AAON vs SF Comparison

AAON Inc is a manufacturer of air-conditioning and heating equipment. The products include rooftop units, chillers, packaged outdoor mechanical rooms, air-handling units, makeup air units, energy-recovery units, condensing units, geothermal heat pumps, and self-contained units and coils. The company operates through three segments: AAON Oklahoma, AAON Coil Products, and BASX. It generates the majority of its revenue from the AAON Oklahoma segment which derives maximum revenue, engineers, manufactures, and sells, semi-custom, and custom HVAC systems, designs and manufactures control solutions, and sells retail parts to customers through retail part stores and online.

Stifel Financial is a diversified financial-services provider that generates revenue from wealth management, investment banking, and lending. The firm was founded in 1890 as a St. Louis-based full-service brokerage but has been transformed under CEO Ronald Kruszewski through a slew of acquisitions into a globally competitive wealth manager, investment bank, and retail and institutional brokerage. The firm generated $5.5 billion in revenue in 2025, with roughly two-thirds derived from wealth management and one-third derived from trading and investment banking.