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UK6

CETUS Trials and Evaluation

  • First published: 16 June 2026
  • Last modified: 16 June 2026
  • Version: N/A
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Contents

Summary

OCID:
ocds-h6vhtk-050312
Published by:
Submarine Delivery Agency
Authority ID:
AA84169
Publication date:
16 June 2026
Deadline date:
-
Notice type:
UK6
Has documents:
No
Has SPD:
No
Has Carbon Reduction Plan:
N/A

Abstract

Defence and security - necessary to enhance or maintain operational capability, effectiveness, readiness for action, safety or security of the armed forcesThe SDA require Trials and Evaluation (T&E) to be undertaken using the CETUS vessel that is currently being developed by M Subs. T&E is required to de-risk underwater autonomy and demonstrate military utility through payload testing. As the sole designer and manufacturer of CETUS, M Subs hold all technical and proprietary knowledge of the vessel’s form and function, and as such are uniquely positioned to safely operate the vessel in the execution of trials.Initial trials are a repeat of S201 trials XLAUV trials previously performed by M Subs on a smaller vessel within Project Manta), which M Subs delivered through the DASA Open call (competitive) contracting. Knowledge of these trials is advantageous in allowing these activities to be repeated consistently and efficiently.While there are alternative commercial operators of AUVs, none currently hold the necessary system knowledge to operate this unique system appropriately. Choosing an alternative supplier risks delay, increased cost, or higher system risks (e.g. of system damage) while this knowledge is gained. This would impede development of this capability, which the Authority has a military imperative to advance.Once the initial trials have been undertaken there will be greater scope for the Authority to compete longer term operation of the system once it is better understood by all parties allowing a meaningful competition to be undertaken. Separate to the operation of CETUS, the Authority intends to competitively seek different payloads from the open market in the coming years, allowing a broad range of suppliers to participate in advancing military capability within this project.

Full notice text

Scope

Procurement reference

715850606

Procurement description

Defence and security - necessary to enhance or maintain operational capability, effectiveness, readiness for action, safety or security of the armed forces

The SDA require Trials and Evaluation (T&E) to be undertaken using the CETUS vessel that is currently being developed by M Subs. T&E is required to de-risk underwater autonomy and demonstrate military utility through payload testing. As the sole designer and manufacturer of CETUS, M Subs hold all technical and proprietary knowledge of the vessel’s form and function, and as such are uniquely positioned to safely operate the vessel in the execution of trials.

Initial trials are a repeat of S201 trials XLAUV trials previously performed by M Subs on a smaller vessel within Project Manta), which M Subs delivered through the DASA Open call (competitive) contracting. Knowledge of these trials is advantageous in allowing these activities to be repeated consistently and efficiently.

While there are alternative commercial operators of AUVs, none currently hold the necessary system knowledge to operate this unique system appropriately. Choosing an alternative supplier risks delay, increased cost, or higher system risks (e.g. of system damage) while this knowledge is gained. This would impede development of this capability, which the Authority has a military imperative to advance.

Once the initial trials have been undertaken there will be greater scope for the Authority to compete longer term operation of the system once it is better understood by all parties allowing a meaningful competition to be undertaken. Separate to the operation of CETUS, the Authority intends to competitively seek different payloads from the open market in the coming years, allowing a broad range of suppliers to participate in advancing military capability within this project.

Contracting authority

Submarine Delivery Agency

Identification register:

  • GB-PPON

Address 1: Abbeywood

Town/City: bristol

Postcode: BS34 8JH

Country: United Kingdom

Website: https://www.gov.uk/government/organisations/submarine-delivery-agency

Public Procurement Organisation Number: PBHX-4625-LVPD

NUTS code: UKK12

Email: Nicole.Hoult101@mod.gov.uk

Organisation type: Public authority - central government

Supplier

M-Subs Ltd

Identification register:

  • GB-COH

Address 1: 42 Sisna Park Road

Town/City: Plymouth

Postcode: PL6 7FH

Country: United Kingdom

Companies House: 05874602

NUTS code: UKK41

Email: alan.hingston@msubs.com

Type:

  • SME

Procedure

Procedure type

Direct award

Is this procurement under a special regime?

Defence and security

Contract

CETUS Trials and Evaluation

ID: 1

Status: Pending

Related lots

1

Date the contract will be signed (estimated)

25 June 2026, 23:59PM

Value

6680147.21 GBP Excluding VAT

8016176.65 GBP Including VAT

Main category

Services

CPV classifications

  • 73410000 - Military research and technology

Delivery regions

  • UK - United Kingdom

Is the total value above threshold?

Above threshold

Contract dates (estimated)

25 June 2026, 00:00AM to 01 May 2028, 23:59PM

Suppliers

  • GB-COH-05874602

Coding

Commodity categories

ID Title Parent category
73410000 Military research and technology Research and Development services on security and defence materials

Delivery locations

ID Description
100 UK - All

Alert region restrictions

The buyer has restricted the alert for this notice to suppliers based in the following regions.

ID Description
There are no alert restrictions for this notice.

About the buyer

Main contact:
N/a
Admin contact:
N/a
Technical contact:
N/a
Other contact:
N/a

Further information

Date Details
No further information has been uploaded.

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