Welcome to CSS, your complete specialised security company. Founded in 2000, CSS has engineers based throughout the UK and a network of global partners allowing us to operate on a worldwide basis.

Our projects range from small domestic systems to large fully integrated commercial sites, with clients including Buhler UK Ltd, Cambridge University, OMO Metropolitan and COMO Halkin Hotels, F&A, Global Holdings Management Group, HMRC, Jaguar Land Rover, KCE FM, Magrock Ltd, Orlebar Brown, Overbury, Realstar, Readie Construction, Siemens, Southbank Centre, Spire Healthcare, The Deerbrook Group, UNCLE, University of Kent and What3words. 

Through our fully trained and security vetted engineers we are able to offer full project management, installation, commissioning and testing, whatever the scale of your requirements.

We aim to provide our clients with complete peace of mind by giving them exactly what they want, with works carried out expertly and discreetly using the highest quality equipment that suits the clients’ needs and budget.