Company lists · Data refreshed September 2026

Top 25 Venture capital firms focused on climate based in the United Kingdom

Name: Venture capital firms focused on climate based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 411 companies tracked

RevenueBase identified 411 venture capital firms focused on climate headquartered in the United Kingdom as of September 2026 and tracks 3,912 professional contacts across them, including 1,648 with verified work emails and 333 with mobile numbers. London is the largest hub.

This list covers venture capital firms focused on climate 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

411Companies

3,912Contacts tracked

1,648Verified emails

333Mobile numbers

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The 25 largest venture capital firms focused on climate based in the United Kingdom

Ranked by team size

Top 25 of 411 venture capital firms focused on climate based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to venture capital firms focused on climate: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Octopus	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	501-1,000	288 contacts →
	Partial evidence “We encourage you to follow Simon Rogerson, Founder & CEO of Octopus Group: We’re entrepreneurs and we’re investors, on a mission to back the people, ideas and industries that will…” Source: RevenueBase Database · checked Sep 14, 2026
2	Lightrock	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	141 contacts →
	Indirect evidence “Lightrock is a global investment platform supporting the growth of technology-enabled companies.” Source: RevenueBase Database · checked Sep 14, 2026
3	Pollination	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	139 contacts →
	Partial evidence “Pollination is a specialist climate investment and advisory firm, dedicated to accelerating the transition to a net zero, nature positive and resilient future.” Source: RevenueBase Database · checked Sep 14, 2026
4	Index Ventures	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	112 contacts →
	Partial evidence “Index Ventures partners with exceptional entrepreneurs – those with unique insight who are intrinsically driven to make their vision a reality.” Source: RevenueBase Database · checked Sep 14, 2026
5	Octopus Ventures	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	96 contacts →
	Strong evidence “Octopus Ventures, part of Octopus Group, is one of the largest and most active venture capital investors in the UK and Europe.” Source: RevenueBase Database · checked Sep 14, 2026
6	Sustainable Development Capital, LLP Sdcl	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	74 contacts →
	Partial evidence “Sustainable Development Capital LLP (“SDCL”) is a multi-national investment and financial advisory firm, which specialises in environmental infrastructure.” Source: RevenueBase Database · checked Sep 14, 2026
7	Molten Ventures	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	68 contacts →
	Strong evidence “Molten Ventures is a leading venture capital firm in Europe, investing in and developing high growth technology companies.” Source: RevenueBase Database · checked Sep 14, 2026
8	CAMCO	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	65 contacts →
	Partial evidence “Camco is a climate and impact fund manager, leading the transition to a prosperous net zero future in emerging markets.” Source: RevenueBase Database · checked Sep 14, 2026
9	ADA Ventures	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	n/a	63 contacts →
	Strong evidence “Ada Ventures is a pre-seed inclusive venture capital firm.” Source: RevenueBase Database · checked Sep 14, 2026
10	Temporis Capital	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	62 contacts →
	Indirect evidence “Temporis was founded in 2011 by three seasoned investment industry professionals.” Source: RevenueBase Database · checked Sep 14, 2026
11	Climate Investment CI	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	62 contacts →
	Strong evidence “Climate Investment is a US and UK-based independently managed specialist investor focused on accelerating capital-efficient decarbonization of heavy emitting sectors.” Source: RevenueBase Database · checked Sep 14, 2026
12	Future Planet Capital	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	61 contacts →
	Strong evidence “Future Planet is the impact-led, global venture capital firm built to back growth companies emerging from the founders and science from the world's top universities.” Source: RevenueBase Database · checked Sep 14, 2026
13	Aura Power	Indirect evidence	Bristol, United KingdomHQ checked Sep 14, 2026	11-50	58 contacts →
	Indirect evidence “Aura Power is a renewable energy investor, developer and adviser.” Source: RevenueBase Database · checked Sep 14, 2026
14	Just Climate	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	56 contacts →
	Strong evidence “Established by Generation Investment Management, Just Climate is a specialist investment business focused on scaling solutions for the highest-emitting, most off-track sectors of…” Source: RevenueBase Database · checked Sep 14, 2026
15	ARC	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	56 contacts →
	Partial evidence “Arc is a global non‑profit organisation that builds the shared pathways needed to turn climate and resilience ambitions into tangible investment flows.” Source: RevenueBase Database · checked Sep 14, 2026
16	Green Angel Ventures	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	43 contacts →
