Cytix is a cloud vulnerability management platform and a cluster of dedicated pentesters to help identify & resolve vulnerabilities.

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&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.

Dalycom is a complete business communications and IT service provider based in Leicestershire, UK. The company’s services include cloud based IT and telephony services, broadband, calls, lines & mobile, CCTV, wireless networks and support.

Dante provides project management services as well as commercial fire and security systems throughout the UK. The company has mechanical and construction divisions. Dante has achieved the quality standard ISO9001 and environmental standard ISO 14001. The company's specialisms include CCTV, door entry, intruder alarms, fire safety, and PA/VA.

Darkbit is a renowned cloud infrastructure and security solutions firm, based out of Reston, Virginia. They deliver cloud-native security solutions and products for enterprises.

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.

DEFENDERS, Inc. is a USA based security company that provides home security, safety and peace of mind to more than 2 million families in the US. They are focused on installing state-of-the-art security systems and providing post installation services.

Defy is an early-stage venture fund focused on emerging high-potential opportunities. Chasing hype is not our style. Defy.vc value authenticity, and admire the tenacity it takes to turn a daring idea into an enduring company. Defy.vc back extraordinary people capable of changing the status quo. Defy.vc showcases its success, and works hard behind the scenes to amplify it.

Demux Video Services Ltd is a leading forensic multimedia analysis and software company, specialising in the clarification and Demultiplexing of CCTV images and footage as well as audio material.

Design Automator is a SaaS solution for the security systems industry that automates the engineering process, eliminates human error and delivers system wide consistency, whilst saving both time and money.

Detego Global is the company behind award-winning Digital Forensics, Case Management, and Endpoint Monitoring solutions that are trusted by the military, law enforcement teams, intelligence agencies, and enterprises around the world. With the ever-increasing use of digital devices and the corresponding mass of data that are created, solutions have become the preferred choice for rapidly acquiring and analysing.

Device Smart Ltd. have been developing Monitoring and Control Software & Middleware Platforms for over 15 years before cloud, before IOT, before "smart anything" was a buzz word.

DiffusionData is a pioneer in real-time data streaming and messaging solutions. Founded to solve the real-time systems & application connectivity and data distribution challenges experienced by companies worldwide, the company has an international team of business and technology experts. The company’s flagship offering — the Diffusion® Intelligent Data Platform, makes it easy to consume, enrich, and deliver data reliably.

DISH Network is a renowned provider of satellite television, DVR, HD and international programming in the U.S.A They also provide satellite broadband service, IoT, wireless, tv, technology, connectivity, communication, and television services.

DOM focuses on three essential areas of expertise: hardware, software and mechatronics, developing the highest quality mechanical and access control solutions. The product spectrum ranges from practical security solutions for detached houses to modern electronic access control systems for large buildings.

dhf is a not-for-profit trade association for companies associated with Locks & Building Hardware; Doorsets; Industrial Doors & Shutters; Domestic Garage Doors and Automated Gates.