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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

Krait's Proven Edge in Crewed, Uncrewed, and Remote Operations 04 Feb 2026 Krait's Proven Edge in Crewed, Uncrewed, and Remote Operations Empowering modern navies with flexible surface & subsurface surveillance solutions designed for today’s evolving threat environment Read more
SEA Celebrates Double Success at Cohort Business Excellence Awards 30 Jan 2026 SEA Celebrates Double Success at Cohort Business Excellence Awards Team and Individual Awards Recognise Outstanding Transformation and Leadership across the Business Read more
5 Minutes With Steve Tollafield 21 Jan 2026 5 Minutes With Steve Tollafield To make sure our products are delivered to our customers' requirements, all of our software undergoes rigorous testing. Overseeing our Software Testing team is Software Test Manager Steve, we checked in with him to find out more. Read more
SEA Welcomes Victor Chavardes as Sales Director Asia Pacific 19 Jan 2026 SEA Welcomes Victor Chavardes as Sales Director Asia Pacific Victor’s appointment is expected to enhance coordination between regional customers, partners, and SEA’s technical and delivery teams, ensuring our solutions are aligned with customer needs and priorities. 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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