PRESS RELEASE

OQC Appoints Gerald Mullally as CEO to Lead Global Growth

OQC today announced the appointment of Gerald Mullally as Chief Executive Officer, following his leadership as interim CEO since June 2024.
The move follows OQC’s announced expansion into the US and Board appointments, including Jack Boyer OBE as Chair and Sir Jeremy Fleming, former Director of GCHQ.
With deep experience across industry and government, Mullally is uniquely positioned to lead OQC as it deepens its strategic role in critical national infrastructure.

READING, UK – 28 July 2025 – Oxford Quantum Circuits (OQC), Europe’s leading quantum computing company, today confirmed the appointment of Gerald Mullally as Chief Executive Officer. Mullally has served as interim CEO since June 2024 and now assumes the role permanently, following approval by the Board of Directors.

Mullally’s appointment follows a pivotal period of growth under his leadership, during which OQC expanded its international footprint, launched its industry leading Dimon qubit technology, and secured strategic partnerships across government and enterprise. His leadership has sharpened the company’s global position and laid the foundation for its next phase of commercial scale.

“Gerald has led OQC with clarity, integrity and conviction over the past 14 months, guiding the company through a critical phase of development,” said Dr Peter Leek, Founder and Chief Science Officer of OQC. “His leadership has brought strategic focus to the business and aligned our scientific breakthroughs with long-term growth.”

“Gerald has provided strong leadership through a period of rapid growth and innovation,” said Jack Boyer OBE, Chair of OQC’s Board of Directors. “He is the right leader to take OQC forward as the company shapes the future of quantum computing on the global stage.”

“Gerald brings the strategic focus and leadership needed to guide OQC at a critical time,” said Sir Jeremy Fleming, Board Director. “His experience across industry and government is central to OQC’s role in delivering secure, UK-led quantum capability.”

Commercial Execution and Market Positioning

Gerald has shaped OQC’s commercial direction with a focus on high-impact, mission-aligned markets – including security, defence, and finance. He has overseen international expansion and helped position OQC as a trusted quantum partner to both government and industry.

As interim CEO, Gerald oversaw a series of major strategic milestones, including:

The launch of OQC’s public roadmap, establishing a leadership position in the global race for quantum computing.
The introduction of the OQC Dimon, a dual-rail qubit architecture designed for speed, scale, and quality.
Strategic growth in financial services, security and defence as the first sectors to realise quantum advantage.
Expansion into the United States, with the first-ever quantum computer to be deployed in New York City to deliver low-latency quantum compute directly to Wall Street.
A successful Series B investment round, backed by leading global investors including Chevron and Sumitomo Mitsui Trust Bank.
The launch of the UK’s first quantum error correction testbed and the world’s first integration into a commercial data centre.

Together, these achievements reflect Gerald’s ability to translate vision into execution, advancing OQC’s leadership across technology, markets, and infrastructure.

“Leading OQC is a tremendous honour,” said Gerald Mullally. “We are not only building a world-class quantum company – we’re shaping a new global industry. I’m proud to work with such talented people to realise the profound potential of our core architecture and deliver commercial impact at scale.”

Leadership Across Government and Industry

Gerald Mullally brings two decades of cross-sector leadership experience to his role as CEO. He has led strategy and technology initiatives across financial services, security, defence and energy, during his time at Accenture and PwC.

Alongside his commercial background, Gerald spent eight years as a senior official in the UK Prime Minister’s Office and Cabinet Office, where he worked on national security issues. This combination of commercial execution and government insight uniquely positions him to lead OQC through its next phase of global growth.

About OQC

Oxford Quantum Circuits (OQC) is pioneering the quantum-accelerated world, delivering enterprise-grade quantum systems designed for commercial and strategic advantage. As Europe’s first Quantum-Compute-as-a-Service provider, and the only company integrating quantum in commercial data centres, OQC brings quantum capability to the heart of financial and national infrastructure. Our application-optimised compute empowers customers in finance, security, and defence to solve intractable problems – reshaping industries and strengthening sovereign advantage.