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.

Davis Mergers & Acquisitions Group, aka, The "Graybeards," is the leading Mergers & Acquisitions firm in the Alarm and Integration industry. They've guided hundreds of alarm company owners to successful sales to the right buyers for over 30 years. Founder and owner, Ron Davis, is a well-known and popular speaker, educator and author throughout the industry.

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.

Definitive Electrical supplies, installs and services many types of security system; from small residential to large commercial and warehousing systems. Ness & Hills have systems to suit any installation and budget. All alarm systems have easy-to-use touch screen keypads, battery backed up operation and back to base monitoring abilities. Other options include radio detectors, door sensors and glass break sensors.

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.

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.

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.

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.

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.

CCTV Surveillance, biometric Time-Attendance & access control,PA Solution,VDPs and MVDPs,intruder & burglar alarms, home & gate automation, fire alarm, VoIP solution,FTTH,perimeter mapping,wireless networking,metal detectors,financial solution & structure networking,gateway,UTM,load balance,AAA authentication gateway,PTP connectivity, PTM connectivity,genuine software & licensing(OEM /MOLP,Server &Client solution, Educational ERP etc.

The Digital RF offers two unique comprehensive detection systems for entrance security control. These systems offer of a number of automatic inspection and detection processes which enable the identification of suspect vehicles which may be equipped with I.E.D’s and Magnetic Bombs or Tracking Devices.

Digital Systems was founded in 1985 by a group of diversified, experienced, techno-commercial experts of electronics and electrical fields. Its focus is basically on fulfilling the customers’ security objectives, and its solutions.

Diyar United has been in the business of providing innovative Information Technology solutions, products, and services in Kuwait. Based on that solid foundation, Diyar has emerged to provide innovative solutions in the Middle East Region. In addition, it has invested in providing industry-specific solutions for the Government, e-Government, Homeland Security, Oil Industry, Telecom Industry, Transportation, and Health sector.

DLI Systems L.L.C provides security system installations through an in-depth understanding of organisational security structure and vast experience in the design and installation of security systems. The product range includes biometric products, security cameras for surveillance, gate barrier systems, door locks, magnetic and electric locking systems for doors, intrusion detection systems, and fire alarms.

Dailianxu Engineering Co.,Ltd is a powerful and Hi-tech company which specialises in research and development (R&D), manufacturing, marketing service of CCTV cameras, NVR, CCTV video fiber converters etc.

DOM-UK Ltd. focuses on developing and offering high quality mechanical and access control solutions for residential and commercial applications. They provide smart access control, mechanical and digital locking solutions, including locks, lockcases, digital handles and cylinders, wall readers and terminals, trapped key interlocking systems and anti-tilt systems.

DOMOFERM essentially consists of the four production companies BOS (Emsdetten, DE), BBE (Brilon, DE), HSE (Humpolec, CZ) and Domoferm (Gänserndorf, AT) as well as the five sales companies in Russia, Poland, Hungary, Croatia and the Netherlands and is one of the leading European suppliers in the fields of steel doors, fire protection doors and frames.

Established in 1997, Door Controls Direct is a UK specialist online supplier of electromagnetic door closers and door control equipment with access to thousands of door hardware products. It also supplies digital locks, access control, electric locking, power supplies, and automatic door operators, as well as door hardware and fire escape hardware for buildings to comply with fire safety and security regulations.

DoorBird IP Video door stations are the pioneer when it comes to innovative technology and design. Because of its specially developed encoding, packaging, and transport technology, only 450 KBit/sec are needed for excellent audio and video quality. DoorBird works reliably even if a smart device has only a moderate internet connection.

Doorport provides modular advance system which allows residents, managers and visitors to unlock a building entrance using only their smartphone. With their simple smart access solution, residents can seamlessly enter their own home, invite guests, grant access to recurring visitors, and manage deliveries all from their mobile device.

Dorma and Kaba are now Dormakaba. They offer products, solutions and services for secure access to buildings and rooms – now all from a single source. They have over 150 years of experience, and stand for security, sustainability and reliability.

DSS is a trusted intercom and surveillance company specializing in repairs, upgrades, and maintenance of all types of intercom systems. Whether it's an old or modern setup, they have the expertise to restore full functionality quickly and efficiently. Their skilled technicians are experienced with a wide range of systems, ensuring reliable service every time.