Oxford Quantum Circuits
Oxford Quantum Circuits builds superconducting quantum computers deployed directly into commercial data centres, operating Europe's first Quantum-Compute-as-a-Service platform. The company serves financial services, defence, and government customers with proprietary Coaxmon architecture, Dimon qubit technology, and the OQC Toshiko enterprise platform.
- Company typePrivate
- Founded2017
- HeadquartersReading, United Kingdom
- Headcount101–250
- GTM typeB2B
- OfferingSoftware
What Oxford Quantum Circuits does
Oxford Quantum Circuits (OQC) is a private UK quantum-computing company founded in 2017 as a spinout from the University of Oxford by Dr. Peter Leek. OQC builds superconducting quantum computers based on a transmon qubit architecture using proprietary sapphire-based chips, a patented dual-rail Dimon qubit technology that enables a 1:1 physical-to-logical qubit ratio, and a patented Coaxmon 3D architecture that brings key componentry and wiring off-chip. The company set a global benchmark with a 25-nanosecond two-qubit gate — the fastest ever measured — and is pursuing a wafer-scale packaging roadmap targeting 500+ superconducting qubits per wafer and 50,000+ logical qubits on a single 300mm wafer.
OQC operates as Europe's first Quantum-Compute-as-a-Service (QCaaS) provider and the only company deploying quantum systems into commercial data centers. Its flagship OQC Toshiko platform (32 qubits) is delivered through OQC Cloud, direct colocation in enterprise and sovereign data centres, and flexible APIs, and is available on AWS Amazon Braket. Revenue comes from QCaaS subscriptions, direct colocation contracts, and quantum hardware sales — all governed by multi-year Order Forms — with named enterprise and government customers spanning financial services (JPMorgan Chase, Mastercard, NYC capital markets firms), defence (QinetiQ), supercomputing (CESGA), and data-centre partners (Digital Realty, Equinix). The company is headquartered in Reading, UK, with systems deployed in the UK, US, Japan, and a planned Barcelona centre (largest in Southern Europe, construction beginning Q4 2026).
The business is led by CEO Gerald Mullally (formerly Accenture, PwC, and eight years in the UK Prime Minister's Office), with Founder Dr. Peter Leek as CSO. Following a £38M Series A in 2022, OQC closed a £260M ($350M) Series C in June 2026 — Europe's largest-ever private quantum computing funding round — led by Bullhound Capital with British Business Bank, Cofides, Oxford Science Enterprises, SBI, Chevron Technology Ventures, and 12 other institutional investors. The company has ~140 employees and board representation from former GCHQ Director Sir Jeremy Fleming, former HSBC CEO Colin Bell, and Barclays Chairman Nigel Higgins, reflecting an institutional positioning that pairs deep quantum physics with financial-services and national-security credibility.
Oxford Quantum Circuits firmographics
Firmographics- Name
- Oxford Quantum Circuits
- Legal name
- Oxford Quantum Circuits Limited
- Website
- https://oqc.tech
- Company type
- Private
- Founded year
- 2017
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Oxford Quantum Circuits builds superconducting quantum computers deployed directly into commercial data centres, operating Europe's first Quantum-Compute-as-a-Service platform. The company serves financial services, defence, and government customers with proprietary Coaxmon architecture, Dimon qubit technology, and the OQC Toshiko enterprise platform.
- Ownership category
- akta.pro rank
Oxford Quantum Circuits industry classification
Industry- Product category
- Quantum Computing Hardware and Cloud Services
- NAICS
- Semiconductor and Related Device Manufacturing (334413), Semiconductor and Other Electronic Component Manufacturing (3344)
- SIC
- Electronic Computers (3571), Semiconductors & Related Devices (3674)
- akta.pro primary industry
- Quantum Cloud Infrastructure & QPU Hosting (HDAGAIAA)
- akta.pro secondary industries
- QCaaS Platforms & Developer Portals (HDAGAIAB), Hybrid Quantum-Classical Orchestration & Workflow Management (HDAGAIAD), Quantum Cloud APIs, Billing & Metering (HDAGAIAJ), Managed Quantum Services & Enterprise Support (HDAGAIAI)
Keywords
Where Oxford Quantum Circuits is headquartered
LocationHeadquarters
- HQ city
- Reading
- HQ country
- United Kingdom
- HQ region
- Europe
Offices6 records
Markets served
Oxford Quantum Circuits business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Supply Chain, Marketing or Sales, Operations
Revenue model
- Quantum Computing-as-a-Service (QCaaS): OQC provides cloud-based access to quantum computers through its private QCaaS platform. Customers access quantum computing technology via secure login authentication with authorized accounts. Fees are charged based on access duration and number of authorized users as specified in Order Forms.
