UK Atomic Energy Authority: Contract Register & Procurement Profile

GOV.UK register: Executive non-departmental public bodyOther public bodySouth East EnglandOxfordshire

Official UK PPONPLJV-1169-JTDDWebsitegov.uk ↗

Open now7next deadline 16 Nov 2026

Notices, last 12 months130+38% vs prior 12 months (94)

Typical bids per lot323.1% single-bid · median of 39 lots

Based on 39 lots from this buyer’s competitions, last 24 months.

Top-3 supplier share6%of 189 awarded procedures · 237 suppliers

189 awarded tenders, 237 different suppliers.

Contracts ending ≤18 months5024 within 6 months

Published award value, 24m£64mnet · on 106 of 109 published values · 3 repeated amounts set aside · top 5 = 52%

Open notices

7 live · deadline in the future or not published · as of page build

Notice	Deadline	Days left	Published value
For the provision of THOR Electrical Power Distribution Equipment	16 Nov 2026	36h	£50,000
Vacuum Pump Tritium Testing	16 Nov 2026	36h	£400,000
Framework for CNC Machines and Related ServicesFramework	30 Nov 2026	15d	£1,500,000
Radiological Dosimetry Service	11 Dec 2026	26d	£1,427,500
HVPS Transformer Relocation	17 Dec 2026	32d	£300,000
Exhaust Detritiation System	18 Feb 2027	95d	£3,000,000

All 7 open notices for this authority →

What they buy
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Last 24 months · CPV divisions on published procedures · a notice with several divisions counts in each

72 IT services: consulting, software, internet45 procedures · 20%

42 Industrial machinery42 procedures · 19% · 3 open

71 Architectural, construction, engineering42 procedures · 19% · 3 open

38 Laboratory, optical and precision37 procedures · 17% · 2 open

45 Construction work34 procedures · 15% · 1 open

48 Software package and information systems33 procedures · 15%

31 Electrical machinery27 procedures · 12% · 2 open

73 Research and development services27 procedures · 12%

How they buy
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Last 24 months · 224 notices · commercial tool and route as published on the notice, not a legal-regime claim

Commercial tool

Contract96%(216 notices)
216 of 224 notices are Contract (96%).
Framework4%(8 notices)
8 of 224 notices are Framework (4%).

Procedure route

Open33%(74 notices)
74 of 224 notices are Open (33%).
Route not published32%(71 notices)
71 of 224 notices are Route not published (32%).
Direct award31%(70 notices)
70 of 224 notices are Direct award (31%).
Limited / restricted2%(5 notices)
5 of 224 notices are Limited / restricted (2%).
Selective2%(4 notices)
4 of 224 notices are Selective (2%).

Typical bids per lot

Based on 39 lots from this buyer’s competitions, last 24 months.

3robust · n=3923.1% of lots drew a single bid

Deadline → award

Based on 36 decided tenders across all categories, last 24 months.

27 daysrobust · n=36

Notice amendments

Based on 222 notices across all categories, last 24 months.

061 of 222 notices amended

Award vs estimate

Based on 25 lots with both an estimate and an award, last 24 months.

0.4% below estimaterobust · n=25

Who wins here
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All published awards naming a supplier · ranked by distinct procedures, not pounds · panel and call-off entries inflate award records

Supplier	Procedures	Share	Last 24m	Award records	Last activity
Oxford Sigmaframework/DPS on 2	4	2.1%	4	6	29 Sept 2025
boxxe Limited	4	2.1%	4	5	12 Oct 2026
Softcat Plc	4	2.1%	4	4	4 Mar 2026
Toia Ltd	4	2.1%	4	4	23 Oct 2026
RARUK Automation Ltd	4	2.1%	4	4	21 Jul 2026
Amentum Clean Energy Ltdframework/DPS on 2	3	1.6%	3	6	15 Jan 2026
Atkins Limitedframework/DPS on 3	3	1.6%	3	6	15 Jan 2026
RCD Lockinge Ltd	3	1.6%	3	5	18 Sept 2026

The three most frequent suppliers are named on 6% of 189 awarded procedures (each procedure counted once, so a panel shared by several of them is not double-counted); 237 distinct suppliers hold at least one. Descriptive concentration of published awards, not a statement of preference.

Published award value (24m)

£64mSum of published VAT-exclusive values on 106 of 109 published single-supplier values; the five largest make 52%; a further 2 published a VAT-inclusive amount only, kept apart.

Typical single-supplier award (24m)

£130k middle valuerobust · n=106Middle half £42k–£400k; 3 awards with ambiguous equal values within a procedure excluded from both figures.

