Defence Doors is a Yorkshire based UK steel fabrication company with over 20 years of experience manufacturing flood gates, blast doors and prison doors. The company also offers electronic security, electric locking systems, video and intercom systems, CCTV systems, and perimeter intruder detection systems etc.

Defendec is an innovative company specialising in the development of world-class remote premises surveillance technology. The company's main product Smartdec is securing NATO’s and European Union's external borders. Smartdec helps stop international smuggling, illegal trafficking, and acts of sabotage every day making it the technology of choice among border guards.

Defender was founded in the year 2000. They manufacture fire suppression solutions. They are now established in around the world to bring the best kitchen suppression system in every kitchen. Their product is Certified LPCB.

Defentect develops and delivers software solutions to facilitate the response to the detection of a threat. The company improves customers' safety, security and continuity by facilitating an appropriate, informed and timely response.

Defero Technology is an innovation-technology enterprise which has been focussing on providing customers with commercial automation and intelligent parking management systems. Defero has independently developed the AD01 series of embedded control system, multi-link communications bus control technology, and obtained 20 more patents.

Defy is an early-stage venture fund focused on emerging high-potential opportunities. Chasing hype is not our style. Defy.vc value authenticity, and admire the tenacity it takes to turn a daring idea into an enduring company. Defy.vc back extraordinary people capable of changing the status quo. Defy.vc showcases its success, and works hard behind the scenes to amplify it.

Deister Electronic Ltd is one of the world's leading companies in the development, manufacture and marketing of electronic security and identification products.

Dejero supplies the equipment, software, connectivity services, cloud services, and support to provide the uptime and bandwidth critical to the success of today’s organisations. Dejero blends multiple Internet connections to deliver fast and dependable connectivity required for cloud computing, online collaboration, and the secure exchange of video and data.

Delaney Hardware is a renowned provider of premium builder hardware for residential homes, multi-family buildings, and commercial projects. As part of the Sargent and Greenleaf (S&G) family of brands, Delaney offers a full portfolio of hardware including door hardware, digital locks, barn door hardware, bath accessories, commercial hardware, trim hardware, steel doors and frames.

Delco Security stands as a national Master Systems Integrator (MSI), committed to providing cutting-edge and adaptable system solutions. They serve a wide range of industries that include municipal, universities, corrections, hospitals, and many more. They take pride in being able to integrate the solutions using new and existing technology, making them one of the most versatile solutions providers.

Delinea is a provider of privileged access management solutions that make security seamless for the modern, hybrid enterprise. Its solutions empower organisations to secure critical data, devices, code, and cloud infrastructure to help reduce risk, ensure compliance, and simplify security. Delinea removes complexity and defines the boundaries of access for thousands of customers worldwide, including over half of the Fortune 100.

As an end-to-end computing solutions company, Dell provides high quality solutions. The company serves customers ranging from the world's largest businesses and public-sector organisations, to small and medium businesses, and individual consumers. Dell specialises in computers, storage, servers, IT services, services, software, IT security, end-to-end computing solutions, mobility, cloud computing, etc.

Dell EMC serves a key role in providing the essential infrastructure for organisations to build their digital future, transform IT and protect information. Dell EMC enables enterprise customers’ IT and digital business transformation through trusted hybrid cloud and big-data solutions, built upon a modern data center infrastructure that incorporates industry-leading converged infrastructure, servers, storage, and cybersecurity technologies.

Delos is a leading international manufacturer of products for access control and security systems serving OEM customers as well as selected distribution partners. The company provide high-quality products such as proximity reader, access controller, turnstiles, optical channel, bollards, parking barrier and guidance.

Delta Audio-Visual Security is a full-service, electronic systems integration firm. They provide complete Design and Engineering Services, Installation, Documentation and Customer Training for high-tech audio, video, control systems, digital signage, and unified communication.

Delta Group is the world's largest provider of switching power supplies and DC brushless fans, as well as major source for power management solutions, components, visual displays, industrial automation, building automation, building management and control systems, networking products, and renewable energy solutions. Delta Surveillance Automation System offers IP cameras, central monitoring system, NVRs, storage and cloud based backup system.

Delta Group is the world's largest provider of switching power supplies and DC brushless fans, as well as a major source for power management solutions, components, visual displays, industrial automation, networking products, and renewable energy solutions.

Delta Southern UAS explores the capabilities and feasibility of UAVs (Unmanned Aerial vehicles) for defence, commercial and agricultural applications. An industry leader in software processing and drone technology, the company aims to contribute to the success of clients and customers by investing in high technology drone systems.

Delta System Technology designs systems giving the possibility to the customer to interact in real time with the central alarm and video surveillance.

Delta Turnstiles is a manufacturer of high quality optical turnstiles for corporate and government lobby entrance control needs. As a complement to a sophisticated access control system, Delta’s focused line of architecturally designed products satisfies the needs of both security and facility management concerns.

Delv develops and deploys mobility services for government and private sector organisations including finance, utilities, insurance, government, non-profit, healthcare and professional services organisations. The iCOPS platform by Delv is an innovative, enterprise mobility solution specifically designed for use within the law enforcement and security sectors.

Delvitech designs, manufactures and supplies a sustainable AI-based technological solution for the 3D automated optical inspection of assembled printed circuit boards.