NetWorth
LeaderPortfolio
Asbjornson
N
Rank #2593
UNITED STATES•Manufacturing•HVAC

Norman Asbjornson

Net Worth
$1.509B
-6.58% (24h)
Norman Asbjornson, a self-made billionaire, is the founder of AAON, a leading HVAC (Heating, Ventilation, and Air Conditioning) manufacturer. Born in Winifred, Montana, on December 10, 1935, Asbjornson's career in the HVAC industry began after graduating from Montana State University with a degree in mechanical engineering. He founded AAON in 1988, serving as CEO until 2020 and then as Executive Chairman until his retirement in 2022. Asbjornson's net worth of $1.3 billion reflects his success in the HVAC sector and his long-standing contributions to the industry. His dedication has earned him a spot among the world's wealthiest individuals and highlights his significant achievements in business.

How to read Norman Asbjornson's profile

Public net-worth figures are estimates. They combine observable inputs—typically listed equity, disclosed transactions, and market prices—with editorial judgment where filings are incomplete (for example, private holdings, debt, or cross-holdings). For Norman Asbjornson, we anchor the narrative to HVAC and HVAC, then update the headline number as markets move. The chart on this page is meant to show trajectory, not a certified balance sheet.

When you see $1.509B alongside global rank #2593, interpret it as our best synthesis of widely cited ownership and price signals—not a claim about cash on hand. Estimates can diverge from other publishers because of different treatment of options, trusts, charitable vehicles, or illiquid assets. We document the general approach in methodology and welcome corrections via corrections.

Country (UNITED STATES) and career milestones on this page are curated for reader context; they should be verified against primary sources when used for research. Editorial metadata for this profile is refreshed on a rolling basis, with deeper audits at least annually (last noted cycle: 2026).

Looking for depth? When available, the dossier and timeline sections below add long-form context beyond the headline number—prioritize those modules when evaluating claims about strategy, controversies, or philanthropic commitments.

The Full Dossier

Early Life

Norman Harold Asbjornson was born in Winifred, Montana, on December 10, 1935. Growing up during the Great Depression, Asbjornson learned the value of hard work and perseverance from a young age. At the age of 10, he started his entrepreneurial journey by hauling water for chickens in exchange for a Model T. He graduated high school in 1953.

Rise to Success

After graduating from Montana State University in 1960 with a degree in mechanical engineering, Asbjornson began his career in the HVAC industry. He started as a salesman with American Standard. Over the next 12 years, he held six different jobs in five different cities, honing his management and sales skills. In 1988, after 28 years in the industry, Asbjornson founded AAON (a play on the fact that it would be listed first in the phone book). He led a management takeover of John Zink's HVAC division and took the company public in 1991. Under his leadership, AAON secured significant contracts with major retailers like Walmart, contributing to the company's growth and success. Asbjornson served as CEO until 2020, transitioning to Executive Chairman and retiring in 2022 but still remains on the board of directors.

Key Business Strategies

AAON's success can be attributed to several key strategies. The company focused on designing and manufacturing semi-custom equipment, which allowed them to cater to the specific needs of large clients. AAON was willing to retool its production line to make customized units for big customers, giving them a competitive edge. The company diversified its business by winning contracts with schools and other institutions. Furthermore, AAON's focus on high-efficiency HVAC systems tailored for sectors like education and healthcare has contributed to its innovation leadership.

Philanthropy

Asbjornson is known for his generous philanthropic contributions, particularly in Montana. In 2014, he pledged $50 million to Montana State University for its College of Engineering, the largest private gift in the state's history. He has also donated $10.4 million for the construction of the Montana Heritage Center. Additional funds were established for the Winifred Educational Fund for scholarships and the Central Montana Medical Center (CMMC) Cancer Center. His contributions support educational opportunities and historical preservation, leaving a lasting legacy in the state of Montana.

Career Timeline

2022

Retired from Executive Chairman

Retired from Executive Chairman role but remained on the Board of Directors.

2020

Executive Chairman of AAON

Transitioned from CEO to Executive Chairman.

1991

AAON Goes Public

Took AAON public.

1988

Founder of AAON

Founded AAON, a commercial HVAC company.

1972

Head of National and International Sales

Promoted to head of national and international sales for Singer in Carteret, New Jersey.

1965

Office Manager

Promoted to Office Manager at American Standard, relocated to Detroit.

1960

Sales Engineer

Began his career in the HVAC industry at American Standard in Omaha, Nebraska.

Philanthropic Impact

Education$50M

Montana State University College of Engineering

Pledged $50 million to Montana State University's College of Engineering in 2014.

Historical Preservation$10.4M

Montana Heritage Center

Donated $10.4 million for the construction of the Montana Heritage Center.

Education$3M

Winifred Educational Fund

Provided funding for scholarships in Winifred, Montana.

Healthcare$2M

Central Montana Medical Center Cancer Center

Donated to the CMMC Cancer Center.

Key Business Ventures & Holdings

CompanyStakeValue
AAON Inc16.02%$1M

Net Worth History

In-Depth Analysis

Early Life

Norman Harold Asbjornson was born in Winifred, Montana, on December 10, 1935. Growing up during the Great Depression, Asbjornson learned the value of hard work and perseverance from a young age. At the age of 10, he started his entrepreneurial journey by hauling water for chickens in exchange for a Model T. He graduated high school in 1953.

Rise to Success

After graduating from Montana State University in 1960 with a degree in mechanical engineering, Asbjornson began his career in the HVAC industry. He started as a salesman with American Standard. Over the next 12 years, he held six different jobs in five different cities, honing his management and sales skills. In 1988, after 28 years in the industry, Asbjornson founded AAON (a play on the fact that it would be listed first in the phone book). He led a management takeover of John Zink's HVAC division and took the company public in 1991. Under his leadership, AAON secured significant contracts with major retailers like Walmart, contributing to the company's growth and success. Asbjornson served as CEO until 2020, transitioning to Executive Chairman and retiring in 2022 but still remains on the board of directors.

Key Business Strategies

AAON's success can be attributed to several key strategies. The company focused on designing and manufacturing semi-custom equipment, which allowed them to cater to the specific needs of large clients. AAON was willing to retool its production line to make customized units for big customers, giving them a competitive edge. The company diversified its business by winning contracts with schools and other institutions. Furthermore, AAON's focus on high-efficiency HVAC systems tailored for sectors like education and healthcare has contributed to its innovation leadership.

Philanthropy

Asbjornson is known for his generous philanthropic contributions, particularly in Montana. In 2014, he pledged $50 million to Montana State University for its College of Engineering, the largest private gift in the state's history. He has also donated $10.4 million for the construction of the Montana Heritage Center. Additional funds were established for the Winifred Educational Fund for scholarships and the Central Montana Medical Center (CMMC) Cancer Center. His contributions support educational opportunities and historical preservation, leaving a lasting legacy in the state of Montana.

Data Sources & Methodology

Figures for Norman Asbjornson are synthesized from the sources below and cross-checked against our net worth methodology. Estimates may lag market moves; see corrections to report discrepancies.

You may also like

HubAll BillionairesHubGlobal RankingsHubNewsroom