---
title: "Defence Marine Services - Next Generation: Contract 4 - Offshore Support to Military Training and Exercises CONAWRD"
ocid: "ocds-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21.json"
source: "Contracts Finder"
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 CONAWRD

Buyer: MINISTRY OF DEFENCE  
Current stage: Award  
OCID: ocds-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21.json)

## Summary

The Ministry of Defence has awarded a contract titled "Defence Marine Services - Next Generation: Contract 4 - Offshore Support to Military Training and Exercises CONAWRD," focusing on marine services. The industry category for this tender is marine services with a CPV code of 98360000. The procurement process is at the award stage as of 14 May 2025, with the contract spanning from 1 October 2025 to 30 September 2035. This project involves operations in UK regions such as South East, South West, and Scotland, and it extends to Gibraltar, the Mediterranean, and select NATO sea areas. A selective procurement method was utilised, specifically a competitive procedure with negotiation for contracts above a certain threshold. The contract is valued at £146,700,000, with Serco Ltd selected as the supplier.

This contract presents significant opportunities for businesses involved in marine operations, particularly those with the capability to provide specialist ocean-going vessels for military and training exercises. Given the contract's complexity and scale, large enterprises with experience in supporting military training and emergency operations would be best suited to compete. Organisations able to deliver maritime support over an extended geographical range would find this tender particularly aligned with their service offerings, fostering growth avenues in both domestic and international waters.

## 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).

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/adca3a3c-6640-4c5d-9eff-0650e0295ae7 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Competitive procedure with negotiation (above threshold) |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 20 Jun 2025 |
| Submission deadline | 30 Jun 2025 |
| Future notice date | Not specified |
| Award date | 13 May 2025 |
| Contract period | 30 Sep 2025 - 30 Sep 2035 |
| Recurrence | Not specified |

## Values

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

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | MINISTRY OF DEFENCE |
| Locality | PORTSMOUTH |
| Post town | Portsmouth |
| Postcode | PO1 3LT |
| 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 | Charles Dickens |
| Westminster constituency | Portsmouth South |
| 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

- 98 - Other community, social and personal services

### Codes

- 98360000 - Marine services

## Release History

- 20 Jun 2025 at 12:46 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/adca3a3c-6640-4c5d-9eff-0650e0295ae7

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/adca3a3c-6640-4c5d-9eff-0650e0295ae7
  20th June 2025 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/d112692b-9d81-4e65-b9d5-8d182cf5b19c
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/504f2509-fd6c-4afc-acf2-75c73d3cbd87
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/f7ae4b70-14e5-44a3-8911-43641b631a2f
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/5114795a-751b-4196-a02a-dec9be079e72
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/8897b31c-a4b7-4472-9b5a-f23787a43171
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/b49d7724-4bb4-49de-bd78-2a6d96031c49
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/9fb7fbd8-4800-478c-be13-15b47a23d326
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/e4e90ef3-f9b6-4eaa-9abe-8b76f82a8cd6
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/ea068b06-97ef-4f04-a007-6ee44ab25a1e
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/22a47242-5656-45cb-867f-b19f24196311
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/c9be736d-10e7-4eaa-b595-d385b41ea7dc
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/2d112fa7-56b3-46b4-a262-37ed1533433c
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/2df2ae63-bd1e-43fd-883c-ccd8ee7f3116
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/4d7f1a80-0453-4a7c-805c-7cc8750b836f
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/606d046c-6ba7-442a-9f3e-743a114477cb
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/d684d2f9-ad3a-4581-954a-193da3d62a2e
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/b208d1f8-3169-4bbd-ad8e-39dfa0518063
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/bfa5a73b-77fd-4ef2-a249-576b202c40b4
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/26583bc1-77ef-4e25-8579-4b24705e1297
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/74f6b461-e13e-4bd2-9ce9-b0dcd4f16425
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/7876d618-40f3-440b-858b-4a760b897c34
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/6d7c5e12-0458-45e0-9c16-b1ca9cd8ec40
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/aca904ec-ce49-418f-8bed-43ac90364a7f
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/3d5d8804-ffc8-4b5d-ad43-df4f9178777a
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/a2ba9ae1-ed1a-4c00-988f-25ea5c78d111
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/5ea2c0b2-c825-4426-a2b6-f96de54ccf3c
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/6e6ae32e-ca3c-432f-8814-e2c531b9bac8
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/8f631ff6-2d52-40c0-8041-5a37ed1d9a57
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/cc19dfdb-df5e-4aea-8c38-cb277e558fbe
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/25aa3c5a-5418-4598-aa8c-a5287044a292
  n/a
- https://contracts.mod.uk/esop/ect/filesharing/flist/6917138/0/foldersFilesList.si?reset=true&isOnModification=false&_ncp=1750416016623.1973141-4#fh
  Contract Main Body
- https://contracts.mod.uk/esop/ect/filesharing/flist/6917138/11593214/foldersFilesList.si
  Contract Award Notification Documents

## 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-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-e5e45a73-b0e8-441d-9b09-e3c75f4f1a21.json.