Silentron was established in 1978 with a strongly innovative goal of creating wireless anti-intrusion electronic alarm systems. Silentron's products include control panels, phone diallers, alarm device, keypads, transmitters, accessories etc. Silentron is Italy's first wireless alarm manufacturer.

Silicon Safe Ltd is a UK cyber security company that develops impenetrable network storage solutions in hardware, which prevent bulk data theft of secrets during a cyber-attack. The patent-pending ‘no-read’ technology isolates secrets at the hardware level – they can be stored and checked for accuracy, but it is impossible to steal them over connections to the appliance.

Simec Security provides access control, CCTV, ID, door entry, alarm and integration services to the commercial sector. The company has over 50 years of experience in the electronic protection of commercial key assets including- personnel, property and data. Simec Security have been awarded SAFEcontractor accreditation through the scheme that assesses health & safety competency of contractors and service providers.

Simpli Security is a UK based online retailer offering a huge range of security products including intruder alarm systems, CCTV cameras, money counters, safes, convex mirrors, traffic mirrors, metal sheds, storage sheds, bike storage, safety mirrors, barriers, car park barriers, bollards, bike racks, crowd/ queue control and much more.

Simply Shutters Ltd specialises in the manufacture UPV/maintenance-free vinyl exterior decorative window shutters, as well as fully operational window shutters in a variety of styles and colours and serves both the trade and retail markets. It offers a range of made to measure, retractable window and door security grilles to meet the needs of home owners and demands of commercial premises alike.

SISYS is a divison of Chubb Systems which is a part of UTC Climate, Controls & Security, a unit of United Technologies Corp. Established in 1981, SISYS is a provider of integrated security management systems to security conscious organisations. SISYS provides solution to site access management, automatic access control, automatic number plate recognition, simple ID pass production etc.

Sitewatch are consultants, installers and operators of automated fire and security systems. Services include CCTV, access systems, fire detection, security gates, remote management, biometrics, consultation, supply, installation & maintenance and project management. Whether clients' requirements are for stand-alone or fully integrated systems, Sitewatch can provide a tailored solution to every security requirement.

Based Split, Croatia, Skener d.o.o. specialises in providing integrated security solutions with today's leading technologies in digital video surveillance, access control, burglary systems and fire detection.

Smart Access Ltd is part od the Guardian Security Group and is based in Marsh Barton, Exeter Devon. The company is one of the leading companies for the supply and installation of Modern Salto Access Control, CCTV and Car park Barrier technologies across the UK. Smart Access Ltd covers the Entire South of England including, London, Oxford, Basingstoke, Reading, Salisbury, Bournemouth, Southampton, Gosport, Portsmouth, Swindon and Bath.

Smart Integrated Solutions Ltd provide dynamic support and design / installation for Security / Integrated Facilities Solutions, with substantial experience in a variety of vertical markets and sectors. Further services include consultancy and TFM innovation for Facilities Management Companies. These solutions include CCTV, ANPR, Access Control, Security Systems and Integrated software platforms, to provide centralisation to clients of systems

SmartGuard Aps are specialists in IP and software-based security solutions. The company focus on security solutions based on the interaction between modern technology, integration in existing systems and especially people. SmartGuard Aps product profile include video surveillance, alarm systems, fire alarms, access control systems etc.

SmartTask is an advanced employee scheduling and mobile workforce management solution that enables companies to plan and manage their workers. SmartTask combines intelligent rostering, live monitoring and integrated proof of attendance across both static and mobile teams, making it the ideal tool to improve operational control, enhance customer satisfaction, and support duty of care to staff.

Smartwares Security NV is distributor of security cameras, access control, intruder and fire detection in Benelux. The company offers security products from Siemens, Risco, Milestone, Fulleon, Dahua, Sony, Genetec, Videotec, Flir, and Raytec etc.

SMI Global is a UK based privately owned software company, with offices in both the UK and the USA. The company specialises in the development, sale and support of Mobile Solutions for the security industry. Typical user cases include remote access control, identity verification and Mustering.

SN technique was created in January of 2010 to become a leader in the services of installation, rental, service, marketing and video surveillance and security systems with the aim of expanding its presence nationally.

So Secure provides high quality home security, selected from the latest technologies for security applications in residential, commercial and industrial premises. Working across Kent, Sussex, Surrey and London, the company specialises in the design, installation and maintenance of effective security systems.

SIGNALIS comes about as the result of a merger between two very well known companies, SOFRELOG S.A.S. and ATLAS Maritime Security GmbH. SIGNALIS is part of the AIRBUS Defence and Space and ATLAS ELEKTRONIK family with the resources that enables to participate in even the largest business opportunities. SIGNALIS provides Vessel Traffic Services (VTS) systems, Coastal Surveillance Systems (CSS) and Critical Infrastructure monitoring solutions.

Soft & Sec has in-house knowledge to develop application software which seamlessly integrated into current burglar and access control systems.

The Somfy Group is structured as two separate branches: Somfy Activities, which is deals with the automation and control of openings and closures in residential and commercial buildings (screens, gates, doors, blinds, curtains, shutters, etc.), and Somfy Participations, which is deal with investments and equity shareholdings in industrial companies operating in other business sectors.

Sonepar is an independent family-owned company with global market leadership in B-to-B distribution of electrical products and related services. Founded in 1969 by Henri Coisne, Sonepar, electrical equipment distributor, grew rapidly thanks to the ongoing support of its family shareholders, organising and structuring its business of electrical equipment distribution. Sonepar is now enlarging its international footprint via targeted acquisition.

Sonic Security (UK) Ltd have been creating and supplying security systems for over 35 years. The company installs and maintains CCTV systems, security locks and much more. Sonic Security (UK) provides everything from specialist CCTV systems, to security fogging to immobilise intruders.