Company lists · Data refreshed September 2026

Top 25 Groundwater consulting companies based in the Netherlands

Name: Groundwater consulting companies based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 117 companies tracked

RevenueBase identified 117 groundwater consulting companies headquartered in the Netherlands as of September 2026 and tracks 1,012 professional contacts across them, including 474 with verified work emails. Amsterdam is the largest hub.

This list covers groundwater consulting companies headquartered in the Netherlands, 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 20, 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 20, 2026 86% judged on-target in blind review

117Companies

1,012Contacts tracked

474Verified emails

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The 25 largest groundwater consulting companies based in the Netherlands

Ranked by team size

Top 25 of 117 groundwater consulting companies based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to groundwater consulting companies: 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	HKV Lijn In Water	Indirect evidence	Lelystad, NetherlandsHQ checked Sep 20, 2026	51-200	94 contacts →
	Indirect evidence “HKV, de kennisondernemer voor water en veiligheid HKV levert, als onafhankelijk bureau, hoogwaardige onderzoek- en adviesdiensten op het gebied van water en veiligheid in binnen-…” Source: RevenueBase Database · checked Sep 20, 2026
2	Wiertsema & Partners B.V	Indirect evidence	Tolbert, NetherlandsHQ checked Sep 20, 2026	51-200	72 contacts →
	Indirect evidence “Wiertsema & Partners is al ruim 46 jaar expert in het uitvoeren en leveren van geo- en milieutechnisch onderzoek, monitoring en advies.” Source: RevenueBase Database · checked Sep 20, 2026
3	Panterra Geoconsultants BV	Indirect evidence	Leiderdorp, NetherlandsHQ checked Sep 20, 2026	51-200	60 contacts →
	Indirect evidence “PanTerra Geoconsultants is a leading geological service provider with over 35 years of worldwide industry experience.” Source: RevenueBase Database · checked Sep 20, 2026
4	Haitjema Grondboorbedrijf B.V	Partial evidence	Dedemsvaart, NetherlandsHQ checked Sep 20, 2026	51-200	59 contacts →
	Partial evidence “Dutch independent water well drilling company and manufacturer of complete groundwater installations suitable for drinking water, process water, and aquifer energy storage as well…” Source: RevenueBase Database · checked Sep 20, 2026
5	Crux Engineering BV	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	51-200	46 contacts →
	Indirect evidence “Deskundig advies op het gebied van: Geo Engineering & Omgevingsbeïnvloeding.” Source: RevenueBase Database · checked Sep 20, 2026
6	Hydroscope	Indirect evidence	Breda, NetherlandsHQ checked Sep 20, 2026	51-200	37 contacts →
	Indirect evidence “Hydroscope is Nederlands grootste adviesbureau op het gebied van waterkwaliteit en -veiligheid binnen gebouwen.” Source: RevenueBase Database · checked Sep 20, 2026
7	Tjaden B.V	Indirect evidence	Zevenbergschen Hoek, NetherlandsHQ checked Sep 20, 2026	51-200	36 contacts →
	Indirect evidence “Tjaden is een gespecialiseerde, in binnen- en buitenland opererende aannemer op het gebied van bronbemaling, boringen, grondwatersystemen en waterbehandelingstechniek.” Source: RevenueBase Database · checked Sep 20, 2026
8	Periplus Group	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	11-50	31 contacts →
	Indirect evidence “The Periplus Group is a consultancy organization providing specialized personnel and knowledge in the field of hydrography and related disciplines such as geology, geophysics…” Source: RevenueBase Database · checked Sep 20, 2026
9	SGS Roos Bijl BV	Partial evidence	Spijkenisse, NetherlandsHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial evidence “The engineers and consultants SGS Roos+Bijl provide consulting and engineering services for projects in electrical engineering, telecommunications, water, gas, heat, road and rail…” Source: RevenueBase Database · checked Sep 20, 2026
10	Vhgm Part Of Sweco	Indirect evidence	Haarlem, NetherlandsHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “VHGM is een toonaangevend specialistisch ontwerp- en adviesbureau met een deskundigheid op het gebied van Bodemenergie en Aquathermie.” Source: RevenueBase Database · checked Sep 20, 2026
11	CDR International	Indirect evidence	Amersfoort, NetherlandsHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “CDR International B.V.(CDR) is an independent medium-sized Engineering Consultancy firm in the Water Sector, operating globally and having its roots in the Netherlands.” Source: RevenueBase Database · checked Sep 20, 2026
12	Bron Technologie	Indirect evidence	Ijsselmuiden, NetherlandsHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “BRON \| TECHNOLOGIE is gespecialiseerd in het ontwerpen, realiseren, beheren en onderhouden van kwalitatief hoogwaardige bronsystemen en bronboringen.” Source: RevenueBase Database · checked Sep 20, 2026
13	Verhoeve	Indirect evidence	Dordrecht, NetherlandsHQ checked Sep 20, 2026	51-200	22 contacts →
	Indirect evidence “Verhoeve Nederland BV is specialized in solving soil & water problems for public and private clients.” Source: RevenueBase Database · checked Sep 20, 2026
14	NRG	Indirect evidence	Gorinchem, NetherlandsHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Als NRG Group bundelen wij de krachten van drie gerenommeerde bedrijven: Denys, Alsema en Van Vulpen.” Source: RevenueBase Database · checked Sep 20, 2026
