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Diraq

55
ResearchSydney, AustraliaEst. 2022
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2
Physical Qubits
Logical Qubits
99%
2Q Fidelity
Silicon MOS spin qubits, CMOS-fabricated on 300mm foundry line (imec)
Qubit Tech
2022
Founded

About

Diraq is an Australian quantum computing company building silicon spin qubit processors using CMOS semiconductor fabrication. It spun out of UNSW Sydney in 2022 and is based in Sydney, with offices in the US and Singapore. Diraq has raised more than 135 million dollars in total, including 20 million dollars from Australia's NRFC in February 2026, and it partners with GlobalFoundries for volume manufacturing. The company demonstrated 99.9% control accuracy on imec-fabricated CMOS qubits. Its roadmap targets 100 to 200 qubit systems for research partners by 2026 and a first commercial product, with thousands of physical qubits, in the first half of 2029. Diraq is a confirmed DARPA QBI participant and has signed a letter of intent to join Illinois Quantum Park, integrating with the US quantum computing ecosystem. In October 2025, Diraq and NVIDIA demonstrated a low-latency hybrid classical-quantum link via NVQLink, enabling one million fault-tolerant operations in under a minute. In 2025, Diraq published a hot qubits result of 99.85% single-qubit fidelity and 98.92% two-qubit fidelity at 1 Kelvin, a 10x higher operating temperature than conventional superconducting systems, which reduces cooling costs. High-fidelity qubits, above 99% across all metrics, were demonstrated on 300mm wafers at GlobalFoundries and IMEC, confirming industrial CMOS compatibility at volume-manufacturing scale. In May 2026, Diraq reported progress on scaling qubit count by increasing on-chip density, the central engineering thread for its 2029 commercial target. Update 2026-06-17: Diraq is expanding its U.S. operations by doubling its Palo Alto team to advance its silicon-based quantum computing approach. Source: https://quantumzeitgeist.com/silicon-based-quantum-computing-diraq-doubles/ Update 2026-06-11: Diraq aims to achieve a cost of one dollar per qubit using silicon CMOS manufacturing for scalable quantum computing. Source: https://quantumzeitgeist.com/diraq-qubits-target-per-qubit/ Up

Quantum Specifications

Qubit TechnologySilicon MOS spin qubits, CMOS-fabricated on 300mm foundry line (imec)
Physical Qubits2
2Q Gate Fidelity99%
Error CorrectionBelow fault-tolerance threshold demonstrated; no logical qubit
Quantum Focushardware
Physical Qubits2
2-Qubit Gate Fidelity99%

Key People

AD
Andrew Dzurak
Founder
TT
Tuomo Tanttu
Co-founder

Funding History

series-a$15M
Feb 2024
grant$38M
May 2026
grant$38M
Jun 2026
Total disclosed$91M
grant$38M
2026-06-17
CHIPS
grant$38M
2026-05-22
U.S. Department of Commerce
series a$15M
2024-02-20
QuantonationJohn Higgins Family InvestmentsUNSW

Backed By

Quantonation
Lakestar
Lightspeed Venture Partners
Darpa
Quantum Coast Capital
Type One Ventures
Trumpf Venture
Gic Government Of Singapore Investment Corporation

Application Areas

OptimizationMaterials scienceDrug discovery

Research Partners

UnswU Of Sydney

Frequently Asked Questions

Diraq is an Australian quantum computing company building silicon spin qubit processors using CMOS semiconductor fabrication. It spun out of UNSW Sydney in 2022 and is based in Sydney, with offices in the US and Singapore. Diraq has raised more than 135 million dollars in total, including 20 million dollars from Australia's NRFC in February 2026, and it partners with GlobalFoundries for volume manufacturing. The company demonstrated 99.9% control accuracy on imec-fabricated CMOS qubits. Its r...
Diraq is headquartered in Sydney, Australia.
Diraq was founded in 2022.
Diraq works with Silicon spin quantum technology.
Diraq has 2 physical qubits.
Diraq operates in the following sectors: silicon spin, quantum processors, quantum hardware, quantum research, quantum simulation.
Diraq has raised $135M+ in total disclosed funding.
Diraq reports a two-qubit gate fidelity of 99%, a key measure of how accurately its quantum hardware performs entangling operations.