Direct Protect Security & Surveillance provides state-of-the-art security systems for residential and commercial buildings. They also offer advanced technology video surveillance capabilities, burglary and fire system notifications, two-way voice technology and medical alert monitoring solutions.

Direct Recruiters Inc., specialises in recruiting employment candidates and executive search for electronic security and physical security industry companies. With today’s ever growing need for security at airports, government agencies, banking, commercial areas, utilities, university campuses and healthcare facilities, there has been tremendous growth in companies that provide electronic and physical Security solutions.

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.

Directed Perception was founded with a mission to be a leading manufacturer of innovative devices and software for the intelligent control of sensors and sensor processing. The Company's patented products are used in a wide range of industries including security & surveillance, industrial automation, robotics, communications, military/aerospace, law enforcement, education, R&D, webcams, and teleconferencing/distance learning.

Based in Boca Raton, FL, DirectView, Inc. is a leader in the area of security-related services for residential, commercial and industrial locations across the US. In business since 1995, DirectView has grown to be one of the mostly highly recognised providers of security solutions for a broad range of industries including hospitality, banking, aviation, processing/refining, and manufacturing/logistics.

Direktronik AB delivers comprehensive data and networking communication solutions. The company covers everything from end nodes in the networks such as IP cameras, on through switches, routers, etc. Direktronik also supplies fibre, wireless, mobile products. The company offers CCTV and surveillance equipments such as bullet, dome, PTZ, box cameras as well as NVRs, video servers, lenses, etc.

DISH Network is a renowned provider of satellite television, DVR, HD and international programming in the U.S.A They also provide satellite broadband service, IoT, wireless, tv, technology, connectivity, communication, and television services.

DITEK Networks is the first line of defence for Video Surveillance, Fire, Networking, Communications, Intrusion Detection, Access Control and AC Power systems. They have led the industry in the design and manufacturing of surge protection solutions for over 30 years, incorporating the latest technologies for maximum performance and protection.

DITEK Corporation has been the industry leader in the design and manufacturing of surge protection devices and systems for more than 20 years. DITEK provides total surge solutions for low voltage CCTV, fire and intrusion, access control, and voice/data/signal applications, including VOIP and POE.

Finland based, Divacont OY, offers security equipments such as IP and analogue cameras, NVRs, software, and more. from leading manufacturers including AVIGILON, GRUNDIG, MIRASYS, ORION, VIDEOTEC, SAMSUNG, FLIR, NVT, etc. Divacont provides its clients with technical support, maintenance, service, and assistance with all trade and supply issues , then aids with project management, consulting, accounting, installation, documentation and training.

Divergence Group are industry leaders in electronic security consulting and project management, with extensive experience in both the public and private sectors.

Diversified is a full-service systems and media technology integration company, originally addressing the technical needs of the broadcast, audio-visual, IT and RF market segments. The company is also a technology solutions provider of innovative digital media, collaborative broadcasting, electronic security, and OTT solutions to a wide array of markets including financial, media & entertainment, enterprise, energy, technology and healthcare.

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.

Divinet GmbH creates partnership with installers, designers and end users for working of an interactive network of engineering, sales and service. It also concentrates on the integration of quality systems in customer or industry-specific solutions. Dallmeier Electronic has set up an authorised branch office within Divinet for Switzerland region. Divinet offers Dallmeier CCTV / IP solutions and SMAVIA software package.

Division 28 Consulting, LLC is an independent security consulting and design firm. The company keeps up with the latest security consulting technologies to suit their client's needs. Their name, Division 28 Consulting, LLC is based on the security related systems contained within the CSI security section Division 28. However they do not design Fire Alarm systems.

Dixon Security provides Salt Lake City, Utah and the surrounding area with Digital Recording Security Systems using the latest cctv equipment, (PC and Linux Stand alone DVR/NVR Security Systems), Remote video surveillance over the internet, surveillance over laptops, tablets, and smart phones.

DJI specialises in flying and camera stabilisation systems that redefine camera placement and motion. DJI makes it possible through unparalleled commitment to R&D, a culture of constant innovation and curiosity, and a focus on transforming complex technology into easy-to-use 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.

DM Network Video is the IP surveillance arm of Dedicated Micros, the world class manufacturer of DVRs and video servers. DM Network Video provides differentiated IP video surveillance solutions that can grow from a single camera to a full enterprise-scale system and offers features and benefits unique in the market.