What Lennox International Inc does.

References in this Annual Report on Form 10-K to “we,” “our,” “us,” “Lennox,” “LII” or the “Company” refer to Lennox International Inc. and its subsidiaries, unless the context requires otherwise.

We are a global leader in energy-efficient climate-control solutions. We design, manufacture and market a broad range of products for the heating, ventilation, air conditioning and refrigeration (“HVACR”) markets. We have leveraged our expertise to become an industry leader known for innovation, quality and reliability. Our products and services are sold through multiple distribution channels under various brand names. The Company was founded in 1895, in Marshalltown, Iowa, by Dave Lennox, the owner of a machine repair business for railroads. He designed and patented a riveted steel coal-fired furnace, which led to numerous advancements in heating, cooling and climate control solutions.

Our two business segments, Home Comfort Solutions and Building Climate Solutions, the key products, services and well-known product and brand names within each segment and net sales in 2025 by segment are shown in the table below. Segment financial data for 2025, 2024 and 2023, including financial information about foreign and domestic operations, is included in Note 3 of the Notes to our Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” and is incorporated herein by reference.

Revenue and profit, by fiscal year.

More on LII.

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• Lennox International Inc earnings
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Figures from Lennox International Inc's filings with the U.S. SEC, standardised automatically; prices are end-of-day closes. Not financial advice.