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.

Tayside's ELECTRO GUARD protects homes, business premises and public institutions of every size and description. The company designs, installs, and provides state-of-the-art electronic security systems. ELECTRO GUARD offers intruder alarms, CCTV systems, fire alarms, access control, locksmiths, and nurse call systems. The company also offers alarm monitoring services that provides 24/7 monitoring and protection to the clients' property.

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 Facility Systems Inc. integrates a broad range of qualified services which includes consultation, risk assessment, installation, service, maintenance, management, and SaaS offerings. The company is a complete source of security products and integration including CCTV cameras, access control systems, wireless security cameras, network security cameras, biometric readers, smart card readers, infrared cameras and surveillance.

Electronic Security Specialists & Cabling (ESSC) is a licensed low voltage contractor specialising in installation and servicing of high-tech electronic security systems and equipment, which includes CCTV systems, access control units, burglar and fire alarm systems.

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.

Electronix Systems has been providing security services throughout the New York Metro area. Electronix specializes in detection and protection systems. The company's other security services comprise of burglary detection, fire and life safety, card access, CCTV & digital recording and remote services.

Elektronet is an Istanbul-based service provider. The company offers a wide range of products and solutions including IP CCTV systems, burglar alarm, fire detection system, intercom systems, access control, PA systems, etc. Elektronet provides sales and after-sales support, commissioning, installation, and maintenance services.

Eletronic Systems Consultants is a minority and veteran owned small business that focuses on full system integration services to include system design, installation, inspection and monitoring services for the fire and security industry. ESC was founded in January 2011 with the knowledge and experience of forty years in electronics, safety and security. Some of its services include: video surveillance, alarm detection and access control.

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.

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.

ELV Technologies is a fast-growing ELV, ICT & Security solution provider, serving customers with a comprehensive range of Low Current, IT & Security solutions and services. They offer advanced technology solutions in partnership with world-class brands. Their certified and experienced personnel have the skills and capability to offer 360-degree services right from design, supply, installation, testing, commissioning, and maintenance.

Embedded Logix is a security software and solutions firm based out of the State of Michigan in the US. Their flagship Smart-LX software is an an application construction platform that enables industries to future proof their equipment by deploying a 'brand agnostic'​ sensor solution. They also provide asset monitoring, infrared, sensor aggregation software, critical infrastructure protection, & rules-based software solutions.

EMDION Safety Systems is a technology company that specialises in security technology and is based in Emden in northern Germany. They have an expert team that combines decades of experience, numerous reference projects and trend-setting innovations in the international landscape of security technology.

Ennovasys is a IoT expert providing cloud solutions using wireless and sensor based technologies. They do the middleware to make connected things and devices smart, and enable value-driven innovation that will be connected to the internet parameters. Protect your remote location and its assets through sensors and e-Surveillance.

ERTIKAZ is an organic company, dealing mainly in security and safety, CCTV, access control, data networking, voice and video over IP, RFID, automation solutions, and IT system integration services. ERTIKAZ's mission is to provide full professional services in all phases of the automation process. The company is made up of a multi-disciplinary and highly qualified team of professionals.

ESI Fire & Security Protection provide Mobile Security, ProActive Video Monitoring, Access Control, CCTV, Fire Alarm, Permitting and Design services for a range of security applications.

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.

The company offers design, installation, and maintenance of the following electronic security systems such as CCTV, mobile CCTV, intruder alarm systems etc.

Essence SmartCare develops pioneering IoT platforms for market-leading healthcare and senior care providers, enabling smart preventive care and emergency response so seniors can live life to the fullest – with total peace of mind.

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.

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.

EUNIR is a manufacturer of thermal imaging products. The company provides a comprehensive support for the entire range of Guide Infrared products. EUNIR also deals with security cameras, thermography cameras, handheld cameras and airbourne systems. EUNIR also offers a wide range of spherical and aspherical lenses.

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.

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.