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

Engineered to Protect. It's what we do.

SEA is a Cohort Plc Company

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.

Our Expertise

Frigate Engineering Frigate Icon Ship & Fleet Protection
Astute Submarine 4 Submarine Icon Undersea Battlespace
Type 23 Frigates X2 Advanced Technology Integrated Maritime Systems
Maritime Support Services Future Thinking Maritime Support & Services
Soldier Weaponry Soldier Land & Littoral

Latest News

Five Minutes With Dillon Clements 18 May 2026 Five Minutes With Dillon Clements We checked in with Dillon Clements during Learning at Work Week to find out more about what he does at SEA. Read more
SEA Awarded Prestigious King's Award for International Trade 06 May 2026 SEA Awarded Prestigious King's Award for International Trade SEA has been awarded the coveted King’s Award for International Trade in recognition of its sustained global growth and success in exporting advanced fleet protection and anti-submarine warfare capabilities. Read more
Five Minutes with James Stevens 16 Apr 2026 Five Minutes with James Stevens We checked in with Head of Systems Engineering, James Stevens to find out more about what his team does at SEA. Read more
Advancing Underwater Dominance: How SEA and Mind Foundry are Shaping the Future of Acoustic Warfare 15 Apr 2026 Advancing Underwater Dominance: How SEA and Mind Foundry are Shaping the Future of Acoustic Warfare SEA is proud to demonstrate how its KraitSense acoustic surveillance system, combined with Mind Foundry’s NIGHTINGALE machine‑learning analysis engine, is reshaping modern Anti‑Submarine Warfare Read more

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Image of partnerships SEA Ltd hold. These include, Women in Defence Charter, Disability Confident, Cyber Essentials Plus, Association for Project Management, Women in Engineering Society

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

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