AAON

AAON manufactures premium heating, ventilation, and air conditioning equipment for commercial and industrial applications across North America. Founded in 1988 by Norman H. Asbjornson, who purchased John Zink's HVAC division to create a company focused on semi-custom commercial climate control solutions, AAON has grown into a leading HVAC manufacturer with over 4,000 employees and annual sales exceeding $880 million. The company operates manufacturing facilities in Tulsa, Oklahoma (headquarters), Longview, Texas, Parkville, Missouri, and Redmond, Oregon, producing air handlers, condensers, rooftop units, and water-source heat pumps tailored to specific customer requirements. AAON's strategic acquisitions enhanced its market position: the 2018 purchase of WattMaster Controls added building automation capabilities, while the 2021 acquisition of BASX Solutions brought expertise in highly customized equipment for data centers, cleanrooms, and specialized industrial environments. The company's engineering-driven approach emphasizes energy efficiency, reliability, and customization, serving educational institutions, healthcare facilities, manufacturing plants, and technology infrastructure with HVAC systems designed for demanding commercial environments requiring precise environmental control.