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.

Dedicated Micros Inc. is an technology and video surveillance industry company. It provides tailored high-end secure IP video solutions, with consultancy, for clients that demand systems that deliver great effectiveness, reliability and return on investment.

- Founded in 2009, Deep Secure is privately owned UK-based security software solutions firm. Services offered include Content Threat Removal, Content Transform, Policy Enforcement, Cyber Security, Data Security, Email Content Security, Web Content Security, Portal Protection, and Deep Content Inspection.

Deepak CCTV Solutions a system integrator in Chirala, Ongole, India. They install all types of CCTV camera, IP camera, access control, and other security systems.

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.

Defender was founded in the year 2000. They manufacture fire suppression solutions. They are now established in around the world to bring the best kitchen suppression system in every kitchen. Their product is Certified LPCB.

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.

Delaney Hardware is a renowned provider of premium builder hardware for residential homes, multi-family buildings, and commercial projects. As part of the Sargent and Greenleaf (S&G) family of brands, Delaney offers a full portfolio of hardware including door hardware, digital locks, barn door hardware, bath accessories, commercial hardware, trim hardware, steel doors and frames.

Delfin Automation Systems offers lighting automation, safety & security systems, as well as multi room video/audio distribution. The company's Control4® Door Station delivers full-motion video intercom and the fidelity of wideband audio intercom for crystal-clear communications and video security throughout a home or business.

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.

Delopt is a provider of human traffic analysis solutions includimg people counting systems, footfall counters.etc. It also provides video analytics & surveillance system for commercial buildings & private organisations.

Delta Audio-Visual Security is a full-service, electronic systems integration firm. They provide complete Design and Engineering Services, Installation, Documentation and Customer Training for high-tech audio, video, control systems, digital signage, and unified communication.

Delta Group is the world's largest provider of switching power supplies and DC brushless fans, as well as a major source for power management solutions, components, visual displays, industrial automation, networking products, and renewable energy solutions.

Delvitech designs, manufactures and supplies a sustainable AI-based technological solution for the 3D automated optical inspection of assembled printed circuit boards.

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.

Denso Wave is a globally renowned company in the development, manufacture and sales of instruments, including automatic recognition, industrial robots, programmable controllers and associated systems.

Derik Group of companies, based at Nagercoil, Tamil Nadu, India, was set up with the objective of providing its customers quality service as per their needs. Derik has enjoyed an impressive record of consistent growth and superior performance. They owe their success to an uncompromising commitment to their futuristic and professional attitude.

DeskCamera is a software application that, once installed, turns a PC into a virtual ONVIF IP camera, enabling users to stream their PC desktop, webcam feed, audio, and other media from the computer to any VMS or NVR system using the RTSP and ONVIF protocols. The software can be used in cash terminals, banks, supermarkets, certification centers, SCADA terminals, and any industry that uses a PC as a point of service or information.

Detection Technology is a global provider of X-ray imaging solutions for medical, security and industrial applications. Their product portfolio ranges from photo-diodes to complete detector systems with ASICs, electronics, mechanics and software.

Detrios designs, delivers and supports integrated access control and business system solutions to meet the toughest challenges.

DevelopIntelligence provides technical training for software developers and related talent in more than 300 subject areas. They help enterprise organisations onboard, upskill and reskill tech talent with programmes customised to the stack, culture, and goals.

Deveryware is the French expert in investigation technologies and services for global security. The group’s offerings encompass legal and digital investigation, real-time geo-localisation platforms, cyber security, combatting fraud, crisis management and emergency communications. At the service of companies and states, they offer a complete range of solutions for the security of goods and people.

Incepted in the year 2017, DevRAy are manufacturing a world-class range of CCTV Cameras. They are also proficient in bringing out a wide range of Wireless Ip Cameras, Dome Camera and, Bullet Camera & Switches etc.