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.

Siemplify, the independent security orchestration, automation and response (SOAR) provider, is redefining security operations for enterprises and MSSPs worldwide. The Siemplify platform is an intuitive workbench that enables security teams to manage their operations from end to end, respond to cyber threats with speed and precision and get smarter with every analyst interaction.

Sierra Group is a service-focused company specialising in Commercial Construction, Electronic Security, and Facility Services. They operate three independent business units providing unique facility-based trade services to corporate, financial, industrial, municipal, and government institutions.

Sierra provides management consulting, outsourcing and technology services such as eyeLock. Iris recognition from eyeLock provides a range of solutions for identity management. By identifying “In-Motion” and “At-a-Distance”, authentication is similar to that using DNA while removing the false sense of security associated with using RFID cards and PIN numbers.

Siete24 offers nationwide coverage and security schemes designed according to the needs of each client and according to the economic sector to which it belongs. Siete24 poses a 24x7 monitoring of all activities and movements in the different branches through CCTV, alarm monitoring, access control, GPS tracking, home automation, inmotic, sensors and biometrics.

With approx. 4, 800 specialists in their team, SIGE Poland (Sii Poland) is the largest technology consulting, digital transformation, BPO and engineering services vendor in Poland. They provide consulting, advisory, IT and engineering services for enterprises.

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 - integrated systems (Sigma-IS) was established in 1991. The company deals in development, manufacturing, installation and setting-up of access control and management devices, of integrated systems of guard-alarm and fire-alarm, of scheduling and peripheral equipment remote control, and also of local optical fiber networks.

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.

SIGMA Threat Management Associates is a team of experts in behavioural threat assessment and threat management. The company provides threat assessment and violence prevention services to businesses, educational institutions, government agencies, military units, law enforcement and security professionals, and prominent individuals and family offices.

Signal 88 Security NY is a New York based security company that has been providing event security, partol service, corporate security and executive protection for over a decade. Security personnel are well trained and professional and can assure peace of mind.

Signal Sciences is the fastest growing web application security company in the world. Their award-winning next-gen WAF and RASP solution protects 40,000+ applications and APIs with over 2 trillion production requests per month.

Signicat is a provider of electronic identity and electronic signature solutions. Signicat deals with authenticating users, providing electronic signing, identity proofing, and document preservation. Their goal is to enable customers to do business more effectively by delivering great user experiences for the end users and at the same time reduce the risk by using advanced security technology.

Signify is a pioneer in lighting for professionals, consumers and lighting for the Internet of Things. Their energy efficient lighting products, systems and services enable the customers to enjoy a superior quality of light, and make people’s lives safer and more comfortable, businesses more productive and cities more livable.

Silent Partner Technologies™ (SPT™) is the pioneer in RFID asset and inventory management using a variety of radio frequency identification technologies. SPT has consistently combined solid programme development proficiency, expertise in RFID technology, and integration tools to solve asset and inventory management issues for organisations large and small, local and international.

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.

Silva Consultants is an independent security consulting firm that helps businesses and organisations to better manage their security risks, reduce losses, and to provide a safe and secure workplace for employees.

Supply, installation, repair and maintenance of CCTV Cameras, PC-based DVR, digital video recorder, mobile Vehicle DVRs, NVRs. They also supply, install, repair and maintain burglar alarms, fire alarms, automatic gates/garage, biometric/face recognition/ access controls.

SilverShield is a renowned software developer with solutions ensuring robust and thorough screening of visitors and maintenance of visitor records. SilverShield Systems also provides visitor management systems, incident and emergency management systems, events management systems, and other solutions.

Silvus Technologies develops world-class advanced communications technologies that are reshaping the tactical wireless communications landscape. Silvus has developed a versatile datalink that delivers unprecedented throughput, range and robustness to UGV and UAV communication scenarios, from air to ground to sea and everywhere in-between.

Simantec Automation is a global company that represents products and suppliers in the USA, UK, Canada, Brazil and China and their offices are located in Houston, TX, and Santos, SP, Brazil. They distribute and sell products in all of the Americas and also offer marketing services.

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.

SIMON TECHNOLOGIES AE has been offering complete Communication and Security system solutions for over 25 years. Official partner of the largest manufacturers in the world combines technological innovation with comprehensive support.

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.