About Us


Harmonic Software Systems has been providing software consulting services and real time systems of the highest possible quality since 1999. Backed by a wealth of experience in real time operating systems, embedded software development and embedded security, we provide software consulting services and embedded systems programming to guarantee a well documented, well tested software system that exceeds all expectations.

We pride ourselves on our unrivaled commitment to quality, which is ingrained throughout the company through the unique concept of a Harmonic Software System, a powerful software development philosophy. This philosophy complements the latest Agile software development techniques, delivering real benefits for our customers.


To deliver superior embedded software solutions so clients are both profitable and delighted.


A standard in embedded software development, the key to which is underpinned by a strong harmonic software system philosophy. This standard not only contributes to a client’s bottom line but more importantly to the benefit of all through a safer, more efficient, reliable and quality-driven software landscape.


The concept of a Harmonic Software System has been created by Ed Liversidge, the managing director of Harmonic Software Systems Ltd, in an attempt to define the ingredients and mindset that are required in order to create quality software. It was born out of frustration. As a contractor, he saw software projects crippled with weak designs, outdated or non-existent documentation, unreliable hardware, a total lack of quality controls, or just too many hacks to get it working. The software development process ultimately caves in on itself unless the right approach is taken from the beginning. This approach involves careful planning, attention to detail and a commitment to maintaining an extremely high level of quality, and it must be consistently applied to all facets of the development process.

Got A Project In Mind?

We fix, develop and test embedded software for the aerospace & defence industry specialising in DO-178C safety-critical testing. Speak to us. We have laser focus, unprecedented attention-to-detail and provide phenomenal value.