FIXComfort Systems USA

Comfort Systems USA, Inc., a Delaware corporation, was established in 1997. We provide mechanical and electrical contracting services. Our mechanical segment principally includes heating, ventilation and air conditioning (“HVAC”), plumbing, piping and controls, as well as off-site construction, monitoring and fire protection. Our electrical segment includes installation and servicing of electrical systems. We build, install, maintain, repair and replace mechanical, electrical and plumbing (“MEP”) systems through our 50 operating units with 190 locations in 142 cities throughout the United States.

Headquarters

Houston, TX

Country

United States

Reports in

USD

Listed on

NYSE

Fiscal year ends

December 31

Last results

Oct 22, 2026

Employees, at the top of the page: "Employees - As of December 31, 2025, we had approximately 22,700 employees as compared to approximately 18,300 employees as of December 31, 2024" (10-K). Address and exchange: SEC's company file.

Permanent link, kept if the ticker changes: /c/sec:0001035983 (SEC's CIK).