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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.

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. 

SEA is a Cohort Plc Company

Our Expertise

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

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Latest News

SEA Strengthens Leadership Team with Appointment of Steve Langbridge As Director Of Programmes 17 Jul 2025 SEA Strengthens Leadership Team with Appointment of Steve Langbridge As Director Of Programmes Steve brings extensive experience in operational leadership, and will play a key role in driving SEA’s strategic objectives across its portfolio of complex projects.
SEA Strengthens Customer Focus with Appointment of Kerry Parfitt as Support & Services Director 14 Jul 2025 SEA Strengthens Customer Focus with Appointment of Kerry Parfitt as Support & Services Director With nearly 30 years of experience at SEA, Kerry brings a deep understanding of the business and a proven track record of leadership and customer focus.
SEA Completes Sale of Intelligent Transport Systems Business 07 Jul 2025 SEA Completes Sale of Intelligent Transport Systems Business The sale follows several years of targeted investment and organisational development within the Intelligent Transport Systems division, aimed at ensuring it could operate as a self-sufficient, reliable, and profitable unit.
Joseph Oldham Receives Highly Commended Award For Outstanding Engineering Development 02 Jul 2025 Joseph Oldham Receives Highly Commended Award For Outstanding Engineering Development Joseph Oldham, has been highly commended as part of the Progression Award at the Engineering Trust Annual Awards.

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

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

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