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.

Mechanical Sales, Inc. is an Independent Manufacturers’ Representative for Commercial and Industrial - Heating, Ventilating, and Air-Conditioning (HVAC) systems. They provide HVAC applications expertise to system design professionals, generating custom equipment selections, delivering superior installation contractor support, providing professional factory authorized system start-up and warranty support.

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.

At Mechanical Services Inc., they provide solutions like heating, cooling, indoor air quality, etc, and is based out of the USA.

For over 50 years, Mee Industries has consistently set the standard, opening new frontiers in high-pressure fog applications for a wide range of industries.

Mee Industries, Inc. is a high technology company with a proven track record of providing innovative cooling and humidification solutions using the natural power of fog. Fog is a cost effective and environmentally beneficial solution for diverse applications including data center cooling, gas turbine inlet air cooling, HVAC & industrial humidification, outdoor air conditioning, greenhouse climate control and special effects.

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.

Meier Supply is an employee-owned wholesale distribution business with a rich history and family culture. With five distinct divisions, they provide service and support throughout the HVACR community in NY and Pennsylvania.

For over 30 years, Melink has been executing clean energy solutions for clients worldwide, lowering carbon emissions while increasing building values and raising company profitability.

In 1991 Fred Lampropoulos, Chairman and CEO of Merit Medical Systems, founded Sentir Semiconductor. The company’s first pressure sensor was qualified for production in 1993, and in 1997 the company’s annual sensor sales surpassed 1 million.

Merril Sheet Metal Inc. is a full-service HVAC company that has been serving Central & North Central Wisconsin since 1913. They are a family owned and operated HVAC company.

Mesaba Heating, A/C and Plumbing is the one stop shop that provides complete HVAC and plumbing services in Hibbing, MN. They endeavor to provide the best service possible to the clients.

Mestek Machinery is the industry-leading designer and manufacturer of the most complete, productive, and innovative metal forming solutions for the fabrication of HVAC sheet metal ductwork and fittings.

Mestek, Inc's HVAC equipment group and controls group is among the foremost manufacturer of heating, ventilation, and cooling products including residential and commercial hydronic heating equipment with intelligent controls and air conditioning.

Met One Instruments Inc. provides reliable, affordable, precision instrumentation for monitoring ambient and indoor air quality.

Metal Form Manufacturing, Inc designs and manufactures ventilation, security and sound reduction solutions. Their products also include louvers, dampers, gravity vents, security grilles, acoustical louvers, roof curbs, air washer, pre-coolers and evaporative coolers.

Metal-Fab offers the most complete line of chimneys, vents, special vent for condensing appliances, fume exhausts, engine exhausts, and factory-built kitchen ventilation systems available.

METALFLEX has grown to become a nationwide company, serving the HVAC, plumbing, utility, industrial, food, oil and petrochemical industries, with 100% of our design, engineering, and manufacturing facilities done within the U.S.A.

At Metal Form Manufacturing Company their capabilities include the analysis, distribution and manufacturing of a wide range of Air Control, Sound Control and Evaporative Cooling Products for Commercial, Industrial, Institutional and Residential applications.

Meticulous Market Research Inc. is a trusted research partner for businesses around the world, providing market intelligence focused on building revenue transformation strategies. Its research is used by Fortune 500 organizations to attain success by scouting next-generation revenue opportunities well ahead of their competition.

Manufacturers of the innovative Metraloop expansion joint for thermal/seismic movement, Cablesphere, SDF and VaneFlex flow conditioning connectors, Metraflex makes a variety of engineered piping products.

Metrex has designed and manufactured innovative Pressure, Thermostatic, Electric and Electro-Hydraulic Actuator valves, as well as, HVAC Water Regulating and Seawater Condenser Regulator Valves. They are the most trusted name in refrigeration and heat transfer solutions in the world.

Metro Express Service has been serving the North Texas area with pride as one of the residential and light commercial HVAC service companies in the Dallas Fort Worth area ever since.

Metro Heating & Cooling is a family owned and operated HVAC Company in St. Paul, MN. They have been providing the highest quality of air conditioning and heating repairs, installations and products to both residential and commercial customers. They are licensed, insured and bonded.

MetroTech has provided HVAC solutions leveraging a technology-enabled modern work order management system throughout the US since 1986. MetroTech Service Corporation is a privately held HVAC service company providing preventive maintenance, emergency service repairs, and HVAC design/installation services to prominent multi-site commercial and retail customers across the United States.

Manufacturer of BACnet and LonWorks I/O modules, terminal blocks and RJ45 connectors.

Meyer Machine Supply & Equipment LLC is a renowned US-based manufacturer of electric and gasoline powered vacuums for air duct and dryer vent cleaning, as well as a complete line of supplies.

MFM manufactures FlexClad, a self-adhering jacketing system for waterproofing interior or exterior ductwork and pipes. Easy installation and 10-Year Limited Warranty.

Miami Heating & Cooling is a full service heating and air conditioning company that specializes in fulfilling HVAC needs of both residential and commercial customers.

Micek Heating & Air LLC is a local heating and cooling specialists based in Omaha, NE. They are bonded, insured and committed to providing the best possible service to the customers.