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.

The Department of Homeland Security has a vital mission: to secure the nation from the many threats we face. This requires the hard work of more than 260,000 employees in jobs that range from aviation and border security to emergency response, from cybersecurity analyst to chemical facility inspector. Its duties are wide-ranging, and our goal is clear - keeping America safe.

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.

DES Systems & Solutions PLC is one of the leading network services company in Ethiopia, providing professional services as well as advanced network and application solutions to customers throughout the country. In addition to offering a comprehensive security assessment, DES Systems & Solutions security specialists can help ensure that security solution is properly designed and implemented.

Designed Security, Inc. (DSI), a Detex Company, has been making quality security products in the U.S.A. for more than 30 years. The company offers a full range of access management products to fit building aesthetics while meeting today’s most demanding security requirements. DSI has developed custom and standard state-of-the-art security and access control solutions for corporate, commercial, government and industrial markets.

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.

Digi Electronic Lock has its history dated back to 1995 and has some 620 employees. The head office and factory is located in Guangzhou, South China. The company offers fingerprint & keypad lock, hotel lock as well as RF card lock.

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.

Direct Trade Supplies supplies consumer units, CCTV, heating, timers, low energy LEDs, lighting, access control systems, fire protection systems & lots more from top manufacturers.

Discount Locks offers quality locks and accessories from major brand products that cover all areas of your home and office including doors, windows, patio doors and garages.

Diversity offers sales and installation of all types of electrical, electronics, telecom, computer hardware & licensed software and other devices, peripherals, accessories, supplies/merchandise, electronic security & surveillance monitoring system & devices. The company also offers lodging/commercial/industrial electronic and mechanical door Locking and access control equipment, fire alarm monitoring system and devices.

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.