Company lists · Data refreshed September 2026

Top 25 Green energy infrastructure companies based in the United Kingdom

RevenueBase identified 1,403 company matches for green energy infrastructure companies associated with the United Kingdom as of September 2026 and tracks 54,796 professional contacts across them, including 19,124 with verified work emails. London is the largest hub.

This list covers company matches for green energy infrastructure 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 16, 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 16, 2026 How this list was built
1,403Companies
54,796Contacts tracked
19,124Verified emails
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The 25 largest green energy infrastructure companies based in the United Kingdom

Ranked by team size
Top 25 of 1,403 company matches for green energy infrastructure companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 16, 202610001+8,188 contacts →

Exact match

“EDF is leading the charge towards An Electric Britain to help make energy more affordable and sustainable.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchCoventry, United KingdomHQ recorded Sep 16, 202610001+4,343 contacts →

Exact match

“It's on us to make new energy work.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3Exact matchGlasgow, United KingdomHQ recorded Sep 16, 20265,001-10,0004,127 contacts →

Exact match

“Transforming the UK’s energy system, from power to plug.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 16, 20261,001-5,0003,989 contacts →

Exact match

“We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchKings Langley, United KingdomHQ recorded Sep 16, 20261,001-5,0003,721 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 · Sep 16, 2026 · View company records in RevenueBase
6Exact matchPerth, United KingdomHQ recorded Sep 16, 20261,001-5,0001,900 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 · Sep 16, 2026 · View company records in RevenueBase
7Exact matchSelby, United KingdomHQ recorded Sep 16, 20261,001-5,0001,461 contacts →

Exact match

“Drax is enabling a zero carbon, lower cost energy future Drax Group is a renewable and flexible generation energy company engaged in renewable power generation, the production of…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 16, 20261,001-5,0001,114 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 · Sep 16, 2026 · View company records in RevenueBase
9Exact matchLiverpool, United KingdomHQ recorded Sep 16, 20261,001-5,0001,049 contacts →

Exact match

“Clarke Energy, a Rehlko company, specialises in energy efficient, low carbon and flexible energy systems.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchGlasgow, United KingdomHQ recorded Sep 16, 20261,001-5,000766 contacts →

Exact match

“Through our range of innovative energy solutions, we are delivering the future of smart energy – working closely with private and public sector partners to decarbonise the UK…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchManchester, United KingdomHQ recorded Sep 16, 20261,001-5,000692 contacts →

Exact match

“We are Calisen.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 16, 2026501-1,000629 contacts →

Exact match

“We’re Nadara, one of Europe’s largest renewable energy independent power producers.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchStockton On Tees, United KingdomHQ recorded Sep 16, 2026501-1,000617 contacts →

Exact match

“px Group is a fully integrated infrastructure solutions business which delivers net zero and stakeholder success through elite performance in the safety, availability, reliability…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 16, 2026501-1,000563 contacts →

Exact match

“Sonnedix is a global renewable energy company delivering 100% clean electricity directly to customers through a diversified portfolio of solar, wind, and storage assets.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 16, 20261,001-5,000503 contacts →

Exact match

“Atlantica is a sustainable infrastructure company that owns, manages, develops, builds and invests in renewable energy, storage, efficient natural gas and heat, transmission lines…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchChippenham, United KingdomHQ recorded Sep 16, 2026201-500456 contacts →

Exact match

“Good Energy has been driving the UK’s renewable energy revolution since helping homes and businesses become greener and more self-sufficient through clean power and green…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 16, 2026501-1,000406 contacts →

Exact match

“Cubico Sustainable Investments is one of the world’s largest privately-owned renewable energy companies, leveraging our strong local presence with a unique combination of in-house…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 16, 2026201-500378 contacts →

Exact match

“We do energy, you do you.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 16, 2026201-500336 contacts →

Exact match

“We're Zenobē Energy and we're on a mission to make clean power accessible.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 16, 2026501-1,000242 contacts →

Exact match

“INTEC Energy Solutions delivers best-in-class services in Engineering, Procurement, Construction (EPC), Battery Energy Storage Systems (BESS), Manufacturing, Project Development…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchExeter, United KingdomHQ recorded Sep 16, 202651-200231 contacts →

Exact match

“Ethical Power Group launched in the UK in 2010.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22Exact matchAldermaston Nr Reading, United KingdomHQ recorded Sep 16, 2026201-500216 contacts →

Exact match

“Anesco is a market leader in renewable energy and energy efficiency.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 16, 2026201-500214 contacts →

Exact match

“With a capacity of 3.5GW, we are one of the leading power companies in the UK and Ireland.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-200195 contacts →

Exact match

“Low Carbon creates renewable energy to fight climate change.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchLytham, United KingdomHQ recorded Sep 16, 2026501-1,000190 contacts →

Exact match

“Inenco Group has been acquired by Sustainable Energy First.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 1,403 green energy infrastructure companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 19,124 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Green energy infrastructure companies based in the United Kingdom at a glance

As of Sep 16, 2026
34.9%Verified-email coverage
39.1Average contacts per company
11-50Median size (employees)
24.1%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
676
11-50
506
51-200
137
201-500
27
501-1,000
17
1,001-5,000
18
5,001-10,000
4
10001+
4

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 1,403 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 “green energy infrastructure 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 19,124 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 16, 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 “green energy infrastructure companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many green energy infrastructure companies are there based in the United Kingdom?

RevenueBase identified 1,403 company matches for green energy infrastructure 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?

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

Which city has the most green energy infrastructure companies?

London leads with 338 company records, followed by Glasgow (25) and Edinburgh (24).

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 19,124 professional contacts with verified work emails tracked across these 1,403 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 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 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.