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UKN

UK GOVERNMENT PROCUREMENT

Public-sector buyer · United Kingdom

UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED

UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED is a UK public-sector contracting authority. This profile aggregates its public-record procurement — top suppliers, categories, recent awards, open tenders and expiring contracts.

Data period: 2023-08-01 to 2026-08-01Updated 2026-08-01

£6.9M

Total spend

54

Contract awards

49

Unique suppliers

£147K

Avg contract

According to ENKII, UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED has awarded 54 contracts worth £6.9M to 49 suppliers between 2023-08-01 and 2026-08-01, at an average contract value of £147K, with the top five suppliers holding 42% of contract value.

Top suppliers

Top suppliers to UNITED KINGDOM NATIONAL NUCLEAR LABORATO…

Top-five suppliers hold 42% of contract value — a concentrated market.

SupplierAwardsTotal value
SIEMENS INDUSTRY SOFTWARE LIMITED1£975K
Elsevier B.V.1£647K
Misco Technologies Limited1£570K
North West Projects Ltd T/a Actemium Design UK2£390K
UNIVERSITY OF BIRMINGHAM1£300K
Crimson Industrial Vision Ltd2£254K
Gartner UK Ltd1£238K
JEOL (UK) Ltd1£234K
SHEPLEY ENGINEERS LIMITED1£204K
Phoenix Software Ltd1£203K
Minerva Health Physics Ltd1£200K
Special Situations Group Limited1£175K
STANTEC UK LIMITED1£172K
Nuclear Industry Association1£170K
PERKINELMER AES (UK) LIMITED1£169K
MIRION TECHNOLOGIES (IST) LIMITED1£163K
University of Lancaster1£153K
Tannahill Reay Visual Communications Limited1£150K
FEI UK LIMITED2£127K
CUSTOM CAMERAS LIMITED1£118K

Procurement categories

What UNITED KINGDOM NATIONAL NUCLEAR LABORATO… buys

Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.

Analytical, scientific, mathematical or forecasting software package

48460000
1 award£975K

Newspapers

22210000
1 award£647K

Mobile telephones

32250000
1 award£570K

Business and management consultancy services

79410000
2 awards£370K

Microscopes

38510000
3 awards£362K

Research services

73110000
2 awards£331K

Programming services of packaged software products

72210000
1 award£300K

Photographic equipment

38650000
2 awards£250K

Boiler installations

42160000
2 awards£204K

Drawing and imaging software package

48320000
1 award£203K

Environmental protection

90720000
1 award£200K

Specialty design services

79930000
1 award£195K

Machines and apparatus for testing and measuring

38540000
3 awards£191K

Systems and technical consultancy services

72220000
1 award£172K

Services furnished by business, professional and specialist organisations

98110000
1 award£170K

Repair and maintenance services of measuring, testing and checking apparatus

50410000
1 award£169K

Non-medical equipment based on the use of radiations

38580000
1 award£168K

Building construction work

45210000
1 award£153K

Road equipment

34920000
1 award£150K

Consultative engineering and construction services

71310000
4 awards£142K

Recent contracts

Latest UNITED KINGDOM NATIONAL NUCLEAR LABORATO… contracts awarded

The most recently published award notices on Find a Tender and Contracts Finder.

Lot 1 - Health Physics and Radiological Protection Advisor

AMENTUM CLEAN ENERGY LIMITED · 2026-07-30

Journal Access

Elsevier B.V. · 2026-07-29

£647K

Provision of Land Quality & End Estates Technical Support Services.

GEOSYNTEC CONSULTANTS LTD · 2026-05-20

£48K

Supply of Compressive Strength Machine

CONTROLS TESTING EQUIPMENT LIMITED · 2026-05-20

£35K

Provision of Land Quality & End Estates Technical Support Services.

GROUNDH2O PLUS LIMITED · 2026-05-19

£39K

Encryption HSM & Key Control upgrade

INTEGRITY360 LIMITED · 2026-05-15

Site Works

Shepleys Engineers Limited · 2026-05-12

£1.0M

Mobile Phone Replacements

Misco Technologies Limited · 2026-04-23

£570K

In-Situ Nano-Mechanical Stage Device

Alemnis AG · 2026-04-23

£100K

Edenred Employee Benefits - Cycle to Work Scheme

Reward Gateway (UK) Ltd T/A Edenred · 2026-04-10

£75K

Supply of Powder Flow Rheometer

MICROMERITICS LIMITED · 2026-04-08

£79K

Testing for Brick Scabbling equipment

BARRNON LTD · 2026-04-02

£46K

Supply of NOx Gas Analyser

ABB LIMITED · 2026-03-27

£83K

Ru volatilisation PDRA

University of Lancaster · 2026-03-26

£153K

Defining Period

North West Projects Ltd T/a Actemium Design UK · 2026-03-26

£195K

Defining Period

North West Projects Ltd T/a Actemium Design UK · 2026-03-26

£195K

Post Doctoral Research Agreement surrounding viable technologies for on-line monitoring for deconversion.

