Company lists · Data refreshed November 2026

Top 25 Renewable offshore energy developers worldwide

Name: Renewable offshore energy developers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 4,301 companies tracked

RevenueBase identified 4,301 company matches for renewable offshore energy developers worldwide as of November 2026 and tracks 207,722 professional contacts across them, including 70,581 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for renewable offshore energy developers worldwide, 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 November 6, 2026. Country and city lists for renewable offshore energy developers follow the table.

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 Nov 6, 2026 How this list was built

4,301Companies

207,722Contacts tracked

70,581Verified emails

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The 25 largest renewable offshore energy developers worldwide

Ranked by team size

Top 25 of 4,301 company matches for renewable offshore energy developers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 2026	10001+	13,467 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 · Nov 6, 2026 · View company records in RevenueBase
2	RWE	Exact match	Essen, GermanyHQ recorded Nov 6, 2026	10001+	11,702 contacts →
	Exact match “RWE is leading the way to a modern energy world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	SBM Offshore	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	5,001-10,000	9,397 contacts →
	Exact match “SBM Offshore is the world’s deepwater ocean-infrastructure expert.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Ørsted	Exact match	Fredericia, United StatesHQ recorded Nov 6, 2026	5,001-10,000	7,417 contacts →
	Exact match “Ørsted is the global leader in offshore wind power and is one of the largest renewable energy companies in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Lamprell	Exact match	Sharjah, United Arab EmiratesHQ recorded Nov 6, 2026	5,001-10,000	6,498 contacts →
	Exact match “With 50 years of experience, Lamprell is a key player in the global offshore wind and oil & gas markets, delivering high-quality, complex energy infrastructure projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Enel Green Power	Exact match	Rome, ItalyHQ recorded Nov 6, 2026	5,001-10,000	5,313 contacts →
	Exact match “We are the Enel Group company dedicated to the development and management of renewable energy generation worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	GALP	Exact match	Alcântara, PortugalHQ recorded Nov 6, 2026	5,001-10,000	5,261 contacts →
	Exact match “Galp is an energy company committed to the development of efficient solutions in its operations and in the integrated services it offers to customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Deme Group	Exact match	Beveren-kruibeke-zwijndrecht, BelgiumHQ recorded Nov 6, 2026	5,001-10,000	4,731 contacts →
	Exact match “DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging and marine infrastructure, and environmental remediation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	RES	Exact match	Kings Langley, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	3,964 contacts →
	Exact match “RES is the world’s largest independent renewable energy company, working across 24 countries and active in wind, solar, energy storage, green hydrogen, transmission, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	IDEX	Exact match	Boulogne-billancourt, FranceHQ recorded Nov 6, 2026	5,001-10,000	3,530 contacts →
	Exact match “Fondé en France en 1963, le groupe IDEX, fort de près de 6 500 collaborateurs, développe, conçoit, finance, construit et exploite des infrastructures énergétiques locales et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Greenko Group	Exact match	Hyderabad, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,737 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Acme Group	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,501 contacts →
	Exact match “ACME Group is one of the leading global sustainable and renewable energy companies and a beacon of innovation in the sustainable energy landscape for the past 2 decades.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Semco Maritime	Exact match	Esbjerg, DenmarkHQ recorded Nov 6, 2026	1,001-5,000	2,116 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	SSE Renewables	Exact match	Perth, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,375 contacts →
	Exact match “SSE Renewables is a leading developer and operator of renewable energy generation, headquartered in the UK and Ireland, with a growing presence internationally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Voltalia	Exact match	Paris, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,327 contacts →
	Exact match “Voltalia is an international player in renewable energies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Scatec ASA	Exact match	Oslo, NorwayHQ recorded Nov 6, 2026	501-1,000	1,259 contacts →
	Exact match “Scatec is a leading renewable energy solutions provider, accelerating access to reliable and affordable clean energy in emerging markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Seaway7	Exact match	Oslo, NorwayHQ recorded Nov 6, 2026	501-1,000	1,254 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Lightsource BP	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,135 contacts →
	Exact match “Lightsource bp is working to support a future powered by renewable, affordable and reliable energy that benefits our partners, people and planet.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	CTG Brasil	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	501-1,000	1,060 contacts →
	Exact match “Na CTG Brasil, trabalhamos por um único propósito: desenvolver o mundo com energia limpa em larga escala.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Casa DOS Ventos Energias Renováveis	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	501-1,000	1,053 contacts →
	Exact match “A Casa dos Ventos é uma empresa brasileira que desenvolve, constrói e opera projetos de geração de energia a partir de fontes renováveis e tem atuado como protagonista na…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Zelestra	Exact match	Spain, United StatesHQ recorded Nov 6, 2026	501-1,000	1,008 contacts →
	Exact match “At Zelestra, we are on a mission to change the world by making decarbonization a reality for our partners.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Yinson	Exact match	Kuala Lumpur, MalaysiaHQ recorded Nov 6, 2026	1,001-5,000	980 contacts →
	Exact match “Passionately delivering powerful solutions” Yinson Holdings Berhad (“Yinson”) is a global energy infrastructure company, listed on the Main Market of Bursa Malaysia Securities…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Wanzek Construction, Inc., A Mastec Company	Exact match	Fargo, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	977 contacts →
	Exact match “Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Cadeler	Exact match	Copenhagen V, DenmarkHQ recorded Nov 6, 2026	1,001-5,000	913 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Boralex INC	Exact match	Kingsey Falls, QC, CanadaHQ recorded Nov 6, 2026	501-1,000	856 contacts →
	Exact match “At Boralex, we have been providing affordable renewable energy accessible to everyone for over 30 years.” Recorded in the RevenueBase company graph · Nov 6, 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 “renewable offshore energy developers”. 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 4,301 renewable offshore energy developers worldwide

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Renewable offshore energy developers worldwide at a glance

As of Nov 6, 2026

34.0%Verified-email coverage

48.3Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

1,790

11-50

1,546

51-200

577

201-500

182

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

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.
Coverage: Every country. Country and city lists for renewable offshore energy developers are linked below.
What qualifies: Company records worldwide whose business descriptions match “renewable offshore energy developers” 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. 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 70,581 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 November 6, 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.

Renewable offshore energy developers by location

35 lists · largest first

Every Renewable offshore energy developers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “renewable offshore energy developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable offshore energy developers are there worldwide?

RevenueBase identified 4,301 company matches for renewable offshore energy developers worldwide as of November 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 country has the most renewable offshore energy developers?

The United States leads with 516 companies, followed by the United Kingdom (413) and Germany (275). Every renewable offshore energy developers list by country and city is linked on this page.

Which city has the most renewable offshore energy developers?

London leads with 107 company records, followed by Madrid (57) and Warsaw (41).

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 70,581 professional contacts with verified work emails tracked across these 4,301 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 November 6, 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 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.