SPS Security is a privately owned security and support services company that provides coverage primarily throughout the North of England. The company has established a reputation for excellence, value and customer care and in April 2006 achieved accreditation as an SIA Approved contractor of security services.

SpyCameraCCTV.com is the UK's leading online retailer for spy gadgets, security cameras and CCTV equipment. It aims to dispel the myth that CCTV has to be expensive, and teaming that with its free expert technical support it can offer the support customers need. SpyCameraCCTV.com offers a huge range of products with something for everything whether a customer is seeking a security camera for their home, business or a professional CCTV system.

‘SQR group’ is one of the leading companies in the Global market providing a broad spectrum of security solutions, consultation services and the implementation of security plans based on thorough risk assessments and threat evaluations. Security, Quality and Reliability are the foundations of the company and they are what distinguishes ‘SQR group’ from other companies in the UK market in particular, and the Global market as a whole.

Square Box Systems Limited is a UK software company, specialising in workflow management tools for the global film and broadcast industry. It is the developer of the Queen's Award winning suite of CatDV media asset management tools.

Squire is a pioneer of top-selling security products for the home, for work and on the move. With a 235-year heritage as an independent family-owned British lock manufacturer, they are uncompromising in their commitment to innovation, service and performance. They offer one of the most comprehensive padlock ranges made to World Class standards, continuing the tradition of making high-quality products to meet ever-evolving security needs.

At SR Fire & Security Ltd, they specialise in the design, installation, commissioning and maintenance of all systems within the fire and security industry. They serve both residential and commercial sectors in Donaghadee, Bangor, Holywood, Belfast, Lisburn, Crumlin, Newtownabbey, Carrickfergus, Ballyclare, Antrim, Larne, Downpatrick, Ballynahinch and Dromore.

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

SSEN Transmission plays a critical role in the transition to a low carbon future, developing, building, maintaining and operating a network for net zero.

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.

StadiumTM is a UK based company that provides traffic management, stewarding, security and training services to national and international events. StadiumTM specialises in protecting crowded spaces with the aid of hostile vehicle mitigation barriers. The company also offers training and facility management solutions.

Stamford Security Services Limited is a security manned guarding service provider company covering Bracknell and allover United Kingdom. The company entered the security market with the intention of gaining a strong position through their extensive knowledge and quality services. They take great satisfaction from meeting the requirements of their clients, which has allowed them to ensure the continual growth of the company.

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.

Stega UK Limited provides managed cyber security services, securing enterprises and businesses against internal and external cyber-attack threats. They work to prevent bad things from happening to organisations, like data breaches and services disruptions, and protect the company's reputation and compliance posture.

Stellar Intelligence offers security, forensics and fraud services for its clients. The company helps clients prevent problems or detect them early through systems and personal security services. Some of its services include systems security, personnel security and background checks, remote monitoring of computer activity and field investigation and specialised inquiries.

STEMMER IMAGING is one of Europe's largest imaging technology provider with head office in Germany. STEMMER's product range includes various lighting technologies, high quality lenses for general purpose, wide range of area scan and line scan cameras, extensive selection of tested analogue & digital cables & plug-in connectors for any interface, softwares & large range of accessories such as housings, mounting brackets etc.

STM Group (UK) Limited is an award-winning company, providing bespoke manpower service solutions. It specialises in the delivery of high-quality security, cleaning, and customer-focused, services, underpinned and supported by leading edge technology.

STM Security Group (UK) Ltd is a UK based security company and an experienced supplier of manned security solutions and customer service staff, fully supported by leading edge technology. STM is a prominent supplier in the provision of security services with a wide range of customers in different industries. The company specialises in manned guarding, control room, mobile response, CCTV, SIA Security Guard training, etc.

Established in the security sector in 1998, Stone Management Group is a facilities management provider supplying Security, Cleaning and Maintenance services to a range of businesses. An approved SIA contractor, the company has built up a strong reputation in the North West of England for the high level of service they offer their client base.

Stone Security Services operates using a 'ground-up' based approach, as security is not a one size fits all operation. Undertaking a full pre-risk assessment allows both Stone and the client to plan the necessary steps in fulfilling the individual security requirement.

StorMagic is making the complex simple for edge computing environments, and they’re pioneering the industry in bringing the edge to the core - datacentre and cloud. Their storage and security products are simple, lightweight and cost-effective without sacrificing enterprise-class features for organizations with one to thousands of sites.

Stratiis is an accredited IT company specialising in the delivery of IT Managed Services across hardware, software and infrastructure.

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. Specialising in intruder alarms, CCTV, access control, active fire systems, gate automation and lock smithing.

StrongGuard Security UK is an accredited, multi-faceted and award-winning national security and risk management provider, specialising in Manned Guarding, Monitoring & Response and Risk Services & Consultancy.

The Student Loans Company is a non-profit making Government-owned organisation set up in 1989. They provide technology and financial support for people studying at universities and colleges throughout the United Kingdom.

Suffolk Fire and Security, based in Stowmarket, in the heart of Suffolk, UK, are an independent, family-run business. They professionally design, install, maintain and repair all fire, security, and door and gate automation systems. Their expertise covers Intruder Alarms, CCTV, Access Control, Fire Alarms, Fire Extinguishers, Emergency Lighting and Door and Gate Automation.

Sum Security an independent SSAIB Registered company based East Sussex providing installation, maintenance, repair and monitoring of high quality burglar alarms, CCTV systems, police monitored intruder alarms, access control and maintenance for home and business properties throughout the South East covering forest row, East Sussex, Kent, Surry and East Sussex.