuven, BelgiumHQ checked Sep 3, 2026	1-10	7 contacts →
	Indirect evidence “Sumaqua is an independent high-tech company focusing on water management and modelling.” Source: RevenueBase Database · checked Sep 3, 2026
14	Aquale	Indirect evidence	Namur, BelgiumHQ checked Sep 3, 2026	1-10	7 contacts →
	Indirect evidence “AQUALE is an engineering company specialised in environmental protection, focused on 3D numerical modelling: surface and underground flow modelling, contaminant and Heat transport…” Source: RevenueBase Database · checked Sep 3, 2026
15	Sol-Ex Sprl, Expertise & Conseil Environnemental	Indirect evidence	Gembloux, BelgiumHQ checked Sep 3, 2026	1-10	6 contacts →
	Indirect evidence “Sol-Ex est un bureau d’expertise et de conseil environnemental.” Source: RevenueBase Database · checked Sep 3, 2026
16	Rimeco Milieu NV	Indirect evidence	Tienen, BelgiumHQ checked Sep 3, 2026	11-50	6 contacts →
	Indirect evidence “Rimeco Milieu is een jong, dynamisch en onafhankelijk adviesbureau met reeds meer dan 10 jaar ervaring in bodemonderzoeken en aanverwante diensten.” Source: RevenueBase Database · checked Sep 3, 2026
17	Gefotech SRL	Indirect evidence	Ciney Ciney, BelgiumHQ checked Sep 3, 2026	1-10	6 contacts →
	Indirect evidence “Depuis 20 ans, Gefotech fournit des services divers pour les secteurs de l'environnement et de la construction.” Source: RevenueBase Database · checked Sep 3, 2026
18	RAISÔ	Indirect evidence	Liege, BelgiumHQ checked Sep 3, 2026	1-10	5 contacts →
	Indirect evidence “RAISô propose un service de consultance en environnement, spécialisé dans la gestion des eaux souterraines et de surface.” Source: RevenueBase Database · checked Sep 3, 2026
19	Artesia	Indirect evidence	Ougree, BelgiumHQ checked Sep 3, 2026	1-10	5 contacts →
	Indirect evidence “ARTESIA was founded by 4 geological engineers passionated about hydrogeology, applied to sensitive and complex contexts.” Source: RevenueBase Database · checked Sep 3, 2026
20	Alpha-Studieb.U.R.O. Bvba	Indirect evidence	Antwerp, BelgiumHQ checked Sep 3, 2026	11-50	4 contacts →
	Indirect evidence “Ingenieursbureau bouwkunde, civiele techniek en geotechniek met meer dan 40 jaar ervaring in de uitvoering van industriële projecten, infrastructuurwerken met activiteiten…” Source: RevenueBase Database · checked Sep 3, 2026
21	Topokor NV	Indirect evidence	Kortrijk, BelgiumHQ checked Sep 3, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 3, 2026
22	SOLOR	Indirect evidence	Mettet, BelgiumHQ checked Sep 3, 2026	11-50	4 contacts →
	Indirect evidence “Bureau d'études en stabilité, Essais de sol, Tests de perméabilité, Essais à la plaque, Pose de piézomètre, CertiBEau” Source: RevenueBase Database · checked Sep 3, 2026
23	Bova Enviro	Partial evidence	Destelbergen, BelgiumHQ checked Sep 3, 2026	11-50	4 contacts →
	Partial evidence “NEW JOBS @ BOVA ENVIRO+ is a consulting company with more than 20 years of experience, active in Flanders, Brussels, Wallonia and the Netherlands.” Source: RevenueBase Database · checked Sep 3, 2026
24	Clasal	Indirect evidence	Zedelgem, BelgiumHQ checked Sep 3, 2026	11-50	3 contacts →
	Indirect evidence “Clasal is al meer dan 100 jaar jouw specialist in grondwatermanagement.” Source: RevenueBase Database · checked Sep 3, 2026
25	LLEC	Indirect evidence	Waregem, BelgiumHQ checked Sep 3, 2026	1-10	3 contacts →
	Indirect evidence “LLEC is specialized in civil engineering (structural and geotechnical analyses) with a specific expertise and focus on port, river and hydraulic engineering.” Source: RevenueBase Database · checked Sep 3, 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: hydrogeological consulting 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 hydrogeological consulting firms.
Partial evidence: Its own public description names part of hydrogeological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydrogeological consulting 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 68 hydrogeological consulting firms based in Belgium

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Hydrogeological consulting firms based in Belgium at a glance

As of Sep 3, 2026

45.9%Verified-email coverage

2.0%Mobile-number coverage

12.3Average contacts per company

1-10Median size (employees)

7.4%Largest-city concentration · Namur

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

3331–60

22861–90

12490–180

0180+

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 hydrogeological 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 “hydrogeological 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 hydrogeological 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 hydrogeological 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, 385 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 3, 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 hydrogeological 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 hydrogeological consulting firms are there based in Belgium?

RevenueBase identified 68 hydrogeological 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?

Herbosch-Kiere, headquartered in Kallo, tops this list with the largest team on record.

Which city has the most hydrogeological consulting firms?

Namur leads with 5 headquartered companies, followed by Brussels (3) and Kortrijk (2).

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 385 verified decision-maker contacts tracked across these 68 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 3, 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.