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Developing, delivering, and supporting advanced, open, and cost-effective defence solutions that make our world safer

Engineered to Protect.

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We are SEA. Together, through teamwork, collaboration and innovation, we’re delivering operational advantage to our customers while building a more sustainable future for all.

What we do

Frigate Engineering Frigate Icon Ship & Fleet Protection
Astute Submarine 4 Submarine Icon Undersea Battlespace
Type 23 Frigates X2 Advanced Technology Integrated Maritime Systems
SEA April 22 2025 275 (1) Future Thinking Maritime Support & Services

Latest News

SEA Celebrates International Women in Engineering Day with Community Open Event 24 Jun 2026 SEA Celebrates International Women in Engineering Day with Community Open Event SEA welcomed students, aspiring engineers, and members of the local community to our Barnstaple site to celebrate International Women in Engineering Day (INWED). Read more
SEA Training Team Successfully Deliver ‘Train the Trainer’ Course to Royal Malaysian Navy and LUNAS 22 Jun 2026 SEA Training Team Successfully Deliver ‘Train the Trainer’ Course to Royal Malaysian Navy and LUNAS We have successfully completed the Train the Trainer programme with six individuals from both the Royal Malaysian Navy and LUNAS at our Barnstaple facility in North Devon. Read more
Five Minutes With Megan Didcote 19 Jun 2026 Five Minutes With Megan Didcote We checked in with Graduate Software Engineer Megan Didcote to find out more about her role at SEA. Read more
SEA Wins a UK Defence Innovation Contract for AUKUS Maritime Innovation Challenge 18 Jun 2026 SEA Wins a UK Defence Innovation Contract for AUKUS Maritime Innovation Challenge Focused on developing next-generation technology to enhance trilateral undersea warfare and Command and Control (C2) capabilities, the AUKUS Maritime Innovation Challenge falls under Pillar 2 of the AUKUS agreement. Read more

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Systems Engineering & Assessment Ltd,
Beckington Castle, 17 Castle Corner, Beckington, Frome, Somerset BA11 6TA

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