Pioneering space access and sustainable technologies to elevate life on Earth.

We're innovating in pursuit of the world's net zero goals. Transforming High-Speed flight. And helping make the dream of everyday space flight come true. We are Reaction Engines. We make beyond possible.

To discover more about what Reaction Engines can do for you or your business please get in touch.


The engine that
changes everything.

SABRE – Synergetic Air Breathing Rocket Engine – is a new class of engine for propelling both high speed aircraft and spacecraft.
SABRE is unique in delivering the fuel efficiency of a jet engine with the power and high speed ability of a rocket.

Transforming High-Speed flight.
Pioneering access to space.

We are a privately held technology Company pioneering space access and sustainable technologies. For over 30 years we have been at the forefront of engineering innovation – including developing SABRE, a revolutionary new class of aerospace propulsion. SABRE enables us to go beyond the limits of flight both within and outside the atmosphere. Making space travel and High-Speed flight more efficient, more accessible, more possible.

Developed for SABRE, our proprietary precooler technology is truly transformational. It delivers world-leading heat transfer capabilities across diverse industries to improve performance in motorsport, convert waste heat into renewable electricity and support more sustainable aviation. These revolutionary thermal management solutions have the potential to elevate life on Earth.

From outer space
to your place.

We apply what we learn from our space technology to help diverse industries become more efficient and sustainable.

Making beyond possible.

We develop pioneering technology to accelerate net zero. To reinvigorate High-Speed flight. And to transform access to space. We deliver sustainable thermal management to create a better future.

Get in touch

Reaction Engines Ltd.
Culham Science Centre
Oxon, OX14 3DB