CSG UK PLC specialise in the installation, maintenance and support of security systems for companies and organisations throughout the UK and Europe. CSG UK supply and install comprehensive security systems for national chains and individual businesses in the form of: CCTV, Access Control, Public Address, Intruder Detection and EAS (Electronic Article Surveillance), Fire and Safes.

D.W. Price Security was established in 1998 by the current directors who each have more than 30 years experience within the physical security sector. They are the 3rd generation of the original family business, with roots based in the original glass and glazing industry with the first security installations carried out in the early 1970s.

D&D Security Derby offers fully licensed SIA-approved security guards that are ready to be deployed within hours upon acceptence. It provides approved contractor security services for major companies across the UK. Specialists in static guarding, it offers a cost-effective security service for the protection of UK businesses.

DA Security Systems are a family run CCTV, Fire and Alarm Business. It has been operatiing from Lee-on-the-Solent in Hampshire, UK since 1984. It has over 40yrs experience with the installation and maintenance of CCTV, Fire Alarm, Intruder Alarm, Door Entry and Nurse Call systems.

DAS Technology can design, install and maintain security systems for a wide range of uses from homes, shops and offices to shopping centres, schools and car parks. They provide bespoke security solution that meets your needs, and all completely hassle free. Their nationwide network of engineers is trained to the highest standard in order to install security systems with a professional, efficient and reliable service.

DAS Technology are technology specialists with over a decades experience delivering solutions for both commercial and domestic customers. Their security division is full of specialists in CCTV, access control, door entry and fire.

DC Solutions is a CCTV installer based in Luton.

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.

Doordeck provides mobile access control which embeds with a variety of door access control systems, making it easy for the user to unlock the door from the phone.

Drax Group is a renewable energy company engaged in renewable power generation, the production of sustainable biomass and the sale of renewable electricity to businesses. Drax operates a generation portfolio of sustainable biomass, hydro-electric and pumped hydro storage assets across four sites in England and Scotland. It is the UK’s largest source of renewable electricity.

At EDSB, they believe that their culture sets them apart from the competitors. They’re a modern and progressive business with innovative ways of managing and supporting the people, and they also promote an inclusive and collaborative workplace culture, so that everyone feels at home.

UK's Electrical Fire & Security Solutions supplies, installs, maintains, and offers break down fault repair services to CCTV, access control, biometric systems, door entry, intercom, intruder alarm, perimeter alarm systems, fire alarm systems, automatic electric gates, vehicle barriers, and electrical systems. The company offers services to industrial, commercial and domestic installations in Hampshire, Dorset, Wiltshire, Berkshire, and London.

Based in Belfast, Electronic & Security Services Ltd is a team of designers and installers, who help in designing, installing, commissioning, and servicing of security systems. The company provides its residential, commercial, and retail customers with security solutions. Electronic & Security Services offers security solutions including CCTV, access control, door entry, fire alarm, automated gates, and security lighting.

Electronic Security Installations Ltd is a specialist security installation company. The company's clients include private homes, shops, large offices, industrial sites, schools and medical units. ESI is accredited by the Security Systems Alarms Inspection Board (SSAIB) for installing and servicing intruder alarms. Based in the North West Electronic Security Installations cover Cheshire, Derbyshire, Greater Manchester and all surrounding areas.

Emprise is a leading support services company specialising in cleaning and security with an excellent track record of delivering high quality solutions. Emprise provides total security solutions to many of the UK's leading businesses like integrated security, electronic security, technical security, security guards, security receptionists, CCTV, Access/Egress control, etc

With over 180 years of manufacturing, design and innovation experience, ERA Home Security is a leader in the development and distribution of hardware and security solutions for the residential building and home improvement markets. ERA has extensive knowledge and experience of delivering a total security solution for windows and doors, supplying fabricators and installers, locksmiths and security specialists, building professionals.

Essex Security Services is a Loughton based security company. The company supplies, installs, and maintains security systems. Essex Security Services offer access control, CCTV systems, door entry systems, intruder alarms, call solutions, and fire solutions. Essex Security Services' clientele include public limited companies, education sector, NHS Trusts and prestigious commercial enterprises.

Based in London, Eurotech specialises in design, supply, installation and maintenance of electronic and physical security solutions. Eurotech offers intruder alarms, fire alarm systems and detection, CCTV systems, access control, door entry systems, integrated security systems, gates and gate automation, security lighting, perimeter security, alarm receiving centre monitoring, grilles, locks & safes to its residential and business customers.

Exidor Ltd is a UK based architectural ironmongery company manufacturing a comprehensive, high specification range of panic and emergency exit hardware, door closers and builder’s ironmongery. Exidors range of quality door closers includes overhead and electromagnetic closers, floor springs and transom closers.