Company lists · Data refreshed September 2026

Top 25 Coastal energy developers worldwide

RevenueBase identified 293 coastal energy developers worldwide as of September 2026 and tracks 22,816 professional contacts across them, including 8,565 with verified work emails and 0 with mobile numbers. The United Kingdom is the largest market and London the largest hub.

This list covers coastal energy 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 16, 2026. Country and city lists for coastal energy 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 16, 2026 86% judged on-target in blind review
293Companies
22,816Contacts tracked
8,565Verified emails
0Mobile numbers
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The 25 largest coastal energy developers worldwide

Ranked by team size
Top 25 of 293 coastal energy developers worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to coastal energy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, United KingdomHQ checked Sep 16, 202610001+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 16, 2026
2Strong evidencePerth, United KingdomHQ checked Sep 16, 20261,001-5,0001,900 contacts →

Strong 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 16, 2026
3Partial evidenceOslo, NorwayHQ checked Sep 16, 2026501-1,0001,205 contacts →

Partial 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 16, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 16, 20261,001-5,0001,114 contacts →

Partial 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 16, 2026
5Partial evidenceParis, FranceHQ checked Sep 16, 2026501-1,000365 contacts →

Partial evidence

“DORIS is a leader in the provision of engineering, advisory, and project management services to the energy industry.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceFuveau, FranceHQ checked Sep 16, 2026201-500264 contacts →

Indirect evidence

“Fondé en 2008, au cœur de la région PACA, Tenergie est un producteur indépendant d’énergies renouvelables : nos 500 centrales solaires et éoliennes ont produit plus de 250 GWh en…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceCourbevoie, FranceHQ checked Sep 16, 2026n/a191 contacts →

Indirect evidence

“Les Éoliennes en Mer Services, a consortium of ENGIE, EDP Renewables, Sumitomo Corporation and Caisse des Dépôts, are developing two offshore wind farm projects off the islands of…”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 16, 202651-200185 contacts →

Partial evidence

“The Renewable Energy Consultants.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceParis, FranceHQ checked Sep 16, 2026201-500176 contacts →

Partial evidence

“Aventa empowers the Marine Energy market with the sharpest skills to help design a bluer future.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 16, 202651-200175 contacts →

Partial evidence

“Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceBoulogne-billancourt, FranceHQ checked Sep 16, 202651-200162 contacts →

Indirect evidence

“Créée en France en 2002, wpd France développe, finance, construit et exploite des parcs éoliens terrestres et en mer, ainsi que des parcs photovoltaïques.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceEdinburgh, United KingdomHQ checked Sep 16, 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 16, 2026
13Partial evidenceShepton Mallet, United KingdomHQ checked Sep 16, 202651-200148 contacts →

Partial evidence

“Clean energy, powered with purpose.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceBegles, FranceHQ checked Sep 16, 202651-200136 contacts →

Indirect evidence

“VALEMO est spécialisée dans l’EXPLOITATION, la MAINTENANCE et la SUPERVISION de parcs d’énergies renouvelables ON et OFFSHORE.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceOust-marest, FranceHQ checked Sep 16, 202651-200128 contacts →

Indirect evidence

“Acteur indépendant des énergies renouvelables depuis plus de 20 ans, nous développons des parcs éoliens, des centrales photovoltaïques ainsi que des solutions de stockage…”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceOosterhout, NetherlandsHQ checked Sep 16, 202651-200118 contacts →

Partial evidence

“Jack-Up Barge constructs sustainable offshore energy.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 16, 2026501-1,000117 contacts →

Partial evidence

“EDF Renewables is part of one of the world’s leading renewable energy companies in the UK.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceMontpellier, FranceHQ checked Sep 16, 202651-200108 contacts →

Indirect evidence

“Elements produit de l'électricité verte à partir de centrales photovoltaïques, éoliennes et hydro avec pour ambition de synchroniser la consommation des territoires avec leur mix…”

Source: RevenueBase Database · checked Sep 16, 2026
19Strong evidenceNew Bedford, MA, United StatesHQ checked Sep 16, 202651-20098 contacts →

Strong evidence

“Vineyard Wind is well underway in developing the nation's first utility-scale offshore wind energy project over 15 miles off the coast of Massachusetts.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceSwindon, United KingdomHQ checked Sep 16, 2026501-1,00094 contacts →

Partial 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 16, 2026
21Partial evidencePortland, OR, United StatesHQ checked Sep 16, 202651-20091 contacts →

Partial evidence

“The open ocean is Earth’s largest and most power-dense renewable energy resource.”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceStromness, United KingdomHQ checked Sep 16, 202651-20069 contacts →

Partial 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 16, 2026
23Strong evidenceBillingham, United KingdomHQ checked Sep 16, 2026201-50069 contacts →

Strong evidence

“ABLE is a leading Land Developer of acres with acres of prime consented land available with 3GW+ electric capacity, ideal for Renewable Energy, AI Data Centres or Industrial Use.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceBoston, MA, United StatesHQ checked Sep 16, 202651-20060 contacts →

Indirect evidence

“We envision a future powered by offshore wind-built for communities and shared success.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidencePortland, ME, United StatesHQ checked Sep 16, 202611-5057 contacts →

Partial evidence

“Proven and reliable underwater power systems that generate energy from free-flowing tides and rivers, ORPC improves people’s lives and their environment through sustainable energy…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 293 coastal energy developers worldwide

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Coastal energy developers worldwide at a glance

As of Sep 16, 2026
37.5%Verified-email coverage
77.9Average contacts per company
11-50Median size (employees)
9.9%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
144
11-50
95
51-200
33
201-500
6
501-1,000
8
1,001-5,000
4
5,001-10,000
1
10001+
1

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 coastal energy 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
5 countries, largest first: the United Kingdom, the United States, France, the Netherlands, Norway. Country and city lists for coastal energy developers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “coastal energy 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 coastal energy 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 coastal energy 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, 8,565 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 16, 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.

Coastal energy developers by location

5 lists · largest first

Every Coastal energy 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 coastal energy 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 coastal energy developers are there worldwide?

RevenueBase identified 293 coastal energy 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 coastal energy developers?

The United Kingdom leads with 120 companies, followed by the United States (73) and France (37). Every coastal energy developers list by country and city is linked on this page.

Which city has the most coastal energy developers?

London leads with 29 headquartered companies, followed by Edinburgh (18) and Oslo (7).

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 8,565 verified decision-maker contacts tracked across these 293 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 16, 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.