Company lists · Data refreshed October 2026

Top 25 Green energy project finance companies based in the United Kingdom

RevenueBase identified 603 company matches for green energy project finance companies associated with the United Kingdom as of October 2026 and tracks 19,863 professional contacts across them, including 7,385 with verified work emails. London is the largest hub.

This list covers company matches for green energy project finance 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 October 13, 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 Oct 13, 2026 How this list was built
603Companies
19,863Contacts tracked
7,385Verified emails
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The 25 largest green energy project finance companies based in the United Kingdom

Ranked by team size
Top 25 of 603 company matches for green energy project finance companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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 Oct 13, 20261,001-5,0004,318 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 · Oct 13, 2026 · View company records in RevenueBase
2Exact matchKings Langley, United KingdomHQ recorded Oct 13, 20261,001-5,0003,875 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 · Oct 13, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 13, 20261,001-5,0001,116 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 · Oct 13, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 13, 2026501-1,000593 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 · Oct 13, 2026 · View company records in RevenueBase
5Exact matchCastle Douglas, United KingdomHQ recorded Oct 13, 2026501-1,000517 contacts →

Exact match

“Natural Power is a leading independent consultancy and service provider for the renewable energy sector.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Oct 13, 2026501-1,000423 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 · Oct 13, 2026 · View company records in RevenueBase
7Exact matchAldermaston Nr Reading, United KingdomHQ recorded Oct 13, 2026201-500204 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 13, 202651-200189 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9Exact matchExeter, United KingdomHQ recorded Oct 13, 202651-200178 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Oct 13, 2026201-500167 contacts →

Exact match

“At Octopus Energy Generation, we’re building green power for the future, from large-scale solar to onshore and offshore wind, and innovative initiatives like the Fan Club.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11Exact matchShepton Mallet, United KingdomHQ recorded Oct 13, 202651-200162 contacts →

Exact match

“Clean energy, powered with purpose.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12Exact matchEdinburgh, United KingdomHQ recorded Oct 13, 202651-200145 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 · Oct 13, 2026 · View company records in RevenueBase
13Exact matchBirmingham, United KingdomHQ recorded Oct 13, 202651-200139 contacts →

Exact match

“Part of the Statkraft group, we provide British businesses with zero carbon, 100% renewable electricity*, sourced solely from Solar, Wind and Hydro.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 13, 202651-20096 contacts →

Exact match

“eEnergy (AIM: EAAS) is a UK-based Energy-as-a-Service (EaaS) provider, funding and delivering energy-saving and energy-generating solutions across multi-site public sector and…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15Exact matchBiggar, United KingdomHQ recorded Oct 13, 202651-20086 contacts →

Exact match

“Green Cat Renewables is a dynamic, innovative, and growing company that provides tailored support to the needs of the individual developer throughout the entire development…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Oct 13, 202651-20079 contacts →

Exact match

“Nala Renewables is a London-headquartered global renewable energy company.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 13, 2026201-50075 contacts →

Exact match

“NextEnergy Capital was founded in 2007 to become the leading specialist investment and asset manager in the solar sector.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 13, 202651-20074 contacts →

Exact match

“Think Outside The Grid.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Oct 13, 202651-20066 contacts →

Exact match

“Our Vision Renewable energy will be the source of power for future generations.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
20Exact matchHampton Hill, United KingdomHQ recorded Oct 13, 202611-5064 contacts →

Exact match

“Genesis Capital has been creating and developing finance programmes for high-tech, energy tech, office fit-outs and other plant and machinery since 1997.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21Exact matchEdinburgh, United KingdomHQ recorded Oct 13, 202651-20061 contacts →

Exact match

“Locogen exists to accelerate the transition to a world powered by renewable energy.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22Exact matchMachynlleth, United KingdomHQ recorded Oct 13, 202651-20061 contacts →

Exact match

“With over 35 years of experience in the clean energy sector, Dulas is an award-winning renewable energy installer and consultancy, specialising in the wind, solar and hydro…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23Exact matchBristol, United KingdomHQ recorded Oct 13, 202611-5059 contacts →

Exact match

“Aura Power is a renewable energy developer and Independent Power Producer (IPP), developing and delivering high-quality solar and battery storage projects that contribute to a…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24Exact matchEdinburgh, United KingdomHQ recorded Oct 13, 202651-20058 contacts →

Exact match

“Red Rock Renewables is an investor, owner, operator and developer of renewable energy projects.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Oct 13, 202651-20058 contacts →

Exact match

“Nexta Capital Partners is a holding company which originates, develops, finances builds and operates renewable infrastructure assets.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

Showing 25 of 603 green energy project finance companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 7,385 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Green energy project finance companies based in the United Kingdom at a glance

As of Oct 13, 2026
37.2%Verified-email coverage
32.9Average contacts per company
1-10Median size (employees)
40.3%Largest-city concentration · London
Oct 13, 2026Page data refreshed

Companies by employee count

1-10
315
11-50
197
51-200
59
201-500
13
501-1,000
6
1,001-5,000
6
10001+
1

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 603 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 project finance 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 7,385 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 October 13, 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.

Green energy project finance companies by metro

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 project finance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 603 company matches for green energy project finance companies associated with the United Kingdom as of October 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?

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

Which city has the most green energy project finance companies?

London leads with 243 company records, followed by Edinburgh (15) and Bristol (11).

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 7,385 professional contacts with verified work emails tracked across these 603 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 October 13, 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.