15	Boutengeotron Drilling Company	Partial evidence	Beuningen, NetherlandsHQ checked Sep 20, 2026	11-50	17 contacts →
	Partial evidence “BoutenGeotron is your specialist and partner in soil, environmental and groundwater engineering projects.” Source: RevenueBase Database · checked Sep 20, 2026
16	PJ Milieu BV	Indirect evidence	Nijkerk, NetherlandsHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Advies en uitvoering van: Asbestinventarisatie Asbest in grondonderzoek Bodemenergiemetingen Bodemonderzoek Bodemsanering Geohydrologisch advies Grondwaterzuivering Partijkeuring…” Source: RevenueBase Database · checked Sep 20, 2026
17	Theo VAN Velzen Grondboortechniek EN Bronbemaling	Indirect evidence	Alkmaar, NetherlandsHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “Theo van Velzen Bij Theo van Velzen Grondboortechniek & Bronbemaling weten we van aanpakken.” Source: RevenueBase Database · checked Sep 20, 2026
18	Aannemingsbedrijf Netjes Kampen	Indirect evidence	Kampen, NetherlandsHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “Vanuit onze thuisbasis Kampen in de wijdste regio alweer 40 jaar uw betrouwbare, duidelijke en oerdegelijke partner bij groen, grond- en waterwerken.” Source: RevenueBase Database · checked Sep 20, 2026
19	Koelewijn Grondwater & Techniek	Indirect evidence	Bunschoten-spakenburg, NetherlandsHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “KB Groep is een organisatie, gericht op de bronbemaling, grondboringen (Koelewijn Bronbemaling BV) en de bijbehorende grondgebonden energie systemen (GBES) en de warmte koude…” Source: RevenueBase Database · checked Sep 20, 2026
20	Stichting Deltares	Indirect evidence	Delft, NetherlandsHQ checked Sep 20, 2026	501-1,000	13 contacts →
	Indirect evidence “Stichting Deltares is a research company based out of DELFT, Netherlands.” Source: RevenueBase Database · checked Sep 20, 2026
21	Texplor Benelux	Indirect evidence	Breda, NetherlandsHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “De core business van Texplor Benelux betreft complexe lekdetectie en permanente monitoring op het gebied van bouw, milieu en civiel en geofysische onderzoeken.” Source: RevenueBase Database · checked Sep 20, 2026
22	Luinstra Watermanagement	Indirect evidence	Nieuwleusen, NetherlandsHQ checked Sep 20, 2026	51-200	12 contacts →
	Indirect evidence “Watermanagement betekent bij ons een wereld vol van technische ontwikkelingen bij bronbemalingen, retourbemalingen, horizontale bodemafdichting dmv waterglasinjectie, geothermie…” Source: RevenueBase Database · checked Sep 20, 2026
23	Wolbers Watermanagement	Indirect evidence	Coevorden, NetherlandsHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Bent u betrokken bij een project waarbij werkzaamheden onder de grondwaterspiegel uitgevoerd moeten worden?” Source: RevenueBase Database · checked Sep 20, 2026
24	DE Ruiter Grondwatertechniek	Indirect evidence	Haarlem, NetherlandsHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Producent van grondwaterzijdige bodemenergie systemen en drinkwaterbronnen” Source: RevenueBase Database · checked Sep 20, 2026
25	Tjaden Adviesbureau Voor Grondmechanica B.V	Indirect evidence	Alkmaar, NetherlandsHQ checked Sep 20, 2026	51-200	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 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: groundwater consulting companies. 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 groundwater consulting companies.
Partial evidence: Its own public description names part of groundwater consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name groundwater consulting companies. 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 117 groundwater consulting companies based in the Netherlands

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Groundwater consulting companies based in the Netherlands at a glance

As of Sep 20, 2026

46.8%Verified-email coverage

8.6Average contacts per company

1-10Median size (employees)

3.4%Largest-city concentration · Amsterdam

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 117 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 groundwater consulting companies, 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 the Netherlands whose own description of what they do matches “groundwater consulting companies”. 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 groundwater consulting companies), 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 groundwater consulting companies, and records with no verified work email. Companies headquartered outside Netherlands 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, 474 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 20, 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 groundwater consulting companies, 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 groundwater consulting companies are there based in the Netherlands?

RevenueBase identified 117 groundwater consulting companies headquartered in the Netherlands 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?

HKV Lijn In Water, headquartered in Jn, tops this list with the largest team on record.

Which city has the most groundwater consulting companies?

Amsterdam leads with 4 headquartered companies, followed by Rotterdam (4) and Amersfoort (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 474 verified decision-maker contacts tracked across these 117 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 20, 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.