Company Number 17470429
Specialist Defence Engineering & Software Development
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DEFENSE • TEST • CONSULTANCY
Simetra Limited is a specialist engineering company based in Edinburgh, Scotland, providing engineering services to organisations across the UK and internationally.
We support defence, maritime and technology companies through engineering subcontracting, bespoke software development, modelling and simulation, technical consultancy and specialist engineering training.
Our expertise spans sonar, radar, signal processing, systems engineering and the development of practical engineering software.
Whether you require additional engineering capacity, support with a defined technical work package or specialist software development, Simetra provides a flexible, technically focused approach to addressing complex engineering challenges.
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At Simetra, we combine specialist domain knowledge with hands-on engineering and software development.
Our approach emphasises technical clarity, collaboration and practical solutions aligned with customer requirements.
We focus on developing adaptable engineering tools and providing specialist expertise that can integrate with existing development programmes.
From initial feasibility studies and software prototypes to defined engineering work packages and technical training, we aim to provide effective, focused engineering support.
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Services
Our Engineering Services
Engineering Subcontracting
Specialist engineering support for defined work packages, including systems development, integration, verification, validation and testing.
Software Development
Bespoke engineering software, signal-processing algorithms and simulation tools using Python and C, with applications in sonar, radar and sensing systems.
Modelling & Simulation
Development of mathematical models, synthetic data, simulation environments and engineering tools to support concept evaluation, system development and performance assessment.
Technical Consultancy
Specialist engineering advice, feasibility studies, technical assessments and independent analysis to support informed engineering decisions.
Engineering Training
Practical, tailored training in sonar systems, signal processing, modelling, simulation and engineering software.
Technical Demonstration
Our engineering activities include sonar and radar systems, signal processing, target tracking, modelling and simulation, and engineering software development.
Through practical software demonstrations and simulation-based studies, we explore engineering concepts, processing techniques and system behaviour.
These activities illustrate our technical approach and provide examples of the methods and tools that can support customer-specific engineering requirements.
Explore our technical demonstrations to learn more about Simetra's engineering capabilities.

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Industry Collaboration
Simetra Limited supports collaboration across the defence and technology sectors.
Our involvement in supporting Emergent Swarm Solutions in the counter-uncrewed aircraft systems (C-UAS) domain reflects our interest in contributing specialist engineering expertise to emerging defence technologies.
We welcome opportunities to collaborate with established defence contractors, technology developers and engineering organisations requiring specialist technical support.

               BEng(Hons),  PhD
About Our Founder
James Davies, Director of Simetra, is an engineer specializing in modeling, simulation, algorithms, and systems engineering within the defense sector. With a PhD from the University of Liverpool focused on target tracking and weapon guidance, James has built an extensive career developing solutions for land, sea, and air programs for organizations such as BAE Systems, Leonardo, and Thales. His expertise spans radar and sonar systems, sensor fusion, GNC, and Model Based Systems Engineering (MBSE), with a core focus on transforming complex engineering problems into robust, testable solutions using MATLAB, Python, and C++.
Established to provide high-quality modeling and simulation capability, Simetra reflects James's commitment to bridging the gap between specialist technical insight and practical application. His work addresses critical challenges in digital signal processing and navigation in GPS-denied environments while fostering innovation in test and evaluation. Beyond his consultancy work, James maintains strong ties to academia, collaborating with the University of Liverpool on research regarding quantum navigation and assured positioning. His goal remains centered on using the right combination of technology and engineering insight to improve system performance and mission confidence.
Are you looking for specialist engineering support?
Simetra Limited welcomes enquiries from defence contractors, maritime technology companies, engineering organisations and research teams across the UK and internationally.
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Whether you require engineering subcontracting, bespoke software development, modelling and simulation, technical consultancy or specialist training, we would be pleased to discuss your requirements.
Contact Simetra to explore how we could support your next engineering project.
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Please do not include classified or export-controlled technical information in initial enquiries.
Discuss Your Engineering Requirements
We aim to respond within 1 business day.
Or email us directly at: james-davies@simetra-limited.com
You can also find us on LinkedIn:
simetra-limited-cs