Door-Stop offers composite door solutions in a completely different way. They are easy to buy, quick to get hold of, and are easy to sell. Today 90% of Door-Stop’s orders are placed using the 1 minute, 5 step online ordering system. They deliver doors nationwide in just 3 days. Their doors come with an ERA cylinder-free lock which is secure. With a traditional mortice key, the door doesn’t need a locking cylinder because the key engages directly.

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.

Doordeck provides mobile access control which embeds with a variety of door access control systems, making it easy for the user to unlock the door from the phone.

The Doorman 24 solution by Visentry is a cost effective Turn-key solution for residential and commercial buildings that do not have a doorman on premises to open the front door and accept deliveries. The Doorman 24 service is implemented via the use of video and audio over the internet and a connection to the Doorman24 Central Station.

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.

Doorsec is a first-class security company that continues to maintain high levels of client satisfaction with many prestigious, high-profile accounts. The company is committed to continual improvement in its systems and the service it provides, which helps to maintain it as a benchmark company for the sector.

Doorware is Ireland’s leading provider of solutions for door systems ranging from large scale commercial projects to smaller domestic installations. Doorware provides its clients with quality products from worldwide leading brands such as Salto, Eclisse and Marcal. The company offers smart chip systems, wire-free networked access control, locking solutions, and other access control services. Doorware also provides clients with technical advice.

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 .

Doris CCTV is one of the fastest-growing companies in the Security industry. They do offer a whole range of IP cameras, Analogue Cameras, DVRs, and NVRs.

DORLET was set up in 1989. From the start, the company focused on producing its own product, developing all of the necessary technology, including hardware and software. Based on access control, the company's systems have evolved over the years to form a comprehensive management platform, DASS. This platform also includes visitor control, presence control, ID cards , integration of other subsystems, among other systems.

DORMA is a globally active supplier of door technology products and systems. The company is the world market leader in door controls, movable walls and automatic door systems. The DORMA Group is subdivided structurally into five divisions: Door Control, Automatic, Glass, Security / Time and Access and Movable Walls. DORMA maintains major production plants in several European countries plus Singapore, Malaysia, China and North and South America.

DORMA Americas is a leading global manufacturer of premium access solutions that enable better buildings. DORMA has earned a widespread reputation for products and services that provide security, safety and convenience around the door.

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.

The new combined Dorset & Wiltshire Fire and Rescue Service came into being on 1 April 2016, and now serves the local authority areas of Bournemouth, Dorset, Poole, Swindon and Wiltshire. They are ‘passionate about changing and saving lives’ – and are excited by the possibilities that are now open to them as a larger Fire and Rescue Service.

Dorset Architectural Ironmongers is one of the leading supplier of architectural ironmongery, fire protection products and associated services to clients in both the public and private sector. Based in Dorset, the company product range including access control, hinges, door closers, locking systems, and fire escape hardware etc. DAI work with all the leading manufacturers to provide an extensive range of top quality products for all projects.

Dortronics is a manufacture of electric locking hardware and controls for the security, hardware, and door control industries.

Dot Hill Systems Corp. is a recognized leader in software and hardware solutions for storing, sharing, protecting and managing data.Dot Hill’s solutions combine storage software with the industry’s most flexible and extensive hardware platform to deliver best-in-class SAN storage solutions with Five 9?s of availability.Dot Hill’s pillars of innovation include software, platforms, and systems, which combine to create advanced SAN storage.

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.

Dotlines is a forward-thinking technology company with a 20-year track record of providing innovative lifestyle solutions across Asia. It is dedicated to enhancing the lives of businesses, homeowners, and communities through cutting-edge technology, connectivity, security, logistics and a strong commitment to social responsibility.

Since 1998, the Dotworkz has been known for producing "professional grade" outdoor extreme climate camera protection solutions, "software ready" NVR machines of all sizes and even hosted services. For over 13 years, Dotworkz has been designing outdoor products to work with all the industry's leading brands of cameras, software, wireless, fiber links.

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.

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.

Dowley Security Systems is a leading provider of turnkey technology integration and electronic security systems. Dowley delivers resilience, embraces preparedness, guarantees continuity, and increases the efficiency of operations for critical infrastructure and commercial markets with a full range of design, installation, service and support solutions.

Doyle Security provide commercial, residential and medical alarm systems, CCTV, access control and safe & lock services and products. Doyle Security is in business to help protect client's from intruders, theft, fire, carbon monoxide gas, and water damage. The company's security solutions comprise: burglary detection, fire protection, video surveillance and secured monitoring.

DSS delivers a wide array of services to protect commercial, public sector, multi-use and critical infrastructure facilities.