DIRAK provides industrial enclosure hardware, developing, manufacturing, and distributing components for rack and enclosure construction. They specialise in latching, hinging and gasketing products which can function either mechanically or electronically.

Direct CCTV and Security Systems Ltd specialises in design, installation and maintenance of best bespoke security systems for commercial and domestic market. Direct CCTV offers CCTV, access control, intruder detection, door entry, biometrics, integrated security, maintenance, and additional services. Robust security solutions are delivered for all types of business, to inspire confidence in protection of business premises and staff.

Direct Security provides Integrated systems, CCTV, access control, door entry, intruder alarm, fire systems, personal attack systems, photo-id, vehicle recognition ANPR, structured cabling, networked systems, asset management, project management, data management, software development, consultancy, and system auditing services. Direct Security is an ISO 9002 quality assured company and NACOSS Gold and Construction Line accredited.

Established in 1982 Direct Security Systems has earned an excellent reputation for providing security products and services in Wolverhampton, Walsall and surrounding areas in West Midlands. The company provides high performance intruder alarms, area detectors for residential, commercial & industrial needs, control panels that react to change, access control systems, card readers & keypads, CCTV & 24 hour monitoring services, fire alarm systems.

Direct Technology UK Ltd is a highly successful national electrical contractor operating across the UK, that cover retail chains, sports venues & stadiums, airports, shopping centres & business centres. The company manage medium & large electrical projects as well as bespoke projects such as security systems, CCTV, access & control, audio visual provisions, networks, fibre optics and much more.

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

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.

Domalarms is a family owned and run company. The company has its head office in Leeds on the outskirts of the city centre. Domalarms deals in all aspects of home, business and commercial security designing, supplying, and installation including burglar alarms, intruder prevention systems, CCTV systems, access control systems, automatic lighting, electrical services, fire alarms, and automated gates and barriers.

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.

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.

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.

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 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.

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.

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.

Dragon Fire & Security Systems is one of South Wales' largest independent fire and intruder alarm installers. The company offers intruder alarm, fire alarm, CCTV, remote monitoring (off-site), automatic gates and barriers, access control and door entry, emergency lighting systems' services. Dragon Fire & Security Systems is approved to all industry's highest recognised standards including NSI (NACOSS GOLD) and BAFEFire Alarm Certification Scheme.

UK's Dragon Security Systems designs, installs and maintains security systems including CCTV surveillance, fire detection, intruder detection, and access control for commercial and domestic use. The company is NSI Gold approved and quality insured to provide the highest standard possible. Dragon Security Systems also schedules regular preventive maintenance checks to both its own installations and those systems installed by other companies.

DS Securities is one of the leading independent security and fire specialists in the UK. The company aims to provide a range of innovative, reliable and dependable security, fire, CCTV, access control, network and IP technology solutions, specifically designed, installed and maintained to highest standards for customer’s individual needs. DS Securities' clients include individual home owners, small businesses and large corporations.

Operating throughout the UK and Europe, DSB provides security for a full range of requirements, including door personnel, retail security and close protection security operatives. They also supply security equipments.

dsc security is the trading name of DSC Alarms Ltd. The company is supplier and installer of security equipments to both Residential and Commercial customers. Based in Crowthorne Berkshire, dsc security is one of the premier privately owned security companies in the Thames Valley specialising in intruder alarms, locks, safes, CCTV & access control.

DSG Distributors is a distributor of IP and analogue surveillance, remote monitoring and automation systems. The company also offers A/V gear, CCTV racks, connectors, video servers and video walls for residential and commercial security.

DSG Systems is a subsidiary company of Bertel O Steen, who is one of the respected companies in Norway. DSG is a specialist provider & systems integrator. The company provides security systems "real-time" network video surveillance, security installations at airports, bomb protection, & security of mobile and fixed plants on land, sea and air. DSG also delivers detection solutions as well as self-service bag drop systems for airports worldwide.

DSSL Group is a specialsits in Closed Circuit Television, Access Control and Integrated Systems. The company expertise in development, installation, maintenance and integration of CCTV, access control (wireless, fibre and hard wired) and perimeter protection systems gained with various organisations.