AAON, Inc. provides HVAC solutions for commercial and industrial indoor environments. Its segments include AAON Oklahoma, AAON Coil Products, and BASX. The AAON Oklahoma segment engineers, manufactures, and sells configurable HVAC systems, designs and manufactures controls solutions, and sells aftermarket parts to customers through retail part stores and online. The AAON Coil Products segment engineers and manufactures and sells semi-custom and custom HVAC systems and heating and cooling coils for use in HVAC systems, primarily for AAON Oklahoma, AAON Coil Products, and BASX. BASX segment engineers, manufactures, and sells a range of custom, high-performance cooling solutions for the hyperscale data center market; ventilation solutions for cleanroom environments in the biopharmaceutical, semiconductor, medical, and agricultural sectors; and highly customized air handlers and modular solutions for a variety of markets. BASX operates from its manufacturing facilities in Redmond, Oregon.