University of Strathclyde · 2026-03-25

£93K

Strategic Design Partner to Support Deconversion - Framework Agreement

North West Projects Ltd T/a Actemium Design UK · 2026-03-25

£3.5M

Replacement Endoscopic Inspection Cameras

CUSTOM CAMERAS LIMITED · 2026-03-24

£118K

Manufacture, Supply & Installation of Pipework System

SHEPLEY ENGINEERS LIMITED · 2026-03-03

£204K

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Open opportunities

Open UNITED KINGDOM NATIONAL NUCLEAR LABORATO… tenders

Tenders currently inviting bids. SMEs can respond via the official tender portal.

Managed Security Operations Centre (SOC) and Incident Response Services Agreement

Deadline: 2026-08-17

£2.5M

Supply of a Kneader

£150K

Procurement of Endoscope Cameras for UKNNL plant inspections

Construction and commission of modular rig

Fourier Transform Infrared (FTIR) Spectroscopy System

Intumescent paint of steel work, and fire retardancy

Training in Negotiation Skills

£200K

Modelling of Critical Nuclear Facilities

£400K

Open-Source Information Provider

£1.5M

Laundry and Respiratory Protective Equipment (RPE)

Waste Services

AB Rig (Remote Operated Equipment)

HALEU Deconversion Capability Research and Development Support 2025-2030

£9.0M

Supply of Wireless Instrumentation and Control Systems

£55K

FORTRAN Programmer Support

Managed Security Operations Centre (SOC) and Incident Response Services Agreement

Health Physics Monitor (s)

Supply of Leica DMi 5000 Microscope (for spare parts)

£25K

Pipeline

Contracts expiring in the next 12 months

When these contracts end, UNITED KINGDOM NATIONAL NUCLEAR LABORATO… typically re-tenders. SMEs preparing bids 3-6 months ahead win disproportionately often.

Ansys Software Package

Expires: 2026-12-14

£203K

University R&D services for EIRT cement analytical work

Expires: 2027-02-09

£59K

Servicing and Maintenance of Ametek Ortec Equipment

Expires: 2027-02-19

Servicing and Maintenance of Ametek Ortec Equipment

Expires: 2027-02-19

Post Doctoral Research Agreement surrounding viable technologies for on-line monitoring for deconversion.

Expires: 2027-02-28

£93K

Market analysis

Bidding into UNITED KINGDOM NATIONAL NUCLEAR LABORATO… — what to expect

Supplier concentration and timing patterns that shape SME bid strategy.

42%

Top-5 supplier share

165d

Avg response window

165d

Median response window

25mo

Avg contract duration

Frequently asked

Common questions about selling to UNITED KINGDOM NATIONAL NUCLEAR LABORATO…

How much does UNITED KINGDOM NATIONAL NUCLEAR LABORATO… spend on procurement?

UNITED KINGDOM NATIONAL NUCLEAR LABORATO… awarded 54 contracts totalling £6.9M between 2023-08-01 and 2026-08-01, working with 49 unique suppliers. Average contract value is £147K.

Who are UNITED KINGDOM NATIONAL NUCLEAR LABORATO…'s top suppliers?

The largest suppliers to UNITED KINGDOM NATIONAL NUCLEAR LABORATO… by total award value are SIEMENS INDUSTRY SOFTWARE LIMITED, Elsevier B.V., Misco Technologies Limited. The top five suppliers together hold 42% of contract value.

What does UNITED KINGDOM NATIONAL NUCLEAR LABORATO… buy from suppliers?

UNITED KINGDOM NATIONAL NUCLEAR LABORATO…'s procurement is concentrated in analytical, scientific, mathematical or forecasting software package, newspapers, mobile telephones, alongside specialist categories. See the full CPV breakdown below.

How can my business bid for UNITED KINGDOM NATIONAL NUCLEAR LABORATO… contracts?

UNITED KINGDOM NATIONAL NUCLEAR LABORATO… publishes open tenders on Find a Tender and Contracts Finder. ENKII matches your business against live tenders, identifies certifications you'll need, and surfaces frameworks worth applying to. Free Readiness Score in 3 minutes.

What's the typical response window for UNITED KINGDOM NATIONAL NUCLEAR LABORATO… tenders?

UNITED KINGDOM NATIONAL NUCLEAR LABORATO… typically gives suppliers a median of 165 days to respond (average 165 days). Standard contract duration is around 25 months.

Continue reading

Related ENKII resources

Sources & methodology

How this profile is compiled

Analysed by ENKII · Updated 2026-08-01

This profile aggregates public-record procurement data published by the UK Government under the Open Government Licence v3.0. ENKII fetches, deduplicates, and aggregates source records; we don't edit the underlying facts.

Source portals

  • · Find a Tender (find-tender.service.gov.uk)
  • · Contracts Finder
  • · Spend Network
Full methodology — calculations, refresh cadence & caveats

Source records remain subject to Open Government Licence v3.0 attribution. ENKII doesn't warrant accuracy beyond the source portals' own publication.

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