The Australian quantum technology company has become a unicorn by developing software that makes quantum computers and sensors more reliable in real-world environments.
Sydney-based Q-CTRL has raised $290 million in a Series C led by Salesforce Ventures, reaching a valuation above $1 billion.
The round included substantial participation from Bullhound Capital and Affinity Partners, alongside investors including AMD Ventures, Lockheed Martin Ventures, In-Q-Tel, Square Peg and Main Sequence.
Founded in 2017 by physicist Michael J. Biercuk, Q-CTRL develops software designed to reduce errors and improve the performance of quantum technologies.
Its products target two markets: quantum computing infrastructure and quantum sensing.
Navigating Without GPS
Modern aircraft, vehicles and drones depend heavily on satellite navigation.
But GPS signals can be disrupted or manipulated, creating major challenges for commercial aviation, autonomous systems and defense operations.
Q-CTRL is developing quantum-assisted navigation technology designed to operate when GPS is unavailable.
Its Ironstone Opal system combines quantum sensing hardware with proprietary software to estimate movement and position without relying on conventional satellite signals.
The company reports progress toward deployment in commercial aircraft and autonomous vehicles.
Its collaborations include Airbus and Lockheed Martin.
Making Quantum Computers More Reliable
Quantum computers are exceptionally sensitive to environmental interference and hardware imperfections.
Small disturbances can produce errors that make calculations unreliable.
Q-CTRL develops software that controls quantum hardware and suppresses errors, improving the usefulness of existing systems.
The company argues that software improvements can unlock practical applications without requiring entirely new generations of quantum processors.
Its technology has been demonstrated through quantum computing partnerships, including work involving IBM hardware.
A Quantum Company With Commercial Ambitions
Q-CTRL is positioning itself as infrastructure software rather than a manufacturer of quantum computers.
This allows the business to work across different hardware platforms and address applications in aviation, navigation, industrial sensing and computing.
The company reports commercial customers and revenue but has not disclosed detailed financial results.
Its funding will support global expansion, software development and larger customer deployments.
The central challenge is turning promising quantum performance into dependable economic advantages outside controlled research settings.
Sources: Q-CTRL; The Quantum Insider; Axios (12 November).