---
title: "703918454 - PA23 EOST Support Extension"
ocid: "ocds-h6vhtk-066f78"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-066f78"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-066f78.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-066f78.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "DEFENCE EQUIPMENT AND SUPPORT"
published: "2026-05-27"
---

# 703918454 - PA23 EOST Support Extension

Buyer: DEFENCE EQUIPMENT AND SUPPORT  
Current stage: Award  
OCID: ocds-h6vhtk-066f78

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-066f78)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-066f78.json)

## Summary

The recent procurement process involved a direct contract extension by the Defence Equipment and Support, a central government public authority located in Bristol, UK. The procurement, titled "703918454 - PA23 EOST Support Extension," pertains to the defence and security industry, specifically dealing with the provision of support, repairs, and spares for the Electro-Optic Sensor Turret (EOST). The contract extension, valued at approximately £2 million (ex-VAT), aligns with the Procurement Act 2023 regulations, resulting in a direct award to Leonardo UK LTD, the Original Equipment Manufacturer (OEM). The contract commenced on 1 April 2026 and is scheduled to end on 31 March 2027.

This tender presents a significant growth opportunity, especially for large firms and suppliers with specialised expertise in military hardware and helicopter maintenance services. Companies capable of providing proprietary technical skills, engineering, and design services similar to Leonardo UK LTD may find it beneficial to explore similar contracts. The absence of competition due to technical stipulations underscores the demand for highly specialised capabilities, which can set businesses apart in the defence industry sector. This contract offers insights into the procurement strategies that favour single-source suppliers due to technical complexities and exclusive knowledge ownership.

## Notice

Provision of Support, Repairs & Spares of the Electro-Optic Sensor Turret (EOST)

### Procurement Information

The Secretary of State for Defence (the 'Authority') intends to extend contract CHC/648 by 1 year with the end date set for March 2027. The contract is held with Leonardo UK Ltd (previously Leonardo MW Ltd, Selex ES Ltd, DRS Technologies UK Ltd) for the delivery of continual support to the UK Chinook fleet's existing Electro Optical Sensor Turret (EOST) system. The estimated contract value for this extension is circa PS2M (Ex-VAT). It is considered that the award of this contract extension as a Direct Award is lawful in accordance with paragraph 6 of Schedule 5 of the Procurement Act 2023. This is on the grounds that, due to an absence of competition for technical reasons and given that there are no reasonable alternatives, only a particular supplier can supply the goods, services or works required. Leonardo UK Ltd is the Titan 385ES Turret Original Equipment Manufacturer (OEM) and appointed Design Organization (DO). Leonardo holds the relevant technical skills, engineering know how and equipment and has exclusive rights to the necessary technical data, drawings and design information (which the Authority does not have a right to obtain). It is not possible for another supplier to provide the necessary support to the UK Chinook fleet's existing Electro Optical Sensor Turret (EOST) system without access to the skills, knowledge and proprietary technical information that only Leonardo holds. Due to this absence of competition for technical reasons, and there being no reasonable alternative, the Authority considers that a direct award to a single supplier is lawful in accordance with Schedule 5, paragraph 6 of the Procurement Act 2023.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/049473-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Direct award |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 27 May 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 19 Mar 2026 |
| Contract period | 31 Mar 2026 - 31 Mar 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | £7,801,148 |
| Contracts value | £7,801,148 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active, Pending |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DEFENCE EQUIPMENT AND SUPPORT |
| Locality | BRISTOL |
| Post town | Bristol |
| Postcode | BS34 8JH |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK5 West of England |
| ITL 3 | TLK52 Bath & North East Somerset and South Gloucestershire |
| Local authority | South Gloucestershire |
| Electoral ward | Stoke Park & Cheswick |
| Westminster constituency | Filton and Bradley Stoke |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | LEONARDO |

## CPV Codes

### Divisions

- 34 - Transport equipment and auxiliary products to transportation
- 35 - Security, fire-fighting, police and defence equipment
- 50 - Repair and maintenance services

### Codes

- 34731700 - Parts for helicopters
- 35612400 - Military transport helicopters
- 50212000 - Repair and maintenance services of helicopters

## Release History

- 27 May 2026 at 09:58 - AwardUpdate - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/049473-2026
- 14 May 2026 at 16:07 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/044602-2026
- 19 Mar 2026 at 17:02 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/025459-2026
- 19 Mar 2026 at 16:09 - Award - UK5 - Transparency Notice - https://www.find-tender.service.gov.uk/Notice/025392-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/049473-2026
  27th May 2026 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/044602-2026
  14th May 2026 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/025459-2026
  19th March 2026 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/025392-2026
  19th March 2026 - Transparency notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-16840

## Notice URLs

- https://www.gov.uk/government/organisations/defence-equipment-and-support
- 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-066f78. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-066f78.json.