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INS

UK GOVERNMENT PROCUREMENT

Public-sector buyer · United Kingdom

International Nuclear Services Limited

International Nuclear Services 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

£2.9M

Total spend

22

Contract awards

12

Unique suppliers

£136K

Avg contract

According to ENKII, International Nuclear Services Limited has awarded 22 contracts worth £2.9M to 12 suppliers between 2023-08-01 and 2026-08-01, at an average contract value of £136K, with the top five suppliers holding 86% of contract value.

Top suppliers

Top suppliers to International Nuclear Services Limited

Top-five suppliers hold 86% of contract value — a concentrated market.

SupplierAwardsTotal value
AC&E Limited2£845K
University of Edinburgh6£558K
Oldham Engineering Limited3£418K
Applied Computing & Engineering Ltd1£395K
Dal Ben S.p.A2£256K
Lancaster Instruments Ltd1£100K
High Technology Sources Ltd (HTSL)1£80K
Frazer-Nash Consultancy Limited1£70K
Frazer-Nash Consultancy Ltd1£70K
Control Risks Group Limited1£36K
Renown Engineering Limited1£26K
Nuvia Limited2£14K

Procurement categories

What International Nuclear Services Limited buys

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

Servers

48820000
3 awards£1.2M

Research services

73110000
7 awards£658K

Tanks, reservoirs, containers and pressure vessels

44610000
2 awards£358K

Lifting and handling equipment

42410000
2 awards£256K

Consultative engineering and construction services

71310000
4 awards£153K

Instruments for measuring quantities

38340000
1 award£80K

Engineering design services

71320000
1 award£60K

Security services

79710000
1 award£36K

Railway equipment

34940000
1 award£26K

Recent contracts

Latest International Nuclear Services Limited contracts awarded

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

1647b Equipment and Trunnions

Renown Engineering Limited · 2026-07-22

£26K

Technical Analysis Server

AC&E Limited · 2026-07-15

£450K

Portable Instrument Calibration and Repair Services

High Technology Sources Ltd (HTSL) · 2026-05-13

£80K

Safkeg Stillages Fabrication

Dal Ben S.p.A · 2026-04-29

£119K

Technical Analysis Server

AC&E Limited · 2026-04-08

£395K

Technical Analysis Server

Applied Computing & Engineering Ltd · 2026-04-08

£395K

Provision of Panama Canal Transit Unarmed Security

Control Risks Group Limited · 2026-03-25

£36K

Collaboration Agreement for the Study of smouldering combustion in timber

University of Edinburgh · 2026-03-25

£60K

Student Agreement for Study of smouldering combustion in timber

University of Edinburgh · 2026-03-25

£126K

Safkeg Stillages Fabrication

Dal Ben S.p.A · 2026-03-02

£137K

Agreement to DEVELOP A PROTOTYPE LEAK TESTING SOLUTION FOR NUCLEAR TRANSPORT

Lancaster Instruments Ltd · 2026-03-02

£100K

Pegasus Tie Down Concept Design

Oldham Engineering Limited · 2026-02-26

£60K

Collaboration Agreement for Study of smouldering combustion in timber

University of Edinburgh · 2026-02-25

£60K

Student Research Agreement for Study of smouldering combustion in timber

University of Edinburgh · 2026-02-25

£126K

Student Research Agreement for Study of smouldering combustion in timber

University of Edinburgh · 2026-02-16

£126K

Collaboration Agreement for Study of smouldering combustion in timber

University of Edinburgh · 2026-02-16

£60K

Manufacturability Assessment of the PEGASUS Transport Package Design

Frazer-Nash Consultancy Limited · 2026-01-22

£70K

Manufacturability Assessment of the PEGASUS Transport Package Design

Frazer-Nash Consultancy Ltd · 2025-12-09

£70K

Provision to Design & Build a Universal Transport Container

Oldham Engineering Limited · 2025-10-08

£179K

Provision to Design and Build a Universal Transport Container

Oldham Engineering Limited · 2025-09-12

£179K

WANT TO WIN WORK FROM INTERNATIONAL NUCLEAR SERVICES LIMITED?

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Open opportunities

Open International Nuclear Services Limited tenders

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

GLOBAL BUNKER PROCUREMENT SERVICE & ASSOCIATED SUPPLY CHAIN MANAGEMENT

Deadline: 2026-08-07

£179K

Bunker Supply and Associated Services

£15.0M

Safkeg Stillages Fabrication

£300K

Sage X3 Build and Implementation, and Associated Planning and Reporting Tools

£1.5M

ERP Build and Implementation, and Associated Planning and Reporting Tools

£1.5M

Port Agency Services

£2.0M

Request for Information on Supplier Capability and Capacity for a Concept Design of a High Security Vehicle.

£110K

Pipeline

Contracts expiring in the next 12 months

When these contracts end, International Nuclear Services Limited typically re-tenders. SMEs preparing bids 3-6 months ahead win disproportionately often.

Provision to Design and Build a Universal Transport Container

Expires: 2026-08-31

£179K

Safkeg Stillages Fabrication

Expires: 2026-10-09

£137K

Market analysis

Bidding into International Nuclear Services Limited — what to expect

Supplier concentration and timing patterns that shape SME bid strategy.

86%

Top-5 supplier share

14d

Avg response window

11d

Median response window

36mo

Avg contract duration

Frequently asked

Common questions about selling to International Nuclear Services Limited

How much does International Nuclear Services Limited spend on procurement?

International Nuclear Services Limited awarded 22 contracts totalling £2.9M between 2023-08-01 and 2026-08-01, working with 12 unique suppliers. Average contract value is £136K.

Who are International Nuclear Services Limited's top suppliers?

The largest suppliers to International Nuclear Services Limited by total award value are AC&E Limited, University of Edinburgh, Oldham Engineering Limited. The top five suppliers together hold 86% of contract value.

What does International Nuclear Services Limited buy from suppliers?

International Nuclear Services Limited's procurement is concentrated in servers, research services, tanks, reservoirs, containers and pressure vessels, alongside specialist categories. See the full CPV breakdown below.

How can my business bid for International Nuclear Services Limited contracts?

International Nuclear Services Limited 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 International Nuclear Services Limited tenders?

International Nuclear Services Limited typically gives suppliers a median of 11 days to respond (average 14 days). Standard contract duration is around 36 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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