Citadel Security BV has grown into a total supplier of security systems for private individuals, shops and companies. They are not only active in Haarlem or Amsterdam, but throughout the Netherlands and even the Benelux.

NW Cabling LLC is a low voltage electrical contractor specialising in system design and engineering. they also implement multi-site deployments and campus environments. Founded in 2010 and headquartered in Spokane WA, NW Cabling has completed projects throughout the Pacific Northwest.

NW Security has a proven record in the design, installation and maintenance of CCTV and network-based security systems. They protect their customers’ people, premises and assets through the use of innovative technology and enhance operational performance by improving business efficiency and business intelligence.

NXGEN Technology AG is a Swiss start-up with a focus on Connected Enterprise, specialising in security, IoT, AI / ML. NXGEN was founded at the beginning of 2019 and launched the GENESIS service at the end of 2019 with a focus on SaaS Alarm & Event Management.

Oakdoor™ Hardware-Enforced Security Solutions provide uncompromising protection to data, safeguard sensitive information, and guard critical networks. With robust security features, seamless integration, and compatibility with existing infrastructure, Oakdoor solutions provide a critical layer of protection against cyber threats – enabling organisations to remain compliant, mitigate risks, and safeguard their valuable assets.

Observables helps security professionals connect, manage, monitor and control a wide range of devices all from one easy-to-use platform. Their AlwaysON Cloud Portal and Multi-Service IOBOT Signal Routers integrate physical, logical, and cyber elements providing remote monitoring, central station reporting, real time control, among other features.

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.

OfficerReports is the most comprehensive and easy-to-use security guard management software platform in the security industry. They help security guard companies of all sizes from around the globe better manage their operations, better service their contracts, and win new business.

OlenCom Electronics is a player in the data & telecommunications field. The company develops, manufactures, and markets a full line of innovative cutting edge solutions for the Global telecoms market. Olencom’s headquarters, R&D center and manufacturing facilities are located in the High-Tech Industrial park of Yokneam, Israel.

Omnicloud is a Mexican company that provides and distributes specialised cloud services. OMNIVIEW stands out among these services, which they describe as a SaaS PSIM platform focused on offering integrated solutions for physical security and IoT in sectors.

OmniClouds optimises, migrates, and supports organisations away from traditional internet connectivity models to modern, cloud-based network infrastructures. They also provide Cloud Migration, Cloud Connectivity, Global & SD WAN Connectivity, Managed Security, Hybrid WAN, Application Awareness Routing, Security Monitoring and much more.

Omnilert offers the broadest array of solutions, spanning prevention, notification, engagement, and incident management, as well as the most comprehensive multi-channel communications. Uniquely, the organisation employs automation and next generation artificial intelligence to expedite emergency response and enable detection and visualisation of critical incidents.

Omnissa, a former VMware business​​, is the only company completely focused on the betterment of the digital workspace experience for both IT teams and employees.

One Ring Networks has quickly grown from a regional alternative access carrier to a large Tier 2 carrier with a national backbone. Their business communications services power local organizations with a host of voice and data solutions including fixed wireless, fiber internet, 4G LTE wireless, managed IT services and hosted PBX.

OneID® is an organisation building trust for a safer online society. It let individuals prove who they are online easily and securely using bank-verified data, making verifying the customers hassle-free.

OneTrust is the fastest-growing company on Inc. 500 and the category-defining enterprise platform to operationalise trust. Their offerings include OneTrust Privacy Management Software, OneTrust DataDiscovery™ AI-powered discovery and classification, OneTrust DataGovernance™ data intelligence software and much more.

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.

The Open Connectivity Foundation (OCF) creates an open source project for connected devices to communicate with each other. OCF provides smart home solutions, business security solutions, healthcare solutions and industrial security.

OpenWorks Engineering is a hi-tech product company developing security and counter-terrorism products. OpenWorks has developed an award-winning and innovative drone capture and autonomous optical detection and tracking technology. The systems offer law enforcement and security forces the capability to protect the people, VIPs, secure facilities, and critical national infrastructure.

Optec specialises in delivering end-to-end cybersecurity solutions and services designed to proactively protect the business. They provide cybersecurity, digital transformation, email security, network security, application security, cloud, infrastructure, remote work, data backup and much more.

OPTIMUM datamanagement solutions GmbH specialises in industrial image processing that combines database management with camera technology. They provide camera-based assistance systems, Smart Klaus which accelerates the processes in industrial companies, makes them more economical and relieves the employees. At the same time it increases quality, productivity and satisfaction of customers and employees.

Orca Security is the cloud security innovation pioneer, provides cloud-wide, workload-deep security and compliance for AWS, Azure, and GCP － without the gaps in coverage, alert fatigue, and operational costs of agents.

OrderWork was built on the recognition that retailers needed to differentiate their brands in an expanding online market. With access to OrderWork's white-label team of service professionals, retailers can offer customers nationwide installation services through OrderWork's Delivery Network.

Orestone Controls offers 24/7 manned protective monitoring service utilising permanent and semi-permanent CCTV and fire detection systems. They also provide door safety services, access control systems, emergency alarm systems, gate automation, fire alarm systems and many more.

OSI Systems provides security and inspection systems, turnkey screening operations, and integrated solutions, all supported by a global service and maintenance network. They also provide specialised electronic components and electronic manufacturing services to their Security and Healthcare divisions.