Midwest Heating, Cooling & Plumbing service and maintain all makes and models of furnaces and air conditioners in the customer's homes. When they need a new system, they select only the most reliable systems from Trane or Lennox for the customers.

MidWest Materials is a Steel Service Center providing coated, hot rolled, HRPO and cold rolled steel in coil, sheet or plate. Processing includes stretch leveling, corrective leveling and more.

Midwest is a leading wholesale supplier of HVACR equipment and service parts. They mostly serve their Northern Michigan markets.

Midwest Tool, manufactures tradesman quality hand tools for the HVAC/metalworking market. As a pioneering innovator and manufacturer of metal cutting snips and specialty hand tools. Midwest has developed and owns numerous product design and utility patents that enhance Midwest product performance.

Mike Mulligan Refrigerants provides HVAC Contractors with customizable R-22 Refrigerant Buyback Programs and Direct Refrigerant Sales.

Mike’s Bremen Service has merged with Comfortmate Heating and Air. Both family-owned companies are well versed to install and service all heating and cooling equipment, as well as most appliances. They look forward to continuing to serve all customers heating, cooling, and appliance repair needs.

Mill Creek Heating has been serving the Willamette Valley of Oregon since 2003. They are a family owned and operated business. They care about the family’s comfort, health and safety.

Miller-Leaman, Inc. was founded in 1991 by Bill Miller, Marty Shuster and Robert Leaman. With over 28 years of experience in manufacturing filtration products for our customers, Miller-Leaman, Inc. has the know- how and credibility to deliver the right product.

Milwaukee Valve provides valves and actuators for industrial, commercial, fire protection, dry bulk hauling, marine industries, ball, butterfly, gate, globe, check valves, and actuation.

As the southeast’s distributor of heating, cooling and ventilation products, Mingledorff's work closely with exclusive brands such as Carrier, Bryant, Heil, and more.

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.

MLD HVAC Services is committed to offer reliable HVAC services for clients. They are a BBB Accredited Business offering a guarantee of quality craftsmanship on all the woks they deliver. Their major services are confined within preventative maintenance, heating & cooling services and provision of quality energy solutions.

Modern Refrigeration Services is the premier HVAC company that provides dependable HVAC services in Houston, TX. They have gained the customer’s trust through the dedication, hard work and quality & courteous service.

Modine is one of the most trusted names in the HVAC manufacturing industry. They serve a variety of markets, providing residential HVAC, geothermal heating and cooling, commercial rooftop HVAC systems, classroom HVAC and more. Along with heating and cooling systems.

Modine Manufacturing Co. provides custom design and manufactured plate fin and tube heat exchangers, micro-channel, all aluminum coils, tubular heat exchangers, fluid and unit coolers, and air cooled condensers.

Morgan Corporation is the premier producer of truck bodies and van bodies in North America. They specialize in the manufacture of dry freight van bodies, custom cargo truck bodies, refrigerated truck bodies and stake/platform bodies.

MSA Bacharach is a pioneer in the design, manufacture, and service of combustion gas analysis and refrigeration leak detectors, and monitoring instrumentation. MSA Bacharach products make the heating, ventilation, air-conditioning, and refrigeration (HVAC-R) industry safer, cleaner, and more efficient.

Established in 1914, MSA Safety Incorporated is the global pioneer in the development, manufacture, and supply of safety products that protect people and facility infrastructures. Many MSA products integrate a combination of electronics, mechanical systems, and advanced materials to protect users against hazardous or life-threatening situations.

Mueller Industries provides its customers with the best products, services, and support in the HVAC/R industry. They offer one of the most complete lines of HVAC and Refrigeration products available from a single source.

Mueller Refrigeration is a pioneer in the design and manufacturing of premium-performance valves, protection devices, and brass fittings for various OEM customers in the commercial HVAC/R industry.

Myers Mechanical Solutions, LLC intends to offer the best heating and cooling solutions for clients. Their firm was commenced in 1999 to offer industrial/commercial HVACR services.

NCE is a supplier of new and remanufactured air conditioning and refrigeration compressors for commercial, industrial and transportation applications.

National Craft, a global supplier of precision products, covers the product lines of, but not limited to Plumbing; Hardware; Building Material; Dispensers for Beverage, and Waterworks.

National Refrigerants, Inc. (NRI) is an independent worldwide distributor of refrigerants and all associated refrigerant management services. They provide refrigerant recovery, reclamation, recovery equipment, refrigerant and oil analysis, packaged and bulk refrigerant and alternatives, refrigerant banking, cylinder refurbishment/recertification.

NAVAC is a global manufacturer that has dedicated over 20 years to the R&D and manufacturing of industrial vacuum solutions and HVAC/R tools. NAVAC draws upon its commitment to technical innovation, strong customer service, and robust R&D allocation to deliver solutions offering unsurpassed efficiency, accuracy, and ease of use.

NB Heating & Air Conditioning installs, maintains and repairs residential and light commercial Heating – oil, gas, electric, boiler, and radiant Air conditioning – electric, heat pump and gas Air quality systems – filtration, UV, whole house solutions We provide services throughout Central and Northern Virginia.

As a trusted partner in HVAC, Refrigeration, and Hydronics components, NDL Industries is here to provide solutions that enhance efficiency, reliability, and sustainability for their projects. Starting out producing a more advanced ACR copper fitting, they now offer high-quality components spanning 14 different product categories.

Nelumbo is commercializing a new platform of structural materials. The company’s current focus is on developing improved heat exchangers for the HVAC market.

Neoperl is a manufacturer of faucet aerators, check valve cartridges, insert flow regulators, faucet attachments, laminar devices, sprays and adapters.

Nester Heating and Air Conditioning is a full-service Heating, Ventilation, and Air Conditioning (HVAC) services contractor operating in San Diego County and neighboring areas. It provides commercial and residential heating and cooling services, which include: installation, troubleshooting, repair, maintenance, tune-ups, as well as pull-out and safe dismantling of damaged or old heating and cooling units.