FIX vs ACM Comparison

Comfort Systems USA Inc provides comprehensive mechanical contracting services, including heating, ventilation, & air conditioning, or HVAC; plumbing; piping & controls; construction; and other electrical components. Projects are mainly for commercial, industrial, & institutional buildings, & tend to be geared toward HVAC. Revenue is roughly split between installation services for newly constructed facilities & maintenance services for existing buildings. The company installs & repairs products and systems throughout the United States. It operates in two segments, Mechanical services & Electrical services, the majority is from the Mechanical services segment.

Aecom is one of the largest global providers of design, engineering, construction, and management services. It serves a broad spectrum of end markets including infrastructure, water, transportation, and energy. Based in Los Angeles, Aecom has a presence in over 150 countries and employs 51,000. The company generated $14.4 billion in sales and $847 million in adjusted operating income in fiscal 2023.