Company lists · Data refreshed September 2026

Top 25 Offshore wind developers worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,179 companies tracked

RevenueBase identified 1,179 offshore wind developers worldwide as of September 2026 and tracks 102,717 professional contacts across them, including 33,671 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers offshore wind developers 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 20, 2026. Country and city lists for offshore wind developers 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 20, 2026 86% judged on-target in blind review

1,179Companies

102,717Contacts tracked

33,671Verified emails

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The 25 largest offshore wind developers worldwide

Ranked by team size

Top 25 of 1,179 offshore wind developers worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore wind developers: 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	Subsea7	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	10001+	12,645 contacts →
	Partial evidence “Subsea7 makes offshore energy transition possible through the continuous evolution of lower-carbon oil and gas and by enabling the growth of renewables and emerging energy.” Source: RevenueBase Database · checked Sep 20, 2026
2	RWE	Indirect evidence	Essen, GermanyHQ checked Sep 20, 2026	10001+	11,181 contacts →
	Indirect evidence “RWE is leading the way to a modern energy world.” Source: RevenueBase Database · checked Sep 20, 2026
3	SBM Offshore	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	5,001-10,000	8,478 contacts →
	Partial evidence “SBM Offshore is the world’s deepwater ocean-infrastructure expert.” Source: RevenueBase Database · checked Sep 20, 2026
4	Ørsted	Strong evidence	Fredericia, United StatesHQ checked Sep 20, 2026	5,001-10,000	7,538 contacts →
	Strong evidence “Ørsted is the global leader in offshore wind power and is one of the largest renewable energy companies in the world.” Source: RevenueBase Database · checked Sep 20, 2026
5	Nordex Group	Partial evidence	Hamburg, GermanyHQ checked Sep 20, 2026	10001+	6,768 contacts →
	Partial evidence “The development, manufacture, project management and servicing of wind turbines in the onshore segment has been the core competence and passion of the Nordex Group and its more…” Source: RevenueBase Database · checked Sep 20, 2026
6	Enel Green Power	Indirect evidence	Roma, ItalyHQ checked Sep 20, 2026	5,001-10,000	5,251 contacts →
	Indirect evidence “We are the Enel Group company dedicated to the development and management of renewable energy generation worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
7	Adani Green Energy LTD	Indirect evidence	United StatesHQ checked Sep 20, 2026	1,001-5,000	3,017 contacts →
	Indirect evidence “Adani Green Energy Limited (AGEL) is India’s largest renewable energy company playing a vital role in enabling the clean energy transition.” Source: RevenueBase Database · checked Sep 20, 2026
8	Greenko Group	Partial evidence	Hyderabad, IndiaHQ checked Sep 20, 2026	1,001-5,000	2,578 contacts →
	Partial evidence “Greenko, is one of the World’s leading Energy Transition and Decarbonization solutions company, with an installed Renewable Energy capacity of ~7.5 GW across Wind, Solar and Hydro…” Source: RevenueBase Database · checked Sep 20, 2026
9	Goldwind	Indirect evidence	Daxing District, ChinaHQ checked Sep 20, 2026	10001+	2,392 contacts →
	Indirect evidence “As a reliable global strategic partner in clean energy, Goldwind is committed Driving a Renewable Future and centering its business on Ecology-Oriented Development+ENERGY industry…” Source: RevenueBase Database · checked Sep 20, 2026
10	Semco Maritime	Indirect evidence	Esbjerg, DenmarkHQ checked Sep 20, 2026	1,001-5,000	1,947 contacts →
	Indirect evidence “To fulfil the vision of a fossil-free future, we need conventional and renewable energy sources to coexist effectively until the day when renewables can fully keep the world…” Source: RevenueBase Database · checked Sep 20, 2026
11	SSE Renewables	Partial evidence	Perth, United KingdomHQ checked Sep 20, 2026	1,001-5,000	1,900 contacts →
	Partial evidence “SSE Renewables is a leading developer and operator of renewable energy generation, headquartered in the UK and Ireland, with a growing presence internationally.” Source: RevenueBase Database · checked Sep 20, 2026
12	EDP Renewables	Partial evidence	Madrid, SpainHQ checked Sep 20, 2026	1,001-5,000	1,815 contacts →
	Partial evidence “EDP Renewables is a global leader in the renewable energy sector and the world’s fourth-largest wind energy producer.” Source: RevenueBase Database · checked Sep 20, 2026
13	Seaway7	Strong evidence	Oslo, NorwayHQ checked Sep 20, 2026	501-1,000	1,205 contacts →
	Strong evidence “Seaway7 Seaway7 is a global leader in the delivery of offshore wind projects, committed to contributing to an efficient and sustainable energy supply for the future.” Source: RevenueBase Database · checked Sep 20, 2026
14	Lightsource BP	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	1,114 contacts →
	Indirect evidence “Lightsource bp is working to support a future powered by renewable, affordable and reliable energy that benefits our partners, people and planet.” Source: RevenueBase Database · checked Sep 20, 2026
