AAON

AAON, Inc. manufactures heating, ventilation, and air conditioning equipment for commercial and industrial indoor environments. AAON is headquartered in Tulsa, Oklahoma and has manufacturing facilities in Longview, TX, Parkville, MO, and Redmond, OR. AAON employs approximately 4,000 people across four US-based locations and has annual sales in excess of $880 million.

History
AAON was founded in 1988 when Norman H. Asbjornson set out to create a commercial HVAC company that designed and manufactured semi-custom equipment that would excel in performance relative to the market. Asbjornson purchased the heating and air-conditioning division of John Zink and created a new company called AAON. The name ensured the company would be listed first in the phone directories.

In 1991, AAON acquired Coils Plus in Longview, TX, initially only committed to manufacturing HVAC coils. In 2000, AAON began to manufacture equipment in Longview and in 2019, broke ground on a facility expansion as part of a $28-million-dollar investment in the plant. Further expansion in Longview commenced in 2019 with the completion of a 220,000-square foot building, an additional $40 million investment. In 2023, a second $40 million expansion was approved by the Longview Economic Development Corp. and scheduled to be completed in 2024.

In 2018, AAON acquired Missouri-based WattMaster Controls (WCI) and entered a lease of the facility that was previously occupied by WCI. The WattMaster acquisition allowed AAON to begin producing their own proprietary controls systems.

In 2021, AAON acquired Oregon-based BASX Solutions (BASX). BASX designs and manufactures premium, highly customized commercial HVAC equipment for data centers, clean rooms, and other niche applications.