Southern Fire Alarms Ltd designs, installs, commissions and maintains fire and life safety systems including fire detection and alarms, radio fire alarms, fire telephones, fire suppression systems, voice alarms, emergency lighting, alarms monitoring etc. Based in West Essex, the company accredited to the SSAIB scheme and provides safe evacuation of buildings and their occupents in the event of a fire or emergency situation.

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.

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.

SPG Security Systems designs, supplies and installs access control and perimeter detection systems for a wide range of sectors. The product portfolio of the company includes gates, manual barriers as well as wall and roof brackets for electric fencing.

Being in the business for over 27 years, Spy Alarms Ltd has been installing security systems in the South East. The company has more than 17,500 customers – both domestic and commercial – throughout London, Kent and the Home Counties. Certified by the security industry governing body NSI to Gold Installer Standard, Spy Alarms consistently gains the Metropolitan Police ‘Alarm Performance Award’ (Gold).

Squire Alarms have been providing alarms & security solutions since 1981. Based in the Leicester, the company are experts in providing high quality installations of security systems to both residential and business premises. Squire Alarms' solutions conform to British Standards, and local Police policies and are NSI approved.

SSE Renewables is a major developer and operator of renewable energy generation, headquartered in the UK and Ireland, with a growing presence internationally. They are committed to delivering the green energy the world needs now and in the future. Part of the SSE plc group, they have an operational portfolio of around 4GW of onshore wind, offshore wind and hydro generation, with a secured future project pipeline of over 15GW in development

ST Fire & Security offers a full range of professional fire & security services, to accommodate domestic and commercial properties, operating from Manea, March, in Cambridgeshire, United Kingdom.

Standard Security Services Ltd installs intruder Alarms and CCTV systems in the North East of England from the Scottish borders into Durham. Being a member of N.A.C.O.S.S., the company installs all alarms, from domestic household or commercial to the highest standards.

A division of Stanley Black & Decker (SWK), STANLEY Security is one of the leading security providers in the United Kingdom and around the world. STANLEY designs, installs, monitors and services security systems for industrial, government, commercial and national account customers. STANLEY's employees have the training, the equipment and the processes they need to deliver the finest security solutions in the industry.

Established in 1992, State Digital Security Ltd. installs security alarms in the home and security systems for business premises. The company is headquartered in Cranleigh, Surrey and its services cover London, the Home Counties and the South of England.

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.