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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:<br/><br/><br/>• Lot 1 Remediation Partners<br/>• Lot 2 Pond Retrievals Partner<br/>• Lot 3 Silos Retrievals Partner<br/>• Lot 4 Integrated Nuclear Waste Partner
| Supplier | Identifier | Award Value | Lots Won | Cross-References |
|---|---|---|---|---|
| A2R (Altrad Support Services Limited and AtkinsRéalis UK Limited) | - | ~£2,600,000,000 estimated from lot values | 2 lots Lot 1 - Remediation · Lot 4 - Integrated Nuclear Waste | - |
| Amentum Clean Energy Limited | 01120437 | ~£2,000,000,000 estimated from lot values | 1 lot Lot 1 - Remediation | - |
| NDS (Altrad Support Services Ltd, Cavendish Nuclear Ltd, Shepley Engineers Ltd) | - | ~£1,000,000,000 estimated from lot values | 1 lot Lot 3 - Retrievals Silos | - |
| TDA (AtkinsRéalis UK, Amentum Clean Energy, Westinghouse Electric Company UK) | - | ~£1,000,000,000 estimated from lot values | 1 lot Lot 2 - Retrievals Ponds | - |
This procurement was divided into 4 lots, each awarded separately. 15 bids were received in total.
| Lot | Value | Bids Received | Awarded To | Status |
|---|---|---|---|---|
| Lot 1 Lot 1 - Remediation Nov 2025 – Nov 2040 | £2,000,000,000 £2,600,000,000 initial term | 5 | Amentum Clean Energy Limited A2R (Altrad Support Services Limited and AtkinsRéalis UK Limited) | active |
| Lot 2 Lot 2 - Retrievals Ponds Oct 2025 – Nov 2040 | £1,000,000,000 | 1 single bid — no competition | TDA (AtkinsRéalis UK, Amentum Clean Energy, Westinghouse Electric Company UK) | active |
| Lot 3 Lot 3 - Retrievals Silos Oct 2025 – Nov 2040 | £1,000,000,000 | 1 single bid — no competition | NDS (Altrad Support Services Ltd, Cavendish Nuclear Ltd, Shepley Engineers Ltd) | active |
| Lot 4 Lot 4 - Integrated Nuclear Waste Oct 2025 – Nov 2040 | £600,000,000 £1,600,000,000 initial term | 3 | A2R (Altrad Support Services Limited and AtkinsRéalis UK Limited) | active |
Weightings from the notice, applied to every lot.
Government spending data: These suppliers have received £14,868,233 in 126 payments (over £25k) from Ministry of Defence, BEIS, DEFRA (2016-09-30 to 2026-03-24).
Changes the buyer published to this notice after it first appeared.
Published by the buyer on this notice. Check the original notice — details change and are not updated here.