Company lists · Data refreshed September 2026

Top 25 Offshore wind foundation manufacturers worldwide

Name: Offshore wind foundation manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 106 companies tracked

RevenueBase identified 106 offshore wind foundation manufacturers worldwide as of September 2026 and tracks 6,180 professional contacts across them, including 1,412 with verified work emails and 0 with mobile numbers. The Netherlands is the largest market and Aberdeen the largest hub.

This list covers offshore wind foundation manufacturers worldwide, 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. Country and city lists for offshore wind foundation manufacturers follow the table.

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

106Companies

6,180Contacts tracked

1,412Verified emails

0Mobile numbers

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The 25 largest offshore wind foundation manufacturers worldwide

Ranked by team size

Top 25 of 106 offshore wind foundation manufacturers worldwide, 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Heerema Marine Contractors	Partial evidence	Leiden, NetherlandsHQ checked Sep 17, 2026	1,001-5,000	2,643 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
2	SIF Group	Strong evidence	Roermond, NetherlandsHQ checked Sep 17, 2026	501-1,000	421 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
3	TWD	Partial evidence	Rotterdam, JapanHQ checked Sep 17, 2026	201-500	371 contacts →
	Partial evidence “We create custom-designed structures and tools to help you perform your offshore or heavy civil installation projects safely and on time.” Source: RevenueBase Database · checked Sep 17, 2026
4	IQIP	Strong evidence	Sliedrecht, NetherlandsHQ checked Sep 17, 2026	201-500	321 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
5	Seah Wind	Partial evidence	Middlesbrough, United KingdomHQ checked Sep 17, 2026	201-500	206 contacts →
	Partial evidence “Offshore Monopiles” Source: RevenueBase Database · checked Sep 17, 2026
6	Zentech Incorporated	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	181 contacts →
	Indirect evidence “Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…” Source: RevenueBase Database · checked Sep 17, 2026
7	OSBIT	Indirect evidence	Northumberland, United KingdomHQ checked Sep 17, 2026	201-500	171 contacts →
	Indirect evidence “Osbit’s vision is to unlock a clean energy future by creating smarter technology.” Source: RevenueBase Database · checked Sep 17, 2026
8	Eastgate Engineering	Indirect evidence	Thornaby-on-tees, United KingdomHQ checked Sep 17, 2026	201-500	163 contacts →
	Indirect evidence “Eastgate Engineering is an Electrical and Instrumentation contractor that delivers complex, high-risk infrastructure projects with cost certainty, without compromising safety or…” Source: RevenueBase Database · checked Sep 17, 2026
9	Seajacks	Indirect evidence	Great Yarmouth, United KingdomHQ checked Sep 17, 2026	201-500	122 contacts →
	Indirect evidence “Please follow @Cadeler for more updates.” Source: RevenueBase Database · checked Sep 17, 2026
10	Jack-Up Barge BV	Partial evidence	Oosterhout, NetherlandsHQ checked Sep 17, 2026	51-200	118 contacts →
	Partial evidence “Jack-Up Barge constructs sustainable offshore energy.” Source: RevenueBase Database · checked Sep 17, 2026
11	Dieseko Group	Partial evidence	Sliedrecht, NetherlandsHQ checked Sep 17, 2026	51-200	112 contacts →
	Partial evidence “Dieseko Group BV is the Frontrunner in Deep Foundations.” Source: RevenueBase Database · checked Sep 17, 2026
12	MPI Offshore	Strong evidence	Stokesley, United KingdomHQ checked Sep 17, 2026	51-200	110 contacts →
	Strong evidence “We furnish all-round solutions, including engineering, procurement, and construction in the full value chain of offshore wind and adjacent marine construction activities.” Source: RevenueBase Database · checked Sep 17, 2026
13	LDD Large Diameter Drilling - Menck	Partial evidence	Camborne, United KingdomHQ checked Sep 17, 2026	51-200	103 contacts →
	Partial evidence “LDD is your global marine foundation specialist with a successful, proven track record.” Source: RevenueBase Database · checked Sep 17, 2026
14	Vroom Foundation Technology	Strong evidence	Oosthuizen, NetherlandsHQ checked Sep 17, 2026	201-500	97 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
15	Principle Power	Partial evidence	Emeryville, CA, United StatesHQ checked Sep 17, 2026	51-200	95 contacts →
	Partial evidence “Principle Power is a global leader in floating wind technology, providing full lifecycle engineering services that deliver reliable, de-risked, and bankable solutions.” Source: RevenueBase Database · checked Sep 17, 2026
16	Volker Staal EN Funderingen	Partial evidence	Dordrecht, NetherlandsHQ checked Sep 17, 2026	51-200	84 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
17	KCI Offshore Engineering	Partial evidence	Rotterdam, NetherlandsHQ checked Sep 17, 2026	51-200	78 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
18	ECE Offshore	Strong evidence	Delft, NetherlandsHQ checked Sep 17, 2026	11-50	55 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
19	Keystone Tower Systems	Partial evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	51-200	37 contacts →
	Partial evidence “Keystone Tower Systems is a rapidly growing company developing a new manufacturing process for wind turbine towers.” Source: RevenueBase Database · checked Sep 17, 2026
20	Enersea BV	Partial evidence	Schiedam, NetherlandsHQ checked Sep 17, 2026	11-50	36 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
21	Arcelormittal Energy Projects	Indirect evidence	Heijningen, MexicoHQ checked Sep 17, 2026	n/a	31 contacts →
	Indirect evidence “Energy Projects brings a dedicated team of global specialists and smart steel solutions to the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
22	Pileworks	Partial evidence	Magnolia, TX, United StatesHQ checked Sep 17, 2026	11-50	31 contacts →
	Partial evidence “We are a full-scale manufacturer of piling products and pile componentry, servicing multiple Industries from Transmission and Distribution, Building Trades, Oil & Gas, and DOT.” Source: RevenueBase Database · checked Sep 17, 2026
23	Marine Power Systems LTD MPS	Indirect evidence	Swansea, United KingdomHQ checked Sep 17, 2026	11-50	30 contacts →
	Indirect evidence “Marine Power Systems’ core platform solution, PelaFlex, includes both hybrid and fully floating variants, designed to operate across a wide range of water depths.” Source: RevenueBase Database · checked Sep 17, 2026
24	Offshore Independents	Partial evidence	Rotterdam, NetherlandsHQ checked Sep 17, 2026	11-50	30 contacts →
	Partial evidence “Offshore Independents is a leading offshore engineering and consultancy firm.” Source: RevenueBase Database · checked Sep 17, 2026
25	SPT Offshore	Strong evidence	Woerden, NetherlandsHQ checked Sep 17, 2026	11-50	30 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

