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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. Situated on the western shore of Portsmouth Harbour on the South Coast of the UK and with a workforce of approximately 180+ employees, STS Defence offers a high quality, comprehensive and responsive service to our customers through a dedicated and flexible skill base. Our focus on Quality, Cost & Delivery has resulted in a prestigious customer base that includes BAE Systems, Thales and the MoD, resulting in year on year growth. The first business in the UK accredited to NADCAP AC7120 The first business in Europe accredited to NADCAP AC7121 The first business in the world to achieve Merit status in both accreditations

Website https://www.sts-defence.com
Revenue $38 million
Employees 138 (96 on RocketReach)
Founded 2004
Phone +44 23 9258 4222
Technologies
Industry Manufacturing, Appliances, Electrical, and Electronics Manufacturing, Electronics, Rail, Electronic Equipment and Instruments, Engineering, Electronic Manufacturing, Electro-Mechanical Assembly, PCB Assembly, Cable & Wire Solutions, Fabrication & Finishing, Design, Integration & Installation, Post Design Support, Contractor Logistic Support
Web Rank 8 Million
Keywords Mission Critical Systems, Defense Technology, Defense Electronics, System Integration, Communications Systems, Control Systems, Aerospace Technology, Avionics, Embedded Systems, Navigation Systems, Marine Electronics, Sensors, Software Development, Engineering Solutions, Test And Measurement, Electronic Warfare, Hardware Design, Nuclear Technology
Competitors Lockheed Martin, Northrop Grumman, RTX, BAE Systems, Thales, L3Harris Technologies, General Dynamics, AgustaWestland, Saab, Rheinmetall Defence +44 more (view full list)
SIC SIC Code 37 Companies, SIC Code 372 Companies
NAICS NAICS Code 61143 Companies, NAICS Code 611430 Companies, NAICS Code 611 Companies, NAICS Code 61 Companies, NAICS Code 33 Companies, NAICS Code 6114 Companies

STS Defence Questions

The STS Defence annual revenue was $38 million in 2026.

Ben Stancliffe is the Managing Director of STS Defence.

96 people are employed at STS Defence.

The NAICS codes for STS Defence are [61143, 611430, 611, 61, 33, 6114].

The SIC codes for STS Defence are [37, 372].

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