Company lists · Data refreshed September 2026

Top 25 Marine renewable energy companies based in the United Kingdom

Name: Marine renewable energy companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 235 companies tracked

RevenueBase identified 235 company matches for marine renewable energy companies associated with the United Kingdom as of September 2026 and tracks 16,426 professional contacts across them, including 5,899 with verified work emails. London is the largest hub.

This list covers company matches for marine renewable energy companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

235Companies

16,426Contacts tracked

5,899Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest marine renewable energy companies based in the United Kingdom

Ranked by team size

Top 25 of 235 company matches for marine renewable energy companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Subsea7	Exact match	London, United KingdomHQ recorded Sep 17, 2026	10001+	12,645 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	OWC	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	185 contacts →
	Exact match “The Renewable Energy Consultants.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Wood Thilsted	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	175 contacts →
	Exact match “Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Flotation Energy	Exact match	Edinburgh, United KingdomHQ recorded Sep 17, 2026	51-200	154 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	RTS Wind UK	Exact match	Middlesbrough, United KingdomHQ recorded Sep 17, 2026	51-200	119 contacts →
	Exact match “RTS Wind Limited specialise in the provision of services to the onshore and offshore renewable energy sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	MPI Offshore	Exact match	Stokesley, United KingdomHQ recorded Sep 17, 2026	51-200	110 contacts →
	Exact match “We furnish all-round solutions, including engineering, procurement, and construction in the full value chain of offshore wind and adjacent marine construction activities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Innogy Renewables UK	Exact match	Swindon, United KingdomHQ recorded Sep 17, 2026	501-1,000	94 contacts →
	Exact match “Innogy Renewables UK Ltd is a leading business in the drive to generate more electricity from low carbon, inexhaustable domestic energy sources.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Emec European Marine Energy Centre	Exact match	Stromness, United KingdomHQ recorded Sep 17, 2026	51-200	69 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	NNG Offshore Wind	Exact match	Edinburgh, United KingdomHQ recorded Sep 17, 2026	n/a	51 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Verlume	Exact match	Inverurie, United KingdomHQ recorded Sep 17, 2026	11-50	48 contacts →
	Exact match “Verlume is a leader in intelligent energy management and storage technologies for the energy industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Haventus	Exact match	Ardersier, United KingdomHQ recorded Sep 17, 2026	51-200	48 contacts →
	Exact match “Haventus is an energy transition facilities provider, offering pivotal infrastructure for the offshore wind industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Spectrum	Exact match	Lymington, United KingdomHQ recorded Sep 17, 2026	11-50	41 contacts →
	Exact match “Spectrum specialises in the provision of combined marine survey and crew transfer vessel services to the offshore construction industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Belltown Power	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	11-50	40 contacts →
	Exact match “Belltown Power is an international renewable energy company (IPP).” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Vantage RE LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	39 contacts →
	Exact match “Vantage RE Ltd (Vantage RE), a wholly owned subsidiary of Tenaga Nasional Berhad, has been established to own, develop, operate and manage a portfolio of renewable energy assets…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Reventus Power	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	39 contacts →
	Exact match “Reventus Power originates and invests in the development and long-term management of offshore wind projects globally.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Nova Innovation	Exact match	Edinburgh, United KingdomHQ recorded Sep 17, 2026	11-50	38 contacts →
	Exact match “Nova are specialists in floating solar EPC and consultancy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Orbital Marine Power LTD	Exact match	Kirkwall, United KingdomHQ recorded Sep 17, 2026	11-50	36 contacts →
	Exact match “Orbital Marine Power is an innovative Scottish engineering company focused on the development of a low-cost, predictable, scalable floating tidal stream technology.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Partrac	Exact match	Glasgow, United KingdomHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “We are experts in metocean, floating LiDAR seabed measurement, analyses and critical advice.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Ocean Energy Pathway	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	32 contacts →
	Exact match “Ocean Energy Pathway accelerates global offshore wind growth through programmes which support the energy transition, enhance marine ecosystems, and empower local communities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Leask Marine LTD	Exact match	Kirkwall, United KingdomHQ recorded Sep 17, 2026	11-50	32 contacts →
	Exact match “Leask Marine provide an unprecedented range of uniquely developed processes and equipment to support the mobilisation, deployment, installation, commissioning, service and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Marine Power Systems LTD MPS	Exact match	Swansea, United KingdomHQ recorded Sep 17, 2026	11-50	30 contacts →
	Exact match “Marine Power Systems’ core platform solution, PelaFlex, includes both hybrid and fully floating variants, designed to operate across a wide range of water depths.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	RAD Propulsion	Exact match	Sarisbury Green, United KingdomHQ recorded Sep 17, 2026	11-50	28 contacts →
	Exact match “At RAD, we're redefining what modern vessels can do.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Aratellus	Exact match	Aberdeenshire, United KingdomHQ recorded Sep 17, 2026	11-50	28 contacts →
	Exact match “Aratellus was founded in 2020 to deliver the world’s most advanced seabed investigation and intervention solutions for offshore energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Greenpower Developments LTD	Exact match	Alloa, United KingdomHQ recorded Sep 17, 2026	11-50	25 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Mocean Energy	Exact match	Edinburgh, United KingdomHQ recorded Sep 17, 2026	11-50	23 contacts →
	Exact match “Mocean Energy designs and delivers ocean energy technology to provide clean, carbon-free, renewable power.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “marine renewable energy companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 235 marine renewable energy companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 5,899 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Marine renewable energy companies based in the United Kingdom at a glance

As of Sep 17, 2026

35.9%Verified-email coverage

69.9Average contacts per company

1-10Median size (employees)

17.4%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

123

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 235 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “marine renewable energy companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 5,899 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “marine renewable energy companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine renewable energy companies are there based in the United Kingdom?

RevenueBase identified 235 company matches for marine renewable energy companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Subsea7 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most marine renewable energy companies?

London leads with 41 company records, followed by Edinburgh (23) and Aberdeen (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,899 professional contacts with verified work emails tracked across these 235 companies; direct dials are available where recorded.

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.

Ready to reach these companies? Verified emails and direct dials for all 235 marine renewable energy companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Marine renewable energy companies by geography

Browse the directory

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 SmartSearch, 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.