Diamond Security Systems (UK) Ltd is a specialist CCTV design, installation and maintenance company.

Didactum® Security GmbH offers intelligent monitoring solutions for the Environmental and IT Monitoring. The field-proven monitoring hardware is used in many businesses and institutions. Through video surveillance and access control systems the access to sensitive facilities and rooms can be centrally monitored and controlled.

Digi Security Systems is a division of RAE Corporation based in Oklahoma. Digi designs, builds and installs custom Video Surveillance, Electronic Access Control, Intrusion Detection, Burglar & Fire solutions

Digi-Key Corporation is one of the fastest growing distributors of electronic components in the world. The company has been committed to offering the broadest selection of in-stock electronic components including access control systems, as well as providing the best service possible to its customers, aiding engineers through the entire design process, from Prototype to Production.

Digital CCTV and electronics distributor and install professional security equipment for your home, office, or business such as digital video recorders (DVRs), remote monitoring systems, professional grade CCTV cameras, IP cameras, biometric time and attendance systems, proximity and smart card access control systems, magnetic locks, burglar and perimeter alarm panels and accessories, IP based control systems, and other electronic items.

Digital Factors is the largest value added distributor for the past 25 years in the Identity and Access Management space in MENA region and India. DFS specialises in providing high-quality System Integration solutions equipped with a complete range of business offerings like Enterprise Asset Tracking and Security, Cashless Payments, Credential Management, Physical and logical access security system.

Digital Factors are the best Distributors of ID Card Printers in Dubai, United Arab Emirates with strategic partners across Middle East & Africa region. Digital Factors specializes in providing high-quality System Integration solutions equipped with a complete range of business offerings like ID Card Issuance, Access control systems, Time & Attendance systems, Visitor Management systems, RFID solutions & more. For more info https://www.dfsme.ae/

Q-See & Digital Peripheral Solutions, Inc specialise in surveillance equipment and security solutions for home and business. Their products are distinguished by their competitive prices, high quality, breadth and depth of product offerings, and ease of installation and use. DPSI is headquartered in Anaheim, California, and has enjoyed a strong track record of success as a leading CCTV manufacturer.

DIGITAL SECURITY SYSTEMS is the largest importer and distributor of electronic security systems in Bolivia. DSS imports and distributes security equipments, parts, software and accessories, monitoring and surveillance systems, burglar alarm systems, fire alarm systems, access control and attendance, Automation, video intercoms, electric fences, radio communication, etc. to all Bolivia.

Digital Supply International is a worldwide distributor of access, photo id and security products. DSI supplies a wide variety of quality ID, access, and security products from the top brands including Datacard, ExchangeIT, Fargo, HID, Magicard, Nisca, and others.

DWG is the United States' leading custom electronics, alarm and security wholesale distributor, offering a full line of video surveillance, access control, intrusion, sound, fire, home automation, and data connectivity products. The company supplies full line of quality products strictly to security, information technology (IT), fire, audio-video (AV) and electrical professionals throughout the United States.

Distology are an award-winning cloud security distributor bringing a wealth of experience, extensive knowledge, strong relationships with mutual trust and respect across a huge breadth of partners covering the UK, Ireland and Benelux.

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.

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.

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.

Door Entry Direct Ltd specialises in the distribution of door entry systems of proven quality. The team at Door Entry Direct Ltd have over 25 years experience in door entry phone intercom systems.

Dopoint is one of leading supplier for totally display solution including TFT LCD Panel distribution. The company is franchise of LP-Philips,Samsung,Optrex,Mitsubishi,Sharp TFT LCD Panel with Strong R&D and Marketing of VHD LCDs .

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.

Dot Origin Ltd. is a leading European provider of products and solutions in the field of smart card technology. Dot Origin distributes smart card, RFID and NFC solutions from vendors including ACS, Gemalto, HID, Identive and NXP. Headquartered in the UK with US subsidiary, the company has been operating successfully in this market for over 10 years, and has a wealth of knowledge and experience which is used offer comprehensive technical support.

Double D Security Solutions LLC, sell, install, service and also replace a wide range of security-related products such as locks, deadbolts, panic hardware, architectural hardware, and commercial doors and frames. The company is based out of Rhode Island.