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

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

LePrevost Plumbing, Heating & Cooling is a nationally recognized company based in Lee, Massachusetts. For the past sixteen years, they have provided commercial and residential services to both the seasonal and year-round residents of Berkshire County. They specialize in the service and installation of all heating and domestic hot water systems for new construction and existing homes.

Representing quality manufacturers of commercial and industrial heating, cooling, humidification, dehumidification and refrigeration equipment, "We Sell Solutions to Problems" in GA, AL, TN.

Linear Labs, a smart electric motor company based in Fort Worth, Texas, created an entirely new and versatile electric motor system design that will redefine mobility (ie electric vehicles), HVAC systems and robotics.

Littelfuse is an industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 15 countries, and with 19,000 global associates, they partner with customers to design and deliver innovative, reliable solutions.

Lizard Monitoring was formed to simplify and automate data collection, aggregation, and trend analysis of data in physical infrastructure. They provide complete visibility and audit trail to the cold chain for food and pharmaceutical products, in manufacturing, distribution and retail.

LM Air Technology is a manufacturer of Polypropylene fumehoods, laminar flow wet process workstations, casework, hardwall/softwall cleanrooms and fan filter modules.

Low Cost Air Conditioning and Heating Repair and Services LLC offers viable solutions to its customers. Based in Whittier, CA, they provide a wide variety of refrigeration & HVAC repair, installation, maintenance, and inspection services.

Luxaire® is a premier line of high performance heating and air conditioning equipment, continually setting the standard in features and innovation. Their products include gas furnaces, split system air conditioners, split system heat pumps, ductless mini-split systems, packaged cooling and heating units, packaged heat pump units, air handlers, evaporator coils, indoor air quality, thermostats & controls.

Lynxspring embraces open software and hardware platforms and develops, manufactures and distributes edge-to-enterprise solutions and IoT technology for today’s intelligent buildings, energy management systems, equipment control and specialty machine-to-machine applications. They provides total Niagara based control strategies and solutions to OEMs.

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.

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.

Malco Products SBC is a US-based manufacturer of specialty hand tools, fasteners, accessories, zip ins and other HVAC tools.

The Mammoth brand has been creating a comfortable indoor climate for both industrial and commercial customers. Mammoth manufactures custom commercial products that include factory-packaged rooftop systems, pre-fabricated mechanical equipment rooms and direct replacement rooftop units. All of these different products strive to improve air quality and reduce operating costs.

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.

Marley Cooling is a globally renowned manufacturer of fluid coolers, cooling towers, fans, cooling tower components, cooling systems, media filters and evaporative cooling technologies.

Since 1962, Mars Air Systems has been a renowned developer of air curtain technology to enable buildings to be more comfortable, sanitary friendly and energy efficient. With an expansive product line that offers solutions across every industry, count on Mars to solve problems and advance atmospheric conditions that save money and create safer working environments.

MasTec Network Solutions is fully qualified and staffed to handle upgrades and maintenance on HVAC, generators, power plants and batteries. MasTec Network Solutions has performed tens of thousands of site & shelter inventories, site inspections and tower mappings.

Heating and cooling products for residential and light commercial industries, including the 25.5 SEER iQ Drive air conditioner and heat pump.

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.

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.

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.

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

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.

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 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.