SR7 designs, develops, manufactures and implements surveillance and security systems with solutions for different sectors of industry, environment, defense, public and private administrations, ports, airports and other areas of different kinds. Based in Llanera, Spain, the company specialises in thermal cameras, as well as thermal processing and conventional imaging, radar, fence and ground sensors, and communications.

Door Entry Direct has over 25 years experience in door entry intercom systems. Door Entry Direct manufactures their own range of products. Door Entry Direct manufactures products like access control, door entry, electrical locking, gate automation etc.

As a specialist Certification Body, SSAIB holds wide scope of accreditation within the specialist fields of security services, electronic security and fire systems, Telecare services, monitoring, guarding services, and fire risk assessment. The objective is to provide comprehensive range of certification services within these specialist sectors. SSAIB's goal is to promote high standards of service within security and fire communities.

Standard Security Services Ltd installs intruder Alarms and CCTV systems in the North East of England from the Scottish borders into Durham. Being a member of N.A.C.O.S.S., the company installs all alarms, from domestic household or commercial to the highest standards.

A division of Stanley Black & Decker (SWK), STANLEY Security is one of the leading security providers in the United Kingdom and around the world. STANLEY designs, installs, monitors and services security systems for industrial, government, commercial and national account customers. STANLEY's employees have the training, the equipment and the processes they need to deliver the finest security solutions in the industry.

StarChip® is a dynamic semiconductor company that enables customers to directly benefit from its unique, optimized value chain system. We design and qualify products for mass production, then license our solutions for purchase directly by our customers through qualified foundries and test houses.

Established in 1992, State Digital Security Ltd. installs security alarms in the home and security systems for business premises. The company is headquartered in Cranleigh, Surrey and its services cover London, the Home Counties and the South of England.

Status Alarms Limited is a fully approved NSI GOLD MEMBER for intruder alarms, closed circuit television and door access control installations. The company has installed and maintained all types of security from a single circuit garden shed to residential homes, public buildings, schools, colleges, universities, police stations, fire stations, hotels, leisure complexes, museums and art galleries. Status Alarms has over 7,500 clients locally.

Incorporated in 2001, Status Security Systems specialise in the design, installation and maintenance of all aspects of electronic security equipment in the domestic, commercial and industrial markets.

Safe Apps Ltd (StaySafe) provide a lone worker safety solution for business customers and a personal safety application for the consumer market. StaySafe Business offers lone worker protection. It is a safety app that can track the location of lone workers in real-time and enable them to check-in safely after appointments, meetings and lone working sessions, whilst employers have full visibility through a secure, online hub.

Established for over twenty years, the Steadfast Group Ltd is a leading provider of security systems and services throughout County Durham, North East England. The company has expertise across a diverse range of industry sectors and provide both security systems and services from manned guarding and mobile patrols to CCTV installations and remote monitoring.

Steatite is a market leader in design, development and supply of rugged and industrial computers, custom lithium battery solutions and secure communication systems for mission critical and harsh operating environments. Steatite provides solutions for Defence and Security, Down-hole Applications, Emergency Services, Oceanographic, Vehicle Embedded Systems, Industrial Automation, CCTV and Security, Tracking and Telemetry.

Steatite Wordsworth, formerly known as Wordsworth and before that, Wordsworth Technology, is one of the UK’s largest providers of industrial rack mount computer systems, networking and I/O products. Established in 1985, Wordsworth has over 25 years’ experience in the design and manufacture of industrial systems.

STEMMER IMAGING is one of Europe's largest imaging technology provider with head office in Germany. STEMMER's product range includes various lighting technologies, high quality lenses for general purpose, wide range of area scan and line scan cameras, extensive selection of tested analogue & digital cables & plug-in connectors for any interface, softwares & large range of accessories such as housings, mounting brackets etc.

Sterling Safety Systems Ltd offers hybrid wire to wireless fire solutions. The Hyfire wireless fire detection and alarm system is the UK’s leading EN54 compliant system and has therefore become the choice of many blue chip companies.

Stewart Intruder Alarms Ltd offers security products like CCTV with solid after sales support in Belfast. The company provides a wide range of security services and equipment in Belfast. Security services include a variety of jobs ranging from personnel services, equipment and devices, along with the planning and deployment necessary to make them effective.

Security Companies Ekkersrijt (SBBE) oversees security at Ekkersrijt when it comes to public spaces. This foundation was created through a collaboration between the municipality of Son en Breugel, the Ondernemersvereniging Ekkersrijt (OTH) and the police department Best, Oirschot Son en Breugel.

STM Security Group (UK) Ltd is a UK based security company and an experienced supplier of manned security solutions and customer service staff, fully supported by leading edge technology. STM is a prominent supplier in the provision of security services with a wide range of customers in different industries. The company specialises in manned guarding, control room, mobile response, CCTV, SIA Security Guard training, etc.

Stocksigns Ltd is a supplier of health and safety signs. The company covers signage requirements of fire safety, quarries, water safety, first aid, traffic & highways. The wide services provided by Stocksigns Ltd. extend till MoD signage and local housing associations.

Stollmann is a developer of customised software and hardware for communications technologies and provides development and integration services throughout the world. The company provides software, hardware and services, directly and in cooperation with partner and distributors.

Stone Security Services operates using a 'ground-up' based approach, as security is not a one size fits all operation. Undertaking a full pre-risk assessment allows both Stone and the client to plan the necessary steps in fulfilling the individual security requirement.

Founded in 1989, STOREX offers a range of external hard drives, multimedia, and recorders, receivers freeview recorders, portable video and audio, USB sticks and various accessories.

Stran Security Systems specialises in supplying and installing security systems for commercial and residential customers throughout Northern Ireland. From fire alarms and burglar alarms to CCTV surveillance and access control, Stran Security provides safety to its customers.

Stratiis is an accredited IT company specialising in the delivery of IT Managed Services across hardware, software and infrastructure.

Stratos is a provider of mobile satellite communications in the UK. The company offers an unrivalled portfolio of global satcom solutions and value-added services. Stratos was set up by the International Maritime Organization (IMO) to enable ships to stay in constant touch with shore or to call for help in an emergency, no matter how far out to sea.

Strongpoint Security Limited is a small security and defense consultancy based in London.