Dr Simon Fabri appointed Chief Executive of HMGCC

We are delighted to announce the appointment of Dr Simon Fabri as our new CEO, who will champion and lead our future work in national security and defence technology.

Simon takes up the role today (11 May), succeeding Dr George Williamson CMG, who has left HMGCC to join the Alan Turing Institute.

Simon joined HMGCC in 2023 to lead our product and engineering teams. Since then, he has overseen significant changes to how the organisation designs and delivers technology, strengthening  our ability to respond to rapidly evolving national security threats.

 Before joining HMGCC, Simon built a career spanning academia and industry, with senior roles across the telecommunications, energy and automotive sectors, followed by leadership positions at Amazon.

He commented: “I am proud to be taking on this role at a time of both significant challenge and opportunity for HMGCC. 

“Technology and national security are becoming ever more closely linked, and that intersection sits at the heart of HMGCC’s mission. I feel a deep sense of responsibility for the work we do and the impact it has on the UK’s security and defence capability.”

As CEO, Simon will focus on building on HMGCC’s existing strengths: investing in its in‑house technical expertise, deepening partnerships with industry and academia, and ensuring that the organisation continues to deliver cutting‑edge capabilities for the national security community.

Simon added: “HMGCC brings together exceptional people, world‑class facilities and a strong location within the Oxford–Cambridge growth corridor. This gives us a unique opportunity to work with partners across the UK to strengthen our national security technology base.”