About AAON

AAON (NASDAQ:AAON) is engaged in the engineering, manufacturing, marketing and sale of semi-custom heating, ventilation and air conditioning equipment (HVAC) for commercial use. AAON is a world leader in creating comfortable and healthy indoor environments, efficiently, through the manufacture of premium HVAC equipment.


AAON, Inc was founded in 1988 with the acquisition of the heating and air conditioning division of the John Zink Company. AAON Coil Products, Inc. was founded in 1991 with the acquisition of Coils Plus, Inc. of Longview, Texas. AAON further expanded operations with the acquisition of WattMaster Controls, Inc. in Parkville, Missouri, expanding AAON Controls knowledge and development.

Expansion and growth continue today with the addition of new production lines and new machinery. The Tulsa offices and manufacturing facilities are over 1.51 million sq. ft.; the Longview offices and manufacturing facilities are over 263,000 sq. ft.; the Parkville facility is 48,500 sq. ft. In the three plants combined, AAON employs over 2,000 individuals.

Our knowledgeable independent manufacturers’ representatives can help you select the right equipment to meet your needs whether they are heating, cooling, dehumidification, air movement, energy recovery or a number of other HVAC needs. You can easily find an AAON sales representative near you with our AAON Representative Locator.