Company lists · Data refreshed September 2026

Top 25 Renewable energy investment funds based in the United Kingdom

Name: Renewable energy investment funds 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 456 companies tracked

RevenueBase identified 456 company matches for renewable energy investment funds associated with the United Kingdom as of September 2026 and tracks 15,509 professional contacts across them, including 6,689 with verified work emails. London is the largest hub.

This list covers company matches for renewable energy investment funds 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

456Companies

15,509Contacts tracked

6,689Verified emails

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The 25 largest renewable energy investment funds based in the United Kingdom

Ranked by team size

Top 25 of 456 company matches for renewable energy investment funds 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	RES	Exact match	Kings Langley, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	3,721 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 17, 2026 · View company records in RevenueBase
2	Lightsource BP	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	1,114 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 17, 2026 · View company records in RevenueBase
3	Sonnedix	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	563 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 17, 2026 · View company records in RevenueBase
4	Foresight Group	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	537 contacts →
	Exact match “Founded in 1984, Foresight is a leading investment manager in real assets and capital for growth, operating across Europe, Australia, and the United States.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Atlantica Sustainable Infrastructure PLC	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	503 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 17, 2026 · View company records in RevenueBase
6	ACTIS	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	493 contacts →
	Exact match “Actis is a leading growth market investor in sustainable infrastructure.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Cubico Sustainable Investments	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	406 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 17, 2026 · View company records in RevenueBase
8	Downing	Exact match	10 Lower Thames Street, United KingdomHQ recorded Sep 17, 2026	201-500	304 contacts →
	Exact match “Downing is a responsible investment manager established in London in 1986.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Ethical Power	Exact match	Exeter, United KingdomHQ recorded Sep 17, 2026	51-200	231 contacts →
	Exact match “Ethical Power Group launched in the UK in 2010.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Gresham House	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	227 contacts →
	Exact match “Gresham House is a specialist investor focused on delivering financial returns for clients by investing in the global themes shaping our future.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Anesco LTD	Exact match	Aldermaston Nr Reading, United KingdomHQ recorded Sep 17, 2026	201-500	216 contacts →
	Exact match “Anesco is a market leader in renewable energy and energy efficiency.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Octopus Energy Generation	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	153 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 · Sep 17, 2026 · View company records in RevenueBase
13	British Solar Renewables	Exact match	Shepton Mallet, United KingdomHQ recorded Sep 17, 2026	51-200	148 contacts →
	Exact match “Clean energy, powered with purpose.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Schroders Greencoat LLP	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	119 contacts →
	Exact match “Schroders Greencoat is a specialist investment manager dedicated to renewable infrastructure, with over £8.5 billion under management.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Econergy Renewable Energy LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	112 contacts →
	Exact match “Our Vision Renewable energy will be the source of power for future generations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Private Energy Partners	Exact match	Swindon, United KingdomHQ recorded Sep 17, 2026	51-200	84 contacts →
	Exact match “Private Energy Partners (PEP) is an affiliate of Quinbrook, a specialist investment manager focused exclusively on the infrastructure needed to drive the energy and digital…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Nextenergy Capital	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	83 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 · Sep 17, 2026 · View company records in RevenueBase
18	Innova	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	77 contacts →
	Exact match “Innova is a forward-thinking renewable energy business, employing people across two offices in London and Cheltenham.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Sustainable Development Capital, LLP Sdcl	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	74 contacts →
	Exact match “Sustainable Development Capital LLP (“SDCL”) is a multi-national investment and financial advisory firm, which specialises in environmental infrastructure.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Climate Asset Management	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	66 contacts →
	Exact match “Climate Asset Management was formed in 2020 as a joint venture of HSBC Asset Management and Pollination, with the ambition to grow the world’s leading asset management company in…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	RED Rock Renewables	Exact match	Edinburgh, United KingdomHQ recorded Sep 17, 2026	51-200	65 contacts →
	Exact match “Red Rock Renewables is an investor, owner, operator and developer of renewable energy projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	CAMCO	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	65 contacts →
	Exact match “Camco is a climate and impact fund manager, leading the transition to a prosperous net zero future in emerging markets.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Nexta Capital Partners	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	65 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 · Sep 17, 2026 · View company records in RevenueBase
24	Bluefield Services LTD	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	11-50	63 contacts →
	Exact match “Bluefield Services Ltd was established in May 2015 and is currently one of the leading asset management companies in the renewable energy sector in the UK.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Temporis Capital	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	62 contacts →
	Exact match “Temporis was founded in 2011 by three seasoned investment industry professionals.” 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 “renewable energy investment funds”. 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 456 renewable energy investment funds based in the United Kingdom

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Renewable energy investment funds based in the United Kingdom at a glance

As of Sep 17, 2026

43.1%Verified-email coverage

34.0Average contacts per company

11-50Median size (employees)

61.0%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

224

11-50

159

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 456 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 “renewable energy investment funds” 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 6,689 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 “renewable energy investment funds”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy investment funds are there based in the United Kingdom?

RevenueBase identified 456 company matches for renewable energy investment funds 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?

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

Which city has the most renewable energy investment funds?

London leads with 278 company records, followed by Edinburgh (11) and Bristol (7).

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 6,689 professional contacts with verified work emails tracked across these 456 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.

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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.