Estimated Value
Up to £6,680,147
Deadline
Not specified
Published
25 June 2026
Type
Not specified
Overview
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.
Additional details
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.
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Award Details
M Subs Ltd
£10,500,000
M-Subs Ltd
£6,680,147
M Subs Limited
£6,680,147
Likely incumbents
Suppliers who won similar work from this buyer in the last 5 years.
- 1
L3Harris MAPPS Ltd
£84m
total awarded
- 2
Thomas Telford Ltd
2 contracts wonlatest 8 Jan 2026£47,267
total awarded
- 3
Abbott Risk Consulting Limited,
£4m
total awarded
- 4
Mecal Ltd
1 contract wonlatest 25 Aug 2026ends 31 Mar 2030£122,500
total awarded
- 5
LLOYD'S REGISTER EMEA
1 contract wonlatest 25 Aug 2026ends 31 Mar 2030£122,500
total awarded
L3Harris MAPPS Ltd is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.
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Buyer Profile
Submarine Delivery AgencyKey Dates
Published
25 June 2026
Submission deadline
Not specified
Notice type
award
Source
find a tender
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