London, 2026 (GMT) - Global nuclear engineering firm, Assystem, has been selected as a strategic engineering partner on Sizewell C and EDF’s 5-year UK Professional Services Framework (PSF).
As a key partner, Assystem will have a leading role across the various contracts, covering engineering, digital expertise, project management, and construction management on Sizewell C and Hinkley Point C, two GW-scale nuclear power plants in the UK, as well as work on EDF’s existing Nuclear Generation and Nuclear Services.
Assystem has a 60-year heritage in the nuclear sector and the company is ranked among the top two independent nuclear groups in the world, making it the ideal partner in the delivery of the UK’s growing new nuclear programme, which seeks to deliver 24 GW of operating nuclear power by 2050.
Powering new and existing projects
The four new framework agreements will strengthen the support Assystem provides to the UK’s nuclear programme. Under these contracts, the company will also support the design authority of the main licensees and contribute to delivering 6.6 gigawatts of new EPR-generated clean electricity to the UK grid.
Assystem has been a trusted partner to EDF worldwide for over 60 years. This new partnership highlights both Sizewell C’s and EDF’s long-term collaboration with Assystem, as the French multinational energy company continues to seed its investment into the UK’s low-carbon energy infrastructure.
Assystem has also recently announced plans to double its workforce by creating 1,000 new engineering, digital, and project management jobs by 2030 to support the delivery of these crucial nuclear projects, boosting skills and regional economic investment across the UK – strengthening domestic nuclear capabilities and international industry collaboration between France and the UK.
Assystem is proud to stand alongside EDF and Sizewell C as a strategic partner at this pivotal moment for the UK’s new nuclear programme. Our position on the PSF not only strengthens our long-standing collaboration with EDF but also accelerates the delivery of world-class nuclear capabilities in the UK. With our commitment to double Assystem’s UK workforce by 2030, we’re bringing vital skills, innovation, and engineering momentum to help meet domestic energy transition needs