AAON, Inc. (NASDAQ: AAON) is a U.S.-based designer and manufacturer of heating, ventilation and air conditioning (HVAC) equipment for commercial and industrial applications. The company’s product portfolio focuses on rooftop packaged units, water-source heat pumps, chillers and custom-engineered solutions that cater to a wide array of building types, from office complexes and schools to data centers and healthcare facilities.
AAON’s core offerings include rooftop units available in gas, electric and dual-fuel configurations, precision air-conditioning systems for temperature- and humidity-sensitive environments, and modular chillers suited for both indoor and outdoor installations. The company also produces air handlers, heat recovery units and building automation controls designed to optimize energy efficiency and indoor air quality.
Founded in 1987 by Dr. Norman H. Asbjornson, AAON is headquartered in Tulsa, Oklahoma, and operates manufacturing facilities in Oklahoma and Texas. The company’s vertically integrated production model encompasses sheet metal fabrication, coil manufacturing and final assembly, enabling tight control over quality and lead times. Sales are conducted through a network of independent representatives and direct channels throughout North America, with select international exports.
AAON places a strong emphasis on research and development to meet evolving environmental regulations and customer-specific requirements. By combining standardized platforms with customizable options, the company seeks to deliver reliable, energy-efficient HVAC solutions while maintaining flexibility for unique projects and emerging market trends.
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