Sigma Engineered Solutions Ltd is a provider of fire & security systems such as access control, door entry, CCTV, intruder alarms & fire alarms. The company serves both domestic & commercial markets. Sigma Engineered Solutions Ltd installs and provides maintenance of burglar alarms & monitoring, photo ID system, fire alarm system as well as building management system.

Sikom Software GmbH is provider for cross-platform and flexible communication solutions. Founded in 1998, Sikom GmbH is headquartered in Heidelberg (Germany) and maintains a development center in Zwickau as well as offices in Hamburg, Hannover, Wuppertal, Stuttgart, Darmstadt, Erfurt and Gera.

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.

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.

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.

SleepTight Security specialises in installing, fault finding, commissioning and servicing electronic security system, including intruder and burglar alarms, CCTV, electric gates, fire alarm systems, access control.

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

Smart Witness is the vehicle CCTV and safety systems division of Y3K, a global manufacturer and distributor of professional CCTV Systems. At Smart Witness, we concentrate solely on the design, manufacture and supply of vehicle CCTV and safety 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.

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.

SME CCTV provides security solutions for London, Kent, Essex, Middlesex, Buckinghamshire, Hertfordshire, Berkshire, Sussex and Surrey.

Smooth Connectivity is a leading M2M connectivity supplier, connecting IoT devices globally via 370+ mobile network operators. Through the aggregation of MNO's & MVNO's they are empowered to deliver reliable, secure, multi-network connectivity via one platform, on one sim, across the globe.

Smye-Rumsby is a service-orientated company, offering equipment sales and a full, twenty-four-hour repair maintenance service, providing procurement and maintenance services to users of marine navigational equipment, including shore-based radar and radio communications. They also install, monitor and maintain CCTV systems along with a complete service for PA systems.

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.