Company lists · Data refreshed September 2026

Top 25 Sustainable venture capital firms based in London, United Kingdom

Name: Sustainable venture capital firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 285 companies tracked

RevenueBase identified 285 sustainable venture capital firms headquartered in London, United Kingdom as of September 2026 and tracks 2,639 professional contacts across them, including 1,143 with verified work emails and 252 with mobile numbers. London is the largest hub.

This list covers sustainable venture capital firms headquartered in London, 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 13, 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 13, 2026 86% judged on-target in blind review

285Companies

2,639Contacts tracked

1,143Verified emails

252Mobile numbers

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The 25 largest sustainable venture capital firms based in London, United Kingdom

Ranked by team size

Top 25 of 285 sustainable venture capital firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable venture capital firms: 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	Lightrock	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
2	UNLTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	119 contacts →
	Indirect evidence “UnLtd's mission is to reach out and unleash the energies of people who can transform the world in which they live.” Source: RevenueBase Database · checked Sep 13, 2026
3	Index Ventures	Partial evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
4	Octopus Ventures	Strong evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
5	Bridges Fund Management	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	73 contacts →
	Indirect evidence “Bridges is a specialist private markets investor.” Source: RevenueBase Database · checked Sep 13, 2026
6	Future Planet Capital	Strong evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
7	Emerge VC	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	n/a	46 contacts →
	Partial evidence “Emerge - First money in for founders building the future of human capital development.” Source: RevenueBase Database · checked Sep 13, 2026
8	Hummingbird Ventures	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	45 contacts →
	Partial evidence “Hummingbird Ventures is an agile investor in entrepreneurial genius.” Source: RevenueBase Database · checked Sep 13, 2026
9	Greenbank	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	45 contacts →
	Partial evidence “Tailored investment services, delivered sustainably.” Source: RevenueBase Database · checked Sep 13, 2026
10	Northzone	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	43 contacts →
	Indirect evidence “Northzone is a technology investment partnership.” Source: RevenueBase Database · checked Sep 13, 2026
11	Zouk Capital LLP	Strong evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
12	Albion Capital Group LLP	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	38 contacts →
	Strong evidence “Albion Capital is a specialist venture capital investor that has backed visionary founders and technologies since 1996.” Source: RevenueBase Database · checked Sep 13, 2026
13	Ascension	Strong evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
14	Tribe Impact Capital	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	34 contacts →
	Indirect evidence “Tribe is the UK’s first dedicated Impact Wealth Manager and offers discretionary and advisory portfolio management.” Source: RevenueBase Database · checked Sep 13, 2026
15	Bethnal Green Ventures	Partial evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
16	ETF Partners	Strong evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
17	RAW Ventures	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	29 contacts →
	Indirect evidence “With European roots and decades of experience, we invest globally in exceptional startups and talented teams.” Source: RevenueBase Database · checked Sep 13, 2026
18	PI Labs	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	28 contacts →
	Indirect evidence “The VC backing the innovators who are transforming our relationship with the built world and its impact on people, business, and the environment.” Source: RevenueBase Database · checked Sep 13, 2026
19	Pembroke VCT	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	27 contacts →
	Indirect evidence “Founded in 2013 and managed by Pembroke Investment Managers LLP, Pembroke VCT plc backs growth-stage companies across the consumer, business services, and technology sectors.” Source: RevenueBase Database · checked Sep 13, 2026
20	Arch Emerging Markets Partners Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	26 contacts →
	Indirect evidence “ARCH Emerging Markets Partners Limited (ARCH) was founded in March 2018 and is a specialist investment advisor with deep emerging market, private equity, asset management and…” Source: RevenueBase Database · checked Sep 13, 2026
21	Pontaq	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	24 contacts →
	Indirect evidence “At Pontaq, we are dedicated to fostering cross-border investments and innovation, driving growth in startup ecosystems worldwide.” Source: RevenueBase Database · checked Sep 13, 2026
22	3x Capital	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	24 contacts →
	Partial evidence “We invest in exceptional founders and support them with capital, strategic guidance, and access to a global network.” Source: RevenueBase Database · checked Sep 13, 2026
23	COCOA	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	24 contacts →
	Indirect evidence “We are VCs turned angels supporting founders as their in-house VC.” Source: RevenueBase Database · checked Sep 13, 2026
24	Advance Global Capital	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	22 contacts →
	Partial evidence “Advance Global Capital is a global impact investment management company.” Source: RevenueBase Database · checked Sep 13, 2026
25	Arāya Ventures	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	21 contacts →
	Indirect evidence “Empowering Founders to Flourish The way we experience healthcare, live consciously, work productively, shop experientially and grow our wealth is transforming at rapid pace.” Source: RevenueBase Database · checked Sep 13, 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: sustainable venture capital firms. 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 sustainable venture capital firms.
Partial evidence: Its own public description names part of sustainable venture capital firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable venture capital firms. 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 285 sustainable venture capital firms based in London, United Kingdom

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Sustainable venture capital firms based in London, United Kingdom at a glance

As of Sep 13, 2026

43.3%Verified-email coverage

9.5%Mobile-number coverage

9.3Average contacts per company

1-10Median size (employees)

127.4%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

188

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 16.0d

8930–30

23831–60

561–90

190–180

6180+

Company record updated

Median 54.0d

00–30

1,58331–60

62961–90

23590–180

192180+

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 sustainable venture capital firms, 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 London, United Kingdom whose own description of what they do matches “sustainable venture capital firms”. 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 sustainable venture capital firms), 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 sustainable venture capital firms, and records with no verified work email. Companies headquartered outside London 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, 1,143 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 13, 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.

Sustainable venture capital firms by metro in the United Kingdom

Sustainable venture capital firms in London363

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 sustainable venture capital firms, 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 sustainable venture capital firms are there based in London, United Kingdom?

RevenueBase identified 285 sustainable venture capital firms headquartered in London, 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?

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

Which city has the most sustainable venture capital firms?

London leads with 363 headquartered companies, followed by Edinburgh (8) and Birmingham (5).

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 1,143 verified decision-maker contacts tracked across these 285 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 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 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.