5 Biggest HVAC Companies in the USA

4. Lennox International Inc. (NYSE:LII)

2021 Revenue: $4.19 billion

Lennox International Inc. (NYSE:LII) is a Richardson, Texas-based publicly listed manufacturer of HVAC equipment for residential and commercial purposes founded in 1895. The company also provides a wide variety of HVAC products to fulfill large commercial and industrial applications.

Lennox International Inc. (NYSE:LII) is known for its innovation in technology and design. The company’s variable speed and communication systems are designed to provide optimal performance. Lennox International Inc. (NYSE:LII) provides quality products in installments with no markup for six months and offers a rebate of up to $1,700. The company has a diverse range of product lines related to heating and cooling, comfort controls, indoor air quality enhancement, and other systems for its customers.

Millennium Management raised its stake in Lennox International Inc. (NYSE:LII) by 109% during Q3 2022.

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