- Direct Quantum Compute Access: Direct access to OQC's quantum computers and cloud environment, with access subject to defined periods and fees per Order Form.
- Quantum Hardware Sales: Sale and deployment of OQC's quantum computer systems for enterprise and sovereign data center deployment.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Multi-year contract | Enterprise Quantum Access |
Go-to-market motion3 records
Distribution channels6 records
Marketing channels9 records
Oxford Quantum Circuits product offering
Product offeringCore offering
Oxford Quantum Circuits (OQC) builds enterprise-grade superconducting quantum computers and delivers them through Quantum-Compute-as-a-Service (QCaaS), direct colocation in customer and sovereign data centres, and cloud APIs. Its flagship OQC Toshiko platform uses a proprietary 32-qubit Coaxmon 3D architecture and dual-rail Dimon qubits, targeting computationally intensive workloads in financial services, defence, life sciences and advanced materials. OQC is the only company deploying quantum systems directly into commercial data centres, including integrations with NVIDIA AI infrastructure and Equinix Fabric.
Product overview
OQC offers a comprehensive quantum computing portfolio built on superconducting qubit technology with proprietary 3D Coaxmon architecture and dual-rail Dimon qubit design. The flagship OQC Toshiko platform (32-qubit) provides enterprise-ready quantum computing for commercial data centre deployment. OQC's roadmap progresses through four generations: GENESIS (hundreds of operations), TITAN (millions of operations), ATHENA (billions), and ATLAS (trillions, capable of breaking RSA). Access is delivered through OQC Cloud (quantum-as-a-service), direct colocation deployments, and integrations with NVIDIA CUDA-Q, Amazon Braket, and Equinix. The platform integrates quantum computing with AI supercomputing infrastructure for hybrid workloads serving financial services, defense, security, and life sciences sectors. OQC also provides the Toshiko Emulator (powered by Fermioniq) for circuit simulation and open-source QAT compiler toolchain for quantum algorithm development.
Differentiator
Problem solved
Functional benefit
Products and services
- OQC Toshiko Enterprise Quantum Platform OQC's enterprise-ready quantum computing platform featuring a 32-qubit superconducting quantum processor with proprietary Coaxmon 3D architecture, designed for commercial deployment in data centre environments for enterprise and government customers in finance, defence and life sciences.
- OQC Cloud (Quantum-Compute-as-a-Service) Cloud-based access to OQC's quantum computers via a private, secure platform, providing quantum computing capabilities to customers without on-premise hardware, with secure authentication and cloud infrastructure.
- Direct Quantum Compute Access (Colocation)
Quantifiable outcome
- Fastest two-qubit gate benchmark globally at 25 nanoseconds
- +4 more outcomes
Companies that use Oxford Quantum Circuits
Customer profileNamed customers11 records
Segments5 records
Ideal customer profiles4 records
Oxford Quantum Circuits technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
AI capability4 records
Feature8 records
Oxford Quantum Circuits partnerships and signals
Strategic signalPartnerships
20 partnerships are on record, tiered core, major and minor.
- JPMorgan ChasecoreJPMorgan Chase partnered with OQC and AMD to become the first dedicated user of a Quantum-AI research platform in London. The partnership explores applications for risk modeling, portfolio construction, and fraud detection. JPMorgan Chase serves as exclusive placement agent for OQC's Series C funding round.
- AMDcoreAMD partnered with OQC and JPMorgan Chase on Quantum-AI research platform development. AMD announced plans to invest up to £2bn over five years in the UK to accelerate AI innovation and research, including collaborations with Imperial College London and Oriole Networks.
- Fraunhofer EMFTmajorStrategic partnership to accelerate industrialization of superconducting quantum technologies. Combines OQC's quantum system design expertise with Fraunhofer's semiconductor fabrication infrastructure. Leverages Fraunhofer's Quantum CPU Pilot Line for repeatable, industrial-grade manufacturing workflows using CMOS-compatible processes.
- National Physical Laboratory (NPL)majorOQC participated in development of open-source hardware abstraction layer (HAL) enabling software portability across different quantum computing hardware platforms. Consortium led by Riverlane and NPL as part of £7.6M government project.
- Riverlane (Consortium)majorOQC joined UK consortium led by Riverlane awarded £7.6M grant to deploy Deltaflow.OS quantum operating system. Consortium includes SeeQC, Hitachi Europe, Universal Quantum, Duality Quantum Photonics, Oxford Ionics, ARM, and National Physical Laboratory.
