Company lists · Data refreshed October 2026

Top 25 Geothermal energy investment funds based in the United Kingdom

Name: Geothermal 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 Oct 13, 2026 121 companies tracked

RevenueBase identified 121 company matches for geothermal energy investment funds associated with the United Kingdom as of October 2026 and tracks 1,513 professional contacts across them, including 731 with verified work emails. London is the largest hub.

This list covers company matches for geothermal 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 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

121Companies

1,513Contacts tracked

731Verified emails

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

Ranked by team size

Top 25 of 121 company matches for geothermal energy investment funds 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Octopus Energy Generation	Exact match	London, United KingdomHQ recorded Oct 13, 2026	201-500	167 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
2	Schroders Greencoat LLP	Exact match	London, United KingdomHQ recorded Oct 13, 2026	51-200	130 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 · Oct 13, 2026 · View company records in RevenueBase
3	Private Energy Partners	Exact match	Swindon, United KingdomHQ recorded Oct 13, 2026	51-200	90 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 · Oct 13, 2026 · View company records in RevenueBase
4	Star Energy Group PLC	Exact match	Sudbrooke, United KingdomHQ recorded Oct 13, 2026	51-200	80 contacts →
	Exact match “Star Energy Group plc is a British energy business.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5	Nextenergy Capital	Exact match	London, United KingdomHQ recorded Oct 13, 2026	201-500	75 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
6	Aura Power	Exact match	Bristol, United KingdomHQ recorded Oct 13, 2026	11-50	59 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
7	Nexta Capital Partners	Exact match	London, United KingdomHQ recorded Oct 13, 2026	51-200	58 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
8	Gore Street Capital	Exact match	London, United KingdomHQ recorded Oct 13, 2026	11-50	44 contacts →
	Exact match “Gore Street Capital was formed in 2015 as a global platform to acquire and manage renewable energy assets.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9	National Energy	Exact match	London, United KingdomHQ recorded Oct 13, 2026	51-200	39 contacts →
	Exact match “Founded in 2018 by ambitious entrepreneurs, National Energy is a US-backed, privately funded group active globally across the renewable energy sector.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10	Greenfield	Exact match	Kings Cross, United KingdomHQ recorded Oct 13, 2026	11-50	38 contacts →
	Exact match “Greenfield specialise in the investment, development and delivery of sustainable and renewable-led infrastructure projects.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11	Zouk Capital LLP	Exact match	London, United KingdomHQ recorded Oct 13, 2026	11-50	34 contacts →
	Exact match “Zouk Capital is a fund manager focused on the opportunities emerging at the intersection of infrastructure, technology and sustainability.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12	Renewable Power Capital	Exact match	London, United KingdomHQ recorded Oct 13, 2026	51-200	32 contacts →
	Exact match “We invest in the development, construction, and long-term ownership of solar, onshore wind and battery storage projects, enabling the energy transition and driving stable…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13	Hive Energy	Exact match	East Wellow, United KingdomHQ recorded Oct 13, 2026	201-500	29 contacts →
	Exact match “Hive Energy is on a mission to save the planet.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14	Asper Investment Management	Exact match	London, United KingdomHQ recorded Oct 13, 2026	11-50	27 contacts →
	Exact match “Asper Investment Management is a leading specialist investment management firm focused on building large-scale sustainable energy platforms.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15	Larkfleet Group Part Of Phoenix Sustainable Investments	Exact match	Bourne, United KingdomHQ recorded Oct 13, 2026	11-50	27 contacts →
	Exact match “Larkfleet Group is now a part of Phoenix Sustainable Investments - an award-winning developer of sustainable energy projects.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16	Zestec Renewable Energy	Exact match	Bournemouth, United KingdomHQ recorded Oct 13, 2026	11-50	27 contacts →
	Exact match “Owned by funds advised by Octopus Energy Generation, one of Europe’s largest renewable energy investors currently managing renewable assets totalling more than £5bn, we are…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17	Electric Land	Exact match	London, United KingdomHQ recorded Oct 13, 2026	11-50	26 contacts →
	Exact match “Since 2015 we have become a dominant investor in the rapidly expanding land for energy market, in particular, reserve power generation and storage facilities.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18	Pash Global	Exact match	London, United KingdomHQ recorded Oct 13, 2026	11-50	25 contacts →
	Exact match “PASH GLOBAL (“PASH”) is an impact investor in the clean energy sector.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19	Glennmont Partners From Nuveen	Exact match	London, United KingdomHQ recorded Oct 13, 2026	51-200	19 contacts →
	Exact match “Glennmont Partners is one of Europe’s largest fund managers focusing exclusively on investment in clean energy infrastructure.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
20	Privilege Finance	Exact match	Stretham, United KingdomHQ recorded Oct 13, 2026	11-50	18 contacts →
	Exact match “Privilege Finance is a specialist funder with over 20 years’ experience in financing projects which reduce carbon and mitigate against climate change.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21	Clean Energy Transition LLP	Exact match	London, United KingdomHQ recorded Oct 13, 2026	11-50	16 contacts →
	Exact match “Clean Energy Transition LLP is an investment management partnership focused on fundamental equity investing.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22	Victory Hill Capital Partners LLP	Exact match	London, United KingdomHQ recorded Oct 13, 2026	11-50	16 contacts →
	Exact match “Victory Hill is based in London and was founded in May 2020 by an experienced team of energy financiers, that have spun-out of a large established global project finance banking…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23	Geothermal Engineering LTD	Exact match	Redruth, United KingdomHQ recorded Oct 13, 2026	1-10	16 contacts →
	Exact match “GEL has brought the most experienced geothermal engineers together with leading industry partners to develop the UK's first large-scale geothermal energy plant in Cornwall.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24	Townrock Energy	Exact match	Edinburgh City, United KingdomHQ recorded Oct 13, 2026	11-50	16 contacts →
	Exact match “We are an award-winning geothermal company based in Edinburgh, Scotland and a leading specialist in all aspects of the UK’s geothermal resources.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25	Clean Growth Fund	Exact match	London, United KingdomHQ recorded Oct 13, 2026	1-10	15 contacts →
	Exact match “CGF invest in tech innovations that reduce greenhouse gas emissions or improve resource efficiency across power, transport, industry, buildings, waste and water.” Recorded in the RevenueBase company graph · Oct 13, 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 “geothermal 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 121 geothermal energy investment funds based in the United Kingdom

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

As of Oct 13, 2026

48.3%Verified-email coverage

12.5Average contacts per company

1-10Median size (employees)

71.1%Largest-city concentration · London

Oct 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 121 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 “geothermal 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 731 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.

Geothermal energy investment funds by metro

Geothermal energy investment funds in London86

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

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

RevenueBase identified 121 company matches for geothermal energy investment funds 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 Generation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal energy investment funds?

London leads with 86 company records, followed by Bristol (3) and Aberdeen (2).

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 731 professional contacts with verified work emails tracked across these 121 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.