---
title: "Defence Marine Services - Next Generation: Contract 4 - Offshore Support to Military Training and Exercises"
ocid: "ocds-h6vhtk-034429"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-034429"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-034429.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-034429.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "MINISTRY OF DEFENCE"
published: "2025-06-20"
---

# Defence Marine Services - Next Generation: Contract 4 - Offshore Support to Military Training and Exercises

Buyer: MINISTRY OF DEFENCE  
Current stage: Award  
OCID: ocds-h6vhtk-034429

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## Summary

The Ministry of Defence has completed the procurement process for Contract 4 of the Defence Marine Services project, titled "Offshore Support to Military Training and Exercises". This contract, within the marine services industry category, was designed to provide offshore military training support in UK waters and select overseas territories such as Gibraltar, the Mediterranean, and NATO sea areas. The contract, awarded on the 14th of May, 2025, with an active status, spans a 120-month duration. The procurement, conducted via a competitive procedure with negotiation, was awarded to Serco Ltd and involves a comprehensive scope supporting military training, emergencies, and related maritime services at various strategic locations, including up to 100 nautical miles off the UK coast.

This tender presents significant opportunities for businesses within the marine and defence sectors, particularly those with capabilities in operating specialist ocean-going vessels. Companies experienced in supporting military operations or maritime emergencies and possessing the necessary accreditations and security clearances would be well-placed to pursue such contracts. The long-term nature of this contract allows for strategic investment and growth, provides continuity through transfer under TUPE regulations, and offers scope for innovation and service improvements. Subcontracting opportunities may also be available, as operators involved in such large-scale contracts might need diverse suppliers and partners to deliver the required services.

## Notice

The contract will provide discrete Defence Marine Services for Offshore Support to Military Training and Exercises in UK waters and select overseas territories. The services will be provided at various locations up to and including 100 nautical miles off the UK coast. Service delivery will also take place in Gibraltar, the Mediterranean and NATO sea areas. The contract duration will be 120 months. The specification for the services will include the following: * Supporting Military Training, Exercises, Trials, and Operations * Supporting Emergencies * Providing additional Maritime Support through a single service contract. The contract will provide the safe delivery of Marine Services through the operation of specialist ocean going vessels outside of Naval Base local areas, and worldwide, to support delivery of Specialist Trials (not conducted under the auspices of the Long Term Partnering Agreement), Specialist Military Training; including support to Operational Sea Training (OST) and exercise Joint Warrior under the direction of the Joint Tactical Exercise Planning Staff (JTEPS). The contract will also provide training support to the NATO Submarine Rescue System (NSRS).

### Lot Information

Lot 1

The contract will provide discrete Defence Marine Services for Offshore Support to Military Training and Exercises in UK waters and select overseas territories. The services will be provided at various locations up to and including 100 nautical miles off the UK coast. Service delivery will also take place in Gibraltar, the Mediterranean and NATO sea areas. The contract duration will be 120 months. The specification for the services will include the following: * Supporting Military Training, Exercises, Trials, and Operations * Supporting Emergencies * Providing additional Maritime Support through a single service contract. The contract will provide the safe delivery of Marine Services through the operation of specialist ocean going vessels outside of Naval Base local areas, and worldwide, to support delivery of Specialist Trials (not conducted under the auspices of the Long Term Partnering Agreement), Specialist Military Training; including support to Operational Sea Training (OST) and exercise Joint Warrior under the direction of the Joint Tactical Exercise Planning Staff (JTEPS). The contract will also provide training support to the NATO Submarine Rescue System (NSRS).

Renewal: Services will be required beyond the end of this contract. The commercial structure they will take is to be decided.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/034102-2025 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Competitive procedure with negotiation |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 20 Jun 2025 |
| Submission deadline | 8 Jul 2022 |
| Future notice date | Not specified |
| Award date | 13 May 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £146,700,000 |
| Lots value | £146,700,000 |
| Awards value | Not specified |
| Contracts value | £102,793,217 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | MINISTRY OF DEFENCE |
| Locality | PORTSMOUTH |
| Post town | Not specified |
| Postcode | P01 3LU |
| Country | Not specified |
| ITL 1 | Not specified |
| ITL 2 | Not specified |
| ITL 3 | Not specified |
| Local authority | Not specified |
| Electoral ward | Not specified |
| Westminster constituency | Not specified |
| Delivery location | TLJ South East (England), TLK South West (England), TLM Scotland |

## Supplier

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

## CPV Codes

### Divisions

- 34 - Transport equipment and auxiliary products to transportation
- 50 - Repair and maintenance services
- 60 - Transport services (excl. Waste transport)
- 63 - Supporting and auxiliary transport services; travel agencies services
- 80 - Education and training services
- 98 - Other community, social and personal services

### Codes

- 34512000 - Ships and similar vessels for the transport of persons or goods
- 34513350 - Dive-support vessels
- 34521000 - Specialised boats
- 50240000 - Repair, maintenance and associated services related to marine and other equipment
- 50241000 - Repair and maintenance services of ships
- 60651000 - Hire of vessels with crew
- 60651100 - Hire of sea-going vessels with crew
- 60653000 - Hire of boats with crew
- 63522000 - Ship brokerage services
- 63727100 - Towing services
- 80510000 - Specialist training services
- 98360000 - Marine services
- 98362100 - Marine-base support services

## Release History

- 20 Jun 2025 at 13:48 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/034102-2025
- 4 Jul 2022 at 09:29 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/018101-2022
- 8 Jun 2022 at 11:02 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/015748-2022

## Notice URLs

- http://www.contracts.mod.uk
- https://contracts.mod.uk/web/login.html

## 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-034429. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-034429.json.