Lennox International Inc.

Lennox International Inc. is a global leader in energy-efficient climate-control solutions. The company designs, manufactures, and markets a broad range of products for the heating, ventilation, air conditioning, and refrigeration (HVACR) markets. Founded in 1895 in Marshalltown, Iowa, by Dave Lennox, the company has grown from designing a riveted steel coal-fired furnace to offering numerous advancements in climate control. Its products and services are sold through multiple distribution channels under various brand names. Lennox operates through two business segments. The Home Comfort Solutions segment provides furnaces, air conditioners, heat pumps, packaged heating and cooling systems, indoor air quality equipment, comfort control products, replacement parts, and supplies. Key product and brand names in this segment include Lennox, Dave Lennox Signature Collection, Armstrong Air, Ducane, AirEase, Concord, MagicPak, ADP Advanced Distributor Products, Allied, Supco, LINEBACKER, Elite Series, Merit Series, Comfort Sync, Healthy Climate, Healthy Climate Solutions, iComfort, ComfortSense, and Lennox Stores. In 2025, this segment generated net sales of $3,343.4 million. The Building Climate Solutions segment offers unitary heating and air conditioning equipment, applied systems, controls, installation and service of commercial heating and cooling equipment, variable refrigerant flow commercial products, curb, curb adapters, drop box diffusers, HVAC recycling and salvage service, condensing units, unit coolers, fluid coolers, air cooled condensers, air handlers, process chillers, controls, compressorized racks, replacement parts, and supplies. Notable product and brand names include Lennox, Model L, CORE, Enlight, and Xion.