M&M Refrigeration is the most experienced CO2 refrigeration company in the Americas. M&M has designed, manufactured, installed, and serviced refrigeration systems for 50 years—they literally have hundreds of industrial refrigeration systems around the world.

MacDonald-Miller Facility Solutions is the top choice, full-service, design-build, mechanical contractor in the Pacific Northwest. Whether you simply have a service call, or are planning a 40-story office building, we have the right team of system experts – for you and your buildings’ needs. We offer smart building services such as Plumbing, Electrical and Lightening, and HVAC maintenance.

Mace is a global expert in shaping the built environment. From development and consultancy to construction and operations, it connect expertise across the entire property lifecycle to help their clients, people, communities, and society achieve more than they believe is possible.

Mace MEP Services are an international consultancy and construction business. They shape the cities and communities of the future by connecting clients, communities, suppliers and partners. They have a highly experienced mechanical, electrical and public health (MEP) team that drives efficiency and value on site by offering specialist contracting capability that drives value and efficiencies on one of the largest construction packages on site.

MacLellan Integrated Services provides critical process cleaning services, process equipment and robotics maintenance, production line side support, sludge and wastewater management, HVAC and mechanical services and general facility maintenance. Their work environments include automotive, aerospace, and general industrial applications.

Macnica is a global supplier of semiconductors, electronic components, network equipment, software products and various services to customers worldwide in the electronics and enterprise IT markets. Macnica Networks, a Macnica company headquartered in Yokohama, Japan, covers enterprise IT and communication carrier market with network equipment and security solutions.

Madison Industries is a globally-renowned mechanical engineering, HVAC equipment and industrial automation solutions firm conglomerate based out of Chicago, Illinois, USA. The conglomerate believes and strives in providing a safer and healthier world, with state-of-the-art electronics, HVAC equipment, home and building automation systems that are energy efficient and cost effective.

Established in 1989, Malek Service Company has been a trusted provider of residential and commercial plumbing and HVAC services in College Station and Central Texas for over 30 years. Their team of experienced and licensed technicians offers a wide range of services, from air conditioning repair and heater maintenance to comprehensive plumbing solutions. They specialize in air conditioning, heating, plumbing, and electrical services.

At Malek Service Company, they recognize the urgency of resolving home service issues promptly and effectively. Their skilled technicians serve around the clock, ensuring swift and dependable solutions. Malek Service Company has been dedicated to serving the College Station area for an extended period, establishing a renowned reputation for excellence and dependability.

Mallory has provided industrial organizations with safety expertise and supply chain efficiency along with a broad array of safety products and solutions. They provide HVAC and refrigeration products, valves, hose, plumbing materials, Pipe, Tubing & Hoses Accessories, shut-off valves and much more.

Mammoth Fans is proud to introduce a new series of fans that are set to revolutionise commercial cooling. The Mammoth Fan range features world class Permanent Magnet Synchronous Motor (PMSM) technology and precision-led aerodynamic design in Mammoth proportions.

In 2022, the Professional Plumbing Group (PPG) joined the Marcone Group. PPG and its affiliated companies – which have a history stretching back 150 years – design, manufacture, market and distribute high-quality plumbing products and solutions.

Motors and Armatures (d.b.a. MARS) is a family-owned and operated supplier of quality motors, components, and service/installation parts for the HVAC-R industry. The company distributes its own extensive MARS and JARD branded aftermarket replacement products, as well as the original equipment components of leading manufacturers.

Martin Brower is an innovative global supply chain leader providing end-to-end solutions for restaurant chains across 18 countries. They are a company with innovation at the core, where ingenuity is continually encouraged and imagination is carefully nurtured. It is a multi-billion dollar company, fueled by constant innovation, enduring customer loyalty and smart acquisitions.

Martin Systems, Inc. is a Wisconsin based systems integrator specializing in integrated security, HVAC systems, fire protection, and life safety. They provide HVAC Systems, Commercial Security, Office Security, Alarm Systems, Camera Surveillance, Access Control, Home Security, Fire Protection, Home Automation, Security Systems, Burglar Alarm, Door Access Control, Fire Alarm, Life Safety, Fire Alarm Inspections, Fire Protection, CCTV solutions.

Mascot Mechanical, LLC has been providing outstanding air conditioning and heating service for more than 10 years in DFW Metroplex.

Mast is a German manufacturer of quality pumps for the fire brigade, civil protection, for municipalities, the construction industry or domestic use. In the extensive "Made in Germany" pump range, Mast offers basement drainage pumps for domestic use in floods.

Masterflow is an expert at solving the fluid problems facing design engineers. They’ve been proudly supporting the Australian building industry for over 20 years. Their capabilities range from pioneering engineering solutions, consultation, product supply, installation, maintenance and repairs.

Masterwatt is a historical company specialized in the production of electric heaters for industrial use. Masterwatt offers heating solutions for the plastic production, oil & gas, refinery, chemical and offshore applications sectors.

Matrix is the technology services company in Israel, with 10,820 employees worldwide. Since its foundation in 2001, Matrix has made more than 100 mergers and acquisitions and has executed some of the largest IT projects in Israel. The company specializes in the implementation and development of leading technologies ,software solutions and products, providing its customers with infrastructure and consulting services.

Max Weishaupt GmbH is a company based in Germany that is a renowned provider of burners, heating and condensing-boiler systems, solar technology, heat pumps and building automation.

Maxim Air has built a reputation for quality air conditioning installation and services in the North Shore and Castle Hill in the Hills District of Sydney NSW and across Sydney. They have more than 15 years of experience working with all types of cooling and heating systems for residential homes and commercial buildings.

MAXVAC continuously improves and develops effective machines and accessories by incorporating the latest regulations & technologies in its designs. They also listen to the customers and develop products to make the working environment a safer place to be.

MB Frigo provides controlled temperature conditions for all residential, commercial and industrial needs by installing customized systems according to the specific needs of the user. They see their future in the development of innovative, flexible and sustainable solutions in the field of air conditioning and refrigeration technology that improve the business processes of the customers and partners.

MB Plumbing & Heating takes pride in themselves on offering a hassle free and affordable service where the customer needs always take priority. As a company they are confident that they can meet all the requirements on the next plumbing and heating project and exceed the expectations when it comes to quality and affordable plumbers in Scunthorpe and the surrounding areas.

McCarty Bros. Inc. has been in the business of maintaining HVAC systems in the Chicagoland area for over 70 years. They do know a thing or two about it. They have service maintenance customers who have been with us for over 50 years.

McKinstry is a US-based energy efficient systems and advanced renewable energy systems firm. From new construction and ongoing operations to adaptive reuse, energy retrofits and advanced renewable energy systems, McKinstry provides a single point of accountability across the entire building lifecycle. Services offered include Energy Performance Contracting, Energy Services, Smart Buildings, Renewable Energy, Zero Energy and Energy Audit.

The Mechanical Contractors Association of America (MCAA) serves the unique needs of approximately 2,600 firms involved in heating, air conditioning, refrigeration, plumbing, piping, and mechanical service.

MSCA is a renowned organization for HVACR contractors, providing education, marketing, and labor/management services to assure its contractor members deliver quality performance, value and expertise for all building system needs.

Meek Refrigeration Inc. is a full service company specializing in Refrigeration, HVAC, Contracting, and Sheet-Metal/Ductwork. They are experienced in commercial and residential applications and carry a commitment to service and quality workmanship.