M&A / Property
Atkinsrealis appointed to nuclear decommissioning JV

ATRL · Price
Executive Summary
- Atkinsrealis Group Inc. has been appointed by Sellafield Ltd. to a major 15-year nuclear decommissioning and waste framework, securing three of the four available lots through separate joint ventures.
- The total maximum value of the framework across all four lots is £4.6 billion, with an initial term of nine years and an option to extend for six years until 2040.
- Atkinsrealis will leverage its joint ventures with Altrad Support Services Ltd. and Amentum Clean Energy/Westinghouse Electric Company U.K. Ltd. to deliver remediation, retrievals, engineering design, and waste management services at the Sellafield site.
Key Details
- Contract Structure: Atkinsrealis appointed to three of four lots in the Sellafield decommissioning and nuclear waste partnership framework.
- Joint Venture 1 (Altrad Support Services Ltd.): Atkinsrealis appointed as remediation partner (Lot 1) and integrated nuclear waste partner (Lot 4).
- Joint Venture 2 (Amentum Clean Energy and Westinghouse Electric Company U.K. Ltd.): Atkinsrealis appointed as Sellafield's pond retrievals partner (Lot 2).
- Financial Value: The total maximum value of the framework across all four lots is £4.6 billion.
- Duration: Initial period of nine years, with an option for a further six years, extending the total potential term to 15 years (until 2040).
- Scope of Services: Includes remediation and retrievals, safety case and engineering design, construction delivery, demolition, and waste management services.
- Historical Context: Atkinsrealis has supported Sellafield for over 30 years, previously providing remediation, decommissioning services, and deploying technology, robotics, and AI to improve safety and speed.
Notable Quotes
- "The safe and efficient decommissioning and waste management of legacy nuclear sites is vital for future generations, and the approaches being developed and deployed at Sellafield have a transformative impact across the global sector," said Ian L. Edwards, president and chief executive officer, Atkinsrealis.
- "This significant appointment is testament to the long-standing relationships our engineering and waste management teams have built with Sellafield Ltd. and the impact of continued collaboration with our industry partners to support Sellafield's long-term strategy for the site," said Joe St. Julian, president, nuclear, Atkinsrealis.
More from Atkinsrealis Group Inc
Jun 25, 2026 · 07:45