---
title: "Nuclear Safeguards Programme"
ocid: "ocds-h6vhtk-051ceb"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-051ceb"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-051ceb.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-051ceb.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "DEPARTMENT FOR ENERGY SECURITY & NET ZERO"
published: "2026-06-01"
---

# Nuclear Safeguards Programme

Buyer: DEPARTMENT FOR ENERGY SECURITY & NET ZERO  
Current stage: Award  
OCID: ocds-h6vhtk-051ceb

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-051ceb)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-051ceb.json)

## Summary

The Department for Energy Security & Net Zero has awarded the Nuclear Safeguards Programme, aimed at providing international nuclear safeguards support to the International Atomic Energy Agency (IAEA) and the UK government. This contract, following an open competitive flexible procurement procedure, was awarded to the United Kingdom National Nuclear Laboratory. The project, located in London with work also conducted in Warrington, falls under the service category with a focus on technical services and nuclear safety. Awarded on 19th May 2026, the contract is valued at approximately £19.5 million before VAT and spans from 1st September 2026 to 31st March 2030, with a potential extension up to March 2033.

By participating in tenders such as the Nuclear Safeguards Programme, businesses, particularly those offering technical services related to nuclear safeguards and safety, can significantly expand their portfolios and gain reputable clients. Large-scale enterprises with expertise in nuclear technology, safety services, and technical consultation are particularly well-suited to take advantage of such opportunities. The structured market engagement prior to the award involved extensive consultation with the industry, ensuring that tender provisions align well with supplier capabilities, providing a favourable ground for business growth and mutual advancement in the nuclear field.

## Notice

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 technical measures to verify that States comply with their international obligations not to misuse nuclear materials for the manufacture of nuclear explosives. They are an essential part of the nuclear non-proliferation regime and underpin the international system of assurance which enables trade in civil nuclear material, equipment and technology between states - as such they have a key enabling role in the UK's own plans for civil nuclear energy as part of the low carbon energy mix. The NSP is part of the UK contribution to the maintenance of the international safeguards regime with main aims as follows: - to assist the IAEA in ensuring the continued and improved effectiveness of its safeguards system and to influence the formulation of technical safeguards policy in the IAEA; - to assist the United Kingdom in meeting international obligations under the Treaty on the Non-Proliferation of Nuclear Weapons ('the NPT') in as cost-effective a manner as possible; - to provide direct safeguards and technical support to DESNZ and the wider UK Government to assist in the formulation of domestic policy on safeguards and non-proliferation issues Market engagement A structured programme of market engagement was undertaken to inform the procurement strategy and ensure alignment with supplier capability and market conditions. This included: Three online sessions were held (23rd September, 28th October 2025 and 21st January 2026). We carried out market engagement to test capability, gather feedback, and inform the procurement approach.

### Lot Information

Lot 1

Renewal: The contract will be for 3.5 years with two optional extension periods of 2 years and 1 year respectively.

### Planning Information

Suppliers interested in participating are invited to express their interest in attending a webinar organised by the Department for Energy Security and Net Zero (DESNZ). This webinar will take place on Tuesday, 23rd September 2025 at 3:00pm.
To confirm attendance, suppliers must send an email to nuclearcommercial@energysecurity.gov.uk by 12:00 PM GMT on 22nd September 2025. The email should include the organisation name and the names and email addresses of up to three nominated attendees.
Engagement Process
The Department will conduct a preliminary market engagement session, open to all suppliers and interested parties. After each session, a written questionnaire will be provided, offering respondents the chance to submit more detailed and confidential feedback.
During the webinar, there will be a presentation outlining the high-level service requirements. The session will also cover initial ideas regarding the procurement structure and commercial aspects. Attendees will have the opportunity to ask questions and share comments, with further input welcome via the follow-up questionnaire distributed after the event.
Webinar Details
The Preliminary Market Engagement Webinar will be hosted via MS Teams at 3:00pm on Tuesday, 23rd September 2025. For those unable to attend, the session content can be provided upon request following the webinar.
How to Express Interest
To register interest in attending the engagement sessions and submitting feedback, parties should email nuclearcommercial@energysecurity.gov.uk. Please include the names, roles, and organisation for up to three attendees.
It should be noted that DESNZ does not guarantee the launch of a procurement process and cannot be held responsible for any costs or expenses incurred by potential suppliers in registering their interest.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/051205-2026 |
| Notice type | UK6 - Contract Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | SME, VCSE |
| Awardee scale | Large |
| All stages | Planning, Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 1 Jun 2026 |
| Submission deadline | 29 May 2026 |
| Future notice date | 1 Oct 2025 |
| Award date | 18 May 2026 |
| Contract period | 31 Aug 2026 - 31 Mar 2030 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £19,500,000 |
| Lots value | £19,500,000 |
| Awards value | £19,500,000 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DEPARTMENT FOR ENERGY SECURITY & NET ZERO |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1A 2AW |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | UNITED KINGDOM NATIONAL NUCLEAR LABORATORY |

## CPV Codes

### Divisions

- 09 - Petroleum products, fuel, electricity and other sources of energy
- 71 - Architectural, construction, engineering and inspection services
- 98 - Other community, social and personal services

### Codes

- 09340000 - Nuclear fuels
- 71356000 - Technical services
- 98113100 - Nuclear safety services

## Release History

- 1 Jun 2026 at 08:49 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/051205-2026
- 2 Feb 2026 at 18:00 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/009201-2026
- 9 Sep 2025 at 12:04 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/055000-2025
- 22 May 2025 at 09:38 - Planning - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/024571-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/051205-2026
  1st June 2026 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/009201-2026
  2nd February 2026 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/055000-2025
  9th September 2025 - Preliminary market engagement notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/024571-2025
  22nd May 2025 - Pipeline notice on Find a Tender

## Notice URLs

- https://beisgroup.ukp.app.jaggaer.com/esop/ogc-host/public/beisgroup/web/login.jst?VISITORID=7f7ea8f7-38fa-490f-8a15-b1f820ee5b70&_ncp=1770051965474.3504212-1
- https://beisgroup.ukp.app.jaggaer.com/esop/ogc-host/public/beisgroup/web/login.jst?VISITORID=7f7ea8f7-38fa-490f-8a15-b1f820ee5b70&_ncp=1770051965474.3504212-1pqq_108-ProcurementSpecificQuestionnaire-NSP.Thedeadlineforthiswillbethe04/03/202609:00.ThisstagemustbecompletedandpassedinordertoadvancetotheITTstage.IfyouaresuccessfulatPSQstage,thefinaltenderdeadlinefortheInviationtoTenderiscurrentlyscheduledtobethe29/05/202617:00.
- https://www.gov.uk/government/organisations/department-for-energy-security-and-net-zero
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-051ceb. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-051ceb.json.