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.

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.

SMi have had an established portfolio of Pharmaceutical, Defence, Energy, Finance and PPP/PFI events running since 1993. The SMi Group is a world leader in business-to-business information. Within the past year thousands of senior executives from blue chip companies benefited from SMi's highly targeted conferences, workshops and master classes.

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.

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 authorized people, while also denying entry to unwanted visitors. It also designs and installs camera surveillance with Remote Video Receiving Center (RVRC) facilities to meet requirements for loss & risk management control.

Sotatech Limited is a leader in design, development and sales of video security systems and supporting equipment ideal for any industry. The company offers new technologies, products, and services that constantly confirm their position as the security industry’s premier video systems and equipment trade tool.

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 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 Monitoring Services Ltd is an independent Alarm Receiving Center and Remote Video Response Center in the UK and has achieved the first NSI Quality Assurance ISO 9002 certificate. The company offers services such as security system monitoring, remote video monitoring, out-of-hours service co-ordination, lone worker monitoring, fire alarm monitoring, facilities & bespoke monitoring, as well as assisted living & telecare monitoring.

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.

Established in 2013, the company has grown to be one of the best-known and respected independent specialist fire and security providers working with and for a wide range of commercial, industrial, hospitality, private, public, and residential customers and has quickly earned a reputation for delivering tailored solutions for clients along with first class service.

Springhead Sprinklers have been professionally designing, installing, and maintaining fire protection solutions for over 20 years, from small domestic installations through to complex residential properties.

Sprinktec is an Independent Fire Protection Consultancy Service that can Offer benefits to both Consultants, Main Contractors and Sprinkler contractors,

As a specialist Certification Body, SSAIB holds wide scope of accreditation within the specialist fields of security services, electronic security and fire systems, Telecare services, monitoring, guarding services, and fire risk assessment. The objective is to provide comprehensive range of certification services within these specialist sectors. SSAIB's goal is to promote high standards of service within security and fire communities.

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.

Sterling Safety Systems Ltd offers hybrid wire to wireless fire solutions. The Hyfire wireless fire detection and alarm system is the UK’s leading EN54 compliant system and has therefore become the choice of many blue chip companies.

Stocksigns Ltd is a supplier of health and safety signs. The company covers signage requirements of fire safety, quarries, water safety, first aid, traffic & highways. The wide services provided by Stocksigns Ltd. extend till MoD signage and local housing associations.

Strings Security Limited is a buyer's guide offering products and services to the Security Industry. The company provide information on companies who provide the products and services its clients need ranging from Access Control Systems to X-Ray Screening and everything inbetween. Based in Europe and Middle East, Strings Security enables quick and easy search for suppliers, products and services for the Security Industry.

StrongBox Security Systesms is an SSAIB accredited, insurance approved company who both supply and install monitored burglar alarm systems connected to a dedicated 24hr monitoring station. The company designs and installs bespoke security systems for both the modern home and business premises. Specializing in intruder alarms, CCTV, access control, active fire systems, gate automation and lock smithing.

Stroud Alarms Ltd is Gloucestershire’s provider in specialist fire, safety and security solutions for domestic or commercial concerns. The company offers access control, barriers and gates, CCTV, emergency lighting, fire alarms, fire extinguishers, lone worker devices, intruder alarm and monitoring services etc.

STS is one of Europe’s and Africa's most successful CCTV, security equipment, work wear, mobile payment terminals distributors and installers. Originally UK based, they have grown in to a global company with branches and distributors throughout the world.

SWI Security Concepts Ltd are a premier installer of Access Control in Leicestershire, Rutland and the surrounding areas. We cater for small to large businesses, and also domestic properties in the Midlands area. Specialists in the design, installation, maintenance & repair of Access Control Systems, Door Entry Intercoms, Automatic Gates & CCTV.

Swift & Safe Security ltd is a security services company based in Greater London and Middlesex covering every angle of needed security services that are required by the public or private sectors. Swift & Safe Security provides security for communities, special events, businesses, parties, private functions, parking, warehouses and shopping centres in London and Middlesex areas.

Syncro Fire & Security provides bespoke fire and security solutions to commercial and industrial businesses throughout the UK; and is a highly respected name within the fire protection and security industry.

Double Check Security Group Ltd t/ T Class UK provides one of the best security services nationwide. They offer an extensive range of security services from Manned Guarding to CCTV Monitoring & Access Control.