- Digital RealtycoreOQC and Digital Realty launched the first Quantum-AI Data Centre in New York City at Digital Realty's JFK10 facility. The platform integrates OQC's GENESIS quantum computer with NVIDIA AI infrastructure, supporting hybrid quantum-AI workloads for enterprise adoption across finance and security sectors. This partnership is part of the UK-US Tech Trade Partnership.
- NVIDIAcoreStrategic collaboration integrating OQC's quantum computers with NVIDIA accelerated computing via CUDA-Q platform. Partnership enables low-latency, high-speed feedback loops within microseconds for hybrid quantum-AI workloads. NVIDIA GH200 Grace Hopper Superchips power the Quantum-AI Data Centre infrastructure.
- RiverlanecoreOQC and Riverlane partnership to build the UK's first Quantum Error Corrected testbed integrated within a data centre with HPC. Riverlane's Deltaflow.OS quantum operating system integrated with OQC's hardware. Partnership enables error-corrected quantum computing available in commercial data centers.
- EquinixcoreOQC's latest quantum device integrated into Equinix's Tokyo data center, accessible via Equinix Fabric for global interconnection. Secure access option created through partnership enabling businesses globally to access OQC's quantum computing capabilities.
- Oxford Instruments NanoSciencecoreOxford Instruments contributed its Cryofree dilution refrigerator, the ProteoxLX, to OQC's Quantum-AI Data Centre in New York. Collaboration enables quantum computing operations at temperatures below 10 mK, critical for superconducting quantum computing.
- QinetiQcoreOQC and QinetiQ demonstrated critical quantum computing application for defence and security. Partnership advancing quantum technology applications for national security and defense sectors.
- MastercardmajorPartnership on advancing quantum for financial services, specifically developing new approaches to fraud detection. Collaboration demonstrating practical quantum applications in payment systems.
- KvantifyminorOQC and Kvantify announced InnovateUK project CoaxChem to develop novel quantum solution for batteries using quantum computing for materials science applications.
- QuantomaticminorOQC partnership with Quantomatic for quantum algorithm development at Waseda University in Japan.
- CESGAmajorOQC selected by Spanish supercomputing centre (CESGA) to deliver quantum computing systems, working alongside Fujitsu.
- CognigrameminorPartnership to test drive hybrid quantum machine learning applications.
- Barclays (Nigel Higgins)coreBarclays Group Chairman Nigel Higgins joined OQC Board as Non-Executive Director. Reinforces OQC's quantum computing leadership in financial services. Higgins brings over four decades of experience in global finance and extensive board-level governance experience.
- HSBC (Colin Bell)coreFormer HSBC Bank plc and HSBC Europe CEO Colin Bell joined OQC Board. Brings deep experience in banking, compliance, and risk management. His prior roles with UK Ministry of Defence and NATO strengthen OQC's strategic capabilities in national security and sovereign technology infrastructure.
- Sir Jeremy FlemingcoreFormer Director of GCHQ (2017-2023) joined OQC Board. Transformed GCHQ into globally recognized cyber institution, established NCSC and co-founded National Cyber Force. Brings wealth of security and defence experience to OQC's leadership team.
- AWS Amazon BraketcoreOQC's quantum computing systems available on AWS Amazon Braket cloud platform, making OQC the first European quantum company on Amazon Braket.
Scale indicators14 records
Recent moves6 records
Expansion highlights7 records
Oxford Quantum Circuits competitors and assessment
Company assessmentDirect peers
- Rigetti Computing: Rigetti is a US-based superconducting quantum computing company offering QCaaS access via its QCS platform. Like OQC, it builds and operates superconducting qubit hardware, targets enterprise/government customers, and pursues hybrid quantum-classical integration — making it the closest publicly-listed peer in technology and business model.
- IonQ: IonQ is a publicly-traded QCaaS provider targeting enterprise customers across finance, pharma, and government with trapped-ion quantum systems. Comparable to OQC in go-to-market (cloud-first enterprise sales) and customer verticals, though IonQ uses a different qubit modality.
Broad incumbents
- IBM Quantum: IBM Quantum is the established global leader in superconducting quantum computing, with the largest installed base (250,000+ users via IBM Cloud), the most aggressive qubit roadmap (Condor, Heron, Flamingo), and full-stack offerings. Comparable to OQC in underlying superconducting transmon technology but vastly larger scale and broader portfolio.
