Sift is the leader in Digital Trust & Safety, empowering digital disruptors to Fortune 500 companies to unlock new revenue without risk. Sift dynamically prevents fraud and abuse through industry-leading technology and expertise, an unrivaled global data network of 70 billion events per month, and a commitment to long-term customer partnerships.

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.

SightLogix Inc. manufactures the only intelligent video surveillance system designed specifically for use in the outdoor environment.

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 Fire & Security designs, develops, manufactures & distributes a range of specialist fire and security products. Sigma Fire & Security is the latest division of Evac+Chair International. Some of Sigma’s trusted key partners include GfS Germany and Vimpex UK.

Sigma Infosolutions, a TUV Certified ISO Company is a leading provider of customised software solutions worldwide. Sigma Infosolutions specialises in the execution of strategic initiatives for business leaders.

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.

SigmaPoint Technologies Inc. provides end-to-end assembly services for highly complex electronic products within various markets including computer and embedded systems, Telecom RF, homeland security and defense, industrial controls, alternative energy and transportation. The company's executive team has over 75 years of experience in designing, development and manufacturing of electronic circuit card assemblies.

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 OS is a technology company, supported by Ghelamco, which is steadily gaining commercial real estate market share. The company was created to solve the needs of all the building’s business roles: facility managers, tenants, employees, and visitors. Signal OS has a variety of customised products.

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.

Siklu builds Gigabit wireless backhaul solutions and is at the forefront of millimeter wave advances that reduce radio costs, as well as the cost of deployment and operation. Siklu introduces the future of wireless security video networks. The palm-sized system is designed for installation on poles, traffic lights and building sides.

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 Labs is a leading provider of silicon, software and system solutions for the Internet of Things, Internet infrastructure, industrial automation, consumer and automotive markets. The company solve's the electronics industry’s toughest problems, providing customers with significant advantages in performance, energy savings, connectivity and design simplicity.

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.

Silver Sea JSC is a security surveillance equipment provider in Vietnam. The company provides security products from companies like Lilin, Flir, Avigilon, Avigilon and Kocom etc. Silver Sea JSC offers CCTV, fire alarm, supermarket security systems, smart home solutions and access control etc.

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.