Magnox Ltd, the management and operations contractor, are responsible for the safe and secure clean-up of 12 nuclear sites and operation of one hydro-electric plant. The company is responsible for electricity generation at Maentwrog, defuelling at Wylfa and the decommissioning of Berkeley, Bradwell, Chapelcross, Dungeness A, Harwell, Hinkley Point A, Hunterston A, Oldbury, Sizewell A, Trawsfynydd and Winfrith, in the United Kingdom.

Malthouse Security Ltd. provides installation, maintenance and service of: Intruder alarms conventional wired and radio wire free Access control security systems Biometric, swipe card and key ring tokens Door entry video and audio systems from 1 way to larger systems in large number dwelling propertys Closed Circuit TV Warden Call and Nurse Call telecare community alarms Fire alarms and fire extinguishers

Marine AI is a software engineering firm, specializing in edge-based sensor-driven cognitive artificial intelligence (AI) to deliver safety-critical marine autonomy. With decades of experience in manned and unmanned marine vehicle design, manufacture and operations, coupled with vast experience in automation and autonomous systems software architecture and computer vision expertise, Marine AI has created Guardian cognitive AI control system.

Mark Two Technology offers a range of specialist electrical installations. All systems are designed to suit the customers requirement and installed to the highest standards.

Market Research Society (MRS) is a pioneer research association. For all those who need, use, generate or interpret the evidence essential to making good decisions for commercial and public policy. MRS is dedicated to the support, promotion and enrichment of the research and business world.

Martin Roberts is an established provider of premium architectural steel doorsets, and project management services. Widely installed throughout London, Martin Roberts doorsets are located in commercial skyscrapers, luxury accommodation, transport hubs, and high value retail complexes.

Master Alarms Ltd install, service and monitor security systems including smoke and heat sensors, CCTV, access control, and intruder alarms. Based in Kent, the company clients includes builders, working on new homes and apartments. Master Alarms are NACOSS approved and also deal with larger commercial enterprises including Ministry of Defense, Hospitals, Schools, & Universities.

Matrix Fire & Security offers a complete range of fire and security systems for domestic and commercial customers. The team can install and maintain CCTV, access control systems and perimeter protection. It also offer perimeter security products, such as buried sensors, fence & wall mounted sensors, radar systems, microwave zoning systems and security management systems.

Maximum Protection Services Ltd install professional, secure CCTV solutions, access control systems, and intruder alarms etc. From large industrial sites, to small businesses, Maximum Protection Services' engineers are devoted to building the perfect security solution for all its customers. MPS are an N.S.I. GOLD Accredited Installer and at the forefront of the next generation of IP based technologies.

MAXTAG is a British company dedicated to the nationwide sales, installation and service of security tagging systems, CCTV solutions, retail analytics and loss prevention software to the retail industry. The company specializes in providing higher performance security products with lower service requirements for the retailer

Mayfair Security specializes in installing and maintaining security systems including CCTV systems, access control, and intruder alarms systems etc. The company provide bespoke security solutions for its customers across all business sectors. Based in Adelaide House, Mayfair Security provide complete fire safety solutions for businesses, commercial and public sector clients.

Mayson Security System installs, maintains and repairs all types of electronic security from Intruder alarms to CCTV and door intercoms, from bells only alarms to police calling systems linked to a 24 hour monitoring station.

Based in Lisnaskea, McElwaine Security supply, install and maintain security system including intruder alarms, CCTV, access control and fire alarms. The company provides a superior level of security, particularly in isolated or rural premises. McElwaine Security service has been successful in increasing the feeling of security in urban spaces as part of an overall community safety strategy.

McGill Security is a specialist building services contractor serving clients in the Residential, Commercial and Industrial Sectors, as well as Homeowners. The company cover the whole of Scotland, providing the complete service from design, to installation and maintenance of intruder alarms, CCTV, fire alarms, door entry systems, access control, smoke detectors, and video entry systems etc. McGill is an NSI GoldAapproved Installer.

McGoff & Vickers(Fire & Security Sys)Ltd are one of the longest standing providers of Integrated Systems in the UK, providing installation, maintenance and designing services for all types of quality security systems. Based in Liverpool, the company's services include CCTV Surveillance, Intruder Alarms, Fire Extinguisher, and Access Control, Service and Maintenance and Remote Monitoring.

Mclennan Servo Supplies Ltd. is a renowned supplier of precision motion control products for over 40 years. They have a commitment to technical excellence and customer service and adopt a partnership approach to business. They offer their customers a professional specification and design service, backed up with qualified and experienced technical sales and applications support staff.

Meesons are a key player in the UK security industry. The company provides smart access control, security, portals turnstiles, fixed screens, sliding security screens, automatic doors, access control. Meesons are Safecontractor approved.

Melrose Industries plc seeks to acquire underperforming industrial businesses, whose operational performance can be improved. The company invests in its businesses to fully exploit their operational and strategic strengths. Melrose finances its acquisitions using a low level of leverage, improves the businesses by a mixture of investment and changed management focus, sells them and returns the proceeds to shareholders

Mercury Alarm Services Ltd is into installation, commissioning, and maintenance of security systems including intruder alarms, fire systems, CCTV, and access control systems etc. Based in Liverpool, the company has easy access to the motorway network and also provide its services nationwide. Mercury Alarm Services are NGI gold certified and