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.

Rafale Enterprises supplies professional security cameras and surveillance equipment, solar street ligths, office built/fit out and high end solutions with cutting edge technology to governments, business owners, commercial and retail clients worldwide. The company offers a complete range of security surveillance units and packages.

Ralarm connects renters to monitored home security from ADT.

Rapstan Engineering (Private) Limited is one of Zimbabwe's electronic security and electrical engineering solutions provider. Their core business is the installation, maintenance and repair of automatic gates, garage doors, traffic booms/barriers, alarms and access control systems, closed-circuit television (CCTV) systems, electric fencing, solar energy & electrical wiring.

RayCom Technologies Limited (RCT), an ICT company incorporated in Ghana. The company provides VOIP solutions, network security, hospitality technology, pbx installations, wired and wireless network and computer/telephone integration etc.

RaySecur Inc. has developed breakthrough imaging technology, based on millimeter waves. Theur MailSecur systems provide real-time, 3D imaging to detect even the smallest threats – a vast improvement over traditional static 2D X-ray scanning.

RBtec provides reliable, effective and cost efficient integrated electronic security solutions suitable for perimeter security fence and intrusion detection projects requiring; perimeter intrusion detection, CCTV, indoor/outdoor security systems and various other perimeter security elements. Visit www.rbtec.com

RDS Electric Security and Communication Systems provides customers with the most reliable systems in burglar, video surveillance and access controls. With these systems customers will have complete control over their systems helping them customize and maintain a system with complete ease of use.

RE:SURE leverages new technology and enhanced electronic communications to provide security solutions that actually stop the crime, rather than record it (traditional CCTV) or raise an alert when its too late (monitored alarm).

ReconEeyez provides high-tech, military standard monitoring for an affordable price, which can be immediately installed anywhere. Their AI technology automatically detects and classifies images on alarm photos using predefined classification categories.

Red Fort was started in 2001 with a mission to provide hi-tech cost effective solutions to satisfy customers' security needs. The company believes Red Fort is a symbol of strength & security, and future forts will stand on foundations of information technology, to be secured. They work with the same ideology to achieve their goal - Dependable security systems integrator.

Redwire is a team of security professionals that have been in the business of providing electronic security for governmental, commercial and residential clients for over 30 years. They provide Verified Intrusion Detection, Video Surveillance, Network Based Access Control, and Fire Monitoring Services.

Security and electrical installers, over 40 yrs experience in the industry, competitive rates, landlord inspections, upgrades and remedial works undertaken, fire alarm service and repair.

Relevant Technologies is a leading solution provider in the field of integrated security and IT, specialised in multiple solutions like CCTV surveillance, fire systems, access control, barrier systems, security devices, safety & security items, hospitality industry, retail ERP, IT infrastructure management, etc.

Reliant Safety currently maintains and monitors over 10,000 cameras across ten states, which support approximately 19,000 residential units. Reliant Safety’s innovative approach to property management and security incorporates both remote and local video monitoring, advanced access control technologies, virtual guards, close collaboration with law enforcement and highly-trained personnel.

Retricom Systems, sl, founded in 2005 for the design, installation, repair and maintenance of safety systems (fire detection and extinguishing, CCTV, intrusion, access control, etc..), process automation, electronics, etc. Retricom Systems, sl is a service which is customer service for the sole purpose of meeting their needs, offering to do the best and most advanced products / systems on the market.

RF Technologies is a provider of safety and security solutions for the healthcare, hospitality, and education markets, leveraging radio frequency identification (RFID) and PinPoint real-time locating system (RTLS) technologies. The company offers remote monitoring, RF consulting, 24/7 technical support by internal staff specialists, and a nationwide service team.

RFI Communications & Security Systems is a diversified multi-systems integrator that has been designing, installing, servicing and monitoring, technology-driven security and fire/life safety solutions for over thirty years. Quality, value and innovation are the rock solid cornerstones of RFI.

RFS Fire and Security design, install, and service high quality electronic Fire and Intruder Security Alarm Systems to Domestic and Commercial Clients. They also specialise in Access Control and CCTV equipment.

Riddletek Solutions is an Indian systems integrator for electronic security systems, biometric time attendance, physical access control, RFID security systems and customised solutions. Riddletek Solutions has its headquarters in Dehradun, India. In addition, the company offers customised video solutions for video surveillance, access control and burglar and fire alarm systems.

RIFL Biometrics is a company for designing and building hardware & software systems for various security applications. Established in Morocco since 2007, which is headquartered in France. Their areas of expertise are mainly access control and time & attendance solutions, and company security through intrusion detection system, CCTV and fire protection systems.

RJV Systems Ltd is a specialised systems integrator and solution provider in the fields of Information Technology, Telecommunication, Technical Security, Power and Energy. The company offers access control solutions, intrusion detection, fire alarms and emergency as well as biometric/identity management solutions.