Company lists · Data refreshed September 2026

Top 17 Venture capital quantum tech investors based in the United Kingdom

RevenueBase identified 43 company matches for venture capital quantum tech investors associated with the United Kingdom as of September 2026 and tracks 660 professional contacts across them, including 311 with verified work emails. London is the largest hub.

This list covers company matches for venture capital quantum tech investors associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built
43Companies
660Contacts tracked
311Verified emails
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The 17 largest venture capital quantum tech investors based in the United Kingdom

Ranked by team size
Top 17 of 43 company matches for venture capital quantum tech investors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchShinfield, United KingdomHQ recorded Sep 29, 202651-200146 contacts →

Exact match

“Quantum computing is poised to reshape our world by addressing the complex challenges we face today.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchBrighton, United KingdomHQ recorded Sep 29, 202651-20087 contacts →

Exact match

“A quantum computer harnesses the fundamental forces that govern the physical world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20068 contacts →

Exact match

“Molten Ventures is a leading venture capital firm in Europe, investing in and developing high growth technology companies.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5039 contacts →

Exact match

“Since 1997, Amadeus Capital Partners has backed more than 200 pioneering companies and raised over $1.3 billion to fuel their growth.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20029 contacts →

Exact match

“Cambridge Quantum (CQ), part of Quantinuum, is a quantum computing software and algorithms company, and in essence we solve one critical problem – to allow our customers to get…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5022 contacts →

Exact match

“EdenBase are venture investors and ecosystem builders, focused on frontier technologies (AI and quantum).”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5016 contacts →

Exact match

“Brookstreet Equity Partners LLP (“Brookstreet”) is a global, award-winning PEVC investor.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchEdinburgh, United KingdomHQ recorded Sep 29, 202651-20013 contacts →

Exact match

“The Quantum Software Lab, in collaboration with the National Quantum Computing Centre (NQCC) and based in the School of Informatics, will identify key challenges in the adoption…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchBristol, United KingdomHQ recorded Sep 29, 20261-1012 contacts →

Exact match

“We invest in advanced technologies from biotech to quantum tech, partnering with companies aligned with our mission of improving the health of people and the planet.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5010 contacts →

Exact match

“Quantum Exponential’s team of finance professionals, entrepreneurs and Quantum scientists is building a world leading portfolio of high-potential quantum technology companies.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5010 contacts →

Exact match

“We’re leading a quantum computing expedition to blaze the trail from prototypes to next-gen computing.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-107 contacts →

Exact match

“HELPING SHAPE THE FUTURE OF QUANTUM” Our mission is simple; to help quantum computing companies across the globe grow and scale through the acquisition of the right talent at the…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-506 contacts →

Exact match

“Founded by David Hayes & Claire Valoti in 2023, Haylo Ventures partners with exceptional founders and teams to turn breakthrough science into global businesses.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-505 contacts →

Exact match

“Bloc is a specialist deep tech investor.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-503 contacts →

Exact match

“2xN is a quantum-inspired early-stage VC fund.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-102 contacts →

Exact match

“Quantumy is a forward-thinking nonprofit organization, devoted to demystifying and promoting the revolutionary field of Quantum Computing.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-101 contacts →

Exact match

“Early-stage VC focused on Deep Energy Tech on Earth and in space.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 17 of 43 venture capital quantum tech investors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 311 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Venture capital quantum tech investors based in the United Kingdom at a glance

As of Sep 29, 2026
47.1%Verified-email coverage
15.3Average contacts per company
1-10Median size (employees)
67.4%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
13
51-200
7

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 43 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United Kingdom whose business descriptions match “venture capital quantum tech investors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 311 professional contacts with verified work emails across the full matched dataset. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Venture capital quantum tech investors by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “venture capital quantum tech investors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many venture capital quantum tech investors are there based in the United Kingdom?

RevenueBase identified 43 company matches for venture capital quantum tech investors associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Oxford Quantum Circuits OQC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most venture capital quantum tech investors?

London leads with 29 company records, followed by Bristol (3) and Edinburgh (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 311 professional contacts with verified work emails tracked across these 43 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 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.