Box Build: Precision, Quality Inspection, and Engineering Excellence
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Sustain | Modernise | Manufacture


STS Defence Celebrates New Apprentice Intake
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STS Defence Welcomes 2025 Graduate Cohort
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STS Defence to Supply Communications Masts for Hunter Class Frigate Programme
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STS Defence Fabrication Expertise: Precision Engineering for Mission-Critical Solutions
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STS Defence Achieves ISO 27001 Accreditation
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STS Defence, a part of the Cicor Group, is a UK-based engineering and technology company specialising in mission-critical, secure communications & networks, electronic warfare & control and instrumentation systems.
We operate primarily in the Naval and Air Defence markets, helping our customers to resolve complex technical challenges by delivering innovative solutions and programmes; designing and assembling equipment & systems, as well as integrating and supporting capability through-life.
Our independence, system engineering expertise, platform knowledge, and agility enables us to quickly understand and adapt to our customers’ issues and requirements, developing robust, workable, cost-effective integrated technology solutions and managed services; reducing risk and ensuring mutually successful outcomes.
Did you know that STS Defence:
Designs configurable communications masts for Royal Navy warships? Develops and demonstrates software algorithms for the Submarine Delivery Agency? Provides wiring looms and instrument panels for the Typhoon fighter aircraft? Trains the next generation of civil and military nuclear engineers? Delivers and supports mission-critical UHF satellite communications systems anywhere in the world?
Supporting you through the Product Lifecycle
We support you wherever you are in the product lifecycle by exploiting new technology, developing concepts into workable prototypes and small-batch production, and then integrating systems and equipment before supporting them through-life. All of this is underpinned by our commitment to quality, to assuring your information and to acting responsibly and ethically.
How we have helped our customers:

UHF Satellite Communications
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Water-cooled cabinets for the Royal Navy
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Consoles and Equipment Racks
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Type 26 Communications Masts
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