Company lists · Data refreshed September 2026
Top 25 Floating offshore wind companies based in the United Kingdom
RevenueBase identified 148 floating offshore wind companies headquartered in the United Kingdom as of September 2026 and tracks 19,204 professional contacts across them, including 6,469 with verified work emails. London is the largest hub.
This list covers floating offshore wind companies headquartered in the United Kingdom, 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.
The 25 largest floating offshore wind companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,900 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 955 contacts → | ||||
Partial evidence “Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 175 contacts → | ||||
Strong evidence “Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 171 contacts → | ||||
Indirect evidence “Osbit’s vision is to unlock a clean energy future by creating smarter technology.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 154 contacts → | ||||
Strong evidence “Flotation Energy Ltd delivers clean, green, renewable energy by using our expertise in floating and fixed offshore wind and the energy transition, supporting achievement of…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 122 contacts → | ||||
Indirect evidence “Please follow @Cadeler for more updates.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 119 contacts → | ||||
Strong evidence “RTS Wind Limited specialise in the provision of services to the onshore and offshore renewable energy sector.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 94 contacts → | ||||
Indirect evidence “Innogy Renewables UK Ltd is a leading business in the drive to generate more electricity from low carbon, inexhaustable domestic energy sources.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 72 contacts → | ||||
Partial evidence “CPower Energy was set up in August 2015 to service a wide variety of jobs within both the Construction and O&M phase of Onshore and Offshore Windfarms.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 69 contacts → | ||||
Indirect evidence “Established in 2003, EMEC is the world’s first and leading facility for demonstrating and testing wave and tidal energy converters – technologies that generate electricity by…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 55 contacts → | ||||
Partial evidence “Mainprize Offshore Limited (formally Mainprize Trawling Co Ltd) was formed in 1979 and has operated in the North Sea for over thirty years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 55 contacts → | ||||
Strong evidence “We are a class leading wind farm vessel support operator, operating internationally out of Cowes, UK, with a fleet of fourteen IACS classified multi-purpose offshore energy…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 51 contacts → | ||||
Strong evidence “The Neart na Gaoithe (NnG) offshore wind farm will be located 15.5 km off the Fife coast and covers an area of approximately 105 km2.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 50 contacts → | ||||
Strong evidence “Crondall Energy is an independent offshore energy consultancy specialising in floating and subsea facilities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 48 contacts → | ||||
Strong evidence “Haventus is an energy transition facilities provider, offering pivotal infrastructure for the offshore wind industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 46 contacts → | ||||
Strong evidence “Outer Dowsing Offshore Wind is a 1.5GW project located approximately 54km off the Lincolnshire coast.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 40 contacts → | ||||
Indirect evidence “Belltown Power is an international renewable energy company (IPP).” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 39 contacts → | ||||
Strong evidence “Reventus Power originates and invests in the development and long-term management of offshore wind projects globally.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 38 contacts → | ||||
Partial evidence “Nova are specialists in floating solar EPC and consultancy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 36 contacts → | ||||
Partial evidence “Orbital Marine Power is an innovative Scottish engineering company focused on the development of a low-cost, predictable, scalable floating tidal stream technology.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 36 contacts → | ||||
Strong evidence “Thistle Wind Partners (TWP) is the developer of the Bowdun Offshore Wind Farm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 32 contacts → | ||||
Strong evidence “Ocean Energy Pathway accelerates global offshore wind growth through programmes which support the energy transition, enhance marine ecosystems, and empower local communities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
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: floating offshore wind companies. 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 floating offshore wind companies.
- Partial evidence
- Its own public description names part of floating offshore wind companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name floating offshore wind companies. 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 148 floating offshore wind companies based in the United Kingdom
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Floating offshore wind companies based in the United Kingdom at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 148 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 floating offshore wind companies, 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 United Kingdom whose own description of what they do matches “floating offshore wind companies”. 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 floating offshore wind companies), 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 floating offshore wind companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 6,469 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.
Floating offshore wind companies by metro
- Floating offshore wind companies in London28
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 floating offshore wind companies, 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 floating offshore wind companies are there based in the United Kingdom?
RevenueBase identified 148 floating offshore wind companies headquartered in the United Kingdom 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 city has the most floating offshore wind companies?
London leads with 28 headquartered companies, followed by Edinburgh (18) and Aberdeen (10).
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 6,469 verified decision-maker contacts tracked across these 148 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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Floating offshore wind companies by geography
- Floating offshore wind companies based in Denmark
- Floating offshore wind companies based in France
- Floating offshore wind companies based in Germany
- Floating offshore wind companies based in the Netherlands
- Floating offshore wind companies based in Norway
- Floating offshore wind companies based in Spain
- Floating offshore wind companies based in the United States
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.
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- Floating offshore wind companies based in Denmark
- Floating offshore wind companies based in France
- Floating offshore wind companies based in Germany
- Floating offshore wind companies based in the Netherlands
- Floating offshore wind companies based in Norway
- Floating offshore wind companies based in Spain