Competition with a shortlist
Competitive procedure with a selection stage: suppliers were shortlisted before being invited to bid.
Key facts
- Buyer
- Sellafield Limited · Nuclear
- Suppliers
- A2R (Altrad Support Services Limited and AtkinsRéalis UK Li, Amentum Clean Energy Ltd, NDS (Altrad Support Services Ltd, Cavendish Nuclear Ltd, Shepley, TDA (AtkinsRéalis UK, Amentum Clean Energy, Westinghouse El
- Value
- £4,600,000,000
- Procedure
- Restricted procedure (above threshold)
- Sector
- Construction work · Engineering works and construction works (CPV 45220000)
- Region
- North West
- Official notice
- View on Contracts Finder
- Timeline
-
- Contract date30 Oct 2025
- Published10 Nov 2025Published 11 days after the contract date
Description
Sellafield Ltd is responsible for safely operating and decommissioning Europe's largest, most complex nuclear site, which is home to legacy nuclear facilities that are some of the most hazardous buildings in Western Europe. Sellafield Ltd, through the Decommissioning and Nuclear Waste Partners (DNWP) Framework opportunity, has brought together four partners across four Lots to provide a full suite of expertise and support to deliver decommissioning activities and projects, including asset care. Delivery will be across nuclear facilities on the Sellafield licenced site that are in mix of states including operational, post operation clean out (POCO), decommissioning and demolition. Consequently, the scope of work for the DNWP Framework will include construction delivery, demolition related works, associated technical services (including safety case and design) and waste management with the scope aligned across the following four Lots: Lot 1 Remediation Partners Lot 2 Pond Retrievals Par…
About the suppliers
A2R (Altrad Support Services Limited and AtkinsRéalis UK Li: every public contract they have won.
Amentum Clean Energy Ltd: every public contract they have won, plus their Companies House record (company 01120437).
NDS (Altrad Support Services Ltd, Cavendish Nuclear Ltd, Shepley: every public contract they have won.
TDA (AtkinsRéalis UK, Amentum Clean Energy, Westinghouse El: every public contract they have won.