Company lists · Data refreshed September 2026

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

Name: Impact 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 12, 2026 596 companies tracked

RevenueBase identified 596 impact venture capital firms headquartered in London, United Kingdom as of September 2026 and tracks 6,788 professional contacts across them, including 2,398 with verified work emails and 652 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers impact 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 12, 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 12, 2026 86% judged on-target in blind review

596Companies

6,788Contacts tracked

2,398Verified emails

652Mobile numbers

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

Ranked by team size

Top 25 of 596 impact venture capital firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to impact 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	Entrepreneurs First	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	n/a	906 contacts →
	Indirect evidence “Entrepreneurs First invests in exceptional individuals to build startups from scratch.” Source: RevenueBase Database · checked Sep 12, 2026
2	Octopus	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	501-1,000	288 contacts →
	Indirect 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 12, 2026
3	Blenheim Chalcot	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	1,001-5,000	265 contacts →
	Partial evidence “Blenheim Chalcot is a global venture builder headquartered in the vibrant Scale Space campus in White City, London.” Source: RevenueBase Database · checked Sep 12, 2026
4	Lightrock	Indirect evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
5	UNLTD	Indirect evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
6	Atomico	Strong evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	115 contacts →
	Strong evidence “Atomico is the founder-built European venture capital firm.” Source: RevenueBase Database · checked Sep 12, 2026
7	Index Ventures	Partial evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
8	Newton Venture Program	Strong evidence	London, United KingdomHQ checked Sep 12, 2026	n/a	111 contacts →
	Strong evidence “Newton Venture Program provides venture capital training and development for aspiring investors, practising investors, and others in the venture space.” Source: RevenueBase Database · checked Sep 12, 2026
9	DN Capital	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	99 contacts →
	Partial evidence “DN Capital is a global early stage and growth capital investor focused on Seed, Series A and select series B investments in fintech, SaaS, digital media, e-commerce, marketplaces…” Source: RevenueBase Database · checked Sep 12, 2026
10	Octopus Ventures	Strong evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
11	Founders Factory	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	87 contacts →
	Indirect evidence “Founders Factory builds and funds startups together with exceptional entrepreneurs and the world’s leading companies.” Source: RevenueBase Database · checked Sep 12, 2026
12	Social Investment Business	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	84 contacts →
	Indirect evidence “We finance social change.” Source: RevenueBase Database · checked Sep 12, 2026
13	Bridges Fund Management	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	73 contacts →
	Indirect evidence “Bridges is a specialist private markets investor.” Source: RevenueBase Database · checked Sep 12, 2026
14	Kinetic Investments	Strong evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	73 contacts →
	Strong evidence “Kinetic Investments is a venture capital firm dedicated to early-stage companies that are transforming the digital landscape.” Source: RevenueBase Database · checked Sep 12, 2026
15	White Star Capital	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	70 contacts →
	Partial evidence “White Star Capital is an international multi-stage technology investment manager built by a team of founders, investors and operators with a track record of entering new markets…” Source: RevenueBase Database · checked Sep 12, 2026
16	ADA Ventures	Strong evidence	London, United KingdomHQ checked Sep 12, 2026	n/a	63 contacts →
	Strong evidence “Ada Ventures is a pre-seed inclusive venture capital firm.” Source: RevenueBase Database · checked Sep 12, 2026
17	Future Planet Capital	Strong evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
18	Target Global	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	53 contacts →
	Indirect evidence “Since 2015, Target Global has partnered with bold founders building category-defining companies including Revolut, Delivery Hero, Auto1, Flo Health, Fresha, TravelPerk, Copper and…” Source: RevenueBase Database · checked Sep 12, 2026
19	Creandum	Strong evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	50 contacts →
	Strong evidence “Creandum is a leading early-stage venture capital firm backing the world's most ambitious founders building generational companies, including Spotify, Lovable, Klarna, Trade…” Source: RevenueBase Database · checked Sep 12, 2026
20	Emerge VC	Partial evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
21	Hummingbird Ventures	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	45 contacts →
	Partial evidence “Hummingbird Ventures is an agile investor in entrepreneurial genius.” Source: RevenueBase Database · checked Sep 12, 2026
22	Angels DEN Funding	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	45 contacts →
	Partial evidence “Angels Den Funding is one of the UK and Europe’s leading angel-led investment platforms, connecting ambitious companies with the capital, expertise and networks they need to grow.” Source: RevenueBase Database · checked Sep 12, 2026
23	Northzone	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	43 contacts →
	Indirect evidence “Northzone is a technology investment partnership.” Source: RevenueBase Database · checked Sep 12, 2026
24	Seedcamp	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	43 contacts →
	Indirect evidence “Seedcamp is Europe's seed fund, identifying and investing early in world-class founders attacking global markets and solving real problems using technology.” Source: RevenueBase Database · checked Sep 12, 2026
25	Green Angel Ventures	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	43 contacts →
	Indirect evidence “The reference early stage investor for UK climate innovation.” Source: RevenueBase Database · checked Sep 12, 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: impact 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 impact venture capital firms.
Partial evidence: Its own public description names part of impact 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 impact 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 596 impact venture capital firms based in London, United Kingdom

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

As of Sep 12, 2026

35.3%Verified-email coverage

9.6%Mobile-number coverage

11.4Average contacts per company

1-10Median size (employees)

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

416

11-50

146

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 15.0d

2,0030–30

36631–60

1361–90

190–180

15180+

Company record updated

Median 53.0d

00–30

3,89131–60

1,82361–90

63390–180

441180+

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 impact 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 “impact 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 impact 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 impact 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, 2,398 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 12, 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.

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

RevenueBase identified 596 impact 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?

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

Which city in the United Kingdom has the most impact venture capital firms?

London leads the United Kingdom with 572 headquartered companies, followed by Manchester (11) and Birmingham (10).

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 2,398 verified decision-maker contacts tracked across these 596 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 12, 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.