Mark Thomas
Chief Executive Officer

Mark heads our strategy as we explore the possibilities of hypersonic flight, power next-generation space access and revolutionise thermal management. He’s the international face of Reaction Engines to the world’s media, in the highest political circles and at global events.

Under Mark’s leadership we’ve grown from 60 to over 200 employees in just five years. We’ve recruited and developed some of the UK’s top young scientists, engineers and apprentices. Secured significant investment. Won numerous business, aerospace and innovation awards. Built successful relationships with global companies, government agencies, innovators, and entrepreneurs. And created a track record of achieving world-first technological breakthroughs.

His lifelong passion for engineering and technology means he relishes the chance to do things never done before. He’s worked on a wide range of exciting and varied projects from imagination to delivery for over 30 years, on some of the most prestigious and challenging projects in aerospace history.

Before joining Reaction Engines, Mark spent 25 years at Rolls-Royce working on challenging multi-national aero-engine programmes and leading cutting-edge technology developments aimed at the future of sustainable aviation.

As a longstanding Chartered Engineer, mentor of younger engineers, and Fellow of the Royal Aeronautical Society, he inspires our teams to achieve amazing things and develop truly world-changing technologies and solutions.