LENNOX INTERNATIONAL INC

Lennox International Inc. (NYSE: LII) operates as a global leader in energy-efficient climate-control solutions, designing, manufacturing, and marketing a comprehensive range of heating, ventilation, air conditioning, and refrigeration products for residential and commercial markets across North America. The company was founded in 1895 and maintains its website at www.lennox.com.

The company operates through two primary business segments. Home Comfort Solutions generates approximately 64 percent of revenue and encompasses residential furnaces, air conditioners, heat pumps, packaged systems, indoor air quality equipment, and replacement parts sold under brands including Lennox, Dave Lennox Signature Collection, Armstrong Air, Ducane, AirEase, and Concord. This segment distributes products through company-owned Lennox Stores, independent wholesale distributors, and direct sales to installing contractors. Building Climate Solutions contributes approximately 36 percent of revenue and includes commercial unitary equipment, applied systems, controls, installation and service offerings, variable refrigerant flow products, and commercial refrigeration equipment marketed under brands such as Lennox, Heatcraft Worldwide Refrigeration, Bohn, and others.

As of December 31, 2025, Lennox employed approximately 12,900 people, with roughly 8,500 in the United States and 3,200 in Mexico, comprising approximately 5,400 salaried and 7,500 hourly workers. The company operates manufacturing facilities across North America and maintains a 50 percent joint venture interest in Mexico for refrigeration product manufacturing. Lennox also holds minority equity interests in joint ventures with Ariston Group for water heater distribution and with Samsung for ductless air conditioning and heat pump products.

The company generated total net sales of $5.195 billion in 2025. Lennox maintains a portfolio of well-established brands developed through organic growth and strategic acquisitions, including the October 2025 acquisitions of Duro Dyne and Supco, which manufacture HVAC parts and supplies. The company leverages advanced manufacturing techniques including lean manufacturing and Six Sigma methodologies, operates a centralized strategic sourcing organization, and maintains robust research and development capabilities focused on next-generation control systems and high-efficiency products. Approximately 26 percent of the workforce is unionized, with a five-year labor agreement ratified in November 2021.