Best Quantum Computing Companies in England, United Kingdom
The 43 best Quantum Computing companies in England, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Quantum Motion.
Ranked: Best Quantum Computing companies in England
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Quantum Motion Developer of AI-based quantum computing hardware products 76Innovation top 17%Funding top 18%Patents top 18%AI top 28% All 9 signals ▾Innovationtop 17% Fundingtop 18% Patentstop 18% AItop 28% Talenttop 28% Moattop 34% Globaltop 46% Techbottom 48% Marketbottom 35% Innovation: 96 patents (top 20% of patent-holders) · 86 filings since 2022 vs 10 in 2017-21 Funding: Raised $222M across 5 rounds · 5 rounds over 9 yrs (0.6/yr) rank vs industry peers · Fliar Intelligence Index 76/100 | $222M | 3 mo ago | — | Simon Benjamin Co-Founder & CSO | WordPressMySQLPHP+18 | Top 10M | 96 patents Cryogenic quantum computing hardware and software, including processors, cooling, and control methods. | — |
| 2 | Oqc Tech Developer of quantum computing hardware for commercial and research applications | $150M | 33 mo ago | — | Gerald Mullally Chief Executive Officer | WordPressMySQLPHP+25 | Top 10M | — | — |
| 3 | Quantum Circuits Limited Developer of quantum computing hardware and cloud based access services | $150M | 33 mo ago | 11 | Peter Leek Founder | — | — | 13 patents Quantum computing hardware and hybrid quantum‑classical processing architectures | — |
| 4 | Riverlane Provider of software for quantum computers | $122M | 24 mo ago | 70 | Steve Brierley Founder & CEO | Apple iCloud MailMicrosoft 365Microsoft ASP.NET+17 | Top 5M | 87 patents Quantum error correction and control infrastructure for scalable quantum computers. | 1 partnership |
| 5 | Cambridge Quantum Provider of AI-based software for quantum computing | $95M | 68 mo ago | 16 | — | — | — | 40 patents Quantum algorithms, cryptography, and chemistry simulation with hardware control and error mitigation | — |
| 6 | Quantum Motion Developer of a universal quantum computer on a silicon chip | $75M | 42 mo ago | 2 | John Morton Co-Founder | WordPressApple iCloud MailGoogle Workspace+17 | Top 10M | 96 patents Cryogenic quantum computing hardware, including silicon qubits, control electronics, and sensors | — |
| 7 | PQShield Provider of quantum computing solutions for secured communication 62Innovation top 13%Patents top 21%Moat top 29%Growth top 30% All 9 signals ▾Innovationtop 13% Patentstop 21% Moattop 29% Growthtop 30% Fundingtop 31% Talentbottom 49% Techbottom 46% Globalbottom 45% Marketbottom 32% Innovation: 119 patents (top 12% of patent-holders) · 106 filings since 2022 vs 13 in 2017-21 Patents: 119 patents matched (strict assignee match) · 106 filings since 2022 vs 13 in 2017-21 rank vs industry peers · Fliar Intelligence Index 62/100 | $65M | 28 mo ago | 8 | Ali Kaafarani Founder & CEO | WordPressMySQLPHP+27 | Top 5M | 119 patents Threshold and lattice-based cryptographic signatures with fault‑attack detection and key verification | — |
| 8 | Oxford Ionics Provider of quantum computers | $48M | 35 mo ago | 13 | — | WordPressApple iCloud MailGoogle Workspace+22 | Top 10M | 63 patents Trapped-ion quantum hardware: ion traps, control, and quantum logic operations. | — |
| 9 | PhaseCraft Provider of quantum simulation systems | $22M | 11 mo ago | 13 | John Morton Co-Founder | Prismicstyled-componentsReact+10 | Top 50M | 47 patents Quantum algorithms for condensed‑matter simulation and fermion‑to‑qubit mapping optimization. | 1 partnership · 1 award |
| 10 | ORCA Developer of photonic quantum computing systems for machine learning applications | $19M | 50 mo ago | 28 28 → 39 (+39%) | Ian Walmsley Co-Founder & Chairman | WordPressApple iCloud MailMicrosoft 365+26 | Top 10M | — | 1 partnership |
