From Open Energy Information

AAON is a company located in Tulsa, OK. AAON (NASDAQ: AAON) designs, manufactures and sells semi-custom heating, ventilation and air conditioning equipment (HVAC) for commercial and residential use. AAON is a world leader in creating comfortable and healthy indoor environments, efficiently, through the manufacture of premium HVAC equipment[3]


<references> [3]

  1.  "AAON"
  2.  "NREL Partnership Info"
  3. 3.0 3.1  "AAON Website: About"