National Security Resources (NSR) is the most advanced "Facial Recognition" solution company in the world. Powered by its patented "HNET" technology, which utilises Quantum Computing and Physics, their technology can scale to hundreds of millions of faces and compress these images into an "8k" template.

National Sheriffs'​ Association headquarters is located in Alexandria, Virginia and offers training, information, court security services, jail information and other law enforcement services to sheriffs, deputies, and others throughout the nation. NSA has worked to forge cooperative relationships with local, state, and federal criminal justice professionals across the nation to network and share information about homeland security programs.

As the European pioneer in naval defence, Naval Group uses its extraordinary know-how, unique industrial resources and capacity to arrange innovative strategic partnerships to meet its customers’ requirements. As a system-integrator and prime contractor, the group designs, builds and supports, deconstructs and dismantles submarines and surface ships. It also supplies services to shipyards and naval bases.

NAVBLUE is a services company, wholly owned by Airbus, dedicated to Flight Operations & Air Traffic Management Solutions. Through digital & collaborative innovation, NAVBLUE's passionate & customer-focused team develops solutions to enhance the safety and efficiency of air transport.

With over 40 years of heritage in electronic manufacturing services, NEOTech focuses on low-medium volume/high-mix, high-complexity products primarily in the defence/aerospace, industrial and medical device design, and manufacturing field. Their business is all about converting innovative product technology into state-of-the-art engineered products.

Net IT Matrix provides services in the field of Security & Surveillance,offering turnkey solutions for security infrastructure. The services provided include: Security audit and evaluation. Preparation and implementation of physical security plan. Design and implementation of Surveillance solutions. CCTV system integration with the existing setup, if any. Setting up of Control room. Structured cabling required for the whole setup.

Netradyne has established technology innovation centres in both San Diego, California and Bangalore, India. In both locales, its teams have been busy creating a groundbreaking artificial intelligence (AI) platform to disrupt commercial vehicle and driver analytics. Netradyne is the first commercial vehicle technology provider to combine AI with video to detect, reason and determine causality of events.

Netwrix makes data security easy. Since 2006, Netwrix solutions have been simplifying the lives of security professionals by enabling them to identify and protect sensitive data to reduce the risk of a breach, and to detect, respond to, and recover from attacks, limiting their impact.

Newland Systems LLC provides unparalleled robust, cost effective, security solutions for Government (Local / State / Federal), law enforcement, healthcare, education, transportation, industrial, commercial and retail sectors. The company possesses vast experience in designing, installing, servicing, and maintaining electronic security technologies such as video surveillance, door access control, intrusion detection, and intercom communication.

Nexi has the scale, capabilities, and proximity to provide the simplest, fastest, and safest payment solutions to People, Businesses, and Financial Institutions. It helps customers pay and accept digital payments through a complete and personalised range of simple, intuitive, and secure solutions.

Niometrics is a network analytics company that provides solutions for Communications Service Providers (CSPs) to develop strategies and decisions for new digital businesses, customer experience management, and network planning and optimisation.

Noble Fox Security is an acclaimed firm of security professionals with a reputation for both effective security solutions and the use of innovative technology. The company specialises in providing armed and unarmed security guard services for banking ATM technician escorts, corporate building security, residential complexes, healthcare facilities, construction sites, HOA's, retail venues, automotive dealerships, weddings, and event security.

Nodnett, is the Norwegian critical communication network, owned and managed by the Norwegian Directorate for Civil Protection (DSB). Approximately 2100 TETRA base stations secure 86% area coverage and close to 100% population coverage. Nødnett became nationwide in 2015, and the network represents a significant improvement of public protection and preparedness. Nødnett has approximately 60.000 users, including three emergency agencies and others.

Northcott Global Solutions is the new generation of International Emergency Response, tracking, travel management and remote logistics solutions company. The only dedicated medical assistance, security and point of incident evacuation provider designed to meet modern, corporate travel patterns.

NTK International Corporation is a Tokyo-based globally renowned provider of aerospace and aviation defence systems. This Japanese security and defence company provides aerial surveillance systems, radars, drones and defence solutions.

Ntrepid Corporation develops technologies that solve operational challenges in the areas of Internet operations, information management, analytics, linguistics, and tracking.

The mission is to protect consumers' digital identity and put people back in control by limiting the financial and reputational impact of having their smartphones stolen. The perfect defence is an illusion, so when things go wrong, Nuke From Orbit is ready to lock down digital identities quickly, efficiently, and with a minimum of fuss.

Nullcon was conceived from null – The Open Security Community and the largest active security community in India. Nullcon is an extensive platform for the exchange of information about zero-day vulnerabilities, latest attack vectors, and other cyber threats. Here, security researchers and experts from various fields discuss information security, along with showcasing multiple offensive and defensive security technologies.

Numerica deploys advanced technology solving some of the country’s greatest defence challenges in the areas of air, missile and space defence. Founded in 1996 in Fort Collins, Colorado, the company’s technologies deliver precision domain awareness in space and advanced surveillance capabilities for critical air defence missions.

Nurjana Technologies is a niche player with a global reach providing innovative products and systems solutions for the defence and aerospace industries. They design and develop state of the art system solutions integrating remote sensing technologies, such as optics, radars and telemetry, to deliver real time expert systems in support of the human decision process.

O' Rourke Security Systems supply and install the latest advanced systems including intruder alarms, smoke alarms, CCTV, access control systems, gate automation etc. Based in Leitrim, the company offers high quality installations at competitive rates. O' Rourke Security System offers services to both domestic as well as commercial sectors.

OCEM Airfield Technology is a pioneer in technologies that help airports handle more aircraft, safely and efficiently, from approach to departure. They design, manufacture and install airfield lighting systems. Their technology solutions include Airfield Technology, Energy Distribution, Airfield Ground Lighting, LED, and Airfield Ground Lighting Control & Monitoring Systems.

OCTOPUS is an advanced, cloud-enabled Physical Security Information Management (PSIM) system and mobile application offering customer solutions for a variety of vertical markets. The OCTOPUS system helps organisations across the globe protect people, information, and assets. The solutions offered by the system includes PSIM Command & Control, Crisis Management, Cyber Security Event Management, Visitor Management, Safety Management, etc.

Founded in 2013, OffSite Vision Holdings, Inc. offers real-time security and safety solutions and works with companies who are looking to protect their employees, assets and intellectual properties in various vertical markets including commercial enterprises, federal and state government, utilities, pharmaceutical, and schools. OffSite Vision helps companies and emergency responders “see what cannot be seen” and quickly identifies a situation.

OnFocus AI specialises in the end-to-end implementation of Artificial Intelligence (AI) across IT infrastructure. From conceptual design to full-scale development and ongoing maintenance, they empower organisations to seamlessly integrate AI technologies into their IT ecosystems. OnFocus Artificial Intelligence specialises in offering end-to-end solutions for artificial intelligence (AI) integration within networking environments.

Onyx Electrotech is a leading firm for distributing electronic security devices like CCTV, Networking equipment, EPABX, etc.!

Opem Security is a pioneer, London based, security systems provider. They specialise in delivering the design installation, monitoring, and maintenance for CCTV and access control, as well as an offering out-of-hours concierge support and facilities management.