Company lists · Data refreshed September 2026

Top 23 Offshore wind foundation manufacturers based in the Netherlands

RevenueBase identified 40 offshore wind foundation manufacturers headquartered in the Netherlands as of September 2026 and tracks 4,592 professional contacts across them, including 934 with verified work emails. Rotterdam is the largest hub.

This list covers offshore wind foundation manufacturers 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 17, 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 17, 2026 86% judged on-target in blind review
40Companies
4,592Contacts tracked
934Verified emails
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The 23 largest offshore wind foundation manufacturers based in the Netherlands

Ranked by team size
Top 23 of 40 offshore wind foundation manufacturers based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to offshore wind foundation manufacturers: 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 evidenceLeiden, NetherlandsHQ checked Sep 17, 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 17, 2026
2Strong evidenceRoermond, NetherlandsHQ checked Sep 17, 2026501-1,000421 contacts →

Strong evidence

“With a company history dating back to 1948 and with more than 2400 monopiles produced, Sif Group is leading in offshore foundations for wind turbines and oil & gas platforms.”

Source: RevenueBase Database · checked Sep 17, 2026
3Strong evidenceSliedrecht, NetherlandsHQ checked Sep 17, 2026201-500321 contacts →

Strong 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 17, 2026
4Partial evidenceOosterhout, NetherlandsHQ checked Sep 17, 202651-200118 contacts →

Partial evidence

“Jack-Up Barge constructs sustainable offshore energy.”

Source: RevenueBase Database · checked Sep 17, 2026
5Partial evidenceSliedrecht, NetherlandsHQ checked Sep 17, 202651-200112 contacts →

Partial evidence

“Dieseko Group BV is the Frontrunner in Deep Foundations.”

Source: RevenueBase Database · checked Sep 17, 2026
6Strong evidenceOosthuizen, NetherlandsHQ checked Sep 17, 2026201-50097 contacts →

Strong evidence

“A good foundation is essential for every kind of building, infra, energy or offshore project.”

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidenceDordrecht, NetherlandsHQ checked Sep 17, 202651-20084 contacts →

Partial evidence

“For many years, Volker Staal en Funderingen (VSF) has worked in the steel fabrication and foundation sectors in Europe.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceRotterdam, NetherlandsHQ checked Sep 17, 202651-20078 contacts →

Partial 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 17, 2026
9Strong evidenceDelft, NetherlandsHQ checked Sep 17, 202611-5055 contacts →

Strong evidence

“ECE Offshore is an engineering, cable operations and equipment company focused on the offshore wind cable installation industry.”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidenceSchiedam, NetherlandsHQ checked Sep 17, 202611-5036 contacts →

Partial evidence

“Enersea is a true offshore engineering specialist, offering consultancy, structural design services and production systems design.”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceRotterdam, NetherlandsHQ checked Sep 17, 202611-5030 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
12Strong evidenceWoerden, NetherlandsHQ checked Sep 17, 202611-5030 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
13Strong evidenceAmsterdam, NetherlandsHQ checked Sep 17, 202611-5028 contacts →

Strong evidence

“GBM Works develops advanced offshore technologies for the installation and removal of wind turbine foundations.”

Source: RevenueBase Database · checked Sep 17, 2026
14Strong evidenceAmsterdam, NetherlandsHQ checked Sep 17, 202611-5019 contacts →

Strong evidence

“Seawind is a leading turnkey supplier of sustainable and cost-effective floating & bottom fixed offshore wind assets.”

Source: RevenueBase Database · checked Sep 17, 2026
15Strong evidenceRotterdam, NetherlandsHQ checked Sep 17, 202611-5013 contacts →

Strong evidence

“Crowner’s Services is a privately owned company serving the offshore oil & gas and offshore wind industry.”

Source: RevenueBase Database · checked Sep 17, 2026
16Strong evidenceHengelo, NetherlandsHQ checked Sep 17, 202611-5010 contacts →

Strong evidence

“2-B Energy will introduce and commercialize at a global level, an offshore wind power plant concept with significant lower Cost of Energy produced.”

Source: RevenueBase Database · checked Sep 17, 2026
17Strong evidenceRotterdam, NetherlandsHQ checked Sep 17, 202611-507 contacts →

Strong evidence

“On 12 December 2016 the Blauwwind Consortium was awarded by the Dutch government the right to develop, construct and operate the Borssele and IV offshore wind farms under a…”

Source: RevenueBase Database · checked Sep 17, 2026
18Strong evidenceVelp, NetherlandsHQ checked Sep 17, 202611-506 contacts →

Strong evidence

“WindBASE helps developers, OEMs and contractors make safer, smarter foundation decisions: reducing material use and increasing execution certainty in onshore wind projects…”

Source: RevenueBase Database · checked Sep 17, 2026
19Indirect evidenceRotterdam, NetherlandsHQ checked Sep 17, 20261-106 contacts →

Indirect evidence

“We are The Square, a team of young and ambitious engineers with extensive experience in various challenging projects.”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidenceSchiedam, NetherlandsHQ checked Sep 17, 202651-2003 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
21Strong evidenceZoetermeer, NetherlandsHQ checked Sep 17, 20261-102 contacts →

Strong evidence

“Innovative Offshore Wind Installation Concepts”

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceRotterdam, NetherlandsHQ checked Sep 17, 20261-102 contacts →

Indirect evidence

“SeaOwls is an internationally recognized Dutch jack-up consultancy firm, specialized in design, engineering, construction, modifications and operations of jack-up rigs and vessels.”

Source: RevenueBase Database · checked Sep 17, 2026
23Strong evidenceDelft, NetherlandsHQ checked Sep 17, 20261-101 contacts →

Strong evidence

“Providing services and solutions for the Offshore Wind, Offshore Oil & Gas and Maritime industries.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 23 of 40 offshore wind foundation manufacturers based in the Netherlands

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Offshore wind foundation manufacturers based in the Netherlands at a glance

As of Sep 17, 2026
20.3%Verified-email coverage
114.8Average contacts per company
11-50Median size (employees)
12.5%Largest-city concentration · Rotterdam
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
15
51-200
8
201-500
4
501-1,000
1
1,001-5,000
1
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 40 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 offshore wind foundation manufacturers, 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 “offshore wind foundation manufacturers”. 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 offshore wind foundation manufacturers), 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 offshore wind foundation manufacturers, 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, 934 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 17, 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 offshore wind foundation manufacturers, 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 offshore wind foundation manufacturers are there based in the Netherlands?

RevenueBase identified 40 offshore wind foundation manufacturers 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?

Heerema Marine Contractors, headquartered in Aa, tops this list with the largest team on record.

Which city has the most offshore wind foundation manufacturers?

Rotterdam leads with 5 headquartered companies, followed by Ah (2) and Amsterdam (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 934 verified decision-maker contacts tracked across these 40 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 17, 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.