United Kingdom National Nuclear Laboratory Limited

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Who leads it

Previous officers 36

Directors and secretaries as filed at Companies House.

Do you help lead this organisation? Set up its network · How it works

From Contracts Finder and Find a Tender, the UK Government's public procurement notices, under the Open Government Licence v3.0. Matched to this organisation by company number, charity number or exact name and postcode; every figure links to its source notice.

• Nuclear Safeguards Programme Buyer: Department for Energy Security & Net Zero £19,500,000 2026-05-19 Source: Find a Tender

  The Nuclear Safeguards Programme (NSP) provides international nuclear safeguards technical support to the International Atomic Energy Agency (IAEA) and the Department for Energy Security and Net Zero (DESNZ). Nuclear safeguards are technic…
• Nuclear Innovation and Research Advisory Board (NIRAB) Buyer: Department for Energy Security & Net Zero Value not published Date not published Source: Find a Tender

  This project supports the reconvening of the Nuclear Innovation and Research Advisory Board (NIRAB), an independent expert advisory body providing advice to DESNZ on risk based regulatory decision-making in the nuclear sector, linked to the…
• ThermoChimie Phase 4 Framework Buyer: Nuclear Waste Services Limited Value not published Date not published Source: Find a Tender

  The ThermoChimie project (Thermo-Chimie (version applicative 4.4.0)) is a thermodynamic database development project, co-funded by Nuclear Waste Services, NIRAS-ONDRAF, and Andra. A robust, traceable, exhaustive, and dependable thermodynami…

  Framework

About

What it does

Engineering related scientific and technical consulting activities; Technical testing and analysis

Incorporated

07/10/1999

Registered office

Warrington

Previous names

National Nuclear Laboratory Limited (until 17/12/2024)
Nexia Solutions Limited (until 10/11/2008)

Ownership

Group

1. United Kingdom National Nuclear Laboratory Limited is controlled by NNL Holdings Limited
   Evidence

   active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register

Ultimately controlled by NNL Holdings Limited.

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

360Giving data, published by funders. Coverage only includes funders who publish their grants to 360Giving, so these figures are a floor, not a complete picture.

Top funders

• Department for Business, Energy and Industrial Strategy · £20,996,749 (10 grants)
• Department for Energy Security and Net Zero · £882,167 (6 grants)
• Department for Science, Innovation and Technology · £608,252 (13 grants)
• Department for Education · £16,000 (2 grants)

Most recent

• Department for Science, Innovation and Technology £3,2952024-02-15
• Department for Energy Security and Net Zero £134,7712023-12-01
• Department for Energy Security and Net Zero £268,4882023-12-01
• Department for Energy Security and Net Zero £86,4532023-11-30
• Department for Energy Security and Net Zero £44,6212023-11-30

From Contracts Finder and Find a Tender (Open Government Licence v3.0), where this organisation is recorded as the buyer. Suppliers are matched to a Governance Register company or charity page at confidence 0.7 or higher; below that they are shown by name only.

Top suppliers

• Unknown supplier · £3,150,000 (7 contracts)
• Shepleys Engineers Limited · £1,000,000
• Elsevier B.V. · £646,891
• ENERGY, SAFETY AND RISK CONSULTANTS (UK) LIMITED · £603,312
• Gartner UK Ltd · £238,000

Most recent

• HALEU Deconversion Programme - PhD Call for Proposal Supplier: UnknownValue not published2026-10-01
• Open Framework for Nuclear Technical Services Supplier: AMENTUM CLEAN ENERGY LIMITEDValue not published2026-07-29
• Scientific Journal Access Supplier: Elsevier B.V.£646,8912026-07-29
• Site Works Supplier: Shepleys Engineers Limited£1,000,0002026-04-27
• BUR Software - VEEAM Supplier: ACADEMIA LIMITED£65,0002026-04-24

Sources

Official record from Companies House. Governance Register calculates the connections.