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AAON
AAON was founded in 1988 and is led today by CEO Gary D. Fields and founder Norman Asbjornson as Executive Chairman.
AAON
AAON was founded in 1988 and is led today by CEO Gary D. Fields and founder Norman Asbjornson as Executive Chairman. Headquartered in Tulsa, Oklahoma, the company manufacturers commercial and industrial rooftop air conditioning and heating units, air handlers, and coils. It competes with larger HVAC conglomerates by focusing on highly configurable, energy-efficient equipment sold through a network of independent sales representatives rather than a direct sales force. The company deploys capital primarily into expanding its own manufacturing capacity — adding a new 787,000-square-foot plant in Longview, Texas (per the firm, 2024) and expanding its Parkville, Missouri, and Redmond, Oregon, facilities. These capital expenditures replace a traditional investment portfolio, as AAON has historically carried no long-term debt (per AAON 10-K, 2023). Its end-market exposure spans institutional building upgrades, industrial cooling for data centers, and warehouse retrofits — a mix that ties its revenue directly to domestic construction cycles. Major institutional shareholders include BlackRock and The Vanguard Group (per SEC 13F filings, 2024). In May 2024, AAON completed the opening of its Longview, Texas, manufacturing facility, a multi-year project designed to alleviate production bottlenecks and support sustained 20-30% annual revenue growth (per the firm, May 2024). The workforce totals roughly 4,000 professionals across four US locations. The company operates no adjacent investment vehicles, philanthropic foundations, or co-investor clubs, instead retaining nearly all earnings for physical reinvestment — a posture that kept its balance sheet debt-free until a modest draw in 2024 to finance the Texas expansion. What separates AAON from most publicly traded industrial firms is its capital structure — the absence of long-term debt for the bulk of its history allowed it to self-fund factory expansions during tightening cycles. This makes it a direct, highly concentrated play on HVAC demand growth in the US, with no meaningful exposure to broader financial markets or credit risk.
General information
Firm type
Asset Manager
Year founded
1988
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Tulsa
Corporate office
Tulsa, OK, United States
Additional offices
Longview, TX · Parkville, MO · Redmond, OR
Principals
Gary D. Fields
Chief Executive Officer
Norman H. Asbjornson
Executive Chairman
Rebecca A. Thompson
Chief Financial Officer
Sector focus
Frequently asked questions
Is AAON a family office or an operating company?
AAON is a publicly traded industrial manufacturer, not a family office. It designs and builds commercial HVAC equipment from four US plants. It accepts outside capital through NASDAQ-listed common stock (ticker: AAON) and institutional shareholders including BlackRock and Vanguard.
Where does AAON deploy its excess capital?
AAON reinvests free cash flow into physical plant expansion — new factories, production lines, and automation. It has historically carried zero long-term debt, funding the 2024 Longview, Texas, plant primarily from retained earnings, with a modest credit draw to complete construction (per AAON 10-K, 2023).
What end markets does AAON's equipment serve?
AAON concentrates on US commercial and industrial buildings: K-12 schools, university campuses, data centers, warehouses, and retail chains. Rising heat loads from denser server racks and aging public school stock are primary demand drivers (per industry data, 2024).
Who makes investment decisions at AAON?
Capital allocation decisions sit with CEO Gary D. Fields, CFO Rebecca A. Thompson, and the Board, chaired by founder Norman Asbjornson. Their investing framework is industrial rather than financial — evaluating factory ROI, not fund commitments or third-party manager selection.
Does AAON participate in private equity or venture capital?
No. AAON has never disclosed a venture, PE, or fund-of-funds program. Its SEC filings confirm it operates a single segment — manufacturing HVAC equipment — with short-term excess cash held in money-market instruments (per AAON 10-K, 2023).
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