Lattner manufactures electric steam and hot water boilers as well as gas-fired steam boilers and blowdown separators.

A worldwide leader in residential and commercial heating and air conditioning systems, Lennox Industries Inc. is based near Dallas, Texas.

Marlo is a manufacturer of Modular Air Handling Units (AHU’s), Cooling, Heating, Steam, DX (refrigerant) coils, shell & tube heat exchangers and various equipment for the Military.

Lochinvar is the producer of energy-efficient water heating solutions that are radically simple, brilliantly engineered and perfectly suited for most any application. They focus solely on serving the unique needs of each customer with a product portfolio including boilers, water heaters, pool heaters, cogeneration products and commercial package systems.

Macurco Gas Detection is a division of Aerionics Inc., and is a global provider of rapidly deployable connected, intelligent gas detection systems that enable real-time safety and toxic threat detection. Macurco designs, develops and manufactures a full set of fixed and portable gas detection monitors for the protection of workers, responders and the community.

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.

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.

Representing quality HVAC/R manufacturers in Illinois, Indiana, Wisconsin, Minnesota, Dakotas and the UP of Michigan. They also offer warehousing services in 42,000 square foot warehouse in Chicago.

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

Midwestern Mechanical, Inc. with Copper Cottage is an industry-renowned company that offers superior plumbing, heating, air conditioning, and fire protection services. They also handle various heating, air conditioning, and indoor air quality systems including, Furnaces, Boilers, Heat pumps, Thermostats, Air conditioners, Ductless mini-split ACs, Air purifiers, Air cleaners, Humidifiers and In-floor heating solutions.

Milestone is a pioneer in home services across the DFW area. They provide same day electrical repairs, plumbing, drain cleaning, HVAC installations, window cleaning, security installations and more.

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.

Mitsubishi Electric Trane HVAC US LLC (METUS) is a provider of ductless and VRF systems in the United States and Latin America region. METUS provides innovative products, systems and solutions capable of cooling and heating any application from a home to a large commercial building.

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.

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.

Navien, the provider of condensing technology, uses innovative technology to manufacture energy efficient products that provides the ultimate comfortable living experience and a healthier environment.

Nyle Systems is a manufacturer of commercial energy-efficient heat pump water heating systems.

Ohio Heating and Refrigeration (OHR) provides commercial and residential HVAC, boilers, building automation, commercial refrigeration, fabrication, and food service equipment.

Parker Boiler is the manufacturer of Industrial steam boilers, hot water boilers (direct, indirect and condensing), high-temperature liquid heaters, water heaters, tanks and heat exchangers.

Patterson-Kelley serves the commercial heating industry with the most respected products in the field. They provide Commercial Boilers, Commercial Water Heaters, Fabricated Systems, Commercial Solutions, Heating Solutions, Engineeering Solutions and much more.

Pennco's hydronic heating products, designed for residential and commercial buildings, have earned a reputation for exceptional value, high performance and dependability. Built with high quality components and standards, Pennco gas and oil-fired boilers are manufactured by the company's dedicated workforce in the U.S.A. to ensure that customers get the very best in home heating comfort.

Pickrel Brothers is one of the Midwest's providers of pipe, valves, fittings, plumbing, heating and industrial supplies. They also provide boilers and hydronic equipment, heating and cooling coils, unit heaters, water softners, plumbing fixtures and much more.

Preferred Utilities MFG is an engineering-based manufacturer of fuel oil handling systems, boiler instrumentation and controllers, high quality burners, nuclear power plant outage reduction tools, and related component parts for commercial, institutional, and industrial facilities. Their manufacturing, engineering, and administrative headquarters is located in Danbury, Connecticut.

Propous is one of the largest independent suppliers of gas and oil burner’s spare parts, valves, air heaters, and HVAC products. The success of the company can be attributed to its efficiency, reliability, technical knowledge and an understanding of the customer’s requirements.

Raypak Inc. is a company that offers heating and hot water supply boilers, hydronic heating systems, swimming pool and spa heaters.

Rite manufactures and provides Low and High Pressure Steam Boilers, Hot Water Boilers, Blow down Tanks, Boiler Feed System, Water Softeners, Chemical Feed Systems, and more.

Robertshaw has been creating and implementing innovative solutions throughout its history. Robertshaw continues to develop ground-breaking solutions that make products more effective, more efficient, and more attainable. They specialize in air conditioning, cooking. dishwashing, refrigeration, heating products.

ROBUR S.p.A offers single phase, gas-fired absorption heatpumps, chillers and chiller-heaters for residential and commercial comfort conditioning and industrial process cooling applications.

RunTru is a dependable HVAC brand, but at a price point that makes it the answer to heating and cooling needs. This new product is also designed, engineered, tested, and assembled in America.

Sauer is the full service Mechanical Contracting Company providing HVAC, Industrial Piping, Plumbing, Instrumentation, and Maintenance Services. Sauer Group is a division of Sauer Holdings Inc., headquartered in Pittsburgh, Pennsylvania.