ECHO operates to fullfil Bluelight Services interest in speeding up the police response to verified alarm activations through the use of digital automated alarm transmission technology. Its digital communications hub provides an automatic transfer to police control rooms of confirmed intruder and hold-up alarm activations, faster alarm verification, accurate incident information, and automated event incident acknowledgment.

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.

Electronic Security Systems and Fire Protection Ltd provides service and maintenance facilities for utility companies in the UK, telecommunications providers, primary care trust sites, major UK hotel chains, along with chains of fashion and convenience stores. The company's team of trained technicians are fully conversant in installation, service, maintenance and commissioning of fire alarms, CCTV, intruder detection and access control systems.

Elelock designs, manufactures and supplies, easy to install, effective and reliable electronic locking solutions to suit all requirements. Elelock provides cabinet access control systems, PS locks, cash handling system, door code lock, void building access control and so on.

Established in 2001, Eligo Security is a specialist recruitment company that fulfills security recruitment needs. The company helps find engineering, sales, technical support, marketing, R&D, design, project management, admin and senior management.

Elite Security's breadth of knowledge, as access control specialists, allows them to provide clients with state-of-the-art security systems that cover every eventuality. They meticulously plan a bespoke service for clients, in all types of commercial and communal buildings.

The Derby based Elite Security Services Ltd offers a complete range of services for security requirements. The company has a dedicated team of engineers available every day of the year, 24 hours per day, for maintenance of the security systems provided. Elite Security Services offers CCTV, access control, fire alarms, emergency lighting, intruder alarm, electrical services, wireless and wired alarm systems.

Trusted security solutions for retail, hospitals, events, construction sites and more. SIA licensed professionals delivering excellence in security services.

Emergency Response recognises that its work may have a direct or indirect effect on the local, regional and global environment. It is committed to reducing any harmful effects on the environment and promoting the understanding of sustainability in its broadest context, wherever possible.

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

Equiniti is a global provider of technology and solutions for complex and regulated administration, serving blue-chip enterprises and public sector organisations. Equiniti is known to ensure smooth business and operations for renowned brands and public sector organisations. They also provide cybersecurity solutions for enterprises via their own in-house cybersecurity platform, Zero.

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.

Paisley based ESP Security Systems is a NACOSS approved company for installation and servicing of intruder alarms, CCTV systems, door access systems, and fire alarm systems. The company provides domestic and commercial systems to meet the specific needs of clients.

ESS-Security Ltd is a specialist in the designing, installation, maintenance and 24-hr remote monitoring of security systems. It is a professional security company based in Leeds, with many years of experience in supplying the best security systems and security services across West Yorkshire. ESS-Security delivers CCTV, access control, intruder alarm, fire alarms, gate automation solutions to corporate, commercial, retail or residential clients.

Essential Security Systems Limited is one of the fastest growing installers of access control, CCTV systems, intruder alarms and fire alarms in the South East, both in residential and commercial premises. With over 45 years of knowledge and experience in the industry, Essential Security Systems Limited offer the highest level of skill and expertise in order to give their clients the best security products and solutions in the market.

Based in the South East, Essex Gate Systems offers installation and repair services. The company also supplies and fits automatic (electric) metal gates, railings, barriers and entry systems to both the public and private sectors. Essex produces ad-hock gates, railings and security grills.

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.

Euro Security & Fire is an NSI (National Security Inspectorate) Gold approved installer accredited to BS EN ISO 9001:2000 Quality Assurance and NSAI (National Standards Authority of Ireland) ISEN:50131-1-2006. The company offers intruder alarms, fire alarms, CCTV, access control systems, safes, etc. Euro Security's CCTV division provides a specialised covert installation and monitoring service.

Eurolink Security Systems specialises in the design, supply, installation and maintenance of integrated security systems throughout the UK and Europe and are co-ordinated via National Service Centre based in Cheltenham and localised operating bases. Eurolink extends its expertise to commercial, domestic, local authorities, Government, banks, leading companies. Eurolink offers CCTV, access control systems, and intruder alarms.

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.

Eurovia UK is a highway infrastructure and maintenance company located in the UK. It a part of Vinci Group. They also install traffic security solutions.

Evolution Fire & Safety offers end-to-end security solution to ensure compliancy with an organisation, be it small or large. Their consultants design solutions tailored specifically to the needs of a business in order to ensure optimum safety and security.

ExcelRedstone is the UK’s largest designer, installer and provider of IT infrastructures, connectivity solutions, smart building technology and managed service offerings. Combining innovative and flexible responses with global capability, their solutions are deployed in some of the world’s largest data centres, intelligent buildings and work spaces.

Executive Security, based in Worcestershire, has 25 years' experience of installing security systems. The company provides its services to residential, industrial and commercial clients. Executive Security offers networked access control systems, video door entry, burglar alarm systems, remote access for CCTV systems, alarm monitoring, etc.