National Nuclear Laboratory

Large enterpriseR&D servicesUK · WarringtonCompany No. 03857752

National Nuclear Laboratory is a UK limited company, based in Warrington, incorporated in 1999. Has won 99 UK public-sector contracts worth £855.5m across 18 buyers, primarily Sellafield Ltd and R&D services work.

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Active contracts

no new awards in 30d

Contracted (12m)

£6.3m

▲ 439% vs prior 12m

Public buyers

stable this month

Top buyer share

76%

Sellafield Ltd

Risk signals · 1 active

Derived from Companies House filings. More sources (HMRC, Insolvency Service register, press) will be added incrementally.

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Annual accounts due in 29d

Next filing due 30 Jun 2026.

INFO

Buyer concentration

Each block sized by share of total award value. A dominant block signals dependency on one buyer.

Severe concentration. Top buyer alone = 76% of revenue.

Sellafield Ltd

£650.0m

76%

NUCLEAR DECOMMISSIONING AUTHORITY

£129.2m

15%

The Department for Business, Energy and Industrial Strategy (BEIS)

£23.1m

Title	Buyer	Award type	Value	Awarded	Status
Provision of Technical Services	Sellafield Ltd	Direct contract	£650.0m	22 Dec 2017	expired
The provisions for services for laboratory and research related technical servic	NUCLEAR DECOMMISSIONING AUTHORITY	Direct contract	£85.0m	11 Dec 2023	active
National Nuclear Laboratory (NNL) Direct Award	Department for Energy Security & Net Zero	Direct contract	£19.0m	—	pending
Hot Isostatic Pressing of Plutonium - Installation and procurement	NUCLEAR DECOMMISSIONING AUTHORITY	Direct contract	£11.0m	23 Mar 2021	expired
Services - Hot Isostatic Pressing (HIP) of Plutonium Powders - Research, experimental and installation of equipment	NUCLEAR DECOMMISSIONING AUTHORITY	Direct contract	£11.0m	01 Mar 2021	expired
University Interactions - NDA Research Portfolio - Single Supplier Framework	NUCLEAR DECOMMISSIONING AUTHORITY	Direct contract	£10.0m	01 Apr 2024	expired
Management of the Nuclear Safeguards Programme	The Department for Business, Energy and Industrial Strategy (BEIS)	Direct contract	£9.8m	09 Mar 2021	expired
University Interactions	CTM Portal for the NDA Shared Services Alliance	Direct contract	£9.6m	04 May 2020	expired
Direct Reserch Portfolio - Lot A - University Interactions	NUCLEAR DECOMMISSIONING AUTHORITY	Direct contract	£6.0m	01 Apr 2016	expired
R&D on Advanced Nuclear Fuel	The Department for Business, Energy and Industrial Strategy (BEIS)	Direct contract	£5.0m	17 Feb 2017	expired
Nuclear Innovation and Research Office	Department for Business, Energy & Industrial Strategy	Direct contract	£4.8m	10 Feb 2020	expired
Nuclear Innovation and Research Office	Department for Business, Energy & Industrial Strategy	Direct contract	£4.8m	10 Feb 2020	expired
Nuclear Facilities and Developing a Strategic Toolkit	The Department for Business, Energy and Industrial Strategy (BEIS)	Direct contract	£3.1m	09 Dec 2016	expired
Nuclear Facilities and Developing a Strategic Toolkit	The Department for Business, Energy and Industrial Strategy (BEIS)	Direct contract	£2.8m	09 Dec 2016	expired
NDA/C17430/11	NUCLEAR DECOMMISSIONING AUTHORITY	Direct contract	£2.6m	27 Mar 2026	active

National Nuclear Laboratory

Risk signals · 1 active

Buyer concentration

Contracts won · 99 total · 33 active · 61 expired

Top buyers · by total award value

Award value — last 8 quarters

Category mix — CPV divisions

Geographic spread

Modifications received · scope growth on existing wins

Compliance scorecard

Financial health

Company information

Corporate structure

Companies House data

Peer suppliers

News mentions

Compliance scorecard

Financial health

Company information

Corporate structure

National Nuclear Laboratory

Companies House data

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