Sibylline is a leading strategic risk consultancy delivering timely, accurate, relevant and actionable intelligence; tailored to increase organisational resilience and decision advantage. They support businesses, governments and NGOs through the provision of high-quality risk analysis and due diligence services.

Sicura Systems' world-class services deliver innovative technology and creative solutions for the IT, Broadcast Media and Security industries. Using our extensive experience of managing complex information streams to develop reliable, resilient and scalable products.

Siemens Mobility combines innovation with responsibility to deliver technologically advanced solutions ensuring journeys are punctual, comfortable and safe. Their technologies and solutions are deployed in commuter/regional trains, rail automation, high speed/intercity trains and railway electrification projects.

Sight & Sound provides high quality and reliable security services throughout London, Kent, Essex, East & West Sussex and Hampshire. The company provides manned guarding, key holding & alarm response, remote monitoring services, etc. for factories, offices, retail, schools, construction sites, councils, hospitals and libraries, as well as other industries and businesses. Sight & Sound is a SIA Approved Contractor.

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.

Silico envisions a world where every decision is simulated, prior to being made in the real world. Silico is the leading provider of process simulation software, working with enterprises from any sector to transform their decision-making in as little as four weeks. The Silico platform is an end-to-end solution that enables businesses to create digital twins of any business or process quickly and easily.

Silicon Safe Ltd is a UK cyber security company that develops impenetrable network storage solutions in hardware, which prevent bulk data theft of secrets during a cyber-attack. The patent-pending ‘no-read’ technology isolates secrets at the hardware level – they can be stored and checked for accuracy, but it is impossible to steal them over connections to the appliance.

Silobreaker is a pioneering security and threat intelligence technology company, that provides powerful insights on emerging risks and opportunities in near-real time. It automates the collection, aggregation and analysis of data from open and dark web sources in a single platform, allowing intelligence teams to produce and disseminate high-quality, actionable reports in line with priority intelligence requirements (PIRs).

SilverNet is a UK based manufacturing company specialising in the design and manufacture of rugged, high performance cost-effective wireless and switching networking devices since 2005. Over which time SilverNet have gained an enviable reputation in the wireless market.

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.

Sirius Insight delivers integrated and enhanced information to inform critical decisions in the marine environment. They do this by being experts in the maritime domain and pioneers in Artificial Intelligence - they are constantly developing more advanced solutions and adapting the latest technology to address emerging challenges in maritime situational awareness.

Sitehop is a cybersecurity technology company developing and supplying FPGA hardware-enforced cybersecurity solutions for companies requiring the highest level of security available, which is not available from software-only solutions.

Sitensys can provide you with a full security solution for the surveillance and protection of personnel and property. We offer fully integrated electronic systems and manned guarding solutions. At the heart of Sitensys Security is our on site guarding services.Sitensys specialises in manned guarding utilising fully integrated electronic security solutions, closed circuit television surveillance (CCTV) and access control systems.

Six Degrees Group is a cloud-led managed service provider. It works as a collaborative technology partner to businesses making a digital transition. Always placing clients at the heart of its strategy, Six Degrees’ passionate teams combine technical expertise and deep sector-specific knowledge to innovate, craft, and manage the right solutions to power their businesses.

Skanska, established in 1887, is one of the world’s leading project development and construction groups. The UK operation is one of the country’s top contractors.

SkillWeb's SmartTask security management solution is light weight, flexible and easy to use. SkillWeb provides technology solutions designed to help organisations manage their mobile workforces and track the movement of their goods. The company's solutions typically help an organisation track and report on the progress of items or jobs throughout their journey to successful completion highlighting in real-time any operational issues.

Skyguard provide the UK's premier personal safety service for lone workers and people at risk. The company offers a state of the art UK based 24/7 incident management centre certified to the highest industry standards, along with a range of best of breed personal safety devices.

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 Grid Forums Ltd. are an independent conference production company serving the smart grid technical community. They monitor the market, conduct depth interviews with technical decision makers, and translate this into techno-commercial conferences that empower participants to accelerate their implementation plans and deliver exceptional results to their organisations.

Smart Security Services Ltd is an SSAIB-approved company for the Design, Installation & Maintenance of both Intruder & CCTV Systems.

SmartSec Solutions was established with a clear and defined vision; to offer the clients an outstanding and unrivalled personalised service. They pride themselves in the quality of the service delivery. With their extensive range of Security Services, coupled with the Reception Concierge and Cleaning Solutions, they believe that at SmartSec they have the right choice of solutions for the business.

Smart Spaces is an award-winning, industry-leading white-label IoT platform, that provides an all-in-one solution for building management systems control and communication. It smart-enables workplaces and makes everyday work life more efficient for occupiers, employees, property owners, and managers. It uses the data present within the building to provide complete 360° control, autonomation, and real-time operational feedback.

SmartTask is an advanced employee scheduling and mobile workforce management solution that enables companies to plan and manage their workers. SmartTask combines intelligent rostering, live monitoring and integrated proof of attendance across both static and mobile teams, making it the ideal tool to improve operational control, enhance customer satisfaction, and support duty of care to staff.

Critical operations demand unwavering reliability. Established in 1958, SMC Group is an innovative, dependable, quality manufacturer of specialist masts, antennas and RF communications equipment built to perform in any environment. Awarded “Best International Manufacturer of the Year” in 2023 by Business Awards UK, SMC Group offers a comprehensive multitude of services designed to meet the unique needs of various industries.

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

SmilePass provides verification as a service to businesses using a combination of biometrics and other secure methods to control the impact of fraud, social engineering and theft. Their software is designed to significantly reduce the impact of social engineering fraud by providing a cost-effective and straightforward way of verifying transactions and requests against a unique biometric ID.

Smoothwall develops intelligent student safeguarding and well-being solutions designed to protect users worldwide. Smoothwall offers the only 100% real-time content web filtering solution with anti-malware, deep packet inspection, anonymous proxy detection and more. They also offer intelligent web filtering, monitoring and security solutions designed to protect users worldwide.