Largest published awards i	Supplier	Awarded	Term	Published value
H3AT Isotope Separation System (ISS) Gloveboxes	Kinectrics Inc	—	5 yrs	£8,250,000 ≈ £1.6m/yr
Power Costs - Hosting	Equinix Inc	—	3 yrs	£8,100,000 † ≈ £2.7m/yr
Specialist Scaffolding, Rigging Services and Low Level Waste	Altrad Support Services Limited	15 Jan 2026	1.5 yrs	£7,437,500 ≈ £5.0m/yr
NFC190 Provision of Microsoft Licenses and related services	Ultima Business Solutions Ltd	—	—	£6,000,000 †
MAST-U Pc, P4 and P5 Coil Power Supplies	Jema Energy	8 Oct 2025	2.1 yrs	£3,494,292 ≈ £1.7m/yr

Contracts ending
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165 of 174 contracts carry an end date, 6 estimated from the duration · not a retender forecast

Contract	Holder	Ends	Published value
Unit4 ERP Vision Managed Service	VISION ERP LIMITED	27 Nov 2026	£35,000
the supply of new compressed air treatment equipment	Compressors and Pneumatic Systems Ltd	25 Dec 2026	£61,073
HVPS D15 Cooling System	Cool-Therm (UK) Limited	31 Dec 2026	£104,453
Supply & Installation of Water Cooling System Components for a relocated Vacuum Furnace	BUSCH (UK) LIMITED	31 Jan 2027	£188,150
Supply of Nd: YAG Lasers	PHOTONIC SOLUTIONS LIMITED	31 Jan 2027	£205,970
Software Licenses - Document Management	Ultima Business Solutions Limited	27 Feb 2027	£120,000
HVPS Electrical Installation	THE OXFORD MECHANICAL & ELECTRICAL COMPANY LTD	28 Feb 2027	£190,000
Monday.com Licenses	Softcat Plc	12 Mar 2027	£65,000
Industry Simulation Software for Fusion	ANSYS UK Ltd	19 Mar 2027	£81,500
Industry Simulation Software for Fusion	IDOM (UK) LTD	19 Mar 2027	£35,000

Soonest 10 of 50 contracts ending within 18 months.

Recent procedures

Latest 50 of 222 procedures where this authority buys, is the authority the work is for, or runs the procurement

Procedure	Status	Published	Published value
HVPS CablingLow-voltage cable	Awarded / complete	12 Nov 2026	£250,000
HV Cable ProcurementConnection cables	Awarded / complete	11 Nov 2026	£207,000
Compensation Scheme Support Services	Awarded / complete	11 Nov 2026	—
Internal Management System Auditing ServicesAuditing services	Awarded / complete	10 Nov 2026	£97,500
LiBRTI DiagnosticsApparatus for measuring radiation	Awarded / complete	10 Nov 2026	£500,000
Fibre Optic Bundles for MAST-UDiagnostic devices	Awarded / complete	9 Nov 2026	£120,000
for the completion of the Integrated Control & Safety System (ICSS) for the H3AT Tritium Facility at Culham	Awarded / complete	4 Nov 2026	—
AI assisted engineering support for LIBRTI (Lithium Breeding Tritium Innovation): final facility design, systems integration, commissioning strategy and complianceEngineering design services	Planning	4 Nov 2026	£0
Design and Development of the Optically Accessible Boiling Experiment	Awarded / complete	4 Nov 2026	—
AIP Subscription	Awarded / complete	3 Nov 2026	—
Read and publish agreement with Elsevier	Awarded / complete	3 Nov 2026	—
the supply of new compressed air treatment equipment	Awarded / complete	3 Nov 2026	—
Design of H3AT Control RoomDesign consultancy services	Planning	30 Oct 2026	£65,000
T-119CM-26 Shield Integrity Testing Services - MRF Hot cellsTechnical testing services	Open	30 Oct 2026	£60,000
Safety Case Support ServicesTechnical analysis or consultancy services	Awarded / complete	27 Oct 2026	£400,000
Linux Backup	Awarded / complete	27 Oct 2026	—
Patent and Trade Mark Attorney Services and IP Search and Landscaping ServicesFrameworkLegal advisory and information services	Planned	27 Oct 2026	£3,340,000
D8 Roof ReplacementFramework5 lotsRoof maintenance work	Awarded / complete	23 Oct 2026	£165,000,000
Unified Training Simulators	Awarded / complete	23 Oct 2026	—
Hazard Management ToolCompliance software development services	Open	20 Oct 2026	£50,000

Search all 222 procedures for this authority →

Contracts Finder adds 76 more procedures by this authority, mostly below the Find a Tender threshold or from before 2025. Each is counted once beside any Find a Tender copy; they are in the totals, not in this list or in search.

About this data

One profile per authority. Different spellings and registration numbers of the same body are merged into this profile. It includes tenders the authority ran for other bodies and tenders run on its behalf; spend is credited to the body that pays.
Values are published values. Award values are what the authority published, excluding VAT and framework ceilings. They are not a budget or total spend.
Contract end dates. 165 of 174 published contracts have an end date; 6 of those are estimated as the signature (or publication) date plus the published duration and are marked “estimated”. They feed “Contracts ending”, the same rule as the retender radar. Published values in that list come from either source; Contracts Finder figures are shown as published and stay out of this profile’s money totals.
Source. Official UK public procurement notices (Find a Tender and Contracts Finder), reused under the Open Government Licence v3.0, updated through the day and rebuilt nightly. Not every figure uses both feeds, and each one shows how many records it rests on: see the methodology. Spotted something wrong? Tell us.