Company lists · Data refreshed September 2026

Top 25 Offshore power plant operators based in the United Kingdom

RevenueBase identified 65 offshore power plant operators headquartered in the United Kingdom as of September 2026 and tracks 2,113 professional contacts across them, including 755 with verified work emails. London is the largest hub.

This list covers offshore power plant operators 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.

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
65Companies
2,113Contacts tracked
755Verified emails
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The 25 largest offshore power plant operators based in the United Kingdom

Ranked by team size
Top 25 of 65 offshore power plant operators based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore power plant operators: 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
1Indirect evidenceNorthumberland, United KingdomHQ checked Sep 20, 2026201-500171 contacts →

Indirect evidence

“Osbit’s vision is to unlock a clean energy future by creating smarter technology.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceEdinburgh, United KingdomHQ checked Sep 20, 202651-200154 contacts →

Partial 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, 2026
3Indirect evidenceGreat Yarmouth, United KingdomHQ checked Sep 20, 2026201-500122 contacts →

Indirect evidence

“Please follow @Cadeler for more updates.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSwindon, United KingdomHQ checked Sep 20, 2026501-1,00094 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, 2026
5Partial evidenceEdinburgh, United KingdomHQ checked Sep 20, 2026n/a51 contacts →

Partial 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, 2026
6Partial evidenceArdersier, United KingdomHQ checked Sep 20, 202651-20048 contacts →

Partial evidence

“Haventus is an energy transition facilities provider, offering pivotal infrastructure for the offshore wind industry.”

Source: RevenueBase Database · checked Sep 20, 2026
7Strong evidenceLondon, United KingdomHQ checked Sep 20, 202611-5039 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, 2026
8Partial evidenceSwansea, United KingdomHQ checked Sep 20, 202611-5030 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, 2026
9Partial evidenceEdinburgh, United KingdomHQ checked Sep 20, 202611-5023 contacts →

Partial evidence

“Mocean Energy designs and delivers ocean energy technology to provide clean, carbon-free, renewable power.”

Source: RevenueBase Database · checked Sep 20, 2026
10Strong evidencePortland, United KingdomHQ checked Sep 20, 202651-20023 contacts →

Strong evidence

“Manor Renewable Energy (MRE), an OEG Group company, provides temporary power and engineering solutions for the offshore renewables industry.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceCleveland, United KingdomHQ checked Sep 20, 202611-5022 contacts →

Partial evidence

“Correll services are an Electrical installation company serving in the offshore/onshore industry.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceStokesley, United KingdomHQ checked Sep 20, 202611-5021 contacts →

Partial evidence

“Carlton Power Group is an independent, UK energy development company formed in 1995, with offices in Stokesley, North Yorkshire and Edinburgh.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceBristol, United KingdomHQ checked Sep 20, 202611-5021 contacts →

Indirect evidence

“Proteus is an innovative, cutting-edge marine energy business.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceGlasgow, United KingdomHQ checked Sep 20, 202611-5016 contacts →

Partial evidence

“Buchan Offshore Wind is at forefront of the industrialisation of floating offshore wind in Scotland.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“Source Galileo was founded to accelerate the roll-out of large-scale renewable energy projects as part of the energy transition to a sustainable future.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidencePembroke Dock, United KingdomHQ checked Sep 20, 202611-5012 contacts →

Indirect evidence

“Founded in 2012, Bombora is an award-winning ocean energy company from Australia with operational headquarters in Pembrokeshire, Wales.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202611-5012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“Our aim is to lead on scaled floating wind.”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidenceAberdour, United KingdomHQ checked Sep 20, 202611-508 contacts →

Strong evidence

“Cierco is an independent renewable energy project development company established in 2001 with a simple goal - to engage in the field of offshore wind power and to drive…”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceInverness, United KingdomHQ checked Sep 20, 202611-508 contacts →

Indirect evidence

“Our business is marine energy technology: creating, commercialising and delivering enabling technologies and related services to the emerging marine energy sector through R&D…”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceLondon, United KingdomHQ checked Sep 20, 202611-506 contacts →

Partial evidence

“We finance, consent, build and operate renewable and shore power systems specifically designed for the marine sector.”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“Trident Energy is an independent developer of enabling technology for the offshore renewable energy industry.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceEdinburgh, United KingdomHQ checked Sep 20, 202611-504 contacts →

Partial evidence

“RIDG – Renewable Infrastructure Development Group – is an independent, Scottish offshore wind project development company.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Sea Wave Energy LTD (SWEL) is a R&D company focused on the design and development of its wave energy converter – The “Waveline Magnet” (WLM), a wave energy converter that has been…”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceBristol, United KingdomHQ checked Sep 20, 202651-2003 contacts →

Partial evidence

“Founded in 2016, Rovco is a high-technology offshore wind business helping to bring renewable energy to the forefront of the energy mix.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 65 offshore power plant operators based in the United Kingdom

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Offshore power plant operators based in the United Kingdom at a glance

As of Sep 20, 2026
35.7%Verified-email coverage
32.5Average contacts per company
11-50Median size (employees)
16.9%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
22
51-200
12
201-500
3
501-1,000
3

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 65 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 power plant operators, 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 “offshore power plant operators”. 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 power plant operators), 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 power plant operators, 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, 755 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.

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 power plant operators, 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 power plant operators are there based in the United Kingdom?

RevenueBase identified 65 offshore power plant operators 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?

OSBIT, headquartered in United Kingdom, tops this list with the largest team on record.

Which city has the most offshore power plant operators?

London leads with 11 headquartered companies, followed by Edinburgh (8) and Aberdeen (3).

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 755 verified decision-maker contacts tracked across these 65 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.