LUDECA's goal is to be the premier provider of reliability solutions and technologies to industry. They provide maintenance solutions including laser shaft and belt alignment, ultrasound, induction heating, vibration analysis and balancing equipment as well as rentals, software, services and training.

Manufacturer of high quality sheet metal pipe, duct and fittings selling to the wholesale HVAC industry since 1964 with four manufacturing locations in Ohio, NC, WI and NE serving over 29 states and Canada.

Lumi United Technology Co., Ltd. (Aqara) specializes in the design and development of intelligent hardware and software solutions for smart home and corporate applications. Lumi is committed to applying the best industrial design, proprietary low energy consumption know-how, robust IoT software, cutting -dge AI technologies, and unyielding cost savings to provide the premier smart home experience.

Lutron Electronics is a manufacturer of energy-saving light, shade, and temperature controls for new and existing homes and offices.

LUX Products is an innovator in home comfort control systems and solutions. It has revolutionized how the thermostat is used in the home through cutting-edge product design and forward-thinking mobile services. LUX is a global industry company offering a wide variety of superbly designed, feature-appropriate, reliable thermostats for every home, project and budget.

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.

Luxriot is a software development and solutions company that develops intelligent video management software for the security industry. Luxriot operates globally through the broad network of partners and resellers.

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.

M2 Thermal Solutions LLC solves major engineering challenges in energy efficiency with solutions based on first principles. They design, manufacture, and commercialize thermal systems with innovations in the design and synthesis of custom chemical sorbents, selectively permeable membranes, compact heat exchangers, and integrated control systems.

M2S Electronics is a global provider in the design and assembly of electromechanical and electronic integrated systems. They offer personalized solution platforms for HVAC (Smart thermostats, HVAC controllers, equipment power units).

The Ma-Line Division of Monti and Associates Inc. provides access to specialized products for wholesalers in the HVAC/R industry. The MA-Line prides itself on maintaining the highest level of customer service.

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.

MacroAir invented and patented HVLS fans in the 1990s and has continued the market through engineering excellence and continuous innovation. MacroAir products are unparalleled in craftsmanship, quality, and reliability.

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.

Madison Industries is a globally-renowned mechanical engineering, HVAC equipment and industrial automation solutions firm conglomerate based out of Chicago, Illinois, USA. The conglomerate believes and strives in providing a safer and healthier world, with state-of-the-art electronics, HVAC equipment, home and building automation systems that are energy efficient and cost effective.

Magic Aire is an independent manufacturer of Heating, Ventilation, and Air Conditioning (HVAC) components, fan coils, air handlers, and unit ventilators. The company sets the industry benchmarks for on-time delivery, ease of doing business and lowest warranty rates.

Magic-Pak is a US-based provider of solutions, including heating and cooling solutions, single packaged vertical units (spvu) and other HVAC solutions. Magic‑Pak units are perfect for apartments, condominiums and other multiple occupancy buildings. Magic‑Pak simplifies specification, installation, maintenance and ownership.

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

Mallory has provided industrial organizations with safety expertise and supply chain efficiency along with a broad array of safety products and solutions. They provide HVAC and refrigeration products, valves, hose, plumbing materials, Pipe, Tubing & Hoses Accessories, shut-off valves and much more.

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.

Manchester Tank & Equipment Co. has been a trusted industry leader in the design and manufacture of steel and aluminum low-pressure DOT cylinders and ASME pressure vessels for the storage and transport of propane, chemicals, compressed air and other industrial applications since 1946.

Manchester Tool & Die supplies tube end forming equipment and tooling to a variety of industries, with machines ranging from 3/16" to 3" O.D. capacities.

Marathon Motors manufactures thousands of products including single and three phase AC, NEMA and IEC, low and medium voltage, PMDC, and radial and axial flux motors.

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.

Markel Products is a renowned provider of commercial, industrial, residential electric heating equipment, industrial ventilation, controls, industrial lighting, portable air conditioning and portable evaporative cooling solutions.

MarketAir Inc. are renowned US-based manufacturers, importers and distributors of installation components and accessories for the installation of ductless, ducted and VRF Air Conditioner systems.

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

Marley Engineered Products, LLC provides comfort heating, cooling and ventilation solutions for commercial, industrial, and residential use. The product brands include QMark, Berko, Fahrenheat and Leading Edge. The company's products inventory includes commercial, industrial and residential electric baseboard, unit, wall, radiant and portable heaters, inline and whole house ventilation, industrial and commercial ceiling fans, air curtains.

Marlo Heat Transfer Solutions provides heating and cooling coils, custom fabricated coils, air handling units, refrigeration systems, coolers and condensers for industrial, commercial, navy and maritime HVAC/R systems. The industrial heat transfer products are manufactured from quality materials typically in heavier grades and thicknesses. This ensures dependable performance and years of service, even in the most demanding conditions.