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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

SEA and ACUA Ocean Sign MoU to Explore Deployment of Integrated ASW and ISR Capabilities Using Uncrewed Surface Vessels 09 Sep 2025 SEA and ACUA Ocean Sign MoU to Explore Deployment of Integrated ASW and ISR Capabilities Using Uncrewed Surface Vessels The strategic agreement sets the framework for a collaborative evaluation of the technical integration of SEA’s cutting-edge underwater sensing product, KraitSense and ACUA Ocean’s long-endurance, high sea state capable USVs
Transforming Modern Warfare with Advanced Launcher Technology 04 Sep 2025 Transforming Modern Warfare with Advanced Launcher Technology As maritime threats become faster and more diverse, naval platforms must respond with unprecedented speed, often without time to manoeuvre.
Delivering a New Standard for Undersea Surveillance 02 Sep 2025 Delivering a New Standard for Undersea Surveillance Persistent and agile solutions are increasingly vital to meet the growing demand for anti-submarine warfare (ASW) across both open ocean and littoral environments.
Five Minutes With Darren Boyle 20 Aug 2025 Five Minutes With Darren Boyle Our Technical Director, Darren Boyle, sat with us to discuss his leadership journey and thoughts on emerging defence technology in the UK and worldwide markets.

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Our Accreditations

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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