Nuclear reactors tenders and contracts

Search nuclear reactors notices across UK procurement portals. Filter by buyer, value and deadline, and set an alert for new opportunities.

52 results matching, nuclear reactors

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Awarded contractPublished 8 May 2026
Small Modular Reactor Technology Partner
Great British Nuclear ("GBN")Supplier(s) ROLLS-ROYCE SMR LIMITEDNuclear reactors and partsAwarded 10 April 2026
£359,000,000
Awarded contractPublished 3 November 2025
Decommissioning Nuclear Waste Partnership (DNWP)
Sellafield Limited
Supplier(s)
4 suppliers
A2R (Altrad Support Services Limited and AtkinsRéalis UK Limited)
Amentum Clean Energy Ltd
NDS (Altrad Support Services Ltd, Cavendish Nuclear Ltd, Shepley Engineers Ltd)
TDA (AtkinsRéalis UK, Amentum Clean Energy, Westinghouse Electric Company UK)
Business and management consultancy and related servicesAwarded 30 October 2025
£6,200,000,000
Awarded contractPublished 7 October 2025
Trawsfynydd Reactor Buildings Height Reduction
Nuclear Restoration Services LimitedSupplier(s) COSTAIN GROUP PLCHire of construction and civil engineering machinery and equipment with operatorAwarded 2 October 2025
£71,813,292
Closed tender, closed 18 April 2025Published 28 February 2025
Building 47 Refurbishment
NPL Management LtdConstruction work
£2,500,000
Stale Pre-tenderPublished 3 February 2025
HALEU Deconversion - Supplier Engagement Day
National Nuclear Laboratory LtdElectricity, heating, solar and nuclear energy
Value not stated
Awarded contract, expiring in 6 monthsPublished 14 May 2024
GBN EPRI Membership ANT Programme
Department for Energy Security & Net ZeroSupplier(s) Electric Power Research Institute, Inc.Research and development consultancy servicesAwarded 1 May 2024
£239,181
Awarded contractPublished 18 March 2024
Procurement of 2 ASTUTE Class Reactor Fresh Water-Cooling Heat Exchangers
Ministry of DefenceSupplier(s) Naval GroupAttack submarine nuclear fuelledAwarded 13 March 2024
£8,000,000
Expired contract, expired 3 June 2026Published 13 February 2024
Assessment of Nuclear Justification applications
Department for Environment, Food & Rural Affairs (DEFRA)Supplier(s) PA Consulting Services LtdGeneral management consultancy servicesAwarded 4 March 2024
£994,100
Stale Pre-tenderPublished 8 January 2024
Procurement of consultancy services in support of technology development of heat exchanger design
National Nuclear Laboratory LtdHeat-exchange units
Value not stated
Stale Pre-tenderPublished 1 August 2023
NNL Recruitment Services Framework
National Nuclear Laboratory LtdSupply services of office personnel
£1,000,000
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Closed tender, closed 9 October 2023Published 31 July 2023
Decommissioning Nuclear Waste Partnership (DNWP)
Sellafield LimitedDemolition, site preparation and clearance work
£4,600,000,000
Closed tender, closed 23 August 2023Published 18 July 2023
Small Modular Reactor Technology Partner
Great British Nuclear ("GBN")Nuclear safety services
£20,000,000,000
Expired contract, expired 30 September 2026Published 22 June 2023
Liquid Ion Chromatography Machine - CAN
Ministry of DefenceSupplier(s) Thermo fisher scientificChromatographsAwarded 11 May 2023
£43,914.07
Closed tender, closed 26 June 2023Published 27 May 2023
Trawsfynydd Reactor Buildings Height Reduction
Nuclear Restoration Services LimitedScaffolding work
£53,000,000
Stale Pre-tenderPublished 17 April 2023
Land Quality Services 2024+ PIN
Nuclear Restoration Services LimitedGroundwater pollution monitoring or control services
£20,000,000
Stale Pre-tenderPublished 17 April 2023
Land Quality Services
Nuclear Restoration Services LimitedGroundwater pollution monitoring or control services
£20,000,000
Closed tender, closed 1 May 2023Published 31 March 2023
Liquid Ion Chromatography Machine -706968454
Ministry of DefenceChromatographs
£44,000
Awarded contractPublished 3 May 2022
Contract for the Supply and Installation of an Aqueous Mechanical and Corrosion Testing Loop with in-situ Irradiation Capability to the University of Birmingham
University of BirminghamSupplier(s) Cormet OyResearch, testing and scientific technical simulatorAwarded 11 April 2022
£458,880.62
Stale Pre-tenderPublished 4 February 2022
Recruitment Service - Framework Agreement
National Nuclear Laboratory LtdSupply services of office personnel
£1,000,000
Closed tender, closed 12 January 2022Published 13 December 2021
Contract for the Supply and Installation of an Aqueous Mechanical and Corrosion Testing Loop with in-situ Irradiation Capability to the University of Birmingham
University of BirminghamResearch, testing and scientific technical simulator
£500,000

Top buyers

The buyers publishing the most nuclear reactors notices, and what those contracts are worth.

View all buyers

BuyersCountValue

Department for Business Energy and Industrial Strategy (BEIS)
13
£40.8m
UK Atomic Energy Authority
7
£58.7m
National Nuclear Laboratory Ltd
6
£2.0m
Nuclear Restoration Services Limited
4
£164.8m
University of Birmingham
3
£1.5m
Department of Energy and Climate Change
3
£1.5m
Ministry of Defence
3
£8.1m
Sellafield Limited
2
£10.8bn
Department For Work and Pensions (DWP)
2
£225.1k
Great British Nuclear ("GBN")
2
£20.4bn

Trend over time

Notice volume for nuclear reactors searches published over time.

Top suppliers

Suppliers who have won the most nuclear reactors contracts, and what those awards were worth.

View all suppliers

SuppliersCountValue

Frazer-Nash Consultancy Limited
5
£14.3m
Amec Foster Wheeler Environment and Infrastructure UK Limited Company
3
£7.0m
OVE ARUP & PARTNERS LIMITED
2
£70.0k
The Nuclear AMRC (University of Sheffield)
2
£70.0k
Ernst & Young LLP (EY)
2
£1.5m
Office for Nuclear Regulation (ONR)
2
£10.0m
Naval Group
1
£8.0m
ROLLS-ROYCE SMR LIMITED
1
£359.0m
Amentum Clean Energy Ltd
1
£1.6bn
Thermo fisher scientific
1
£43.9k

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