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.

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.

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 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 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.

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).

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.

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.

Silvertrac is the provider of real time reporting software solutions. Their mobile-friendly security guard management software provides guard accountability through GPS tracking & real-time reporting, ensuring immediate, on-site accountability, instant alerts of critical issues for fast response, & improved employee performance.

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.

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.

SimpliSafe provides top-notch security systems for homes and offices all over the India. They take full responsibility of all the products sold, no matter which brand it belongs to. They also take accountability for all the products they provide through rigorous R&D, suggesting the customers the best brand in an economic way.

Designed with simplicity in-mind, Simply Work provides a clean and efficient user experience. Their goal is to minimise training requirements and implementation costs using a hybrid service model that assists the customer with go-live in a rapid, yet controlled roll-out. Data integration tools are included in the application infrastructure, so custom requirements can be met with no programming and minimal timeline.

Simpro is the total business management software that empowers trade businesses around the world to improve business efficiency and make smarter decisions with one software that has it all. From job quoting and scheduling to inventory tracking, invoicing, and everything in between, Simpro’s technology solutions and expert support help businesses build, repair, and power their future with complete control over operations.

Sine is a part of Honeywell Connected Enterprise. Thousands of businesses use Sine to enhance safety, security and compliance for visitors, staff and contractors. They provide contractor registration software, visitor management software, facilities management, and identity management software.