CyberGuard System Sdn Bhd provides security solutions and specialises in wireless surveillance system and security systems integration. CyberGuard products include a wide range of electronic security surveillance system and solution including wireless security alarm systems, wireless central monitoring security systems, wired alarm systems, digital CCTV surveillance, digital IP video surveillance, and wireless video surveillance.

Cyelcor Ltd offers solutions such as CCTV, Intruder Alarms, Security Smoke Systems, Fire Alarms, Access Control, Video Door Entry Systems, Smart Home Automation, Oil & Gas Telemetry, Systems, Automated Swimming Pool Dosing. The company also provides consultancy services for home and business owners.

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-Ron Group is a leading technology solutions provider that delivers end-to-end solutions to transform its customers' ICT infrastructures. Headquartered in Singapore, the company provides a holistic suite of ICT, Surveillance Products and Services. The company is now the region’s trusted brand for the Security and Surveillance sectors. Their regional network span across Malaysia, Taiwan, Thailand, and China.

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.

Daemen-ICT develops tailor-made ICT solutions and always looks at the end users. The smart use of ICT makes it easy for people to work more effectively and efficiently. They provide everyone with smart ICT solutions that exactly match individual needs.

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.

Dakak integrated systems is one of the most prominent security solutions firms in Egypt, delivering up to date products, providing cunning consultations, tailoring solutions to fit situation at hand for leading corporations and institutions throughout Africa and the Middle East. The company serves has a strong presence in aviation services, public safety, data centres, energy infrastructure and government facilities, among others.

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.

Datapoint Microsystems Ltd is a leading supplier of ICT and Security systems training courses. The company provides professional certificate courses to installers, operators, managers and designers of Closed Circuit Television (CCTV), Network IP, Intruder alarm, Access control, Fire and Burglary alarm systems and all other types of electronic security systems.

Datacomm Express is a leading provider of end to end security technology equipment in Nigeria. The company consults, supplies and installs video surveillance equipments, fire safety and protection equipment, home automation and alarm systems, access control solution including biometric, password control devices.

Datec are solution providers with a strong local market understanding and service presence. Datec has successfully aligned ICT solutions and Business Services implementations across all business verticls in PNG with the rest of the world ranging from network consultancy and remote server management to application development and training.

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.

With a team of specialist communication and security engineers working throughout the Country, Deldata Computers can provide your business with a surveillance maintenance service plan that best suits your business needs and requirements.

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.

Delos is a leading international manufacturer of products for access control and security systems serving OEM customers as well as selected distribution partners. The company provide high-quality products such as proximity reader, access controller, turnstiles, optical channel, bollards, parking barrier and guidance.

Delta One Security has built a reputation on helping customers meet their security goals through ingenuity and service. They serve homeowners, and all types of businesses throughout South Africa.

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.