Sonic Security offers integrated security systems, access control, CCTV surveillance, as well as fire & intruder alarm systems. Sonic Security's access control and vehicle barrier entry systems allow the free flow of authorised people, while also denying entry to unwanted visitors. It also designs and installs camera surveillance with Remote Video Receiving Centre (RVRC) facilities to meet requirements for loss & risk management control.

For over 30 years, Sonitrol has been protecting businesses, schools, and homes with a combination of know-how and the latest technology. Sonitrol offers a full line of security products, all backed by unique audio/video verification technology.

Sonitrol EV is a security based company dealing with cameras and access control, that provides services to schools, retail, healthcare, commercial, financial, construction, government and non-profit organisations. Their solutions include intrusion detection, video monitoring, keyless entry and access, along with fire and smoke detection for commercial, as well as home security applications.

Sound & vision is a premier systems integrator providing incomparable audio video solutions to designers, contractors, and private clients in the Chicagoland area for over 30 years.

Sound and Visual Systems Ltd can assist with all types of electronic security for commercial, public service and residential clients in and around the Devon and South West area.

Sound Products, Inc. provides fully personal, full service capabilities including design, installation and customer service. They create customised solutions with sight, sound and security that influence and enhance personal interaction, consumer behaviour and economic success. They service all types of A/V, security and communications systems for corporate and public sectors.

For over 30 years, South East Security has specialised in the installation and maintenance of intruder alarms, CCTV, access control, fire alarms and also provides full Fire Safety and Locksmith services. The company is NACOSS Gold and UKAS Product and Quality accredited by the National Security Inspectorate for Alarms, CCTV and Access Control and are audited twice a year to maintain these credentials.

Established in 1986 with offices in Ohio and Florida, Southeast Security Corporation offers installation services. Southeast Corporation custom designs systems for all types of commercial, industrial and governmental applications. Southeast Security is licensed in the States of Ohio and Florida for the installation of Fire Alarm Systems and is a member of the American Society for Industrial Security and National Fire Protection Association.

Southeastern Security Professionals (SSP) is security system integrator in the Southeast Region. The company provides design, installation, and service of fire alarm, burglar alarm, access control, gate entry, camera surveillance, IP cameras, intercom and other life safety and security systems.

Established for over 20 years,Southern Electrical Services Ltd is an independently owned and managed electrical installation and intruder alarm company. Based in Gerrards Cross, the company specialises in large high specification domestic installations and refurbishments. Southern Electrical Services Ltd carries out regular commercial installations, planned maintenance and testing & inspection work in the City and Home Counties.

Based in the heart of Surrey, Southern Fire & Security Ltd are a newly established security installation company. They have extensive knowledge base of all aspects of the security industry covering alarm systems, fire alarms, CCTV, access control, door entry systems and manned security, offering quality and professional services.

Southern Security Services Ltd is a security systems installer in the UK. The company provides intruder alarms, CCTV systems, access control systems, fire alarm systems and automated gates and doors to health authorities, schools and colleges, and residential installations.

Southland Fire Alarm provides fire alarm engineering services in the South Bay area. The company been involved with fire plans and submittals since 1983 and have specialised in providing plans for the fire alarm industry since the ADA laws came into effect several years ago. Southland Fire Alarm Engineering offers services, such as fire alarm engineering, installation and repair, annual fire alarm inspection, heat and smoke detectors.

Southtec offers the most up to date and convenient ways of updating, repairing and installing PC's, security systems, 24 hour video monitoring, PC based CCTV and computer networking.

Sovereign-SIS was estalished in 2009 bringing together leading operatives in the field of security, intelligence and investigations, in order to provide a truly comprehensive professionl service to meet the needs of customers.

Established in 1991, Sovereign Security Services Ltd. is an accredited CERTIFIED SECURITY AGENCY by the Security Association Singapore and endorsed by the Security Industry Regulatory Department (SIRD), Singapore Police Force. The company renders following services to its clients, Security Guard Service, Trained Guard Dogs with trained handlers, Security Alarm Systems & Planning and Advisory Services and Private Investigations.

Space CCTV design quality, cost effective Security Solutions for Homes and Businesses throughout the North West.

SPARC Fire & Security was set up in 2013 to primarily design, install and service fire and security systems. The company soon gained a reputation in the field of fire detection and security, for the quality workmanship in diverse applications in industry and commerce. With staff having experience of over 30 years in these disciplines, SPARC Fire & Security’s staff have been involved with the design, installation servicing of fire detection.

Special Purpose Electronics Ltd. has the expertise to provide a large range of systems including intruder warning systems with monitoring facilities, access control, door entry systems, closed circuit television (CCTV), security management systems and perimeter fence alarms. The company offers full range of services to both commercial and domestic applications.

Specialist Alarm Services Limited specialises in providing electronic solutions to security and convenience concerns in health care industries around the world. The company has designed, manufactured and installed Nurse Call and Staff Attack Systems at sensible prices for nearly 25 years. Its current customer base includes international and UK private sector clients as well as a host of NHS Trusts and Government Agencies.

Established in 1993 Spectre is a market leading independent provider of electronic security solutions. Typical projects include schools, colleges & leisure sites to large industrial and retail developments locally and nationally. The company's solutions include integrated management systems CCTV access control security grilles electric gates electronic barriers perimeter sences foggers asset tracking personal attack systems.