| 11 | PQ Solutions Post quantum encryption based data and communication security | $17M | 36 mo ago | 12 12 → 7 (-42%) | Martin Tomlinson Co-Founder | WordPressApple iCloud MailGoogle Workspace+20 | Top 50M | — | — |
| 12 | Oxford Quantum Research centre launched by the Oxford University | $16M | 86 mo ago | — | Peter Leek Founder & Director | — | — | 13 patents Design and fabrication of quantum chips, qubit control, and hybrid quantum‑classical computing systems. | — |
| 13 | Nu Quantum Developer of quantum cryptography systems 60AI top 15%Patents top 19%Innovation top 30%Moat top 32% All 11 signals ▾AItop 15% Patentstop 19% Innovationtop 30% Moattop 32% Growthtop 35% Fundingtop 36% Talenttop 41% Newstop 43% Techbottom 49% Globalbottom 46% Marketbottom 23% AI: Holds AI/ML patents (G06N-family CPC) Patents: 33 patents matched (strict assignee match) · 31 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 60/100 | $12M | 8 mo ago | 15 | Carmen Palacios-Berraquero Co-Founder & CEO | WebflowGoogle Mapslit-html+9 | Top 10M | 33 patents Scalable photonic quantum networking: distributed computing, cavity locking, entanglement generation. | 3 job openings · 1 partnership |
| 14 | Crypto Quantique Developer of quantum-resistant solutions for cybersecurity | $8M | 75 mo ago | 29 29 → 37 (+28%) | — | — | — | 53 patents Patents concentrated in electrical & electronics | — |
| 15 | Sitehop Provider of network security solutions for enterprises 14Talent top 38%Funding top 39%Global bottom 37%Tech bottom 33% All 5 signals ▾Talenttop 38% Fundingtop 39% Globalbottom 37% Techbottom 33% Marketbottom 17% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $6.3M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 14/100 | $6M | 10 mo ago | 7 | Ben Harper Co-Founder & CTO | WordPressMySQLPHP+15 | Top 50M | — | — |
| 16 | Aquark Technologies Manufacturer of cold-atom quantum devices | $6M | 9 mo ago | 4 | Alexander Jantzen Co-Founder | Wix eCommerceWixSentry+13 | Top 10M | — | — |
| 17 | Universal Quantum Developer of quantum computers | $5M | 45 mo ago | 19 | Sebastian Weidt Co-Founder & CEO | DrupalPHPjQuery+4 | Top 10M | 63 patents Trapped-ion quantum computing hardware integration and inter-module transport solutions | — |
| 18 | Aegiq Provider of quantum photonics hardware for communications | $5M | 38 mo ago | 5 | Scott Dufferwiel Co-Founder & CTO | NginxMicrosoft 365IONOS+3 | Top 50M | 11 patents Quantum photonic hardware: single‑photon sources, chip‑fiber interfaces, and free‑space QKD systems. | 1 launch |
| 19 | KETS Quantum Security Provider of quantum computing solutions for secure digital communication | $4M | 62 mo ago | 16 16 → 19 (+19%) | Philip Sibson Co-Founder | — | — | 7 patents Quantum random number generation and interferometric quantum key distribution hardware | 1 launch |
| 20 | Mode Labs Provider of real-time chemical sensors for environmental and industrial applications | $4M | 16 mo ago | — | Dean James Founder & CEO | — | — | 8 patents Modular, lockable storage rack systems for commercial shelving | — |
| 21 | Kuano Technologies Provider of AI and quantum services for molecular design | $4M | 35 mo ago | 4 | David Wright Co-Founder & CTO | Cart FunctionalitySquarespace CommerceSquarespace+10 | Top 50M | 10 patents AI-driven small-molecule drug discovery and quantum/ tensor‑network chemical simulations | — |
| 22 | Cavero Quantum Provider of cybersecurity platform specializing in quantum-safe encryption solutions | $3M | 26 mo ago | — | Ben Varcoe Co-Founder & Director | — | — | — | — |
| 23 | Quantum Dice Manufacturer of quantum random number generators | $3M | 8 mo ago | 8 | Ramy Shelbaya Co-Founder & CEO | WordPressMySQLPHP+21 | Top 50M | — | — |
