Public buyer · Nuclear

Sellafield Limited

Sellafield Limited has awarded 272 UK public contracts worth £18.2bn since 17 Jul 2023. Suppliers include AtkinsAltrad, Amentum Clean Energy Ltd.

North West Official websiteFirst contract 17 Jul 2023Latest contract 28 Oct 2026

Contracts: 272
Published value: £18.2bnwhere stated
Without competition: 18%50 contracts
Won by SMEs: 26%of 104 with size known

Contracts awarded per month, last 24 months 257 contracts · busiest month December 2025

025

Dec 24
Mar 25
Jun 25
Sep 25
22Dec 25
Mar 26
Jun 26
Sep 26

Suppliers used most

AtkinsAltrad 39 contracts · £68.4m
Amentum Clean Energy Ltd 16 contracts · £5.63bn
British Telecommunications Public Limited Company t/a BT PLC 13 contracts · £5.79m
CDW Limited 12 contracts · £4.11m
The Decommissioning Alliance II 10 contracts · £14.9m
The NEXUS Decommissioning Alliance 9 contracts · £8.28m
Adapt 7 contracts · £8.95m
A2R 7 contracts · £5.77m
boxxe Limited 5 contracts · £2.84m
Morgan Sindall Construction & Infrastructure Ltd 4 contracts · £4.27bn

What they buy

Community & personal services 52 contracts · £81m
IT services 36 contracts · £41m
Construction work 27 contracts · £16.7bn
Architecture & engineering 26 contracts · £335m
Software & information systems 23 contracts · £82.3m
Business services 21 contracts · £125m
Waste, cleaning & environmental 12 contracts · £35.7m
Construction materials 12 contracts · £235m

