What QuantWare does

QuantWare B.V., founded in 2021 in Delft, Netherlands as a spinout from QuTech at TU Delft by Matt Rijlaarsdam (CEO) and Alessandro Bruno (CTO), designs, fabricates, and integrates superconducting quantum processing units (QPUs) for use in quantum computing systems. Its core technology is VIO™ (Vertical Input/Output), a proprietary 3D chiplet-based architecture that the company positions as the only proven pathway to break the so-called QPU "wiring wall" and scale to 10,000-18,000 qubits in a single cryogenic system — roughly 100x current industry state-of-the-art. The product portfolio is organized into two families: the A-Line, surface-code-optimized processors (Contralto-A17, Tenor-A41, Baritone-A250, Bass-A10K) targeting quantum error correction, and the D-Line, scalability-optimized processors (Soprano-D5, Contralto-D21, Tenor-D64, Baritone-D450, Bass-D18K) targeting NISQ and large-scale workloads. Supporting offerings include Crescendo travelling wave parametric amplifiers (TWPAs) for qubit readout, VIO Foundry Services for third-party chip fabrication, and VIO Packaging Services for chiplet integration.

The company serves quantum computing companies (e.g., Alice & Bob, Qilimanjaro), national technology institutes (ETRI, Technology Innovation Institute, University of Naples Federico II, University of Waterloo), research universities, and global technology conglomerates. It operates across 20 countries and reports being the world's largest commercial QPU supplier by volume with 50+ customers. Revenue is generated through hardware sales of QPUs and TWPAs (quote-based, multi-year contracts) and professional services (foundry and packaging). Distribution combines direct enterprise sales backed by dedicated Customer Success Engineers and Application Scientists with system integrator partnerships (ParTec, TreQ), Arrow Electronics for component distribution, and the Quantum Utility Block (QUB), a pre-validated reference architecture combining QuantWare QPUs with Qblox control electronics, Q-CTRL calibration software, Maybell Quantum cryogenics, and NVIDIA NVQLink for hybrid classical compute.

QuantWare has raised approximately $225M in cumulative disclosed funding, with the $178M Series B in May 2026 (led by Intel Capital and In-Q-Tel) standing as the largest private funding round ever recorded for a dedicated quantum processor company. Proceeds fund the KiloFab fabrication facility in Delft, which the company expects to deliver a 20-fold increase in production capacity. The company's strategic posture is the "industrial backbone" of the global quantum supply chain — selling into a fragmented landscape of quantum system builders, national programs, and hyperscalers via an open-architecture model rather than a vertically integrated stack.

Name

QuantWare

Legal name

QuantWare B.V.

Website

https://quantware.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

101–250 employees

Short description

QuantWare B.V., founded 2021 in Delft as a QuTech/TU Delft spinout, designs, fabricates, and supplies superconducting quantum processors (QPUs) based on its proprietary VIO™ 3D chiplet architecture, serving 50+ quantum computing companies, national institutes, and technology conglomerates across 20 countries.

Ownership category

akta.pro rank

Product category

Quantum Computing Hardware

NAICS

Semiconductor and Related Device Manufacturing (334413), Semiconductor and Other Electronic Component Manufacturing (33441)

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

Superconducting QPU Systems (HDAGAAAA)

akta.pro secondary industries

QPU Packaging, Interconnects & Chiplets (Quantum Processor Integration) (HDAGAAAJ), Modular & Networked QPU Systems (Multi-QPU Architectures) (HDAGAAAI)

Keywords

• Superconducting quantum processors
• Quantum computing hardware
• Quantum processor manufacturing
• Quantum error correction
• Chiplet quantum architecture

Headquarters

HQ city

Delft

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. Quantum Processor Sales: QuantWare designs, fabricates, and integrates quantum processing units (QPUs) including A-Line (error correction) and D-Line (scalability) product families. Products range from 5-qubit (Soprano-D) to 64-qubit (Tenor-D) processors, with roadmap to 10,000+ qubit systems.
2. Peripheral Components: Sale of Crescendo travelling wave parametric amplifiers (TWPAs) for quantum system readout, including enterprise offerings for hyperscalers with volume pricing and flexible delivery schedules.
3. Foundry Services: Provides access to VIO scaling platform fabrication capabilities for third-party qubit chip designs, enabling customers to build custom processors using QuantWare's infrastructure.
4. Packaging Services:

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

QuantWare designs, fabricates, and integrates superconducting quantum processing units (QPUs) under its proprietary VIO™ Vertical Input/Output 3D chiplet architecture, with two product families (A-Line for quantum error correction and D-Line for scalable NISQ workloads) ranging from 5 to 18,000 qubit processors. The company also sells peripheral components (Crescendo TWPAs), provides VIO-based foundry and chiplet packaging services, and delivers pre-validated reference architectures (Quantum Utility Block) combining its QPUs with partner control electronics and software.

