M.C. Dean, Inc. has been a leader in security systems installation and maintenance specialized in intruder detection system, access control system, CCTV, and Sound and Audio/Visual Systems. The company provides design and technical services to commercial, industrial and governmental clients. Based in Virginia, M.C. Dean is the nation’s premier electrical design-build and systems integration firm for complex, mission-critical organizations.

M.C. Dean, Inc. design, build, operate, and maintain cyber-physical solutions for the nation's most recognizable mission-critical facilities, secure environments, complex infrastructure, and global enterprises. The company's capabilities include electrical, electronic security, telecommunications, life-safety, instrumentation and control, and command and control systems.

M3T provides physical and logical security, IP-based video surveillance, remote monitoring, access control, automatic gates, intrusion detection, badge systems, intercom systems, key storage, locksmith services, electric locking hardware, power doors, video management and networking solutions for government and commercial organizations in Pennsylvania, Maryland, Delaware, the DC Metro Area, and Northern Virginia.

MacPaw UA helps 30 million MacOS/iOS users empower themselves with technology. Humans behind CleanMyMac and Setapp.

Maersk Line, Limited (MLL) is an American company, headquartered in Virginia with offices in Norfolk and Reston, that provides U.S. flag transportation, ship management and maritime technical services to government and commercial customers.

For over 110 years, Maffey's Security Group has been a leader in helping businesses throughout New Jersey and beyond develop a safe and secure environment. From basic deadbolt locks to hi-tech access control, surveillance, and security systems, Maffey's can assist with all of business security needs.

Magnolia Bend IT is a small IT company that focuses on small networks and security solutions.

Organizations around the world face an ever-increasing barrage of cyber threats that present a risk to their data, operations and clients every day. Mandiant provides solutions that protect and defend organizations against cyber security attacks, globally leveraging innovative technology and expertise from the frontlines to deliver a broad portfolio of consulting, innovative software-as-a-service (SaaS) solutions and managed security services.

Manifest Concepts is not just a graphic design company. It specialises in Home Theater, CCTV, Custom computer builds cabling and much more. Anything in the communications and advertising industry we pretty much do.

Marvell Technology leverages its unrivaled portfolio of infrastructure technology to identify the best solution for unique needs. And it sits shoulder-to-shoulder with teams to build it. It looks for unexpected connections that deliver a competitive edge and reveal new opportunities.

MasTec Network Solutions are a specialty contractor for communications, utilities and governments. The company deal in Network Design & Planning, Disaster Recovery, Microwave Engineering among other services.

Maven Security Technologies is one of the most renowned security companies, providing businesses the peace of mind they deserve. They provide clients with cutting edge solutions to ensure the safety of their organizations by mitigating physical and biological threats continuously.

Low Voltage specialists of the following: access control systems, alarm systems, camera systems (IP or analog)data network systems, healthcare systems, intercom systems, phone systems.

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.

Metapix is building a powerful new cloud-based visual intelligence management solution.

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.

Michigan security systems is trained and certified to install, troubleshoot, maintain, or repair your system. They offer security cameras, card access systems and alarms, phone and intercom systems, PA systems, loudspeakers, and network setups. At Michigan security systems, their alarm systems offer additional protection against thieves.

Micro Focus is one of the enterprise software providers. They deliver trusted and proven mission-critical software that keeps the digital world running. Micro Focus helps customers accelerate, simplify, strengthen, and analyze their business and operations so they can run and transform their enterprise.

Micro Networks specializes in voice, data, and video network cabling service, including copper, fiber and wireless technologies. Their experienced engineers and certified technicians have designed, deployed and supported a broad range of network systems

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.

Microchip Technology Inc. is a global provider of microcontroller, mixed-signal, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for customer applications. The company serves thousands of customers, designing high-volume embedded control applications in the consumer, automotive, office-automation, communications and industrial-control markets worldwide.

Based in Michigan, Midstate Security installs and designs integrated electronic security and monitoring systems. The company provides the highest standard of monitoring services for the criminal justice system. Midstate Security has established a track record of serving state and local governments, especially in the critical areas of prison and court security, video conferencing for arraignments, and monitored home detentions.

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.

mimoIT is a boutique technology solutions provider specializing in enterprise-grade IT, cybersecurity, and physical electronic security services tailored for small to mid-sized businesses. With a focus on high-touch, white-glove support, mimoIT delivers end-to-end solutions including managed IT services, secure network design, cloud infrastructure, video surveillance, access control, and intrusion detection systems.

Mint House is a technology solutions hospitality company, that provides tech-enabled suites designed for high-end business travelers providing apartment-style accommodations in class-A multifamily buildings in downtown core areas. Mint House invests heavily in its technology and new buildings around the country to continue innovating in the luxury business travel market.

Minuteman Security & Life Safety is a national systems integrator dedicated to protecting people, property, and mission-critical operations. Founded in 1988, Minuteman has grown into one of the largest security and life safety providers in North America, recognized as the 2025 SDM Systems Integrator of the Year.

Mist Systems is a pioneer in self-learning wireless networks, powered by artificial intelligence (AI). It brings enterprise-grade Wi-Fi, BLE and IoT together to deliver personalized, location-based wireless services without requiring battery-powered beacons. They also provides full access solutions with PoE and media access control security encryption.