Company lists · Data refreshed September 2026

Top 25 Renewable energy venture capital firms based in the United Kingdom

Name: Renewable energy venture capital firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 281 companies tracked

RevenueBase identified 281 renewable energy venture capital firms headquartered in the United Kingdom as of September 2026 and tracks 5,800 professional contacts across them, including 2,699 with verified work emails and 493 with mobile numbers. London is the largest hub.

This list covers renewable energy venture capital firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

281Companies

5,800Contacts tracked

2,699Verified emails

493Mobile numbers

Explore all 281 companies → Free signup · no credit card · 500 free credits

The 25 largest renewable energy venture capital firms based in the United Kingdom

Ranked by team size

Top 25 of 281 renewable energy venture capital firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names renewable energy venture capital firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Lightsource BPStrong evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,114
	“Lightsource bp is working to support a future powered by renewable, affordable and reliable energy that benefits our partners, people and planet.” Source: company website · checked Sep 5, 2026
2	SonnedixStrong evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	563
	“Sonnedix is a global renewable energy company delivering 100% clean electricity directly to customers through a diversified portfolio of solar, wind, and storage assets.” Source: company website · checked Sep 5, 2026
3	Cubico Sustainable InvestmentsStrong evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	406
	“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…” Source: company website · checked Sep 5, 2026
4	Anesco LTDStrong evidence	Aldermaston Nr Reading, United KingdomHQ checked Sep 5, 2026	201-500	216
	“Anesco is a market leader in renewable energy and energy efficiency.” Source: company website · checked Sep 5, 2026
5	LOW CarbonStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	195
	“Low Carbon creates renewable energy to fight climate change.” Source: company website · checked Sep 5, 2026
6	Octopus Energy GenerationPartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	153
	“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.” Source: company website · checked Sep 5, 2026
7	British Solar RenewablesPartial evidence	Shepton Mallet, United KingdomHQ checked Sep 5, 2026	51-200	148
	“Clean energy, powered with purpose.” Source: company website · checked Sep 5, 2026
8	Nextenergy CapitalPartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	83
	“NextEnergy Capital was founded in 2007 to become the leading specialist investment and asset manager in the solar sector.” Source: company website · checked Sep 5, 2026
9	Nala RenewablesStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	81
	“Nala Renewables is a global power and renewable energy business that develops; builds; and operates solar, wind and power storage projects.” Source: company website · checked Sep 5, 2026
10	InnovaStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	77
	“Innova is a forward-thinking renewable energy business, employing people across two offices in London and Cheltenham.” Source: company website · checked Sep 5, 2026
11	Climate Investment CIPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	62
	“Climate Investment is a US and UK-based independently managed specialist investor focused on accelerating capital-efficient decarbonization of heavy emitting sectors.” Source: company website · checked Sep 5, 2026
12	Aura PowerStrong evidence	Bristol, United KingdomHQ checked Sep 5, 2026	11-50	58
	“Aura Power is a renewable energy investor, developer and adviser.” Source: company website · checked Sep 5, 2026
13	Renewable Power CapitalPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	51
	“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…” Source: company website · checked Sep 5, 2026
14	Bluefield Partners LLPPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	47
	“Founded in 2009, Bluefield Partners LLP is a European renewables specialist, investing across the full lifecycle of greenfield and brownfield opportunities in solar, wind, and…” Source: company website · checked Sep 5, 2026
15	Gore Street CapitalStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	46
	“Gore Street Capital was formed in 2015 as a global platform to acquire and manage renewable energy assets.” Source: company website · checked Sep 5, 2026
16	National EnergyStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	41
	“Founded in 2018 by ambitious entrepreneurs, National Energy is a US-backed, privately funded group active globally across the renewable energy sector.” Source: company website · checked Sep 5, 2026
17	GreenfieldPartial evidence	Kings Cross, United KingdomHQ checked Sep 5, 2026	11-50	41
	“Greenfield specialise in the investment, development and delivery of sustainable and renewable-led infrastructure projects.” Source: company website · checked Sep 5, 2026
18	Deepbridge CapitalIndirect evidence	Chester, United KingdomHQ checked Sep 5, 2026	11-50	37
	“Deepbridge only invests in sectors in which our team has experience.” Source: company website · checked Sep 5, 2026
19	Asper Investment ManagementPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	32
	“Asper Investment Management is a leading specialist investment management firm focused on building large-scale sustainable energy platforms.” Source: company website · checked Sep 5, 2026
20	AP VenturesStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	31
	“AP Ventures is an independent venture capital firm headquartered in London, with offices in San Francisco and South Africa.” Source: company website · checked Sep 5, 2026
21	Olympus Power LTDPartial evidence	Exeter, United KingdomHQ checked Sep 5, 2026	11-50	31
	“Zero Carbon Together means we're helping you own your energy.” Source: company website · checked Sep 5, 2026
22	ETF PartnersStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	29
	“Founded in 2005, ETF Partners (The Environmental Technologies Fund) stands as Europe's original venture capital firm dedicated to sustainability and impact investing.” Source: company website · checked Sep 5, 2026
23	Hive EnergyPartial evidence	East Wellow, United KingdomHQ checked Sep 5, 2026	201-500	29
	“Hive Energy is on a mission to save the planet.” Source: company website · checked Sep 5, 2026
24	Zestec Renewable EnergyStrong evidence	Bournemouth, United KingdomHQ checked Sep 5, 2026	11-50	28
	“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…” Source: company website · checked Sep 5, 2026
25	Larkfleet Group Part Of Phoenix Sustainable InvestmentsPartial evidence	Bourne, United KingdomHQ checked Sep 5, 2026	11-50	26
	“Larkfleet Group is now a part of Phoenix Sustainable Investments - an award-winning developer of sustainable energy projects.” Source: company website · checked Sep 5, 2026

Showing 25 of 281 renewable energy venture capital firms based in the United Kingdom

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Renewable energy venture capital firms based in the United Kingdom at a glance

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 153 HQs

493Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

159

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

2,538

31–60

143

61–90

90–180

180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among renewable energy venture capital firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

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: Companies headquartered in the United Kingdom whose own description of what they do matches “renewable energy venture capital firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among renewable energy venture capital firms, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 2,699 across the full list. 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 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Renewable energy venture capital firms by metro

Renewable energy venture capital firms in London153

Frequently asked

How many renewable energy venture capital firms are there based in the United Kingdom?

RevenueBase identified 281 renewable energy venture capital firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Lightsource BP, headquartered in London, tops this list with the largest team on record.

Which city has the most renewable energy venture capital firms?

London leads with 153 headquartered companies, followed by Bristol (5) and Birmingham (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,699 verified decision-maker contacts tracked across these 281 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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Renewable energy venture capital firms by geography

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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.