	Partial evidence “The reference early stage investor for UK climate innovation.” Source: RevenueBase Database · checked Sep 14, 2026
17	Oxygen House Group	Strong evidence	Exeter, United KingdomHQ checked Sep 14, 2026	51-200	40 contacts →
	Strong evidence “Oxygen House focuses on impact investment in data analytics, education, sustainable property development, renewable energy, and city planning, leveraging patient capital for a…” Source: RevenueBase Database · checked Sep 14, 2026
18	Bluewater	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	39 contacts →
	Strong evidence “Bluewater is a specialist international private equity firm focused on the middle-market energy sector.” Source: RevenueBase Database · checked Sep 14, 2026
19	Zouk Capital LLP	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	39 contacts →
	Strong evidence “Zouk Capital is a fund manager focused on the opportunities emerging at the intersection of infrastructure, technology and sustainability.” Source: RevenueBase Database · checked Sep 14, 2026
20	Deepbridge Capital	Indirect evidence	Chester, United KingdomHQ checked Sep 14, 2026	11-50	37 contacts →
	Indirect evidence “Deepbridge only invests in sectors in which our team has experience.” Source: RevenueBase Database · checked Sep 14, 2026
21	Ascension	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	35 contacts →
	Strong evidence “Ascension is an early-stage venture capital firm built and managed by exited operators and entrepreneurs to back the next generation of tech and impact founders.” Source: RevenueBase Database · checked Sep 14, 2026
22	Asper Investment Management	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	32 contacts →
	Strong evidence “Asper Investment Management is a leading specialist investment management firm focused on building large-scale sustainable energy platforms.” Source: RevenueBase Database · checked Sep 14, 2026
23	Bethnal Green Ventures	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	n/a	32 contacts →
	Partial evidence “Bethnal Green Ventures is Europe’s leading early-stage tech for good VC.” Source: RevenueBase Database · checked Sep 14, 2026
24	AP Ventures	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	31 contacts →
	Strong evidence “AP Ventures is an independent venture capital firm headquartered in London, with offices in San Francisco and South Africa.” Source: RevenueBase Database · checked Sep 14, 2026
25	ETF Partners	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	29 contacts →
	Strong evidence “Founded in 2005, ETF Partners (The Environmental Technologies Fund) stands as Europe's original venture capital firm dedicated to sustainability and impact investing.” Source: RevenueBase Database · checked Sep 14, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: venture capital firms focused on climate. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names venture capital firms focused on climate.
Partial evidence: Its own public description names part of venture capital firms focused on climate, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name venture capital firms focused on climate. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 411 venture capital firms focused on climate based in the United Kingdom

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Venture capital firms focused on climate based in the United Kingdom at a glance

As of Sep 14, 2026

42.1%Verified-email coverage

8.5%Mobile-number coverage

9.5Average contacts per company

1-10Median size (employees)

74.9%Largest-city concentration · London

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

284

11-50

107

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 17.0d

1,3050–30

33031–60

661–90

190–180

6180+

Company record updated

Median 55.0d

00–30

2,27231–60

1,04961–90

32190–180

270180+

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 venture capital firms focused on climate, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “venture capital firms focused on climate”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names venture capital firms focused on climate), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among venture capital firms focused on climate, 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 its RevenueBase Smart Search 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, 1,648 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 14, 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.

Venture capital firms focused on climate by metro

Venture capital firms focused on climate in London308

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names venture capital firms focused on climate, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many venture capital firms focused on climate are there based in the United Kingdom?

RevenueBase identified 411 venture capital firms focused on climate 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?

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

Which city has the most venture capital firms focused on climate?

London leads with 308 headquartered companies, followed by Bristol (4) and Edinburgh (4).

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 1,648 verified decision-maker contacts tracked across these 411 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 14, 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 Smart Search, 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.