- Google Quantum AI: Google Quantum AI operates one of the most advanced superconducting quantum programs (Willow chip, error-correction milestones) and offers select cloud access. Comparable in superconducting qubit architecture and aggressive scaling roadmap, but backed by Alphabet's much larger capital base and research infrastructure.
- Quantinuum: Quantinuum (Honeywell/Cambridge Quantum merger) is a full-stack quantum computing company offering trapped-ion systems via QCaaS (Microsoft Azure, customers in pharma and finance). Comparable to OQC as a vertically integrated QCaaS vendor targeting enterprise, but uses trapped-ion rather than superconducting qubits.
Emerging players
- PsiQuantum: PsiQuantum pursues fault-tolerant quantum computing using photonic qubits and is the best-capitalized private quantum company globally (>$940M raised, including from BlackRock, Microsoft, and Nvidia). Comparable to OQC's fault-tolerant ambition and enterprise focus, but uses a fundamentally different (photonic) technology.
- Alice & Bob: Alice & Bob is a French superconducting quantum computing company developing cat qubits for hardware-efficient error correction. Directly comparable to OQC as a European superconducting peer pursuing hardware-efficient fault-tolerance, with overlapping target use cases and investor base.
- ORCA Computing: ORCA Computing is a UK-based quantum computing company using photonic and modular architectures; notably supplies systems to the UK Ministry of Defence. Comparable to OQC as a UK sovereign-aligned quantum hardware vendor targeting defense and government workloads.
- QuEra Computing: QuEra is a Boston-based neutral-atom quantum computing company offering cloud access to its 256+ qubit Aquila system. Comparable to OQC as a quantum hardware vendor pursuing scalable architectures and offering access via public cloud (AWS Braket), with overlapping enterprise research customers.
- Quantum Computing Inc. QCi is a US-based, publicly-traded quantum technology company pursuing photonic and quantum-sensing solutions for optimization and security applications. Comparable to OQC as a diversified quantum technology vendor targeting enterprise/government customers with hybrid classical-quantum integration.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Oxford Quantum Circuits social profiles
Digital presenceOxford Quantum Circuits compliance and trust
Trust signalCompliance2 records
Oxford Quantum Circuits financial estimates
Financial estimateRevenue estimate
Valuation estimate
Oxford Quantum Circuits leadership team
Management profileNumber of profiles
Profiles13 records
Oxford Quantum Circuits funding detail
Funding detailFunding overview
Funding rounds5 records
Investors27 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Oxford Quantum Circuits M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Oxford Quantum Circuits
What does Oxford Quantum Circuits do?
Oxford Quantum Circuits (OQC) builds enterprise-grade superconducting quantum computers and delivers them through Quantum-Compute-as-a-Service (QCaaS), direct colocation in customer and sovereign data centres, and cloud APIs. Its flagship OQC Toshiko platform uses a proprietary 32-qubit Coaxmon 3D architecture and dual-rail Dimon qubits, targeting computationally intensive workloads in financial services, defence, life sciences and advanced materials. OQC is the only company deploying quantum systems directly into commercial data centres, including integrations with NVIDIA AI infrastructure and Equinix Fabric.
Is Oxford Quantum Circuits a public or private company?
Oxford Quantum Circuits is a private company. It is classified as venture growth investor backed and is currently operating.
When was Oxford Quantum Circuits founded?
Oxford Quantum Circuits was founded in 2017. It employs 101 to 250 people.
Where is Oxford Quantum Circuits based?
Oxford Quantum Circuits is headquartered in Reading, United Kingdom, in the Europe region.
How does Oxford Quantum Circuits make money?
Three revenue lines are on record. Quantum Computing-as-a-Service (QCaaS) is the primary driver. The others are direct Quantum Compute Access and quantum Hardware Sales.
Who are Oxford Quantum Circuits's main competitors?
Direct peers on record are Rigetti Computing and IonQ. Broad incumbents are IBM Quantum, Google Quantum AI and Quantinuum. Emerging players are PsiQuantum, Alice & Bob, ORCA Computing, QuEra Computing and Quantum Computing Inc..
Does Oxford Quantum Circuits have an API?
No public API is recorded for Oxford Quantum Circuits.
What industry is Oxford Quantum Circuits in?
Oxford Quantum Circuits's product category is Quantum Computing Hardware and Cloud Services. Its primary akta.pro industry code is HDAGAIAA, Quantum Cloud Infrastructure & QPU Hosting, with a secondary code of HDAGAIAB, QCaaS Platforms & Developer Portals. Its NAICS code is 334413 and its SIC code is 3571.