OrganisationFR
SIREHNA
Naval Group subsidiary in Nantes that designed the Seaquest S drone boat.
Last refreshed: 8 November 2026 · Appears in 1 active topic
Timeline for SIREHNA
#14 9 Oct
Mentioned in: France shortlists three armed boat teams
Autonomous Systems: Land & SeaBackground
SIREHNA, a Naval Group subsidiary, designed the Seaquest S uncrewed surface vessel with the Couach shipyard. The Seaquest S team made the final three of France's DANAE armed drone-boat programme in October 2026.
Based at Nantes-Bouguenais, SIREHNA specialises in controlling how naval platforms move, whether remotely crewed or autonomous. Each DANAE finalist now has twelve months to improve its boat before the French Navy chooses at the end of 2027.
Common Questions
Who designed the Seaquest S drone boat?
SIREHNA, a Naval Group subsidiary, designed and developed it in partnership with the Couach shipyard.Source: Naval Group
Where is SIREHNA based?
Nantes-Bouguenais, in western France.Source: France Travail
How the World Sees Them
Elbit Systems
a complete multi-domain autonomous ecosystem
Naval Group and the DGA
10-day increments without human intervention
Australian Department of Defence
Those Ghost Sharks now have teeth
UK Ministry of Defence
The UK is all in on AUKUS
DNV and Fassmer
becoming one of the key pillars in defence
UK Defence Intelligence and Kraken
almost certainly marks the first time
Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Updated 8 November 2026. Editorial standards.