Deep Knowledge Group is a consortium of commercial and non-profit organizations active on multiple fronts in the realm of DeepTech and Frontier Technologies (AI, Longevity, FinTech, GovTech, InvestTech), ranging from scientific research to investment, entrepreneurship, analytics, media, philanthropy and more.

- Founded in 2009, Deep Secure is privately owned UK-based security software solutions firm. Services offered include Content Threat Removal, Content Transform, Policy Enforcement, Cyber Security, Data Security, Email Content Security, Web Content Security, Portal Protection and Deep Content Inspection.

DeepAlert is an AI video analytics company and cloud-based system providing accurate object detection using artificial intelligence to deliver event-based, actionable alerts in real-time to enhance monitoring operations.

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.

Defence IQ is an authoritative news source for high quality and exclusive commentary and analysis on global defense and military-related topics. Since being created in 2009, Defence IQ's online community has rapidly grown to over 100,000 defense professionals. Sourcing interviews and insights directly from senior military professionals, Defence IQ is a unique multimedia platform to learn about the latest developments within the defense sector.

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

Delaney Secure Ltd is an IT security distributor specializing in biometric authentication, door entry systems and PCI DSS compliance. Leading stockist of door entry solutions, time and attendance, fingerprint readers, palm vein readers, iris scanners, face recognition and OEM biometric hardware and software solutions.

Delkia is a specialist engineering & technology company for safety-related & mission-critical systems. Its mission is to enable a safer, more resilient world through the provision of engineering and technological solutions.

Delta Tec Alarms delivers high-quality alarm systems and reliable alarms to customers. The company advises customers on the products that best serve their security needs.

Demux Video Services Ltd is a leading forensic multimedia analysis and software company, specializing in the clarification and Demultiplexing of CCTV images and footage as well as audio material.

Dent Security Systems is the Cambridge security specialist. Founded in 1870 by locksmith Robert Dent. The company offers integrated solution of electronic and physical security to meet any circumstances in home or business premises. The service includes installation and maintenance of residential & commercial ‘burglar alarm’ systems, intruder alarm, remotely monitored intruder systems, police monitored burglar alarms, CCTV/ Video surveillance.

Department for Energy Security and Net Zero (DESNZ) is focused on the energy portfolio from the former Department for Business, Energy and Industrial Strategy (BEIS), in the United Kingdom (UK) government.

Positioning the UK at the forefront of global scientific and technological advancement. Focusing on stronger growth, better jobs, and bold discoveries.

Derwent Systems is a industry leader in the field of Infra-Red technology - an essential element for effective night-time CCTV surveillance and ANPR.

Design Automator is a SaaS solution for the security systems industry that automates the engineering process, eliminates human error and delivers system wide consistency, whilst saving both time and money.

Destination 5 is a provider of access control, CCTV, intruder detection and advanced integrated Systems. The specialists work with government and public sectors is provided to support the foundation of our national infrastructure against security threat and to assist operative safety.

Detection Security Systems offers complete range of specialist electronic fire & security systems to meet the ever changing needs of residential, commercial, retail and industrial clients. The company provides products and services such as intruder alarms, CCTV systems, access control, fire alarms, alarm monitoring, gate automation as well as service and maintenance.