Deutsche Telekom provides fixed-network/broadband, mobile communications, Internet, and IPTV products and services for consumers, and information and communication technology (ICT) solutions for business and corporate customers.

Dev Technology Group is a WOSB, SDB delivering mission-critical applications and systems. The USA based company provides broad range IT services, with specialisation in web-based application development and system modernisation, database consulting services, biometric capture and integration solutions, and BMC Remedy and infrastructure management solutions.

Developing Solutions is focused on protocol development, test, and traffic analysis. They have developed dsTest, a software platform for the rapid deployment of protocols stacks, intended for performance and functional test.

DevelopIntelligence provides technical training for software developers and related talent in more than 300 subject areas. They help enterprise organisations onboard, upskill and reskill tech talent with programmes customised to the stack, culture, and goals.

Development Fraud Investigations (DFI) conducts independent and objective investigations of fraud allegations for international development (NGOs and non-profits) and contracting organisations.

Development Trading Company (DTC), a highly regarded first company specialising in the field of security services and printing in the Gulf region, largely focuses its activities on security printing, security materials, access control and machinery, currency printing, passports, ID cards, along with handling and maintaining sensitive government security documents.

Deveryware is the French expert in investigation technologies and services for global security. The group’s offerings encompass legal and digital investigation, real-time geo-localisation platforms, cyber security, combatting fraud, crisis management and emergency communications. At the service of companies and states, they offer a complete range of solutions for the security of goods and people.

Device Authority is a provider of Identity and Access Management (IAM) for the Internet of Things (IoT) and Blockchain. The Company also provides solutions such as data security, network access control, credential management and much more. Device Authority manufactures innovative smart, connected devices with robust security integrated from the outset.

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.

Device4u's vision is dedicated towards designing, researching & developing high-quality, value-added system-engineered solutions to OEM companies as well as to the end user markets. To this end, the company is fully committed to seeing these five key technology areas through to commercialisation : video transmission and security, power efficiency and management, green mobility, RF solutions and embedded systems.

deView electronics is a manufacturer of CCTV cameras, IP technologies and LCD panels located in Lewisville Texas.

deView Europe is a premier imaging and sensing company, part of the world's premier OEM/ODM CCD camera and LCD monitor provider. The group actively supports and services customer relationships through offices based in Europe, North America and Asia. The company is a leading provider of LCD panels, day night cameras, wide dynamic cameras, recorders, ancillary products and more.

Devline Ltd. was founded in 2004 in Krasnodar, Russia. Today, their Russian division has more than two hundred dealers in Russia, and has established a name for itself in the video surveillance markets of Ukraine, Kazakhstan, Belarus, Armenia, and Azerbaijan. In 2009 they founded their international branch in Shenzhen, China, and began offering their products worldwide in 2012.

Devo is the only cloud-native logging and security analytics platform that releases the full potential of your data to empower bold, confident action. With an unrivaled scale to collect all of your data without compromise, speed to give immediate access and answers, and clarity to focus on the signals that matter most, Devo is an ally in protecting an organisation today and tomorrow.

Incepted in the year 2017, DevRAy are manufacturing a world-class range of CCTV Cameras. They are also proficient in bringing out a wide range of Wireless Ip Cameras, Dome Camera and, Bullet Camera & Switches etc.

DFB Security is a leading Security Consultancy provider of security, investigation, training, operational and expert witness services. It provides bespoke security and investigation solutions to public sector, retailers, solicitors, private Businesses as well as charities and voluntary organisations across Ireland.

DFR Risk Management provides consultancy services specialising in ATM fraud and security risk management. The company offers extremely comprehensive training packages tailored to the training objectives of clients. The core services offered by DFR Risk Management includes incident response, risk assessment, new product assessment, ATM business continuity management, etc.

DG Concept was founded in 2021. Specialising in the design and implementation of physical barrier projects, DG Concept Gunnebo Partner supports the installation of security equipment linked to access control systems by proposing the right products.

Based out of UAE, DG World is a renowned global high-tech Robotics and AI solutions company. They provide a wide range of turn-key, autonomous vehicles, AI and other technology solutions. Other solutions include advanced technology, robots, IoT, industrial and hybrid drones.

DGS is managed and operated by this team who take a real hands on approach to all the operational aspects of each and every contract. DGS Service Solutions provide a range of outsourced Security, Cleaning and FM Solutions to a range of customers including shopping centres, offices, factories, and retail outlets.

DH Vision is a diversified manufacturer of low voltage video surveillance equipment and accessories. Their primary product lines include cutting edge technology and overall reliability. All of their high quality Uniview and Dahua brand DVRs, NVRs, HD-CVI cameras, and IP cameras are backed by a 3-year warranty. DH Vision believes that being able to provide the best security footage to end users will keep the streets, houses, and businesses safer.

DH2i Company is a provider of multi-platform Software Defined Perimeter and Smart Availability software for Windows and Linux. DH2i software products DxOdyssey and DxEnterprise enable customers to create an entire IT infrastructure that is “always-secure and always-on.”

Dhonaadhi Hitec Innovations provides the finest solution for Fire, safety and security systems. They have taken pride in supplying cutting-edge, high quality Fire, safety and security to a large number of consumers. Dhonaadhi provides a full pledge service since 1993.

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.

DHS Systems Int'l Ltd, with its business title of DHS Systems International, is the rebranded name of MilSys (UK) Ltd. This title better reflects that role of the company, which is to provide DRASH mobile infrastructure capabilities and solutions for defence, security and crisis relief organisations worldwide. DHS Systems Int'l Ltd remains a subsidiary of DHS Technologies LLC, which is based in Orangeburg, New York.

DIADEM is a 10-year-old company with over 25 years of experience in pedestrian and vehicular obstacles. Its maintenance and repair service covers all brands on the market, with guaranteed on-time delivery. From maintenance and repair to product development and adaptation, the teams can support all projects.

Dial-N-Document is web-based documentation system provider that interfaces with services for a secure Electronic Visit Verification (EVV) solution. Dial-N-Document provides accurate time & attendance, biometric voice verification, Near Field Communication technology etc.