COMFORT SYSTEMS USA INC

Comfort Systems USA, Inc. provides mechanical and electrical contracting services across the United States. Its operations are divided into mechanical and electrical segments, offering the design, engineering, installation, maintenance, repair, and replacement of mechanical, electrical, and plumbing systems. Mechanical services encompass heating, ventilation, and air conditioning, controls, plumbing, piping, off-site construction, monitoring, and fire protection. The electrical segment covers system installation and servicing. The company serves commercial, industrial, and institutional sectors, including clients in technology, manufacturing, healthcare, education, office, retail, and government facilities, as well as multi-family residential projects.

The business operates nationwide through 50 operating units encompassing 190 locations across 142 cities throughout the United States. Its corporate headquarters is located in the United States, with executive oversight coordinating local operations across its regional network. Field operations are supported by a dedicated service fleet of owned and leased vans, trucks, and specialized support vehicles across all active domestic markets.

Summary of the business section of Comfort Systems Usa's latest annual report, written by StockData.

“Actually paid” adjusts reported pay for changes in the value of equity awards. Shareholder return assumes $100 invested at the start of the measurement period, as disclosed by the company.

“Employees —As of December 31, 2025, we had approximately 22,700 employees as compared to approximately 18,300 employees as of December 31, 2024.”