| 24 | Quantum Fabrix Manufacturer of modular quantum hardware components for quantum systems integrators | $3M | 18 mo ago | — | Laurent Stephenson Co-Founder & CSO | — | — | — | — |
| 25 | Delta g Provider of gravity gradient cartography, quantum technical consulting, and other services | $2M | 11 mo ago | 4 | Michael Holynski Co-Founder | WebflowApple iCloud MailMicrosoft 365+16 | Top 50M | 7 patents Laser cavity polarization control and modular baluster design for construction applications | — |
| 26 | Rahko Systems Discovers and develops quantum machine learning technologies | $2M | 82 mo ago | 11 | Miriam Cha Co-Founder & COO | — | — | — | — |
| 27 | Quantum Base Quantum IoT and device security solutions provider | $1M | 86 mo ago | 5 | Robert Young Co-Founder | WordPressApple iCloud MailGoogle Workspace+26 | Top 5M | 139 patents Optical security tags and 3D physical unclonable functions for authentication | — |
| 28 | Qoro Quantum Developer of a network operating system for distributed quantum computing | $750K | 4 mo ago | — | Stephen DiAdamo Co-Founder & CTO | WordPressMySQLPHP+22 | Top 50M | — | — |
| 29 | Quantopticon Developer of a software suite for designing and optimizing quantum devices | $100K | 53 mo ago | 3 | Mirella Koleva Co-Founder & CEO | — | — | 8 patents Quantum optical system simulation tools for electromagnetic pulse interaction | — |
Top 12 Quantum Computing companies in England
#1
Series C · London, England · founded 2017$221.6Mraised▾
Developer of AI-based quantum computing hardware products. It provides users with a platform for developing quantum computers on silicon chips AI-based solutions and semiconductor manufacturing processes. It also provides users with developing fault-tolerant quantum computing architectures that are compatible with the CMOS process.
- May 2026Series C$160M
- Feb 2023Series B$50.5M
- Sep 2020Grant (prize money)$611.2K
- May 2020Series A$9.8M
#2
Series A · Cambridge, England · founded 2018 · 15 employees$12.1Mraised▾
Developer of quantum cryptography systems. It develops modular hardware based on single-photon source array technology for quantum cyber security. It also provides a quantum random number generator which generates secure encryption keys, and a quantum key distribution system that provides quantum-secure communication.
- Dec 2025Series A$60M
- Nov 2023Seed$8.5M
- Oct 2020Seed$2.7M
- Sep 2019Seed$830.9K
#3
Series B · Bristol, England · founded 2019 · 13 employees$22.4Mraised▾
Provider of quantum simulation systems. The company is providing quantum theory and software that will enable quantum computers to investigate novel quantum materials to simulate chemical reactions and to solve hard constraint satisfaction problems. It also provides users with a platform that offers proprietary material simulation approaches for encoding and compiling materials on quantum hardware.
- Sep 2025Series B$34M
- Aug 2023Series A$16.5M
- Dec 2020Seed$5M
- May 2019Seed$950K
#4
Seed · Southampton, England · founded 2020 · 4 employees$5.6Mraised▾
Manufacturer of cold-atom quantum devices
- Nov 2025Grant (prize money)$1.8M
- Sep 2024Seed$5.6M
#5
Series A · Sheffield, England · founded 2021 · 7 employees$6.3Mraised▾
Provider of network security solutions for enterprises. Provides hardware-enforced device allows for rapid data processing and maintaining network security. The FPGA architecture allows for encryption and decryption processes to be executed in nanoseconds, achieving latencies as low as 835 nanoseconds.
- Oct 2025Series A$10.1M
- Feb 2024Seed$6.3M
#6
Seed · Oxford, England · founded 2020 · 8 employees$2.7Mraised▾
Manufacturer of quantum random number generators. It develops embedded quantum random number generators (QRNG) that generate unbiased and true random numbers. It has applications in providing quantum security for encryption systems.
