System operational · UK tenders

Buyer profile

UK Atomic Energy Authority

otherNorth WestenglandGB

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Total contracts

351

Known spend

£176m

223 disclosed

Average value

£789,765

Per contract

Active suppliers

10

Last 5 years

Open16Awarded140Closed125

Top suppliers

Last 5 years
  1. 1

    AMENTUM CLEAN ENERGY LIMITED

    3 winslatest 27 Mar 2026CH 01120437

    £26m

  2. 2

    RCD Lockinge Ltd

    3 winslatest 18 Sept 2026

    £1m

  3. 3

    Boxxe Ltd

    3 winslatest 30 Sept 2026

    £995,531

  4. 4

    FRAZER-NASH CONSULTANCY LIMITED

    2 winslatest 21 Oct 2025CH 02562870

    £9m

  5. 5

    AtkinsRéalis UK Ltd

    2 winslatest 02 Sept 2025

    £8m

  6. 6

    Cyclife UK Ltd

    2 winslatest 18 Dec 2025

    £8m

  7. 7

    RED ENGINEERING LIMITED

    2 winslatest 28 Jul 2026CH 06651202

    £8m

  8. 8

    AS Scientific products Ltd

    2 winslatest 05 Feb 2026

    £1m

  9. 9

    OPTIMUM ELECTRICAL ENGINEERING LTD

    2 winslatest 02 Jun 2026

    £1m

  10. 10

    Arcadis Consulting (UK) Limited

    2 winslatest 26 Jun 2026

    £900,000

What they buy

By CPV category
  • Industrial 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

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All contracts (351)

U
ocds-h6vhtk-060048 · tender

Radiation safety diagnostics

UK Atomic Energy Authority
South East

The delivery of Radiation Safety Diagnostics equipment to Culham Campus to enable the fulfilment of the Lithium Breeding Tritium Innovation (LIBRTI) programme.

£Up to £178,000
⏱ 2 Feb 2026
Posted · 9mo agoView details →
U
ocds-h6vhtk-060011 · planning

AGHS refactor size reduction

UK Atomic Energy Authority
South East

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

£On request
Posted · 9mo agoView details →
U
ocds-h6vhtk-05d392 · award

Librti C&I – distributed control system [DCS]

UK Atomic Energy Authority
South East

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

£Up to £518,173
⏱ 18 Nov 2025
Posted · 9mo agoView details →
U
ocds-h6vhtk-05fc82 · planning

Repurposing of 400/36kV substation & 36kV switchgear

UK Atomic Energy Authority
South East

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

£Up to £500,000
Posted · 9mo agoView details →
U
ocds-h6vhtk-05fbca · tender

Tritium safety diagnostics for the librti project

UK Atomic Energy Authority
South East

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

£Up to £200,000
⏱ 19 Jan 2026
Posted · 9mo agoView details →
U
ocds-h6vhtk-05d2cc · award

Liquid scintillation counter procurement for erato/thalia and librti project

UK Atomic Energy Authority
South East

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

£Up to £708,620
⏱ 19 Nov 2025
Posted · 9mo agoView details →
U
ocds-h6vhtk-056285 · award

DEMO RMTF - TR0+ upgrade realisation

UK Atomic Energy Authority
South East

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

£Up to £400,000
⏱ 13 Aug 2025
Posted · 9mo agoView details →
U
ocds-h6vhtk-054726 · award

MRP stand, MRP lifting equipment & MRP test piece - NEC4 supply of goods

UK Atomic Energy Authority
South East

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

£Up to £148,750
⏱ 2 Jul 2025
Posted · 9mo agoView details →
U
ocds-h6vhtk-05f89e · planning

Fluoride salt loop

UK Atomic Energy Authority
South East

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

£Up to £416,670
Posted · 9mo agoView details →
U
ocds-h6vhtk-05f677 · planning

Calliope

UK Atomic Energy Authority
South East

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

£Up to £70,000
Posted · 9mo agoView details →
U
ocds-h6vhtk-05f480 · award

Turbomolecular pumps

UK Atomic Energy Authority
South East

Supply of 2 off new Turbomolecular pumps and accessories to install to the Calorimeter Tanks of the MAST-U Beamlines.

£Up to £26,817
Posted · 10mo agoView details →
U
ocds-h6vhtk-05f395 · award

National instruments enterprise agreement

UK Atomic Energy Authority
South East

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

£Up to £412,977
Posted · 10mo agoView details →
U
ocds-h6vhtk-052a20 · award

Mast-u P1 & pc coils

UK Atomic Energy Authority
South East

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.

£Up to £872,464
⏱ 16 Oct 2025
Posted · 10mo agoView details →
U
ocds-h6vhtk-05f05f · award

Raico academic research theme 2

UK Atomic Energy Authority
South East

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

£Up to £900,000
Posted · 10mo agoView details →
U
ocds-h6vhtk-05f00e · award

Avalanche photodiode detectors (APD)

UK Atomic Energy Authority
South East

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

£Up to US$84,785
Posted · 10mo agoView details →
U
ocds-h6vhtk-05edab · planning

Uncertainty quantification consultancy

UK Atomic Energy Authority
South East

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

£On request
Posted · 10mo agoView details →
U
ocds-h6vhtk-05e886 · award

Ukaea C8 refurbishment for ukifs on 1st & 2nd floor

UK Atomic Energy Authority
South East

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

£Up to £1,800,000
Posted · 10mo agoView details →
U
ocds-h6vhtk-058c02 · award

Supply of five (5) helium leak detectors

UK Atomic Energy Authority
South East

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

£Up to £130,714
⏱ 6 Oct 2025
Posted · 10mo agoView details →
U
ocds-h6vhtk-05d0e3 · award

DBB cryopump hoses

UK Atomic Energy Authority
South East

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

£Up to £209,780
Posted · 10mo agoView details →
U
ocds-h6vhtk-05e49d · award

D15 project feasibility study

UK Atomic Energy Authority
South East

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

£Up to £40,000
Posted · 10mo agoView details →