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About Us

With over twenty years’ experience, SST forms part of the world’s largest supplier of value engineered TEMPEST, EMC-rated, rugged, encryption and communications security equipment solutions.

Based in Gloucester in the west of England, Secure Systems & Technologies (SST) designs and manufactures TEMPEST, EMC-rated, rugged, encryption and communications security equipment for military and government organisations throughout NATO and Europe. This includes NATO bodies, ministries of defence, ministries of foreign affairs, defence prime contractors, and other government agencies.


SST is a UK company that specialises in the development and manufacture of electronic equipment for military and secure government organisations throughout NATO and Europe.

With dedicated staff including a high percentage of engineers and TEMPEST industry specialists SST has built an enviable reputation for bespoke systems meeting the most rigorous government and military standards whilst maintaining ergonomic design and ease of use.

SST offers TEMPEST, EMC and rugged solutions largely based on ‘best of breed’ commercial off the shelf (COTS) equipment. With an in-house TEMPEST, EMC and environmental testing capability as well as prototyping and manufacturing facilities, SST can provide fast and reliable turn-around times from design and test through to manufacture and installation.

For harsh, tactical environments SST’s rugged products are subject to stringent, rigorous testing and are designed and tested to conform to international military standards (MIL-STD 810) and UK Defence Standards (Def Stan 00-35), for use on land, sea or air platforms. SST maintains the necessary programme management resources to deliver turnkey military solutions and associated support.

Standard and bespoke equipment

SST equipment is designed to meet exacting NATO, military and government standards. Every product is of the highest quality and is configured and quality controlled to meet the specified standards throughout its lifetime.

As well as an extensive range of standard products (link here) SST also provides customised solutions that work in accordance with your system security policy and provide interoperability with government or NATO secure networks.

Consultancy, testing and training services

As subject matter experts, SST provides consultancy, training and testing services including TEMPEST and environmental certification and UK NSA endorsement support.

SST’s TEMPEST and EMC test facility personnel have many years experience performing EMC and TEMPEST acceptance testing to military government test standards, on fixed and mobile platform installations.

SST also offers a range of consultancy, testing and training services to help meet your data security requirements. These services include TEMPEST certification testing, EMC and environmental design and testing services and consultancy on all aspects of security policy.

The company’s purpose-built headquarters in Gloucester, UK, includes state-of-the-art research and development facilities and manufacturing and testing resources. This ensures optimum efficiency and reduces lead times between conception and deployment.