Quantum was established in 1993 and handles all aspects of fire alarm, CCTV and security system installations from design through to commissioning, and offer a comprehensive upgrade and maintenance service. Quantum also offers a consultation and design service for audiovisual projects such as presentation and training rooms, distributed TV and video conferencing.

Quarters Hardware, Inc. is a renowned US-based provider of security entrances, doors and door hardware and software solutions, based out of Woburn, Massachusetts, USA.

Quest Fire & Security Provides homes and business with tailor made security systems that include burglar alarms, CCTV systems, wireless burglar alarms, fire alarm systems, in addition to alarm maintenance, intruder alarms, fire extinguishers and alarm monitoring.

Quick Technologies, LLC, has been in business since 2011, providing security systems, surveillance cameras and access controls.

Moog Sensor and Surveillance Systems’ Sector, a member in the Space and Defense Group, is comprised of four strategic acquisitions. The acquired companies were formally known as QuickSet International, Videolarm, Inc, Pieper GMBH and Knox Video. Moog designs and produces high-quality, scalable physical-security and process monitoring solutions for extreme environments in areas of asset protection, threat intervention & border protection.

The Quod Orbis Continuous Controls Monitoring (CCM) platform allows users to see and understand security, compliance, and risk posture in near real-time. Its managed platform offers continuous monitoring and reporting of control effectiveness, metric performance and compliance readiness.

Quorum Cyber is one of the fastest-growing cyber security companies, protecting over 400 customers across four continents. they deliver tailored, threat-led cyber security services that empower organisations to stay ahead of attackers, align security with business goals, and thrive in an unpredictable digital world.

Quside designs and manufactures innovative quantum technologies for all connected devices. Using their proprietary quantum random number generator, they operate with key players in different markets to provide tailor-made solutions enhancing security across any device.

R&D Security offers a comprehensive line of security and life safety control panels for residential and commercial applications. The company can easily install hardwired, wireless and hybrid panels in new construction or retrofit applications. The product range includes security panels, security/fire panels, and life safety systems that can provide help to individuals in emergency situations.

Baes in Germany, R-Kom GmbH & Co. KG offers customised and innovative telecom solutions. As a midsize company, R-Kom GmbH & Co. KG offers quick decision-making competence and personal counseling.

r-tec IT Security has specialised in IT security for over 25 years. The focus is on the design and operation of IT security solutions, the early detection of security incidents and the defence against cyber attacks in IT, OT and IoT environments.

R.G.A. offers complete consulting services for both commercial and residential clients throughout the U.S. The company specialises in services for Absentee Owners, Builders & Contractors, Apartment Managers and Homeowners nationwide. R.G.A. Security provides quality intrusion, fire, leak detection, carbon monoxide detection & 24/7 monitoring solutions.

R.J. Coleman provides installation of intruder alarm and security lighting, and maintenance of burglar alarm. The company operate out of their head office in Scunthorpe on major construction programmes across the UK. R.J. Coleman client base in varies including commercial factories, shops, agricultural, public houses, nightclubs, local government and domestic clients.

RAA provides high-end 24/7 local monitoring and quality equipment to over 18,000 South Australian homes. RAA is known for providing 4G wireless monitored systems for residential complexes and smart homes. They also provide CCTV security systems, keychain remote controls, wireless repeaters, smoke detectors, door and window sensors.

Established in 1998, Racam Security & Communications Ltd. specialises in the design, supply, installation, commissioning and maintenance of many types of security and communications systems. Racam Security & Communications' systems range from domestic intruder alarm systems to large public space CCTV systems and include police, local authorities, casinos and defence contracts.

RACOM specialises in phone systems, pagers, radios and voice recorders to warning lights and sirens, CCTV. Use of video is on the rise throughout the public and private sectors and has a variety of uses for security, monitoring and surveillance. RACOM security systems helps safeguards schools, hospitals, tower sites and government buildings.

Racomtel Communications is a leading embedded traffic and security surveillance solution provider. Racomtel has a long lasting and rich experience in speed monitoring. The company has installed 45,000 cameras delivered to more than 60 countries. Racomtel also deliver Live streaming Video from any where in Accra(Ghana) to United States of America in Washington DC metropolitan area.

Radar Security offers the highest quality of integrated security systems on the market today. They provide outstanding service to customers and assist them in achieving their goals.

Radclyffe Global Security (RGS) is a security systems installer in Dubai. The company provides IP systems, integrated security, access control, active number plate recognition, intruder detection, perimeter detection, thermal imaging, network infrastructure, command and control, security management systems, digital signage and audio visual systems installations for shopping centres, hospitality, oil/gas and communications etc.

Radiant Security is an autonomous SecOps platform that automates security operations using machine learning and AI to triage and investigate incidents with consistency, accuracy, and scale only achievable via software. Deployed in minutes via API, Radiant Security provides rapid time to value and immediately reduces analyst workloads by as much as 95%.

Radio Comm Security Solutions is one of the fastest growing company in the field of providing wireless (Trunking Radios) and security related products such as Motorola Hand Held Set, Base Mobile, Repeater, CCTV cameras, vehicle tracking systems, door frame metal detector, X-ray scanner, night vision devices and search lights etc.

Radio Data Networks has established itself as the UK's largest provider of licenced radio links and smart sensors for applications such as sewer monitoring where it currently delivers over 200-million messages per annum over its Ofcom licenced band that covers the whole of the UK from Northern Ireland right down the to Channel Islands of Jersey and Guernsey.

Raidocontact Ltd is a manufacturer and installer of specialist security and communication systems. Radiocontact's client base includes airports, banks, government establishments, hospitals and railways. The company manufactures closed circuit television, house security systems and specialised fabrication of panels as well as controls.

Formed in 2004, Radius Security Systems Ltd is a North West security expert and provider of door supervision and event security. Radius Security Systems Ltd covers a wide range of areas throughout the North West and Yorkshire. Radius Security Ltd holds SIA approved contractor status for the provision of Door Supervision. Radius Security Systems operates mainly in the commercial, industrial and public sectors of London and the South East.

Radlink Communications is a Western Australian supplier, installer, servicer and maintainer of professional two way radio communication systems and wireless data communication systems.