SEI is a specialists in the supply and installation of CCTV equipment which is EPOS integrated and remotely accessible. The company with their vast and diverse experience caters for a small Shop or Home to larger Commercial/Industrial Sites, from conception through design, supply, installation, and maintenance.

Selco Technology Corporation LTD is a multinational industrial group specialising in the production of electronic security systems and CCTV cameras.

Selec Systems is the leading specialists in retail security products & integrated systems. The company's loss prevention solutions are used by some of the top retailers in high streets & shopping centres throughout the UK. Selec Systems specialises in supply, installation & maintenance of CCTV & access control systems. The products range include security mirrors, loop alarms, fully integrated CCTV systems using latest digital technology, etc.

Established in 1981, Select Alarms provide a complete and professional solution to all of electronic security & fire requirements, including burglar alarms and intruder alarms. Working within the public, business and domestic sectors,Select Alarms provides advise on all aspects of design, installation and maintenance. Based in the West Midlands, the company serves Birmingham, Wolverhampton, Walsall, Stafford and the surrounding areas.

Select Group are a security company offering security guards, mobile patrols, event security, certified bailiffs, door security, wedding security, keyholding,alarm response, events security, tour management, retail security and concierge service.

Selectamark Security Systems PLC has been providing world class property marking solutions since 1985. The company also offers state-of-the-art RFID tags for the protection of caravans and marine equipment. Other security products include an Asset ID system, The Chelsea Clip (bag theft deterrent), forensic marking range SelectaDNA. Selectamark Security serves a variety of sectors, including construction, OEM, business, healthcare and police.

Based in Italy Selesta Ingegneria is a market leader in the specialised area of its reference ICT sector. Selesta Ingegneria solutions find practical application in enterprises of all size, in the most diversified sectors: from banking to manufacturing, to services, to transports. Selesta Ingegneria offers access control to restricted areas, time and attendance data collection & management as well as shop-floor data acquisition.

Selex ES is an electronic and information solutions for defence, aerospace, space, security, high-integrity surveillance, network management, information security and mission-essential services. Selex ES undertakes works like control and monitoring of air and maritime traffic, the surveillance and protection of green and blue borders, cyber security, secure communication networks. Selex ES's operates from Italy & UK and has offices worldwide.

Selous Security are a SIA training provider for door supervisor, security guarding and physical intervention.

Selsor is a leading manufacturer of copper cables, optical fibre cables and systems. We provide the foundations for fast and reliable communication and global connectivity across global market sectors. Our ongoing investment in technology ensures that our optical fibre cables, copper cables and systems are of the highest quality standards.

Semlex relies on a broad experience in development, integration, operational management and supply of high technology systems in biometric identification and authentication.

Senator is an SIA approved contractor providing manned guarding, security guards, mobile security patrols, alarm response and key holding in London and South East England, the Midlands and Wales together with CCTV, remote monitoring & PSS; public space surveillance, PTS rail security; personal track safety and port security; PFSO security services.

Send For Help group is a lone worker protection provider in the UK, Europe and globally. Send For Help is comprised of the Skyguard and Guardian24 brands, & is also a developer of personal safety products, monitoring centre, software and infrastructure.

Sensor Access provides cutting edge solutions in every aspect of Access Control. They are an agile, forward thinking, organization with over 10,000 customers worldwide depending on them to secure their businesses. They ensure you receive a solution that's tailor made for your needs. They bring you trusted products and the latest technologies in access control, supporting all of their customers with comprehensive technical support.

Sensor Access are specialists in access control solutions, offering the most diverse range of security management platforms on the market ensuring that customer demands are always met. We are the only company to offer entry level, mid range and enterprise solutions for software based, web based and web hosted access control, time and attendance and alarm management systems.

BEA is a Belgium-based company, specialised in Doppler effect, active and passive infrared, magnetic induction and Laser technologies. Its application allows people to enter/access warehouses and avoid the exit via the entry.

Sensurity is a pioneering radar intruder detection manufacturer. Sensurity’s technology was developed at Queen’s University in Belfast, where a team of radio frequency experts developed unique patents in RF and digital signal processing to deliver the intelligence to differentiate between unauthorised intrusion events and false alarms.

Sentry Alarms Ltd was founded in 1988 to provide alarm systems for homes & businesses, or providing up gradation to existing intruder systems & alarm monitoring, & maintenance. Sentry Alarms Ltd. offers SSAIB (Security Systems and Alarms Inspection Board) and Police approved installers.

Sepura offers broadest ranges of TETRA and DMR products, & supplies surveillance accessories. Company acquired Fylde Micro Ltd, the UK-based radio trunking solutions company in 2014, 3T - the Austrian supplier of TETRA infrastructure in 2012 & Portalify, the Helsinki based applications developer, in 2013. Sepura's solutions enable the emergency services and users in the public safety, transport etc. to face critical communications challenges.

Serco Group plc is headquatered in Hampshire, United Kingdom. The company caters to markets in IT & BPO outsourcing, local government, home affairs, defence, science, nuclear, health, education, welfare to work and to the private sector.

Servest security services takes a professional and efficient approach, providing a secure environment whilst still preserving personal freedoms. We consider the impact that the delivery of our commercial security services has on employee welfare. We are also acutely aware of the effects security has on customer and visitor satisfaction, and public safety.

Sistemas Electrónicos y Telecomunicaciones, S.A. offers control access systems and time management, integrated and computerised alarm management platform and CCTV systems integration.

In 1979 brand Uzay (space), which was established by Saadettin Yurtsever, entered the sector of padlock manufacturing. Following innovations from this year they renamed as Seven, the distributor and supplier of various lock and key brands in 1986. By following the emerging technologies continually, locksmiths were introduced to home alarm systems. Seven are using their vision to provide better service for their energy only in their own industry.

With over 20 years experience in the burglar alarm, intruder alarm, home security / CCTV and door entry industry, SG security systems are an established business, offering home security and business security solutions to customers throughout the local area. The business is situated in Stretford (Manchester). SG cover most of Manchester areas including Stretford / Sale / Urmston / Chorlton / Altrincham / Hale / Bowdon / Didsbury / Flixton.

SGD Security Ltd is a well established independent security company operating out of South Wales offering a National Service. SGD Security Ltd can design, install, commission and maintain intruder alarm systems, intruder alarm systems with 24 hour monitoring, digital CCTV, CCTV with 24 hour monitoring, IP CCTV, thermal imaging CCTV, access control, vehicle gate and barrier access control, networked multisite access control, etc.

SGW Security Consulting has been providing independent security risk management and security engineering consultancy services. Based in Edwinstowe, the company's team of independent multi-disciplined Consulting Engineers, Fire Safety Engineers and Security Consultants, CCTV Consultants and Project Managers, specialising in securing the Built Environment. SGW recommend security measures that address risk, protecting people, property, and assets.

Established for more than 20 years, Sharp Alarm Systems offers complete alarm installation and servicing service for both domestic and commercial customers ensuring high level security. The services include alarm supply and installation, upgrades, servicing and CCTV.