15	Zelestra	Indirect evidence	SpainHQ checked Sep 20, 2026	501-1,000	929 contacts →
	Indirect evidence “At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.” Source: RevenueBase Database · checked Sep 20, 2026
16	ABO Energy	Strong evidence	Wiesbaden, GermanyHQ checked Sep 20, 2026	1,001-5,000	785 contacts →
	Strong evidence “Founded in 1996, ABO Energy (fomerly known as ABO Wind) is among Europe’s leading developers of renewable energy projects.” Source: RevenueBase Database · checked Sep 20, 2026
17	Juwi Group	Indirect evidence	Wörrstadt, GermanyHQ checked Sep 20, 2026	1,001-5,000	785 contacts →
	Indirect evidence “For 30 years, we have been one of the leading specialists in renewable energies, offering complete project development and other services related to the planning, construction…” Source: RevenueBase Database · checked Sep 20, 2026
18	Cadeler	Strong evidence	Copenhagen V, DenmarkHQ checked Sep 20, 2026	1,001-5,000	750 contacts →
	Strong evidence “Cadeler is a pure-play offshore wind installation partner and the global leader in turbine transport and installation, operating the world’s largest fleet of heavy-lift jack-up…” Source: RevenueBase Database · checked Sep 20, 2026
19	European Energy	Strong evidence	Søborg, DenmarkHQ checked Sep 20, 2026	501-1,000	704 contacts →
	Strong evidence “European Energy develops, finances, constructs and operates onshore and offshore wind and solar farms, Power-to-X facilities and Battery Energy Storage Systems.” Source: RevenueBase Database · checked Sep 20, 2026
20	ERG SPA	Indirect evidence	Genova, ItalyHQ checked Sep 20, 2026	501-1,000	636 contacts →
	Indirect evidence “We are a leading independent operator of clean energy from renewable sources, operating in nine European countries and in the United States.” Source: RevenueBase Database · checked Sep 20, 2026
21	Energia	Indirect evidence	Navan Road, IrelandHQ checked Sep 20, 2026	501-1,000	602 contacts →
	Indirect evidence “Energia is proud to be the longest supplier of 100% green electricity on the island of Ireland.” Source: RevenueBase Database · checked Sep 20, 2026
22	OW Ocean Winds	Strong evidence	Madrid, SpainHQ checked Sep 20, 2026	501-1,000	595 contacts →
	Strong evidence “Ocean Winds (OW) is an international company dedicated to offshore wind, leading a new era of clean energy by turning ocean winds into power that lights up homes, businesses, and…” Source: RevenueBase Database · checked Sep 20, 2026
23	Q Energy	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	201-500	565 contacts →
	Indirect evidence “Q ENERGY is Europe’s 360° green energy company.” Source: RevenueBase Database · checked Sep 20, 2026
24	Sonnedix	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	563 contacts →
	Partial evidence “Sonnedix is a global renewable energy company delivering 100% clean electricity directly to customers through a diversified portfolio of solar, wind, and storage assets.” Source: RevenueBase Database · checked Sep 20, 2026
25	Ox2	Strong evidence	Stockholm, SwedenHQ checked Sep 20, 2026	201-500	501 contacts →
	Strong evidence “OX2 develops, constructs, manages, and owns renewable energy solutions at scale, including onshore wind, offshore wind, solar power, and energy storage.” 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: offshore wind developers. 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 developers.
Partial evidence: Its own public description names part of offshore wind developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore wind developers. 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 1,179 offshore wind developers worldwide

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Offshore wind developers worldwide at a glance

As of Sep 20, 2026

32.8%Verified-email coverage

87.1Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

458

11-50

420

51-200

175

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 developers, 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: Every country. Country and city lists for offshore wind developers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “offshore wind developers”. 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 developers), 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 developers, 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, 33,671 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.

Offshore wind developers by location

19 lists · largest first

Every Offshore wind developers 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 developers, 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 developers are there worldwide?

RevenueBase identified 1,179 offshore wind developers 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?

Subsea7, headquartered in London, tops this list with the largest team on record.

Which country has the most offshore wind developers?

The United Kingdom leads with 190 companies, followed by Germany (107) and the United States (88). Every offshore wind developers list by country and city is linked on this page.

Which city has the most offshore wind developers?

London leads with 48 headquartered companies, followed by Edinburgh (26) and Hamburg (24).

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 33,671 verified decision-maker contacts tracked across these 1,179 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.