A new era in mobile security, control and alarm technology is here. Control Freq develops GSM intercoms, GSM alarm auto-dialler, Mobile Phone GSM Access GSM control and GSM remote control systems. All systems are Web and App configurable. Control Freq is Cloud ready, 3G ready and 4G ready to supply solutions for any network anywhere in the World.

Control Freq Ltd is a London based, online supplier of GSM control, communication, monitoring and detection systems. The company’s main products are GSM intercoms, GSM alarm diallers, GSM lift emergency phones & PSTN line retrofit to GSM, GSM remote & access control systems & GSM monitoring products and software.

Controlled Access is the leading manufacturer of access control and crowd control systems, providing full height security turnstiles, waist high turnstiles, optical turnstiles and matching ADA gates.

Controlled Solutions Group provide security training solutions to companies in the UK; specialising in security solutions, security training & crowd control. The provision of highly trained, accredited and licensed safety and security personnel to the sports, leisure and entertainment industry remains the ‘core’ business of Controlled Solutions Group.

CornerStone is an independent, international consultancy firm providing range of security services. The company helps organisations protect their people, assets, intellectual property and profits by identifying threats and minimising the risks. CornerStone's consultants have wide range of commercial and security experience and are kept up-to-date with latest developments in Biometrics, Digital Video and Radiological Detection, etc.

Cova Security Gates Ltd have been successfully trading since 1987 and specialise in the design, manufacture, installation, service and maintenance of bi-folding speed gates, sliding cantilevered gates, boom barriers, crash tested road blockers, crash tested rising and static bollards, pedestrian gates and turnstiles.

Crimeshield Manufacturing Ltd is acknowledged as the market leading manufacturer of window and door glazing security in the UK Their security windows and barriers are used by architects, building owners, and superior security services.

Cross-guard Ltd. is the sole UK manufacturer of cold/hot aisle containment solutions, Connexions server caging and partitioning, Ventis server safes and cabinets, bespoke security solutions, including secure cash transfer units and security walling, security grilles, and anti-burglar bars.

Crowdguard provides temporary event security solutions by installing security barrier systems. They also offer installation services for the Surface Guard system which is designed to provide hostile vehicle mitigation and temporary event security for stadiums, festivals, urban squares and VIP visits.

Crown Security Services based in Brimingham offers a range of services, such as manned guarding, CCTV remote monitoring, keyholding & alarm response, mobile security patrols & construction site security. Crown Security Services provide an off-site CCTV monitoring and protection service for commercial, industrial and residential premises through the use of remote digital technology, cameras and motion activated CCTV systems.

CSG Fire & Security has been established over many years to meet the ever-growing demand for installations of fire alarms, CCTV, access control systems, intruder alarms and also gate and barrier systems.

CYFOR Secure is the dedicated cyber security division of CYFOR, specialising in a breadth of proactive and reactive IT security services, with expertise in Digital Forensics and Incident Response (DFIR). We are a trusted provider to SMEs and large enterprises globally, spanning numerous sectors that include manufacturing, legal, engineering, healthcare, finance, and telecommunications.

D-Fence Electronic Fencing and Security Systems Ltd. is an Israeli "Security-by-Technology" company that designs, develops and manufactures the most advanced Perimeter Intrusion Detection Systems (PIDS), based on an exclusive Strain Gauge Sensor technology. This proprietary technology allows us to offer highly aesthetic PIDS based on the “Open-Design” concept, and most importantly, that work with Zero False Alarms.

D.O.G-Sec,is a leading company in the field of Homeland security,Perimeter protection and "Smart Fencing". Providing up to date Perimeter security Solutions: surveillance cameras,video analytics, multi sensor capabilities and smart Fencing ( Intrusion Detection Sensors). All of the solutions above are integrating with our cutting edge state of the art VMS & Command and Control Software. Our systems' transmition method is WiFi,GSM or Fiber Optic.

D.W. Price Security was established in 1998 by the current directors who each have more than 30 years experience within the physical security sector. They are the 3rd generation of the original family business, with roots based in the original glass and glazing industry with the first security installations carried out in the early 1970s.

D&D Security Derby offers fully licensed SIA-approved security guards that are ready to be deployed within hours upon acceptence. It provides approved contractor security services for major companies across the UK. Specialists in static guarding, it offers a cost-effective security service for the protection of UK businesses.

Daifuku Airport Technologies is a solutions provider for airports worldwide. They specialise in airport operations and maintenance, baggage handling, self service technology, automated bag drop, baggage tray systems, tilt tray sorter, mobile inspection Table, early bag storage, hold bag screening, RFID and other solutions.

DAS Technology can design, install and maintain security systems for a wide range of uses from homes, shops and offices to shopping centres, schools and car parks. They provide bespoke security solution that meets your needs, and all completely hassle free. Their nationwide network of engineers is trained to the highest standard in order to install security systems with a professional, efficient and reliable service.

DC Solutions is a CCTV installer based in Luton.

Defence Doors is a Yorkshire based UK steel fabrication company with over 20 years of experience manufacturing flood gates, blast doors and prison doors. The company also offers electronic security, electric locking systems, video and intercom systems, CCTV systems, and perimeter intruder detection systems etc.