- Dec 2025Grant (prize money)$2.3M
- Sep 2023Grant (prize money)$2.6M
- Oct 2021Grant (prize money)$1.4M
- Oct 2021Seed$1.4M
#7
Seed · London, England · founded 2024$750Kraised▾
Developer of a network operating system for distributed quantum computing. The company builds a hardware-agnostic software and orchestration stack. It focuses on integrating quantum computers into classical high-performance computing systems. The platform supports parallelizing and executing quantum applications at scale. It automates batch job construction and manages execution workflows. The system delivers a cloud experience with dedicated instances for secure integration.
- Apr 2026Seed$750K
#8
Series C · Cambridge, England · founded 2016 · 70 employees$122Mraised▾
Provider of software for quantum computers. It provides computing elements in the stack accessible like CPU, FPGAs and qubits, and quantum error correction. It also can be used in measurement strategies, noise models, and algorithms.
- Aug 2024Series C$75M
- May 2024Grant (prize money)$2.6M
- Apr 2023Series B$18.7M
- Jun 2022Grant (prize money)—
#9
Seed · Birmingham, England · founded 2022 · 4 employees$1.9Mraised▾
Provider of gravity gradient cartography, quantum technical consulting, and other services
- Sep 2025Seed$6.2M
- Jul 2023Grant (prize money)—
- Jul 2023Seed$1.9M
#10
Series B · Reading, England · founded 2017$150.2Mraised▾
Developer of quantum computing hardware for commercial and research applications. These systems function as co-processors integrated with classical computing infrastructure to perform complex calculations. The hardware architecture utilizes physical qubits to execute gate operations for computational tasks. Access to these systems is provided through cloud environments and direct deployment within data centers. The technology supports the development of algorithms for various technical and scientific fields.
- Nov 2023Series B$100M
- Feb 2023Series A$1.1M
- Jul 2022Series A$46.4M
- Aug 2020Grant (prize money)—
#11
Series B · Oxford, England · founded 2018 · 8 employees$65.3Mraised▾
Provider of quantum computing solutions for secured communication. It uses post-quantum algorithms to protect data. It also uses a cryptographic SDK for mobile and server technologies that can protect sensitive information, identities, and cybersecurity infrastructures. It provides solutions to industries, such as the automotive, industrial, and manufacturing industries.
- Apr 2024Series B$37M
- May 2023Series A$11.9K
- Jan 2023Grant (prize money)—
- Oct 2022Series A$43.2K
#12
Series A · Oxford, England · founded 2024$4Mraised▾
Provider of real-time chemical sensors for environmental and industrial applications. These sensors offer robust, continuous monitoring capabilities in remote locations. The technology utilizes micron-scale quantum technology for highly sensitive measurements, achieving lab-grade accuracy in a plug-and-play format. Applications include environmental monitoring, precision aquaculture, water process control, and defense. The company also offers sensor adaptation for various analytes and liquid-based deployments. Beta trials are available for phosphorus and ammonia sensors.
- Apr 2025Series A$4M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Quantum Computing coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Quantum Computing is moving in the United Kingdom
A read on the academic research around Quantum Computing — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 2,237 United Kingdom-affiliated papers.
- University of Oxford324
- Institute of Physics201
- Imperial College London186
- University College London156
- University of Cambridge145
- Qubit132→568
- Quantum computer62→378
- Quantum algorithm15→172
- Quantum entanglement39→116
- Quantum circuit2→59
- Qubit40→224
- Quantum computer16→154
- Quantum algorithm3→80
- Quantum mechanics8→38
- Quantum entanglement13→43
- Qubit6→80
- Quantum computer6→77
- Quantum algorithm2→30
- Quantum error correction1→19
- Quantum decoherence1→13
Where quantum computing is researched across United Kingdom
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing quantum computing patents in the United Kingdom
United Kingdom quantum computing patent filing is accelerating — 1,189 filings from 795 assignees (2016–2025), led by IBM, IBM UK, Quantum Motion TECH; annual filings 33→295.
- IBM222
- IBM UK222
- Quantum Motion TECH91
- Riverlane86
- UNIV Oxford Innovation69
- Universal Quantum62
- Oxford Ionics62
- Cambridge Display TECH52