16 Quantum startups in the UK (free list)
Track funded quantum companies, founders and investors across the UK startup ecosystem.
Updated daily by John-Pierre ClarkUpdated daily by John-Pierre Clark| Date | Startup | Funding | Round | Sector | Location | Connect | Website | Investor1 | Investor2 | Investor3 | Investor4 | Investor5 | Founder(s) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Jun 2026 |  OQC OQC builds superconducting quantum computers designed for data-centre envir... | £260,000,000 | |||||||||||
7 May 2026 |  Quantum Motion Quantum Motion supplies silicon quantum processors built with CMOS-compatib... | £120,000,000 | |||||||||||
10 Apr 2026 |  Qoro Qoro is a platform that connects quantum and classical systems using a sing... | £560,000 | |||||||||||
7 Apr 2026 |  Quantcore Quantcore manufactures niobium superconducting components for specialised c... | £2,500,000 | |||||||||||
14 Jan 2026 |  Haiqu Haiqu offers an operating system for quantum applications that runs on curr... | £8,000,000 | |||||||||||
10 Dec 2025 |  Nu Quantum Nu Quantum's Entanglement Fabric is a networking layer that links quantum p... | £45,080,000 US$60,000,000 | |||||||||||
9 Dec 2025 |  Quantum Dice Quantum Dice offers a probabilistic processor called ORBIT that uses p-bits... | £1,750,000 €2,000,000 | |||||||||||
7 Nov 2025 |  Aquark Technologies AQlock 2 is a compact cold-atom atomic clock built by Aquark Technologies. ... | £1,400,000 | Southampton  | ||||||||||
24 Oct 2025 |  QFX QFX provides modular quantum hardware for trapped ion systems. It supplies ... | £2,000,000 | |||||||||||
26 Sept 2025 |  Delta.g Delta.g offers a gravity sensing platform that utilises quantum sensors for... | £4,600,000 | |||||||||||
4 Sept 2025 |  Quantinuum Helios is a cloud accessible quantum computer provided by Quantinuum as har... | £444,580,000 US$600,000,000 | |||||||||||
2 Sept 2025 |  Phasecraft Phasecraft is a UK quantum-software company developing algorithms to turn t... | £25,110,000 US$34,000,000 | |||||||||||
12 Mar 2025 |  Atlant 3D Atlant 3D's £11,590,000 funding boost sets the stage for breakthroughs in m... | £11,590,000 US$15,000,000 | Copenhagen | ||||||||||
6 Aug 2024 |  Riverlane Riverlane scores a game-changing $75 million Series C funding to revolution... | £58,800,000 | |||||||||||
12 Sept 2023 |  Kuano Kuano, the groundbreaking drug discovery company fusing quantum mechanics a... | £1,800,000 | |||||||||||
6 Feb 2023 |  Oxford Quantum Circuits With a game-changing £869K funding round, Oxford Quantum Circuits is set to... | £869,000 |
1 Explore 16 UK quantum startups and their founders, who have collectively raised £1.17B.
2 Easily sort, filter, and compare the UK's top startups — customise the list to your needs.
3 Discover top startups for investment, B2B sales, partnerships, hiring, and industry connections.
You can connect with fast-growing quantum startups with the full list of recently funded startups from the UK.
Quantum computing and quantum technology represent one of the most exciting frontiers in UK innovation. With strong research foundations at Oxford, Cambridge, and London universities, the UK is positioning itself as a global leader in quantum startups, attracting significant investment from both public and private sources.
UK quantum startup insights
The UK has developed a world-leading quantum technology ecosystem, supported by the National Quantum Technologies Programme and strong research institutions in Oxford, Cambridge, London, Bristol and Edinburgh. This list highlights funded quantum startups across hardware, software, and applications.
Quantum in this context covers quantum computing hardware, quantum software and algorithms, quantum sensing, quantum cryptography, quantum communications and quantum-enabled applications. Many of these companies combine cutting-edge physics research with engineering and software to develop practical quantum solutions.
Snapshot of the UK quantum landscape
- Growing number of funded quantum startups ranging from early research spinouts to commercial platforms
- Round sizes typically span seed cheques through to large Series A and growth rounds, with significant government support
- Key hubs include Oxford, Cambridge, London, Bristol and Edinburgh, with strong university connections
- Investors include specialist quantum funds, deeptech VCs, government programmes and corporate R&D groups
- Common themes include quantum computing, quantum sensors, quantum cryptography, quantum algorithms and quantum networking
Use this page to explore the fastest growing quantum startups in the UK, then review individual profiles for websites, investors, locations and recent funding. For filters, exports and deeper analysis, you can upgrade to full database access.
That's for the fastest growing quantum startups. If you're looking for funding opportunities, check out our list of top quantum investors backing innovative startups.
What is Quantum Technology?
Quantum technology refers to technologies that exploit the principles of quantum mechanics—the physics of atoms and subatomic particles—to create new capabilities that are impossible with classical physics. Unlike traditional computing and sensing, quantum technologies leverage phenomena like superposition, entanglement, and quantum interference.
Quantum technology combines physics, engineering, computer science, and mathematics to develop practical applications. The field has wide-ranging potential across computing, communications, sensing, and cryptography.
5 most exciting Quantum sectors
Key areas of quantum technology include:
1 - Quantum Computing
Involves developing quantum computers that can solve certain problems exponentially faster than classical computers. Applications include drug discovery, financial modelling, optimisation problems, and machine learning acceleration.
2 - Quantum Sensing
Focuses on using quantum effects to create ultra-precise sensors for measuring magnetic fields, gravity, time, and other physical quantities. Applications include medical imaging, navigation, and geological surveying.
3 - Quantum Cryptography
Utilises quantum mechanics to create unbreakable encryption methods. Quantum key distribution (QKD) enables secure communication that is theoretically immune to hacking, even by quantum computers.
4 - Quantum Communications
Addresses secure communication networks using quantum entanglement and quantum key distribution. This includes quantum internet infrastructure and secure quantum networks.
5 - Quantum Software and Algorithms
Involves developing software, algorithms, and applications that can run on quantum computers or hybrid quantum-classical systems. This includes quantum machine learning, quantum optimisation, and quantum simulation tools.
Quantum technology has the potential to revolutionise computing, security, and sensing, offering solutions to problems that are currently intractable. The UK has a fantastic opportunity to maintain its position as a world leader in quantum startups and innovation.
Related quantum and deeptech resources
Frequently asked questions
Quantum startups build products based on quantum computing, quantum sensing, quantum communications, quantum security or supporting infrastructure. UK quantum startups often emerge from university research and operate in highly technical markets with long commercialisation timelines.
The UK is strong in quantum startups because of its universities, national research programmes, technical talent and specialist deeptech investor base. Oxford, Cambridge, London, Bristol and other research-led hubs are important parts of the UK quantum ecosystem.
Quantum startups raise funding from angel investors, deeptech venture capital firms, university spinout funds, grants and strategic partners. Because quantum technologies can take time to commercialise, startups often rely on patient capital and strong technical milestones.
Investors in quantum startups look for exceptional technical teams, defensible intellectual property, credible research progress and a clear route to commercial use cases. They also assess whether the company can move from scientific promise to products customers will eventually buy.
Growing quantum startup sectors in the UK include quantum computing software, quantum hardware, quantum sensing, secure communications and enabling infrastructure. Many companies are still early, but the long-term market potential is significant.