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: offshore wind foundation manufacturers. 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 offshore wind foundation manufacturers.
Partial evidence: Its own public description names part of offshore wind foundation manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore wind foundation manufacturers. 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 106 offshore wind foundation manufacturers worldwide

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Offshore wind foundation manufacturers worldwide at a glance

As of Sep 17, 2026

22.8%Verified-email coverage

58.3Average contacts per company

11-50Median size (employees)

6.6%Largest-city concentration · Aberdeen

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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.
Coverage: 3 countries, largest first: the Netherlands, the United Kingdom, the United States. Country and city lists for offshore wind foundation manufacturers are linked below.
What qualifies: Companies worldwide 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.
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, 1,412 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.

Offshore wind foundation manufacturers by location

3 lists · largest first

Every Offshore wind foundation manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 worldwide?

RevenueBase identified 106 offshore wind foundation manufacturers worldwide 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 country has the most offshore wind foundation manufacturers?

The Netherlands leads with 40 companies, followed by the United Kingdom (39) and the United States (27). Every offshore wind foundation manufacturers list by country and city is linked on this page.

Which city has the most offshore wind foundation manufacturers?

Aberdeen leads with 7 headquartered companies, followed by Houston (6) and Rotterdam (5).

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 1,412 verified decision-maker contacts tracked across these 106 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.