The modular water chiller was invented by Multistack. It started with a radically simple idea: water chillers made up of modules that could be brought into the equipment room one at a time, through standard doorways and down elevators, to form a fully integrated water chiller system. The modular chiller idea launched a revolution and transformed Multistack into a leader in the commercial water-chiller industry.

Munch's Supply is a wholesale distributor of Heating, Ventilation and Air Conditioning (HVAC) equipment, parts and supplies servicing the Chicago, Northwest Indiana and Michigan.

Munier Heating and Cooling, LLC. provides heating and cooling solutions and is based out of the USA.

Munters manufactures products that economically control humidity and temperature, provide energy recovery, and/or utilize direct or indirect evaporative cooling for comfort, process and environmental protection.

Murray Corporation offers a commitment to quality, dependability, and customer service that comes from more than 100 years of experience. They design and manufacture clamps and fasteners for almost all industrial and commercial hose applications. Murray clamps and fasteners being used across the worldwide agriculture, automotive, heavy-duty truck, off highway, municipal, marine, irrigation, beverage, plumbing and many other markets.

Muse Heating & Air Conditioning provides solutions like Cooling, Heating, Indoor Air Quality, Thermostats, etc, and is based out of the USA.

At Must Air USA, they provide solutions like Air Conditioning Repair, Installation, etc, and is based out of the USA.

MWSS, Inc. is a national distributor specializing in business development within the Recreational Vehicle industry. Their warehouse is located in Elkhart, IN and stocks RV Ready products manufactured by GE Appliances. They offer customers an experienced staff of Sales, Service & Delivery personnel that understand the needs and processes of RV manufacturing and how GE Appliances is helping deliver reliable appliances to those in the Recreation

My Côr Home is a US-based manufacturer, installer and supplier of thermostats, air purifier, dehumidifiers and humidifiers, ventilators, UV lights and security cameras.

At My Guy HVAC Heating and Air Conditioning, they provide solutions like Heating, Cooling, Indoor Air Quality, Thermostats, etc, and are based out of the USA.

My Three Sons Heating & Air LLC is a locally owned & operated residential HVAC company offering air conditioning, heat pump and heater services, including installation, repair, replacement and maintenance, proudly serving Charleston, North Charleston, Summerville, Mount Pleasant, Kiawah Island, Isle of Palms, Hanahan, Goose Creek and surrounding areas.

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.

Myron is a manufacturer of high quality and simple to operate conductivity and pH instrumentation. They provide Conductivity and pH instruments and controls for water treatment applications, cooling tower controllers, chemical treatment controllers, boiler water treatment controllers.

N & S HVAC provides customers with the finest selection of quality plumbing, heating and HVAC products, at affordable prices.

Manufacturers of air distribution, includes underfloor products, air control includes industrial dampers, VAV air terminal units, fan coil units, silencers, duct heaters, and air handlers.

Napco-International manufactures and supplies high quality industrial grade heating elements and supporting components to the industrial markets. They provide electric heating elements and accessory products such as HVAC heating elements for electric furnaces, heat pumps, air handlers and many more.

Napps Technology is a pioneering designer and provider of dependable, high-quality chillers, heat pumps and condensing units for commercial and industrial applications.

Nardco Heating and Air Conditioning was established in 1961 and has provided residential and commercial HVAC installation and maintenance services. They are best known for their installation services and focus on helping their customers install the most energy-efficient furnaces and air conditioners.

NATE is a nonprofit certification organization for heating, ventilation, air conditioning and refrigeration (HVACR) technicians. They provide service and installation certifications in: air conditioning, air distribution, air-to-air heat pumps, gas furnaces, oil furnaces, hydronics gas, hydronics oil, light commercial refrigeration, commercial refrigeration, ground source heat pump loop installer, and HVAC efficiency analyst.

NADCA is an international association of over 1,200 companies that provide HVAC inspection, maintenance (i.e., cleaning) and restoration services. NADCA offers standards, specifications, specialized training and certification for industry professionals.

NAEIR is a national nonprofit organization that takes in donations of excess inventory and redistributes those goods to schools and nonprofit organization.

The National Association of Home Builders represents the largest network of craftsmen, innovators and problem solvers dedicated to building and enriching communities.

The National Board of Boiler and Pressure Vessel Inspectors was created in 1919 to promote greater safety to life and property through uniformity in the construction, installation, repair, maintenance, and inspection of pressure equipment.

National Center for Construction Education and Research (NCCER) is a not-for-profit education foundation created in 1996, as The National Center for Construction Education and Research. NCCER develops standardized construction and maintenance curriculum and assessments with portable credentials.

National Comfort Institute, Inc. (NCI) is an organization that provides heating, air conditioning, plumbing and electrical contractors with a focused offering of services and tools to help them improve their businesses, differentiate themselves, grow, and become more profitable. NCI accomplishes this through membership groups and by providing unique business management, sales, marketing and technical tools, training, support and coaching.

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

An ANSI-accredited Standards Developing Organization, the National Electrical Manufacturers Association (NEMA) gives members a competitive edge in today's rapidly changing marketplace by expanding market opportunities, acquiring exclusive business intelligence, removing market barriers, building supply chain connections, and harnessing innovation.

The National Environmental Balancing Bureau (NEBB) is the premier international association of Certified Firms that perform Building Systems Commissioning, Building Envelope Testing, Cleanroom Performance Testing, Fume Hood Testing, Retro-Commissioning and much more!

The National Fire Protection Association (NFPA) is a trusted and respected fixture in the lives of safety professionals across the globe. As a self-funded nonprofit, the association strives to help save lives and reduce loss with information, knowledge, and passion. More than 10,000 volunteers make up the more than 250 technical committees responsible for publishing NFPA codes and standards.

The National Ground Water Association represents groundwater industry professionals including contractors involved in geothermal heat pump drilling and system installation.