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.

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.

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.

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.

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.

Sum Security an independent SSAIB Registered company based East Sussex providing installation, maintenance, repair and monitoring of high quality burglar alarms, CCTV systems, police monitored intruder alarms, access control and maintenance for home and business properties throughout the South East covering forest row, East Sussex, Kent, Surry and East Sussex.

Sunstone Systems are specialists in HD surveillance systems with significant expertise in Megapixel HD CCTV, IP Access Control and Wireless Technology. They have designed and installed a range of HD systems for large organisations, Independent schools, colleges and local authorities in the South East and throughout the UK.

STS is one of Europe’s and Africa's most successful CCTV, security equipment, work wear, mobile payment terminals distributors and installers. Originally UK based, they have grown in to a global company with branches and distributors throughout the world.

Sussex Alarms Limited is a privately owned company, established in 1981. Sussex Alarms installs and maintains burglar and fire alarms, CCTV and access control to commercial and domestic properties in Sussex and surrounding areas. The company achieved NACOSS (now National Security Inspectorate) approval in 1987.

SV Security Systems Ltd boasts more than 15 years establishment in the security systems marketplace. SV Security Systems offers a reliable service to the Midlands and North West regions. As an NSI NACOSS Gold Approved installer, the company provides the highest industry quality installations in accordance with the industry specific ISO 9001:2008 Quality Management System Standard.

Established in Tunbridge Wells in 1978, Swift Alarms Supplies Ltd. is one of the UK’s largest and most successful fire and security installation and maintenance organisations. The company provides a fully integrated, nationwide installation and maintenance service to its customers across the complete spectrum of fire and security products.

Sword Services was founded in 1990 by Lawrence Sword and has established itself as a major player in the field of industrial electronic security solutions and gained a reputation for exceptional service and delivery. The success of Sword Services can be put down to a number of factors, not least the tight-knit team of industry experts and technicians assembled within what remains a family-run business.

Established in 1987, T & D Security Systems supplies and installs dependable intruder and fire alarm systems plus many other security products in the central belt of Scotland. The company provides monitoring services for alarm system, via systems such as Redcare.

T. G. Baker (Sound) Ltd, established in 1973, is now a leading UK based sound & communications company specialising in the design, supply, installation, maintenance and service of public address, voice alarm, induction loop, infra red, intercom, CCTV access control and disabled refuge systems nation-wide.

T2 Security install IP CCTV systems across the UK. The company offers a range of systems for commercial and residential clients. It has bases of operation in the South East, the Midlands and the North of England.

Tag Systems, part of Austriacard Holdings AG, is a fast-growing Group with more than 900 employees in its Digital Security Division, delivers high-end products, services, and solutions to Financial Institutions and Fintechs in Europe, UK, Latam, MEA, and USA/Canada.

Established in 1985, Tamar Security has over 25 years experience in installing and maintaining within the security industry. Tamar Security is a family run business offering bespoke security solutions for domestic, commercial and industrial clients throughout the South West.

Tate Security Technology Ltd. provides all the traditional disciplines of CCTV systems, design and control panel manufacture. The company offers a number of specialist products and services specifically designed for security establishments such as prisons, secure hospitals, immigration detention centres and ministry of defence establishments.

Taybell Alarms Ltd supplies, installs and maintains conventional fire alarms, twin wire fire alarm systems, addressable and radio (or wireless) fire alarms throughout Leeds.