About Oxford Sigma

Oxford Sigma was founded in March 2019 by Dr Thomas P. Davis and Jonathan Musgrove to tackle the emerging need for materials science expertise in advanced nuclear systems to achieve commercialisation.

We are expanding at a fast pace in the energy and defence sectors. Through collaboration with industry, academia, and government, the company has expanded into patent and product development in fusion technology, as well as expanding its services into defence & energy strategy.

Executive Team

Thomas Paul Davis

Dr Thomas Davis

President & Chief Technology Officer

Thomas has a background in engineering, materials science, fusion engineering, and nuclear regulation. He leads the Company’s research and development team on fusion and fission energy systems. He holds a PhD (DPhil) in Nuclear Materials from the University of Oxford and an MEng in Nuclear Engineering from the University of Birmingham.
Jonathan Musgrove

Jonathan Musgrove

Chief Executive Officer

Jonathan has a background in chemical engineering, nuclear regulation, and regulatory compliance. Jonathan leads the Company’s defence business. He holds an MEng in Chemical Engineering from the University of Birmingham.


Our Office

We are based at the world-leading science business park, Harwell Science & Innovation Campus in Oxfordshire, which provides a rich, engaging environment with fellow similar companies who work in the space, health, and energy sectors.

The campus has a rich history; it was initially RAF Harwell, which was created to support the World War II efforts, and was eventually converted into the epicentre for nuclear energy development from 1946 to 1990. Today, Harwell hosts the Diamond Light Source, ISIS neutron scattering facility, and has over 200 organisations on site.

For more information on the campus, please see https://www.harwellcampus.com/

Oxford Sigma is looking to expand its team with technical and organisational staff members. 

Please see the job postings for further details on how to apply. If no specific job postings are available and you believe that your skills and experience could be suitable for Oxford Sigma, please send an email with a CV and cover letter attached to [email protected].


12/2021: Full Time Materials Engineer: pdf

12/2021: Part Time Administrator: pdf