All contracts awarded by Sellafield Limited

Contracts awarded by Sellafield Limited
Date	Contract	Supplier	Value
28 Oct 2026	DNWP0081/Lot1B/ID Preparations Phase A	AtkinsAltrad	£1.82m
23 Oct 2026	DNWP0028/LOT1B/ Alpha SAS Trialling / Commission / Active Learning	AtkinsAltrad	£5.47m
23 Oct 2026	DNWP0028/LOT1B/ Alpha SAS Trialling / Commission / Active Learning	AtkinsAltrad	£5.43m
19 Oct 2026	DNWP0025/LOT4/Waste OU - CLESA CAMP/Cap	AtkinsAltrad	£166k
19 Oct 2026	DNWP0066/LOT1B/ Technical Innovation	AtkinsAltrad	£398k
15 Oct 2026	DNWP0025/LOT1B/ R1S Blower House De-planting	AtkinsAltrad	£4.55m
13 Oct 2026	DNWP0006/LOT1B/ PILE 1 SPIDA Installation & Commissioning	AtkinsAltrad	£8.14m
12 Oct 2026	DPS 041 - RER Maintenance Rationalisation, PUWER Assessments and CCRs	Cumbria O and M Services Ltd SME	£3.28m
12 Oct 2026	DPS 041 - RER Maintenance Rationalisation PUWER Assessments and CCRs	Cumbria O and M Services Ltd SME	£3.18m
8 Oct 2026	DNWP0037/LOT1B/ END STATES In Ground Mitigation / Tranche 4b remaining works	AtkinsAltrad	£1.96m
25 Sep 2026	DPS 038 - E&M Asset Assessment for MEP & WEP	Cumbria O and M Services Ltd SME	£3.18m
24 Sep 2026	FY26/27 Building Histories & Facility Dossiers No competition	React Engineering Limited	£206k
23 Sep 2026	Equal Pay Review No competition	Deloitte LLP	£107k
17 Sep 2026	DNWP0022/LOT1B/ RAHF M3 waste removal, M3, M2 & U2 drain lines & M2 dismantling	AtkinsAltrad	£5.56m
17 Sep 2026	DNWP0033/LOT1B/ ID - In Sep - August 2026 to March 2027	AtkinsAltrad	£3.02m
15 Sep 2026	DNWP0029/Lot 4/Long-Term Metals Treatment Capability	AtkinsAltrad	£88,853
14 Sep 2026	DNWP0071/LOT1A/CALDER Ring Fence	Amentum Clean Energy Ltd	£479k
9 Sep 2026	DNWP0040/LOT1A/ HEx-1 Laydown area excavation and pour	Amentum Clean Energy Ltd	£3.43m
8 Sep 2026	DNWP0039/LOT1A/Management Team FY26/27	Amentum Clean Energy Ltd	£4.08m
4 Sep 2026	DNWP0032/LOT1B/ Lot 1B - Management (Core Team) FY 26/27	AtkinsAltrad	£3.15m
25 Aug 2026	Condition Monitoring	Uie SME	£1.73m
24 Aug 2026	Pagabo Major Works Framework - SIXEP/FHP Main Roof Refurbishment Project	Morgan Sindall Construction & Infrastructure Ltd	—
24 Aug 2026	SIXEP/FHP Main Roof Refurbishment Project	Morgan Sindall Construction & Infrastructure Ltd	£35m
24 Aug 2026	Condition Monitoring	Uie SME	—
21 Aug 2026	DNWP0019/LOT1B/ WAGR / PIE ILW - Detailed Design	AtkinsAltrad	£2.47m
14 Aug 2026	Enterprise Asset Management Delivery No competition	PA Consulting Services Limited	£112k
7 Aug 2026	DNWP0074/LOT1B/MASFE wash out	AtkinsAltrad	£111k
5 Aug 2026	DNWP0003/LOT4/Waste OU - SSRF Improvements	AtkinsAltrad	£734k
23 Jul 2026	DNWP0016/LOT1B/ Windscale Decommissioning and Enabling Works	AtkinsAltrad	£4.44m
22 Jul 2026	Contractor Compliance Auditing 2026-2028	Baker Mallett LLP	£310k
17 Jul 2026	DNWP0070/LOT1B/ SEMAS Optioneering Study	AtkinsAltrad	£338k
15 Jul 2026	DNWP0038/LOT1B/ PILE 1 Early Fuel Retrievals - Installation & Operations	AtkinsAltrad	£1.67m
8 Jul 2026	Analysis of Very Low Active and Environmental Samples	Cavendish Nuclear	£91.2m
8 Jul 2026	Analysis of Very Low Active and Environmental Samples	Cavendish Nuclear	£113m
8 Jul 2026	Analysis of Very Low Active and Environmental Samples	Cavendish Nuclear	£113m
1 Jul 2026	Employee Training Content Subscription	Talenteam SME	£548k
26 Jun 2026	DNWP0023/LOT1B/ PILE 1 Care & Maintenance FY26/27	AtkinsAltrad	£2.37m
24 Jun 2026	DNWP0023/LOT4/Waste OU - RCT Redundant Facilities Baseline	AtkinsAltrad	£221k
23 Jun 2026	DNWP0061/LOT1A/CALDER R1 & R2 Filter Room Full Deplant	Amentum Clean Energy Ltd	£185k
17 Jun 2026	DNWP0027/LOT4/Waste OU - FGMSP Skips Trial - Active	AtkinsAltrad	£3.18m
10 Jun 2026	DNWP0015/LOT2/Project Clipper	The Decommissioning Alliance	£5.73m
10 Jun 2026	Cisco Identity Services Engine & Apex Any Connect	Computacenter (UK) Ltd	£99,400
5 Jun 2026	DNWP0024/LOT1B/ RAHF North Engineering Support	AtkinsAltrad	£875k
4 Jun 2026	Cisco Firepower Threat Defence Licences	British Telecommunications Public Limited Company t/a BT PLC	£160k
1 Jun 2026	Environmental & Conventional Health & Safety Services: Dangerous Substances & Explosive Atmospheres (DSEAR) Assessment and Chemical Ide	Bureau Veritas	£670k
1 Jun 2026	Environmental & Conventional Health & Safety Services: Carbon Management and Environmental Sustainability	Jacobs U.K. Limited	£1.4m
1 Jun 2026	Environmental & Conventional Health & Safety Services: Environmental Assessment, Development and application of modelling codes and num	Amentum Clean Energy Ltd	£4.5m
1 Jun 2026	Environmental & Conventional Health & Safety Services: Monitoring and Characterisation	Amentum Clean Energy Ltd	£4.5m
1 Jun 2026	Environmental & Conventional Health & Safety Services: Regulatory Compliance & Improvement	WSP UK Ltd Main	£2m
1 Jun 2026	Environmental & Conventional Health & Safety Services: Occupational Hygiene	Health Partners	£1.35m