Communications Supply & Support Limited (CSS) is a privately owned UK SME based in Essex, United Kingdom with a strong engineering background in varied disciplines including analogue, digital and radio frequency electronics, power systems, mechanical engineering and control software development.

The Company has a long history working with US equipment manufacturers, UK Government departments, defence establishments and systems houses in the UK, US and Europe in addition to providing engineering support to small businesses in other fields including aerospace, automotive and light industry.


CSS can provide a comprehensive, end-to-end local UK service including marketing, import, sales, equipment maintenance and repair to component level, equipment calibration, electronic test, compliance engineering, PDS, system integration and technical / in-field support, or can provide assistance in any of these areas.


Our specialist business activities encompass RF and microwave receiving systems up to 110GHz, wireless surveillance and exploitation products, signal processing equipment, signal and data recording products, IT and display equipment, and bespoke software control applications.

CSS has its own in-house electronic and mechanical design facilities and develops its own proprietary products including RF components, RF interface and distribution systems, complete RF system front ends and frequency converters, bespoke power supplies and custom hardware.

With our low overheads and wide range of skills we are able to provide whatever level of assistance you require to meet all your project needs.​​ For further information please visit our Products and Services pages, and browse our Projects Gallery for examples of the range of work we are able to undertake.


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