Established in 2005, Cultris Security Systems Inc. is a full-service fire, security, access control, video and communications company. They specialise in intrusion detection, access control, and video surveillance systems for commercial and residential customers.

Cureoscity, is an independent business owned by Grosvenor Hill Ventures, Savills' proptech investment subsidiary. Cureoscity’s vision is to bring people and their spaces closer using technology. Cureoscity provides occupier, building and property managers with effective tools for core operational processes through web portal.

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.

CyNam is a Community Interest Company based in Cheltenham, the cradle of UK cyber innovation. The goal of CyNam is to bring together the best technology minds from local SME’s and Startups to fully harness the rich cyber security ecosystem that flourishes around Cheltenham, the home of the National Technical Authority for Information Security, GCHQ.

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.

Dardan Security’s smart security solutions go beyond safeguarding buildings, property and staff. It combines the best in technology, mobile services and physical guarding to protect the most valuable asset of all: reputation. Dardan Security has enjoyed strong organic growth by partnering with only quality clients who wish to join it on its journey.

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.

Dassault Aviation is a French aerospace, defence equipment and security systems company that shapes the future by designing and building military aircraft, business jets and space systems. They expertise as a manufacturer of both military aircraft and business jets. Creator of more than 100 prototypes in the last century, with over 10,000 aircraft delivered to 90 countries.

Datastor integrate the best in proprietary equipment and software products to provide not only the optimum solutions to their clients individual needs but also one which communicates seamlessly with other key applications.

DAVANTIS Technologies was founded in 2005 and the company’s focus on video analytics program writing and software development makes it unique in video security.

DC Solutions is a CCTV installer based in Luton.

de Jong SICHERHEIT & IT GmbH is an innovative system house for security, information and network technology and develops, among other things, intelligent solutions for hygienic access to buildings and rooms.

With more than 100,000 professionals, Deloitte provides audit and assurance, tax, consulting, and risk and financial advisory services to a broad cross-section of the largest corporations and governmental agencies.

Denning Electronics has solved big communications, protection, and surveillance problems by providing sales and technical support to distributors, security system integrators, engineering design firms, architects, and system users. Their specialties include outdoor intrusion detection, video and audio surveillance, video/audio/data networks and transmission, access control, and ballistic/blast/chemical/acoustic barriers.

Department for Energy Security and Net Zero (DESNZ) is focused on the energy portfolio from the former Department for Business, Energy and Industrial Strategy (BEIS), in the United Kingdom (UK) government.

DeterTech is an award-winning risk management company that uses proprietary technology-based solutions to deliver material cost savings for clients operating nationally in the infrastructure, construction, vacant property, and other sectors, across a range of security products and services.

Through their 24/7 Security Operations Centre, DigitalXRAID delivers cyber security strategies to organisations that enhance the security posture and reduce the risk, cost, and reputational damage of a breach.

Domo Tactical Communications Broadcast is a global MNC engaged in the development, delivery and support of high-tech video surveillance, IP Mesh, Covert Audio and Video, integrated surveillance, maritime security and robotics solutions.

DS Security is a pioneer UK Security company providing Security Services throughout the United Kingdom. Their security camera systems, access control and asset protection solutions provide a real deterrent and the peace of mind having a full record of any event or problem if needed.

Dynamark Monitoring, Inc.'s mission is to save lives and protect assets. To achieve this goal, they are always seeking to improve their technology, invest in their people, and strengthen the relationships with their customers. They have been protecting people and assets nationwide since 1972, and they are determined to change the alarm monitoring industry for the better.

ECHO is an alarm transfer service provider facilitating greater effectiveness in police response to emergency alarms. It’s fully automated electronic alarm transmission service between alarm receiving centres (ARCs) and the police means when ARCs identify and verify an alarm from a monitored installation the alarm signal can be transferred to the police control room in an instant via ECHO.

Edwards Electronic Systems, Inc. design, inspect, install and service life safety and security systems, including fire alarm systems, security systems, nurse calls, CCTV, area rescue, card access and sound intercom systems.

EET Group is a value adding niche IT distributor, providing suppliers and customers with expert industry knowledge, intelligent logistics solutions, unique sales service and smart marketing tools.

ECHO operates to fullfil Bluelight Services interest in speeding up the police response to verified alarm activations through the use of digital automated alarm transmission technology. Its digital communications hub provides an automatic transfer to police control rooms of confirmed intruder and hold-up alarm activations, faster alarm verification, accurate incident information, and automated event incident acknowledgment.

Elgato is a pioneer in audio-visual technology for the rapidly evolving workspace. From conference rooms to home offices, their video, sound and lighting equipment brings people together, and their productivity tools make workflows smarter. Powered by decades of expertise in hardware and software design, they create intelligent solutions for professionals in business, education, healthcare, hospitality, entertainment, and countless other sectors.

Elite Interactive Solutions (Elite ISI) uses remote guarding to help prevent active shooters, vandalism, theft and loitering with real time monitoring and priority response. Their trained specialists offer remote video surveillance and provide onsite forensic analysis of properties and a comprehensive assessment for reviewing.