Product overview

QuantWare offers a comprehensive portfolio of superconducting quantum processors, peripherals, and services built on its proprietary VIO (Vertical Input/Output) technology. The product lineup consists of two processor lines: A-Line (optimized for quantum error correction with tunable couplers and Purcell filters) and D-Line (designed for scalable NISQ applications). A-Line includes Contralto-A17, Tenor-A41, Baritone-A250, and Bass-A10K (10K qubits). D-Line includes Soprano-D5, Contralto-D21, Tenor-D64 (world's largest commercially available), Baritone-D450, and Bass-D18K (18K qubits). Supporting products include Crescendo TWPA for qubit readout amplification, Foundry Services for custom VIO chip fabrication, and Packaging Services for chiplet integration. The Quantum Utility Block (QUB) provides a pre-validated reference architecture combining QuantWare processors with Qblox control electronics and Q-CTRL software for rapid quantum system deployment.

Differentiator

Problem solved

Functional benefit

Products and services

• Soprano-D5 A 5-qubit superconducting QPU in the D-Line product family, designed as an entry-point processor with streamlined architecture for rapid integration by system integrators.
• Contralto-D21 A 21-qubit superconducting QPU in the D-Line product family, designed with a compact, integration-friendly layout that enables complex multi-qubit experiments while preserving simplicity.
• Tenor-D64 A 64-qubit D-Line superconducting QPU optimized for high-density layouts and stable system performance, recognized as the world's largest commercially available QPU for on-prem deployment and the recipient of the 2026 Gold Edison Award in High-Density Computing Infrastructure.
• Baritone-D450 A 450-qubit D-Line superconducting QPU targeting large-scale NISQ workloads and advanced multi-qubit experiments within a single system, scaling via VIO chiplet technology.
• Bass-D18K An 18,000-qubit D-Line superconducting QPU designed to provide unmatched scalability in a single, integration-ready QPU for large-scale NISQ applications.
• Contralto-A17 A 17-qubit A-Line superconducting QPU optimized for real-time quantum error correction, featuring a distance-3 surface code architecture with tunable transmon qubits, tunable couplers, and Purcell filters — recognized with the 2025 Quantum Effects Award as the largest commercially available QPU designed for advanced quantum error correction protocols.
• Tenor-A41 A 41-qubit A-Line superconducting QPU designed to enable logical two-qubit gates and advance the quantum error correction frontier.
• Baritone-A250 A 250-qubit A-Line superconducting QPU designed to support logical circuits for advanced quantum error-corrected workflows.
• Bass-A10K A 10,000-qubit A-Line superconducting QPU designed to enable logical algorithms previously out of reach, scaling modularly from VIO-1K to VIO-40K architectures.
• Crescendo TWPA A travelling wave parametric amplifier (TWPA) peripheral component providing market-leading gain (up to 13 dB SNRi) and noise performance for multiplexed qubit readout, enabling scalable quantum system readout; offered in standard and enterprise (hyperscaler) versions.
• Foundry Services VIO-based quantum fabrication services providing customers with access to QuantWare's fabrication platform for custom qubit chip designs, featuring >100μs Transmon T1, advanced junction targeting and trimming, component library access, and up to 40K-line processor manufacturing capability.
• Packaging Services VIO-powered chiplet packaging services that transform customer qubit chiplets into scalable quantum processors by assembling them into fully connected VIO-powered QPUs, simplifying qubit chip design by eliminating complex 2D routing circuits and enabling high-yield production.
• Quantum Utility Block (QUB) A pre-validated, on-premises quantum computing reference architecture jointly engineered with Q-CTRL and Qblox that delivers a modular, circuit-ready quantum computer combining QuantWare QPUs with Qblox control electronics and Q-CTRL Boulder Opal Scale Up software; offered in Small (5 qubit), Medium (21 qubit), and Large (41+ qubit) configurations.
• QuantWare Superconducting QPU (initial commercial product) QuantWare's foundational commercial offering — the world's first commercially available superconducting quantum processor — launched as a spinout from QuTech at TU Delft in 2021 and serving as the entry point for QuantWare's broader A-Line and D-Line QPU portfolio.

