Energy-efficient HVAC companies make heating, ventilation and air conditioning systems designed to deliver the same comfort or cooling with less energy. Buyers include facility managers, building owners and data center operators. Vendors are listed A–Z with no scores or rankings; see our methodology for how vendors are included.
Ranked by verified data once available. Until then companies are shown A–Z. Paid placements are labeled Sponsored and never change the order.
Typical features include high-efficiency compressors and fans, variable-speed drives, heat pumps, heat recovery and smart controls that match output to demand.
Ratings such as SEER, EER and COP compare cooling or heating output with energy input. Higher values mean more efficient equipment.
Compare efficiency ratings for your climate and load, controls and integration options, refrigerant type, and local installation and service support.
