Company lists · Data refreshed September 2026

Top 25 Early stage startups based in the United Kingdom

Name: Early stage startups based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 77 companies tracked

RevenueBase identified 77 early stage startups headquartered in the United Kingdom as of September 2026 and tracks 428 professional contacts across them, including 118 with verified work emails. London is the largest hub.

This list covers early stage startups 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 19, 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 19, 2026 86% judged on-target in blind review

77Companies

428Contacts tracked

118Verified emails

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The 25 largest early stage startups based in the United Kingdom

Ranked by team size

Top 25 of 77 early stage startups based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to early stage startups: 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	DN Capital	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	99 contacts →
	Strong 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 19, 2026
2	FIG	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	42 contacts →
	Strong evidence “Fig provides a pragmatic new approach to supporting and investing in high-growth early-stage companies.” Source: RevenueBase Database · checked Sep 19, 2026
3	Verticode	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Verticode partners with founders and innovators to launch their tech Minimum Viable Products faster and more affordably than ever before.” Source: RevenueBase Database · checked Sep 19, 2026
4	Hoxton Ventures	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	13 contacts →
	Indirect evidence “We take risks on brilliant people and products.” Source: RevenueBase Database · checked Sep 19, 2026
5	ESYA	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Strong evidence “Esya.VC invests in great companies, funding at pre-seed, seed and beyond as well as co-founding to scale early stage start ups or build new ventures.” Source: RevenueBase Database · checked Sep 19, 2026
6	Series-A	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Series-A builds the commercial infrastructure for the next generation of independent executives.” Source: RevenueBase Database · checked Sep 19, 2026
7	Kindred Capital VC	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	10 contacts →
	Indirect evidence “At Kindred we align our ambitions and achievements with our portfolio - in structure and in spirit.” Source: RevenueBase Database · checked Sep 19, 2026
8	Concrete Ventures	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Strong evidence “Concrete is an early stage tech investment firm based in London, helping driven founders with solid technology and Real Estate credentials to change the world of the built…” Source: RevenueBase Database · checked Sep 19, 2026
9	The Startup Factory	Strong evidence	Manchester, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Strong evidence “We work with entrepreneurs, early stage startups and investors to help articulate, define and realise their vision.” Source: RevenueBase Database · checked Sep 19, 2026
10	oqva.digital	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “There are people with the grit to start something, but not the infrastructure to scale it.” Source: RevenueBase Database · checked Sep 19, 2026
11	Pentech Ventures	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Strong evidence “Pentech Ventures is a leading early-stage software investor looking for opportunities to help build breakout companies in emerging market spaces, with particular focus on AI and…” Source: RevenueBase Database · checked Sep 19, 2026
12	stride.vc	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Seed Capital.” Source: RevenueBase Database · checked Sep 19, 2026
13	Osun Capital	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Strong evidence “Osun Capital Limited is an advisor to early stage technology companies from Pre-Seed to Series B.” Source: RevenueBase Database · checked Sep 19, 2026
14	NJF Capital	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “NJF Capital supports innovative, industry-defining entrepreneurs pioneering the latest technological advances to make breakthroughs in fields as diverse as healthcare, FinTech…” Source: RevenueBase Database · checked Sep 19, 2026
15	Jubile Tech Incubator	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Strong evidence “We invest in early-stage startups at the idea or MVP stage and fast-track them to seed funding in 20 weeks.” Source: RevenueBase Database · checked Sep 19, 2026
16	Solid Bond	Strong evidence	Manchester, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Strong evidence “Solid Bond is a pre-seed/ early seed stage investor supporting founders through this early stage of the journey.” Source: RevenueBase Database · checked Sep 19, 2026
17	Failsafe Engineering	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Failsafe helps founders create sustainable software businesses.” Source: RevenueBase Database · checked Sep 19, 2026
18	Truesight Ventures	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Strong evidence “TrueSight Ventures is a venture capital firm with offices in London and Stockholm, focused on seed and early stage investments in Europe.> We believe in partnering with great…” Source: RevenueBase Database · checked Sep 19, 2026
19	Ultimateweb LTD	Indirect evidence	Leicester, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Your ideas well coded since 2002.” Source: RevenueBase Database · checked Sep 19, 2026
20	Grow To Market	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Strong evidence “Grow To Market helps transform early-stage ventures from scrappy founder motions to disciplined models that drive scalable growth.” Source: RevenueBase Database · checked Sep 19, 2026
21	Activate Ventures	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Strong evidence “We help early stage founders build their business foundations and learn how to engage with investors so that they can pitch with confidence and raise money.” Source: RevenueBase Database · checked Sep 19, 2026
22	Digitalpark	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Strong evidence “We support early-stage startups at every iteration, solving problems and collaborating with teams to build successful products.” Source: RevenueBase Database · checked Sep 19, 2026
23	The Idea Factory Global	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	1 contacts →
	Strong evidence “Idea Factory is a startup community that supports founders at their early stage through education, mentorship and financing.” Source: RevenueBase Database · checked Sep 19, 2026
24	Astute Insights	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Passionate about helping technology businesses of all sizes to optimise their growth and dedicated to supporting the next generation of entrepreneurs.” Source: RevenueBase Database · checked Sep 19, 2026
25	Duet Partners LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	1 contacts →
	Partial evidence “Duet Partners is one of the UK's leading startup to scaleup advisors.” Source: RevenueBase Database · checked Sep 19, 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: early stage startups. 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 early stage startups.
Partial evidence: Its own public description names part of early stage startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name early stage startups. 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 77 early stage startups based in the United Kingdom

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Early stage startups based in the United Kingdom at a glance

As of Sep 19, 2026

27.6%Verified-email coverage

5.6Average contacts per company

1-10Median size (employees)

77.9%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 77 companies.

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 early stage startups, 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 “early stage startups”. 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 early stage startups), 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 early stage startups, 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, 118 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 19, 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.

Early stage startups by metro

Early stage startups in London60

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 early stage startups, 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 early stage startups are there based in the United Kingdom?

RevenueBase identified 77 early stage startups 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?

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

Which city has the most early stage startups?

London leads with 60 headquartered companies, followed by Manchester (4) and Cambridge (2).

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 118 verified decision-maker contacts tracked across these 77 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 19, 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.