Top suppliers
Top suppliers to Nuclear Decommissioning Authority
Top-five suppliers hold 77% of contract value — a concentrated market.
Procurement categories
What Nuclear Decommissioning Authority buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
73794872986680719092305064223545556385Recent contracts
Latest Nuclear Decommissioning Authority contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
Content Suite Platform (OpenText) 2026-2027
Open Text · 2026-11-02
£368K
C29663.016 - Evolving the NDA’s Grand Challenges for 2035
TUV SUD LTD · 2026-10-22
C29663.017 - PFAS Technology Review
TUV SUD LTD · 2026-10-22
ITSM Software
Specialist Computer Centres PLC · 2026-10-21
£2.3M
C29663.013 - Residues Disposition Characterisation
TUV SUD LTD · 2026-10-15
C29663.015 - PuIP - Checking and Assurance of Technology Choice Paper
TUV SUD LTD · 2026-10-14
Opswat Metadefender licensing, support and design services
Barrier Networks Limited · 2026-09-29
£4.0M
Integration Services with US DOE and Canadian AECL
Longenecker & Associates LLC · 2026-09-24
£60K
Role of the NDA Centre, Group Functions Design, Unity Programme Support
THE BERKELEY PARTNERSHIP LLP · 2026-09-22
£389K
C29663.011 – NRTF Support to ‘Radical Reset’ Collaboration Exercise
TUV SUD LTD · 2026-09-17
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Most of it is in R&D, business services and software & IT systems.
2
tenders open now
Inviting bids today
64
contracts ending in 12 months
Likely to be re-tendered: see which, and who holds them
18
planned procurements
Work this buyer has said it intends to tender
5
frameworks running
Routes to sell here without a full tender
Market analysis
Bidding into Nuclear Decommissioning Authority — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
20%
Awards to SMEs
77%
Top-5 supplier share
57%
Framework call-offs
4
Awards to social enterprises
Around 20% of Nuclear Decommissioning Authority’s classified awards go to small and medium-sized enterprises, and 4 have gone to voluntary, community or social enterprises. Around 57%of awards are call-offs from framework agreements — getting onto the right framework matters as much as the bid itself here.
Frequently asked
Common questions about selling to Nuclear Decommissioning Authority
How much does Nuclear Decommissioning Authority spend on procurement?
Nuclear Decommissioning Authority awarded 337 contracts totalling £1.3bn between 2023-11-08 and 2026-11-08, working with 157 unique suppliers. Average contract value is £4.5M.
Who are Nuclear Decommissioning Authority's top suppliers?
The largest suppliers to Nuclear Decommissioning Authority by total award value are ALEXANDER MANN SOLUTIONS LIMITED, IRON MOUNTAIN (UK) PLC, Alexander Mann Solutions. The top five suppliers together hold 77% of contract value.
What does Nuclear Decommissioning Authority buy from suppliers?
Nuclear Decommissioning Authority's procurement is concentrated in research and development services and related consultancy services, business services: law, marketing, consulting, recruitment, printing and security, software package and information systems, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for Nuclear Decommissioning Authority contracts?
Nuclear Decommissioning Authority 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.
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Related ENKII resources
GUIDE
PQQ & Selection Questionnaire — Procurement Act 2023
How UK central-government departments evaluate suppliers at the pre-qualification stage.
GUIDE
Cyber Essentials — for government contracts
Most central-government contracts handling personal data require this certification.
SECTOR
UK Government IT Services
G-Cloud, DOS, Crown Commercial frameworks. Software + consultancy is Nuclear Decommissioning Authority's largest spend area.
INDEX
All UK public-sector buyers
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Sources & methodology
How this profile is compiled
Analysed by ENKII · Updated 2026-11-08
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
Source records remain subject to Open Government Licence v3.0 attribution. ENKII doesn't warrant accuracy beyond the source portals' own publication.