Q-CTRL Raises $290 Million Series C, Claims Quantum Unicorn Status

Q-CTRL has raised US$290 million (A$415 million) in a Series C led by Salesforce Ventures, a round the Sydney-based company calls the largest quantum-sector raise ever for a software-focused business. The company labels itself the newest quantum unicorn, meaning a valuation of at least $1 billion, but it did not disclose the actual figure.

The round is more than double Q-CTRL's entire prior fundraising. Through October 2024 the company had raised $133 million in total, including a $59 million extension that took its Series B to $113 million. The company said the Series C was oversubscribed and expanded twice.

Who put in the money?

The headline participants beside lead investor Salesforce Ventures are Bullhound Capital and Affinity Partners. The new backers form a notably diverse group:

• Affinity Partners
• AMD Ventures
• EDGE Group, an Abu Dhabi defense company
• MPower Partners of Japan
• Australia's National Reconstruction Fund Corporation
• SPARX Asset Management

Returning investors include Salesforce Ventures, Bullhound Capital, DCVC, Main Sequence, Square Peg, the CIA-backed In-Q-Tel and Lockheed Martin Ventures. The mix spans strategic chip money, defense capital and Australian state funding, and the presence of both In-Q-Tel and EDGE signals demand from security-minded customers on more than one continent.

What does the company actually sell?

Q-CTRL sells two kinds of product. The first is control software that uses AI to stabilize quantum computers and extract more useful results from them. A materials simulation built on that software runs on IBM hardware and can be called directly from the IBM Quantum Platform.

The second product line is navigation. The Ironstone Opal quantum navigation system works without GPS, which the company says makes it resistant to jamming and spoofing. Q-CTRL says the system has been deployed on commercial aircraft with Airbus, on autonomous platforms with Lockheed Martin, and on drones. The company also claims its software lets its sensors perform 100 times better in the field than the best alternative. That claim is the company's own and has not been independently verified.

Where will the money go?

The funds are earmarked for four areas, according to the company:

• AI-driven software development
• Wider deployment of its navigation systems
• Programs in finance and energy
• Autonomy and aerospace contracts

MPower Partners plans to help Q-CTRL expand in Japan, giving the company a route into one of Asia's largest industrial markets. Q-CTRL cited revenue growth but gave no revenue figures, so the commercial traction behind the round rests on customer names rather than disclosed financials.

Why software, not machines?

The round's size makes a specific argument about where value sits in quantum computing today. Salesforce Ventures partner Robert Keith put the thesis plainly: "The hard problem in quantum is not building the machine, it is getting useful output from it."

That framing explains why a software company out-raised many hardware developers. Building qubits is hard, but turning unstable machines into reliable tools is the bottleneck that decides whether quantum computers deliver anything usable. Q-CTRL positions its AI-driven control layer as the piece that closes that gap, and its investor list — spanning chips, defense and enterprise software — suggests several industries expect that layer to matter.

What comes next?

With $290 million in hand, a claimed unicorn valuation and deployments alongside Airbus and Lockheed Martin, Q-CTRL now faces the task of converting a software story into disclosed revenue. Its expansion into Japan, finance and energy will show whether quantum control software can grow beyond defense contracts into a broad commercial business.