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 Connectivity deals in several lines of sectors like - telecommunications, security, transportation, aviation, facility management, automotive, civil defense and healthcare. Sigma Connectivity works mainly into wireless technologies and adoption of advanced R&D and component usage coming from the mobile device industry.

Sigma Designs offers the Z-Wave protocol, an interoperable wireless RF-based communications technology designed for control and status reading applications in residential and light commercial environments. Z-Wave delivers reliable wireless networking at a fraction of the cost of other similar technologies, by focusing on narrow bandwidth applications and substituting costly hardware with innovative software solutions.

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 Infocom is the Authorised dealer for Panasonic range of products and based at Coimbatore, Tamilnadu, India. Sigma Infocom has been catering to the needs of various clienteles for over a decade, founded by a visionary Mr. Venkatesh who has an experience of about 12 years in the field of networking and Security products and had been working with BPL Telecom.

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 Security System is well known for offering high quality products, technical supports & advisory services for professional CCTV surveillance solutions. The company is part of the Latin American Association Security (ALAS), the leading security organisation in South America and the Caribbean. Sigma offers networking, telecommunications, video surveillance systems IP & analogue technology. The company is an authorised distributor of TeleEye.

Sigma Surveillance is a market leader in integrated security services with thousands and thousands of devices installed per year. The company's solutions include alarm & event monitoring, perimeter protection, intercom, phone tapping, VOIP, video analytics, IT systems and IP video surveillance, among others.

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 Communications Ltd is a part of TeleEye Group founded in 1994. Its engaged in the development, sales and marketing of a full range of hi-tech CCTV and digital video surveillance equipment. The Group’s Quality Management System is ISO 9001:2008 certified and is committed to continuous improvement on product quality and customer service.

Signal Dynamic is a UK-based alarm signalling technology manufacturer and managed network provider serving the fire and physical security industry. Next-Generation Intruder & Fire Alarm Signalling, covering all Single Path (SP1-SP6) and Dual Path (DP1-4) performance grades with various comms options including LTE, Ethernet and Wifi.

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.

Signal Securities Ltd is a specialist in security alarms, installation and maintenance. The company has been providing security solutions to both domestic and commercial clients for over 20 years. Signal Securities Ltd. services range from security alarms, alarm systems, CCTV security systems, burglar alarms, access control, and fire alarms.

Signal65 provides holistic, integrated technical marketing capabilities to our customers. With modern performance and validation labs across datacenter, edge, and client segments, we build data-driven tools and assets to showcase material benefits of the customers products and solutions.

Signet Technologies was established to leverage the decades of experience of its founders and key managers into a single performance-oriented, independent resource for security and IT professionals. We are a true electronic security systems integrator and are uniquely able to provide sound system/technology recommendations to our customers and and clients that are based only on objective, unbiased analyses.

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.