
With a market cap of $49.5 billion, Comfort Systems USA, Inc. (FIX) provides mechanical and electrical installation, maintenance, and repair services across the United States. It operates through Mechanical and Electrical segments, offering solutions such as HVAC, plumbing, electrical systems, and fire protection for commercial, industrial, and institutional clients.
Companies valued at $10 billion or more are generally considered "large-cap" stocks, and Comfort Systems fits this criterion perfectly. The company also specializes in the design, engineering, and integration of building systems, along with ongoing monitoring and support for both new and existing facilities.