Company lists · Data refreshed September 2026

Top 22 Dewatering contractors based in the Netherlands

RevenueBase identified 45 dewatering contractors headquartered in the Netherlands as of September 2026 and tracks 393 professional contacts across them, including 136 with verified work emails. Zwolle is the largest hub.

This list covers dewatering contractors 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 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
45Companies
393Contacts tracked
136Verified emails
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The 22 largest dewatering contractors based in the Netherlands

Ranked by team size
Top 22 of 45 dewatering contractors based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to dewatering contractors: 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 evidenceZwolle, NetherlandsHQ checked Sep 16, 202651-20049 contacts →

Indirect evidence

“rental@vdkamp.eu | Vanderkamp Pompen is an innovative, flexible company, with creative, and motivated people that deliver high-quality solutions for temporary pumping projects.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceAlphen Aan Den Rijn, NetherlandsHQ checked Sep 16, 202651-20042 contacts →

Indirect evidence

“De Bunnik Groep is een veelzijdige aannemer uit het Groene Hart.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceZevenbergschen Hoek, NetherlandsHQ checked Sep 16, 202651-20036 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 16, 2026
4Indirect evidenceCuijk, NetherlandsHQ checked Sep 16, 202651-20036 contacts →

Indirect evidence

“Royal Smals is leading and unique in offering integrated solutions for water-related projects and optimal use of dredged material flows.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceWinschoten, NetherlandsHQ checked Sep 16, 202611-5027 contacts →

Indirect evidence

“We zijn niet bang om de mouwen op te stropen en tot aan de knieën in de modder te staan.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceGroot-ammers, NetherlandsHQ checked Sep 16, 202651-20025 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceAlkmaar, NetherlandsHQ checked Sep 16, 202651-20015 contacts →

Indirect evidence

“Theo van Velzen Bij Theo van Velzen Grondboortechniek & Bronbemaling weten we van aanpakken.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceBunschoten-spakenburg, NetherlandsHQ checked Sep 16, 202611-5014 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 16, 2026
9Indirect evidenceWassenaar, NetherlandsHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceCoevorden, NetherlandsHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

“Bent u betrokken bij een project waarbij werkzaamheden onder de grondwaterspiegel uitgevoerd moeten worden?”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceHedel, NetherlandsHQ checked Sep 16, 202611-509 contacts →

Indirect evidence

“Welcome to Kurstjens A unique player on the market, capable of implementing assignments in its areas of specialisation, using its own material, expertise and experience in the…”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceVeendam, NetherlandsHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceThe Hague, NetherlandsHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Aanbieden, adviseren, aanbrengen en verzorgen van alle soorten tijdelijke bemalingen.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceKapelle, NetherlandsHQ checked Sep 16, 20261-106 contacts →

Indirect evidence

“Service in Separation is sinds 2006 een dienstverlener voor het leveren van oplossingen voor tijdelijke voorzieningen op waterzuiveringsinstallaties, zowel communaal als…”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceGoes, NetherlandsHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Privately owned dredging company specialized in maintenance dredging of shallow waterways”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceMill, NetherlandsHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“Wij zijn een onderneming gespecialiseerd in het boren van bronnen en het aanbrengen van bronbemalingen.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceHaarlem, NetherlandsHQ checked Sep 16, 20261-103 contacts →

Indirect evidence

“Specialisten in grondwatervraagstukken.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceWilbertoord, NetherlandsHQ checked Sep 16, 202611-502 contacts →

Indirect evidence

“De duurzame partner voor Grondboringen & Bronbemaling.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceRijkevoort, NetherlandsHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

“Al ruim dertig jaar staat Jansen Bronbemaling voor u klaar met bronbemalingssystemen, grondboren en vuilwaterpompen.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceZwolle, NetherlandsHQ checked Sep 16, 202611-501 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“Met bijna een eeuw aan kennis en ervaring op het gebied van bronbemaling en geohydrologie zijn wij dé partner voor waterdichte oplossingen.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceUlft, NetherlandsHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“We support our clients by dredger design engineering but also the delivery of turn-key dredgers or dredge components.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 22 of 45 dewatering contractors based in the Netherlands

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Dewatering contractors based in the Netherlands at a glance

As of Sep 16, 2026
34.6%Verified-email coverage
8.7Average contacts per company
11-50Median size (employees)
6.7%Largest-city concentration · Zwolle
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
18
51-200
7

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 45 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 dewatering contractors, 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 “dewatering contractors”. 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 dewatering contractors), 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 dewatering contractors, 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, 136 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 dewatering contractors, 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 dewatering contractors are there based in the Netherlands?

RevenueBase identified 45 dewatering contractors 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?

Vanderkamp, headquartered in Zwolle, tops this list with the largest team on record.

Which city has the most dewatering contractors?

Zwolle leads with 3 headquartered companies, followed by Alkmaar (2) and Ad (1).

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 136 verified decision-maker contacts tracked across these 45 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.