Key Points
Comfort Systems USA (NYSE: FIX) has experienced a significant increase in its stock price, rising over 77% in 2023 and more than 374% year-over-year. The company specializes in mechanical and electrical services, including HVAC, plumbing, and fire protection.
As of early 2026, Comfort Systems reported a record backlog of $11.94 billion, more than double compared to the end of 2024. Approximately 45% of its total revenue is now generated from data center projects, driven by rising demand from major tech companies like Amazon, Alphabet, and Microsoft for advanced cooling and electrical systems. In 2025, the company achieved a revenue of $9.1 billion, marking a 29.5% increase, with earnings per share (EPS) of $28.88, up 97.8%.
With a debt of $145.2 million against $981.9 million in cash and an annual debt-to-equity ratio of 0.197, Comfort Systems maintains financial flexibility to leverage growth opportunities amid increasing demand in data center infrastructure.









