Buyer profile
UK Atomic Energy Authority
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Total contracts
351
Known spend
£176m
223 disclosed
Average value
£789,765
Per contract
Active suppliers
10
Last 5 years
Top suppliers
Last 5 years- 1
AMENTUM CLEAN ENERGY LIMITED
£26m
- 2
RCD Lockinge Ltd
3 winslatest 18 Sept 2026£1m
- 3
Boxxe Ltd
3 winslatest 30 Sept 2026£995,531
- 4
FRAZER-NASH CONSULTANCY LIMITED
£9m
- 5
AtkinsRéalis UK Ltd
2 winslatest 02 Sept 2025£8m
- 6
Cyclife UK Ltd
2 winslatest 18 Dec 2025£8m
- 7
RED ENGINEERING LIMITED
£8m
- 8
AS Scientific products Ltd
2 winslatest 05 Feb 2026£1m
- 9
OPTIMUM ELECTRICAL ENGINEERING LTD
2 winslatest 02 Jun 2026£1m
- 10
Arcadis Consulting (UK) Limited
2 winslatest 26 Jun 2026£900,000
What they buy
By CPV categoryIndustrial machineryCPV 42
26 contracts · £347,500
Electrical equipmentCPV 31
18 contracts · £4m
Lab & precision equipmentCPV 38
18 contracts · £755,001
Construction worksCPV 45
14 contracts · £7m
Business servicesCPV 79
11 contracts · £32m
IT servicesCPV 72
11 contracts · £1m
Architectural & engineeringCPV 71
9 contracts · £285,000
Sewage, refuse & cleaningCPV 90
7 contracts · £60,001
Tender activity
Notices published per month — last 24 months
All contracts (351)
Radiation safety diagnostics
The delivery of Radiation Safety Diagnostics equipment to Culham Campus to enable the fulfilment of the Lithium Breeding Tritium Innovation (LIBRTI) programme.
AGHS refactor size reduction
UKAEA request information on products, including ROM costs, that could provide containment for operations involving size reduction of tritiated stainless steel waste (ILW and poten
Librti C&I – distributed control system [DCS]
The purpose of this procurement requirement is to purchase a set of specified items that need to be delivered to the Culham Campus. Some examples of the items we require include pr
Repurposing of 400/36kV substation & 36kV switchgear
The Authority wishes to commission an organisation to deliver a work package to provide a repurposed and refurbished 400/36kV private network that is sufficient for current and fut
Tritium safety diagnostics for the librti project
The Lithium Breeding Tritium Innovation (LIBRTI) Programme seeks to create a world leading UK capability for demonstrating the feasibility of powerplant relevant fusion fuel techno
Liquid scintillation counter procurement for erato/thalia and librti project
A. Lot 1- THALIA Project The THALIA Project serves as the parent initiative with the primary goal of testing and validating analytical work-up methods and instrumentation for triti
DEMO RMTF - TR0+ upgrade realisation
This procurement is to support UKAEA to develop test facilities in order to advance their understanding of novel control systems inside of a future fusion reactor known as DEMO. Th
MRP stand, MRP lifting equipment & MRP test piece - NEC4 supply of goods
Supply and delivery of mechanical components for a MRP Stand MRP Lifting Equipment & MRP Test Piece under NEC4 Supply Contract. Delivery to Sweden (DDP Incoterms 2020). Estimated v
Fluoride salt loop
UKAEA aims to procure a molten salt flow loop with the ability to heat, pump and remove samples of test material and molten fluoride salt. The purchase of commercially developed eq
Calliope
CALLIOPE is a specific work package related to preparation and tritium accountancy of samples for the THALIA project. As a part of CALLIOPE, it is required to develop and verify a
Turbomolecular pumps
Supply of 2 off new Turbomolecular pumps and accessories to install to the Calorimeter Tanks of the MAST-U Beamlines.
National instruments enterprise agreement
National Instruments (NI) provides software and hardware that is extensively used across UKAEA projects. For much of our hardware—most notably the CompactRIO (cRIO)—NI software is
Mast-u P1 & pc coils
The Manufacture, Assembly, Testing, Quality Assurance, Provision of Documentation and Delivery of MAST-U P1 & Pc Coils for use in it's MAST-U Fusion experiment.
Raico academic research theme 2
The Academic Research theme will address research related issues raised by the RAICo Collaboration partners and develop ideas at a low Technical Readiness Level (TRL) to such a poi
Avalanche photodiode detectors (APD)
The UK Atomic Energy Authority has a requirement for Quantity 125 Avalanche Photodiode Detector (APD) to detect Thomson scattered light in the visible-IR region (750-1100nm). The A
Uncertainty quantification consultancy
The purpose of this work is to act as an independent reviewer for the uncertainty framework currently under development, which will include uncertainty in facility performance incl
Ukaea C8 refurbishment for ukifs on 1st & 2nd floor
The fit out of C8 is being designed by AtkinsRealis in liaison with both UKAEA and UKIFS for long-term tenanted occupation as part of the site-wide organisation of departmental pla
Supply of five (5) helium leak detectors
The scope of the contract includes the supply of five (5) Helium leak detectors for the Hydrogen 3 Advanced Technology (H3AT) facility at the UKAEA’s Culham Campus. The leak detect
DBB cryopump hoses
The supply of flexible hoses for incorporation into the cryopump assembly being manufactured and tested under an existing contract. The hoses will be welded into the assembly and t
D15 project feasibility study
The required works are for a feasibility study into an upgrade of the J52 power supplies, supplied and commissioned by JEMA, which will be repurposed for the MAST-U D15 project. Th