Mammoth Electric, Inc. is a California-based electrical contractor established in 1995, with its key employees bringing 75 years of combined experience to the organization. Mammoth Electric Inc. has a professional team of electricians and supervisors as well as an internal support staff.

Mark One Electric specializes in the design, installation, and maintenance of complex electrical systems. They are one of the largest and most respected union electrical contractors in the Midwest.

Maron Electric Company is an innovative force in the electrical industry with advanced products and systems for the most challenging applications.

Martell Electric is dedicated to providing superior customer service and maintaining the highest standards of integrity, professionalism and safety while maximizing value for the customers.

Marubeni Corporation conducts importing and exporting (including third country trading), as well as domestic business, encompassing a diverse range of business activities across wide-ranging fields, including metals & mineral resources, energy, power, infrastructure project, aerospace & ship, finance, leasing & real estate business, construction, industrial machinery & mobility.

Maschinenfabrik Reinhausen GmbH have been writing the success story in the world of energy technology for more than 150 years. MR products regulate more than 50% of the worldwide power supply. Maschinenfabrik Reinhausen GmbH (MR) and more than 27 subsidiaries and 10 joint ventures globally. In the past financial year, more than 3,800 employees produced a turnover of 850 million euros.

Massey Electric Company is a full-service electrical contractor headquartered in Alcoa, Tennessee with separate offices in Kingsport, Tennessee, and Cleveland, Tennessee. They offer a full range of services from design and planning through new construction to renovation and service work for existing structures

Master Electric is a full-service electrical contractor servicing the upper mid-west since 1973, providing commercial/industrial, multi-family, communication/data/fire/safety with a full-service department. Master Electric is a proud provider of TESTT Services - guaranteed predictive & preventive maintenance solution programs for electrical distribution systems.

Matanuska Electric Association, Inc. (MEA), is Alaska’s oldest existing and second-largest electric cooperative. MEA is owned and operated by its more than 51,000 members and governed by bylaws and articles of incorporation that are voted on and approved by the membership.

Maui Electric Company’s mission is to provide secure, clean energy for Hawaii. In a changing world, Maui Electric Company along with its parent company, Hawaiian Electric Company, has evolved to offer more than electricity.

McBride is the nation's leading specialized electrical and information transport (voice, data, video) contractor. With a proud heritage since 1950, McBride serves more than 50% of the Fortune 500 through a unique combination of 11 regional branch offices and their best-of-breed affiliate organization.

McMillan Electric is a fast-growing full-service Electrical Contractor serving the San Francisco Bay Area since 1965. Their reputable divisions include; electrical, audio-visual, low voltage, preventative maintenance/IR, telecommunications, and security.

Medina Electric Cooperative, Inc., a not-for-profit electric cooperative, was formed in 1938 under the provisions of the United States Rural Electrification Act and incorporated under the provisions of the Texas Electric Cooperative Corporation Act. Like other co-ops, they operate under seven guiding cooperative principles and were born out of the need for electricity in South Texas.

Megger has been the premier provider of electric test equipment and measuring instruments for electrical power applications. Megger provides a full-service solution to meet the electrical test and measurement needs. Its products provide testing solutions in the most critical maintenance areas including cable fault locating, protective relay testing, and power quality testing.

Meisner Electric Inc. is a full-service commercial electrical contractor. They provide customers with efficient and economical building solutions. Through value engineering and design assistance, they are able to aid in the customer's project schedule or budget.

Mensor has been designing and manufacturing precision pressure measuring and pressure calibration instruments and systems. From the very first quartz manometer for the aerospace industry to the modern CPC6050 Modular Pressure Calibrator, Mensor - now a part of WIKA Calibration Line - specializes in providing quality pressure products and services to a wide variety of industries around the world.

Merit Electric is a full-service electrical contractor, specializing in design-build electrical construction and electrical maintenance services.

Merlin Solar Technologies, like many of its Silicon Valley compatriots, was founded in a garage. The founders set out to fundamentally rethink the way solar panels were engineered with the goal of ubiquitous deployment. MerlinSolar™ is well on its way to make the world rethink what solar energy is capable of.

Meru's innovative approach to wireless networking uses virtualization technology to create an intelligent and self-monitoring wireless network. With Meru, enterprises can become all wireless, smoothly migrating their business-critical applications from wired to wireless networks.

Metro Electric’s comprehensive services include electrical infrastructure, voice data, wireless, and distributed antenna systems (DAS).

Microvast, Inc., has evolved into a pioneer in battery storage solutions for mobile and stationary applications. Microvast currently provides three different lines of fast-charging lithium-ion battery solutions, with different chemistries, performance characteristics, and price points.

MidAmerican Energy Company is obsessively, relentlessly at their service to their over 1.5 million electric and gas customers in Iowa, Illinois, Nebraska and South Dakota, USA.

Midcontinent Independent System Operator (MISO) is an independent, not-for-profit, member-based organization focused on three critical tasks: Managing the flow of high-voltage electricity across 15 U.S. states and the Canadian province of Manitoba, Facilitating one of the world's largest energy markets with more than $40 billion in annual transactions, and Planning the grid of the future.

MidSouth Electric's mission is to provide a quality service (electricity, water, wastewater, internet) at a reasonable price, bringing vital services to increase both the quality of life and economic health in the MidSouth Electric Co-op service area.

Midtown's team of experienced professionals have been delivering the highest level of service within our industry. They provide critical electrical, lighting, and data supplies around the clock to the New York Metropolitan region.

Milestone is a pioneer in home services across the DFW area. They provide same day electrical repairs, plumbing, drain cleaning, HVAC installations, window cleaning, security installations and more.

The Minnesota Rural Electric Association (MREA) is a service organization and statewide voice for Minnesota's electric utility cooperatives. MREA's 15 employees provide their expertise in service and leadership including: public awareness communications, safety training, legislative research and lobbying, and industry education programs. A member board representing electric co-ops across the state governs MREA.

MITRE ATT&CK® is a globally-accessible knowledge base of adversary tactics and techniques based on real-world observations. The ATT&CK knowledge base is used as a foundation for the development of specific threat models and methodologies in the private sector, in government, and in the cybersecurity product and service community.

Mitsubishi Heavy Industries, Ltd. delivers innovative and integrated solutions across a wide range of industries from commercial aviation and transportation to power plants and gas turbines, and from machinery and infrastructure to integrated defense and space systems.

MKD Electric is one of the Midwest’s largest full-service merit shop industrial electrical contractors, specializing in instrumentation and control systems integration.