---
title: "Project Caesium"
ocid: "ocds-h6vhtk-05ffb2"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05ffb2"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05ffb2.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05ffb2.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "MINISTRY OF DEFENCE"
published: "2026-05-06"
---

# Project Caesium

Buyer: MINISTRY OF DEFENCE  
Current stage: Award  
OCID: ocds-h6vhtk-05ffb2

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## Summary

The procurement process, initiated by the Ministry of Defence, involves "Project Caesium", focusing on military research and technology in the United Kingdom. The process has reached the contract termination stage as of 6th May 2026. The contract initially awarded to NPL Management Limited was aimed at delivering specialised research and advice on UK sovereign quantum clocks for the Navy. Located in Portsmouth, the Ministry of Defence undertook a direct procurement method, indicating a process below the threshold without competition. The contract was active from January 5th, 2026, to March 31st, 2026, with the final gross value of the contract being £222,430.

This tender presents substantial opportunities for businesses specialising in military research and technology. Firms with expertise in quantum technology and defence-related solutions are well-suited to engage in similar contracts, given the Ministry of Defence's focus on leveraging innovative technologies for operational advantage. Large-scale enterprises like NPL Management Limited, which can deliver high-level research outputs under tight timelines, are prime contenders for such procurement processes. Business growth can be catalysed by fulfilling the specialised needs of central government projects, particularly in the defence and security sectors.

## Notice

Caesium will provide world leading specialist research and advice from NPL to understand the potential of UK sovereign quantum clocks to deliver operational advantage to Navy and inform capability requirements and decision making in NAVY. NPL will be providing 3 reports by the end of the Financial Year.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/041500-2026 |
| Notice type | UK11 - Contract Termination Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Below threshold - without competition |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 6 May 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 5 Jan 2026 |
| Contract period | 5 Jan 2026 - 31 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £185,359 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Terminated |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | MINISTRY OF DEFENCE |
| Additional buyers | Missing |
| Locality | PORTSMOUTH |
| Post town | Portsmouth |
| Postcode | PO2 8BY |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ3 Hampshire and Isle of Wight |
| ITL 3 | TLJ31 Portsmouth |
| Local authority | Portsmouth |
| Electoral ward | Nelson |
| Westminster constituency | Portsmouth North |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | NPL MANAGEMENT |

## CPV Codes

### Divisions

- 73 - Research and development services and related consultancy services

### Codes

- 73410000 - Military research and technology

## Release History

- 6 May 2026 at 12:02 - ContractTermination - UK11 - Contract Termination Notice - https://www.find-tender.service.gov.uk/Notice/041500-2026
- 5 Jan 2026 at 23:58 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/000491-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/041500-2026
  6th May 2026 - Contract termination notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/000491-2026
  5th January 2026 - Contract details notice on Find a Tender

## Notice URLs

- https://www.gov.uk/government/organisations/ministry-of-defence
- 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-05ffb2. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05ffb2.json.