Marafiq's main objectives include operating, maintaining, managing, expanding, and constructing seawater cooling systems, desalinated and treated water systems, sanitary and industrial wastewater systems, electric power and gas systems. This is done in order to provide essential utility services to its key operations in Jubail, Yanbu, Ras Al-Khair, Jazan, and Jeddah.

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.

Marsons Limited is a multi-product and service organization engaged in manufacturing, supplying, erecting, testing and commissioning of Power and Distribution transformers with incredible distinction and credibility over the past 60 years. Owing to adherence to International Quality norms and prompt Customer Service, Marsons has developed an excellent brand image and is an ISO 9001:2008 certified Company

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.

Mass-Tech Controls Pvt. Ltd. offers total solution right from Battery sizing up to installation and commissioning and handing over the DC system as total package. Their wide range of DC system covers almost all applications viz. Switchgear protection, Instrumentation & Scada, Communication & Telecom, Railways.

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.

MAW Electrical are fully accredited electricians with over 30 years experience at carrying out Full and Part Rewires of properties.

Maxeon Solar Technologies is Powering Positive Change™. Headquartered in Singapore, Maxeon designs and manufactures Maxeon® and SunPower® brand solar panels, and has sales operations in more than 100 countries, operating under the SunPower brand in certain countries outside the United States.

MaxSolar is also active in the field of energy storage systems, charging infrastructure, and future heating solutions and appears with the brand "esolution by maxsolar". and "meineWärme by maxsolar" on the market.

MBE succeeded during the last four decades in becoming one of the leading suppliers and manufacturers in the Egyptian market of Low Voltage Electrical supplies such as protection devices, automation devices, control devices, and distribution panel boards.

MBDA is the only European group capable of designing and producing missiles and missile systems to meet the whole range of current and future needs of the three armed forces.

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.

Medha Servo Drives Pvt. Ltd. has used Research and Development as a tool for success and they are proud to be known for their product range, domain knowledge, design expertise, quality, and manufacturing capabilities.

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.

Megacon develops products and services for logging and control of electricity and energy. Measurement collection with the Energy portal MC-Web. Products for earth fault monitoring. Load disconnector, backup power switch, earthing switch.

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.

Megha Electrical Services is involved with a variety of electrical work, ranging from domestic to industrial installations and electrical contracting. In conjunction with their general electrical work, Megha Electrical Services has successfully completed larger contracts with electrical consultants.

At Mehai Technology Limited, they are passionate about delivering value to the customers. They believe that everyone should have access to the latest electronics at affordable prices, and they are committed to making that vision a reality.

MEI Power Private Limited, one of the manufacturer & exporter of power and distribution transformers in India, has grown with the challenges of the Indian & international power utilities / organizations.

Alongside conventional electric power company business, Meidensha Corporation focuses on business areas designed to help achieve a carbon-neutral economy. It is working increasingly on small and medium-sized hydroelectric power generation projects and O&M projects for hydroelectric and wind power generation

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.

Melton Renewable Energy is one of the main generators of renewable energy in the UK. They have been operating for over 20 years and form an important part of the regional energy mix across the UK. They are committed to working towards a net zero future and are exploring opportunities for decarbonizing their operations.

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.