Quantifiable outcome

• 100x qubit density improvement with VIO-40K (10,000 qubits vs current ~100 qubit systems)
• +4 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

Feature6 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• QuTech / TNO / QDNL / Qblox / Delft CircuitscoreStrategic or Co-development Partner · 3 July 2026QuantWare joined Dutch delegation at Quantum Korea 2026 alongside QuTech, TNO, QDNL, Qblox, and Delft Circuits for the second consecutive year, fostering research partnerships in Korea's quantum technology ecosystem.
• European Cloud Sovereignty CoalitionminorStrategic or Co-development Partner · 3 June 2026QuantWare joined 13 European cloud providers backing the EU's Tech Sovereignty Package to reduce dependence on US hyperscalers. Coalition focuses on prioritizing European firms for public-sector contracts.
• Q-CTRLcoreTechnology or Integration · 16 March 2026Partnership to deliver autonomous calibration solution for QuantWare QPUs. Q-CTRL's Boulder Opal Scale Up software enables push-button tuneup of quantum computers, reducing calibration from days to hours.
• QbloxcoreTechnology or Integration · 16 March 2026Qblox provides modular control electronics for the Quantum Utility Block (QUB) system, delivering high-fidelity connectivity to all QPU components for stable and precise quantum operation.
• Maybell QuantumcoreTechnology or Integration · 16 March 2026Maybell provides cryogenic wiring and refrigeration infrastructure for the QUB system, providing the ultra-low temperature environment needed for reliable quantum performance. Partnership includes ColdCloud cooling technology reducing energy consumption by 90%.
• Arrow ElectronicsminorChannel Partner/ Reseller/ Distributor · 16 March 2026Arrow Electronics provides distribution capabilities for the QUB framework, enabling broader market access for quantum computing infrastructure.
• Elevate QuantumcoreStrategic or Co-development Partner · 16 March 2026Elevate Quantum deployed Q-PAC, the first commercially deployable Quantum Open Architecture system in the US, using QuantWare's QPUs. System built in 5 months using QUB architecture.
• QuantrolOxcoreTechnology or Integration · 12 May 2025Partnership to provide automated QPU characterization and tune-up through QuantrolOx's Quantum EDGE software. Achieved fully-automated 2-qubit CZ gate creation in under 25 minutes.

Scale indicators11 records

Recent moves7 records

Expansion highlights7 records

Broad incumbents

• Google Quantum AI: Google operates its own superconducting quantum processor program (Sycamore, Willow) with vertical integration across hardware, control, and software. Comparable to QuantWare as a superconducting QPU developer, though primarily serving internal research and cloud-access workloads rather than selling processors commercially.
• IBM Quantum: IBM's quantum division develops and operates superconducting quantum processors (Condor, Heron, etc.) as part of a vertically integrated stack including control systems, Qiskit software, and cloud access. It is the largest incumbent competitor in superconducting QPUs and offers full-stack alternative to QuantWare's open-architecture approach.

Others

• Quantum Machines: Quantum Machines provides quantum control hardware and orchestration software (OPX) used in many superconducting quantum systems. While not a QPU maker, it is part of the open-architecture ecosystem and a partial alternative/complement to Qblox control electronics used in QuantWare's QUB system.
• QuTech: QuTech is a Dutch quantum research collaboration between TU Delft and TNO, from which QuantWare was spun out in 2021. While not a commercial competitor, QuTech is a foundational enabling partner providing research collaboration and talent pipeline for QuantWare.
• ParTec: ParTec is a German system integrator and HPC software company that partners with QuantWare to deliver complete quantum computing solutions. It functions as a channel partner integrating QuantWare QPUs into broader HPC/quantum systems.
• Maybell Quantum: Maybell Quantum provides cryogenic wiring and refrigeration infrastructure used alongside QuantWare's QPUs (ColdCloud partnership). It is a complementary ecosystem enabler rather than direct competitor, but integral to the QUB reference architecture.

Direct peers

• IQM Quantum Computers: IQM is a European-based developer and supplier of superconducting quantum processors, offering on-premises quantum computers to research institutions and HPC centers. It is one of the most direct competitors to QuantWare in commercial superconducting QPU sales.
• Rigetti Computing: Rigetti is a publicly traded superconducting quantum computing company that designs, fabricates, and sells quantum processors and full-stack systems. Directly comparable to QuantWare in superconducting QPU architecture and commercial processor sales to enterprise and government customers.

Emerging players

• IonQ: IonQ is a publicly traded quantum computing company pursuing trapped-ion QPU technology and cloud-access delivery. Comparable as a quantum hardware competitor competing for the same national/enterprise quantum budgets, though using a different qubit modality than QuantWare's superconducting approach.
• Alice & Bob: Alice & Bob is a French quantum computing company developing cat qubits, a superconducting architecture variant. Listed as a QuantWare customer, it represents an emerging player pursuing an alternative superconducting modality targeting fault tolerance.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/quantware

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Funding overview

Funding rounds5 records

Investors12 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about QuantWare