Company lists · Data refreshed September 2026

Top 25 Marine geotechnical firms based in the Netherlands

RevenueBase identified 289 marine geotechnical firms headquartered in the Netherlands as of September 2026 and tracks 14,768 professional contacts across them, including 5,056 with verified work emails. Rotterdam is the largest hub.

This list covers marine geotechnical firms 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
289Companies
14,768Contacts tracked
5,056Verified emails
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The 25 largest marine geotechnical firms based in the Netherlands

Ranked by team size
Top 25 of 289 marine geotechnical firms 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 marine geotechnical 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
1Partial evidence3063 Nh, NetherlandsHQ checked Sep 20, 20265,001-10,0004,364 contacts →

Partial evidence

“Van Oord is a leading international marine contractor focusing on dredging, infrastructure and offshore energy projects.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidencePapendrecht, NetherlandsHQ checked Sep 20, 202610001+3,366 contacts →

Partial evidence

“Boskalis is a leading global services provider operating in the dredging, maritime infrastructure and maritime services sectors.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceLeiden, NetherlandsHQ checked Sep 20, 20261,001-5,0002,643 contacts →

Partial evidence

“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSliedrecht, NetherlandsHQ checked Sep 20, 2026201-500321 contacts →

Indirect evidence

“IQIP provides fully integrated solutions for on and offshore foundation installation and decommissioning in the offshore wind, oil & gas, and coastal & civil markets.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceSliedrecht, NetherlandsHQ checked Sep 20, 2026201-500173 contacts →

Indirect evidence

“Baggerbedrijf De Boer - Dutch Dredging is a medium size dredging company, based in Sliedrecht in the Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceWerkendam, NetherlandsHQ checked Sep 20, 2026201-500161 contacts →

Indirect evidence

“Hakkers maakt het mogelijk Al 150 jaar werkt Hakkers aan projecten op het grensvlak van water en land.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceZeist, NetherlandsHQ checked Sep 20, 202651-200126 contacts →

Partial evidence

“QPS is a software design company specialised in Hydrographic and Maritime applications.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidencePapendrecht, NetherlandsHQ checked Sep 20, 202651-200103 contacts →

Indirect evidence

“Gebr.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 20, 202651-20095 contacts →

Indirect evidence

“Deep is an innovative survey company founded in and ever since headquartered in Amsterdam, The Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceRotterdam, NetherlandsHQ checked Sep 20, 202651-20089 contacts →

Partial evidence

“Vuyk Engineering is an independent Maritime Design House specialising in high-quality engineering solutions across four key disciplines: ship design and conversion, methods…”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 202651-20078 contacts →

Indirect evidence

“KCI Offshore Engineering has been providing design, engineering, and consultancy services to the offshore industry for over 40 years.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceTolbert, NetherlandsHQ checked Sep 20, 202651-20072 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
13Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 20, 202651-20046 contacts →

Indirect evidence

“Deskundig advies op het gebied van: Geo Engineering & Omgevingsbeïnvloeding.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceHansweert, NetherlandsHQ checked Sep 20, 202651-20044 contacts →

Indirect evidence

“Van der Straaten staat bekend als een ondernemende aannemer met meer dan honderd jaar ervaring.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceMiddelbeers, NetherlandsHQ checked Sep 20, 202651-20039 contacts →

Indirect evidence

“Wij zijn Silt.”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceUrk, NetherlandsHQ checked Sep 20, 202611-5039 contacts →

Partial evidence

“Braveheart Marine is a premier provider of hydrographic survey, inshore, nearshore and offshore support, and crew tendering services.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceGa, NetherlandsHQ checked Sep 20, 202651-20037 contacts →

Indirect evidence

“From our offices in the Netherlands, our highly experienced surveyors travel around the world undertaking every type of technical survey – particularly in the fields of land…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 202611-5037 contacts →

Indirect evidence

“ROG, your partner for Dockside and Onsite services!”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceUrk, NetherlandsHQ checked Sep 20, 202611-5035 contacts →

Partial evidence

“GLOBAL COMMERCIAL DIVING, ROV, SUBSEA MARINE AND OFFSHORE CONSTRUCTION SERVICES DUC Marine Group offers services to the Offshore Construction, Renewables, Oil and Gas Construction…”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceGroningen, NetherlandsHQ checked Sep 20, 202611-5032 contacts →

Indirect evidence

“Geo Plus is specialised in hydrographic surveys in shallow water.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 20, 202611-5031 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
22Indirect evidenceDordrecht, NetherlandsHQ checked Sep 20, 202611-5030 contacts →

Indirect evidence

“Saltwater provides tailor-made engineering solutions for the naval and offshore industry.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 202611-5030 contacts →

Indirect evidence

“Offshore Independents is a leading offshore engineering and consultancy firm.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceWoerden, NetherlandsHQ checked Sep 20, 202611-5030 contacts →

Indirect evidence

“SPT Offshore, a DEME Offshore subsidiary, is the leading offshore contractor for suction pile anchors and foundations.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceLelystad, NetherlandsHQ checked Sep 20, 202611-5030 contacts →

Partial evidence

“WaterProof BV is a specialized consultancy company for the marine sector focusing on both marine consultancy and marine services.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 289 marine geotechnical firms based in the Netherlands

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Marine geotechnical firms based in the Netherlands at a glance

As of Sep 20, 2026
34.2%Verified-email coverage
51.1Average contacts per company
11-50Median size (employees)
9.0%Largest-city concentration · Rotterdam
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
143
11-50
105
51-200
27
201-500
9
1,001-5,000
2
5,001-10,000
2
10001+
1

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 289 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 marine geotechnical 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 the Netherlands whose own description of what they do matches “marine geotechnical 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 marine geotechnical 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 marine geotechnical firms, 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, 5,056 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.

Marine geotechnical firms by metro

  • Marine geotechnical firms in Rotterdam26

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 marine geotechnical 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 marine geotechnical firms are there based in the Netherlands?

RevenueBase identified 289 marine geotechnical firms 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?

VAN Oord, headquartered in Rotterdam, tops this list with the largest team on record.

Which city has the most marine geotechnical firms?

Rotterdam leads with 26 headquartered companies, followed by Amsterdam (8) and Dordrecht (7).

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 5,056 verified decision-maker contacts tracked across these 289 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.