Solutions that make a difference

STS Defence are specialists in mission-critical communications and intelligent systems, and operate in markets including the defence, marine, aerospace and nuclear sectors.

We help our customers to resolve complex technical challenges; investigating and creating innovative solutions, designing and manufacturing assemblies and sub-assemblies, and integrating and supporting systems through‑life.

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We deliver communications systems and support to both the naval and land domains.


We manufacture equipment and assemblies for the civil and military aerospace sector.


We manufacture subsea cabling systems and are currently condition monitoring systems for shipping.


We provide integrated training solutions and safety consultancy to the nuclear and defence sectors.

What we offer

Research & Technology

We undertake research into new technologies that help our clients resolve complex technical problems.

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Design & Manufacture

We produce electronic and mechanical systems and sub-assemblies where quality and security are paramount.

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Integration & Support

We integrate electronic systems onto military platforms and provide integrated logistic support through-life.

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Supporting you from idea to in-service

Wherever you are in the product lifecycle, we can help.  We work out ways to exploit new technology. We help mature concepts into workable prototypes and small-batch production, and we integrate systems and equipment and support them through-life.

By operating across the life-cycle spectrum, we offer you an agile, low-risk and cost-effective way to investigate, develop, deploy and sustain technology that delivers results.

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News and Articles

18th April 2019

Design & Manufacturing’s NVQ Success

Well done to all of our Design and Manufacturing colleagues who have worked hard to achieve their EAL Level 2 NVQ Diploma in Business-Improvement Techniques.…
17th April 2019

Red Funnel Goes Green with STS Defence

STS Defence is proud to announce the development of a revolutionary Artificial Intelligence (AI) system, IConIC®, that is now being used by Southampton to Isle…
27th March 2019

First T26 Communications Masts built and accepted

  Since 2017, STS Defence has been the leading design and development of the configurable communications masts for the Royal Navy’s future Type 26, City…

Case studies

Satellite communications for the Royal Navy

Integrated Logistic Support for Britain's warship and submarine fleets

Maritime Multimedia

Providing internet access to the crew's aboard the Royal Navy's warships.

Containerised communications for HMS Protector

Developing a military communications solution for the Royal Navy's ice patrol vessel

Water-cooled cabinets for the Royal Navy

Addressing a complex and challenging technical problem for military maritime environments in above and below surface platforms.

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Join the team

Do you want to be part of a company that’s going somewhere?  We are looking for individuals with a passion for solving problems.  Whether you are an experienced technology professional or just starting out in your career, STS Defence offers you a chance to grow.

Find out more about working with usView our current vacancies