10 Largest HVAC Companies in the USA

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10. Siemens Building Technologies

Revenue in USD Mn: 1403.04
Market Share: 5.40%
Employees in number in the USA: 5740

One of the largest global conglomerates in the electrical and automation space, Siemens also has dedicated division for building technologies catering to HVAC requirements in USA market. It also offers training through its BT University to its customers with a view to increasing energy efficiency.

10 Largest HVAC Companies in the USA

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