Building the Future of Fusion Energy
ILIOS is the Construction Partner for the STEP Programme, bringing together multi-disciplinary delivery expertise within a single governance and accountability framework to support the STEP programme.
News & Insights
Stay up to date with the latest developments from ILIOS and the STEP Fusion programme, including project milestones, engineering innovation and industry expertise.
16 March 2026
ILIOS appointment speeds delivery of STEP Fusion at West Burton
https://www.gov.uk/government/news/ilios-appointment-speeds-delivery-of-step-fusion-at-west-burton
17 March 2026
UK fusion boom with Kier JV on £200M plant, £45M supercomputer and tritium facility supplier
Partners
Meet the companies helping to shape and deliver this programme.
Kier is a leading UK infrastructure services, construction and property group. Its purpose is to sustainably deliver infrastructure which is vital to the UK and it is committed to leaving lasting legacies through its work. Kier provides design and build capabilities and the knowledge, skills and intellectual capital of its people to ensure it can project manage and integrate aspects of a project.
NUVIA, a subsidiary of VINCI Construction’s Specialty Networks division, has over 60 years of experience in highly regulated industrial environments. The company provides engineering services, solutions and products for the design, construction, operation and decommissioning of facilities across the nuclear, defence and nuclear medicine sectors.
AECOM brings decades of global leadership in the delivery of complex infrastructure and energy programmes, combining multidisciplinary design, programme delivery and digital expertise to support advanced energy technologies, including fusion.
AL_A create transformational architecture for institutions and cities around the world. They will drive the architectural vision for STEP, transforming a former coal power station into a vibrant, science led community that engages the public and improves education, wellbeing and economic prosperity in the region.
Turner & Townsend is a global professional services organisation with over 70 years’ experience successfully delivering major programmes. The organisation brings deep nuclear advisory expertise and a proven track record in safely leading energy and infrastructure programmes, combining strategic planning, programme management, controls, commercial management and assurance to help clients adapt to changing demands and tackle the challenges of complex programme delivery with confidence.
CONTACT US
Get in touch
E-mail: step.expressionofinterest@kier.co.uk
