Matson Alarm began by providing primarily burglar alarm and monitoring services, however, as the company has grown, the product line has too. Matson Alarm now offers its customers burglar and fire alarm systems, methane detection and monitoring, access control and CCTV systems, voice and data cable wiring, and audio, video and telephone systems.

Maxxess is a U.S.-based, privately held, global corporation specialising in security management solutions and innovative technologies that are effectively transforming the way businesses approach and implement security. Leading organizations worldwide, from healthcare to hospitality and transportation to telecommunications, choose Maxxess for the company’s expertise in security system management software, communications and database integration,

For 33 years MCM Integrated Systems has been a leader in the design and installation of state-of-the-art integrated access control and video security systems for corporations, government agencies, banks, hospitals and high-rise complexes in the greater Los Angeles area.

McRoberts Protective Agency, Inc., is a privately-held, full-service security provider with national scope. McRoberts provides comprehensive, customised and integrated security services, technology, consulting, investigations, and training. McRoberts offers latest in integrated security technologies such as electronic access control systems, advanced locate and tracking systems, CCTV systems and remote monitoring solutions.

McRoberts Security Technologies is one of the largest patient protection system integrators in the United States. It has been providing end-to-end patient/facility protection solutions since 1992. McRoberts Security Technologies supplies customised integrated solutions, including Active RFID tagging systems for tracking patients, and assets, CCTV surveillance, and access control systems.

MCS Detention is part of ISI Detention responsible for supplying and installing a wide range of detention product lines including Door and Utility Control, access control, intercom and paging, perimeter security, CCTV, and DVRs etc. The company is built on a foundation of strong technical leadership, as well as its solid management, training, and support teams. MCS has a distinct advantage in developing unique solutions for its loyal client base.

MedixSafe began designing and manufacturing narcotics control cabinets in 2008. The first narcotics control cabinets were designed for the EMS market to be used in ambulances. MedixSafe caters to the key control needs of doctors, dentists, veterinarians, university research departments and schools of medicine, hospitals, wildlife management services, the U.S. Army, U.S. Navy, helicopter companies, gold mines, animal hospitals etc.

Established in 2003, MESSOA Technologies Inc. specialises in surveillance technology, offering security and surveillance cameras with comprehensive network solutions. MESSOA is dedicated in offering customers with reliable, easy-to-use surveillance solutions for professional installations. The company's cameras have provided reliable protection for diverse industry segments and applications.

MFS Systems offers advanced Integrated Security Solutions to help you better manage your businesses, Fire, and Security needs. Their highly skilled technicians, engineers and design team offer a wide array of intelligent systems that integrate your Enterprise Fire and Security System into a cohesive managed system.

Micro Networks offers a variety of services, such as voice, data and video cabling as well as access control and video surveillance. The company is also a professionally licensed electronic security systems company, with years of experience in design and installation of surveillance camera systems throughout DC, Virginia, Maryland and Mid-Atlantic region. It also serves commercial, retail, office, government and residential clients.

Microbiz Security Co. is a full-service provider of integrated access control and video surveillance solutions based in San Francisco.

Microsemi Corporation is a leading provider of semiconductor solutions differentiated by power, security, reliability, and performance. The company offers a comprehensive portfolio of semiconductor solutions for: aerospace, defense and security; enterprise and commercial; and industrial and alternative energy markets.

Midco Systems, Inc. is the USA based security system integrator. The company offers integrated access control and monitoring, CCTV, digital & network video recording, perimeter protection, emergency response stations and video intercom stations etc.

Midwest Low Voltage LLC installs phone systems, CCTV, access control, home theaters and more. The company maintains, repairs, replaces and upgrades all products and services.

Milsk Company Inc. is a fourth generation family-owned manufacturers' representative firm. The company represents industry's leading manufacturers of audio/visual, commercial sound, access control, video surveillance, perimeter solutions, etc.

Miotta, formerly MivaTek, is a global smart home video alarm, awareness, & assurance services company, providing comprehensive wireless video, security, safety, health, automation and energy monitoring solutions for homes and businesses. With a patented zero-pairing, plug-and-play technology integrated with a 27+ smart devices ecosystem, Miotta solutions seamlessly connect WiFi cameras and smart devices, offering instant video alarm/alerts.

The Mircom Group of Companies (MGC) is North America’s largest independent designer, manufacturer and distributor of advanced fire detection & alarm, voice evacuation & communication systems, and controlled access & security solutions. The company owns the Mircom, Secutron, and Summit branded line of products. The Mircom Group of Companies is ISO Certified to the ISO 9001:2008 standard.

MIRTECH delivers advanced, innovative, intelligent solutions that simplify the complexity of turning security requirements into a reliable security system. The company engineers products that deliver the ultimate in power and flexibility.

Mitsubishi Electric is a pioneer in the design and manufacture of advanced security solutions including digital video recorders, IP cameras, network recorders, and remote monitoring software. From basic security for information systems to total building and premises security systems for banking and retails, Mitsubishi Electric has the solution to meet customer needs.

Owned and operated by former law enforcement officials. Providing armed, unarmed and special response security officers throughout Colorado and Wyoming. MLC Security & Investigations also offers extensive security training services as well as consulting and investigation services.

Mobile Pro Systems (MPS) is an industry leader in the development of mobile power solutions utilised by law enforcement, emergency management and numerous commercial, industrial and governmental entities.

Monfort Electronics Marketing, Inc. is a manufacturers' representative firm. The product offering includes security locks, IP transmission, access control, CCTV, fire safety, control room furniture, biometrics, and more.

Monitor America is the latest central monitoring station on the East Coast monitoring properties nationwide. The new Monitor America center monitors analogue and digital streaming video feeds from its clients’ locations, as well as signals from access control and intrusion solutions. The company offers video surveillance, remote video surveillance, video verification of alarms and license plate recognition, among other security services.

Established in 1979, Monitor Dynamics (MonDyn) is a US based manufacturer of unified security management systems that blend access control, video surveillance, intrusion detection and identity products into an open-architecture, command and control IP platform. The company delivers real-time visualisation and facility control to over 10 million client access and intrusion points across the globe.