BillionaireNet
Asbjornson
N
Rank #2933
USmanufacturingHVAC

Norman Asbjornson

Net Worth
$1B
% (24h)
Norman Asbjornson, a self-made billionaire, is a prominent figure in the HVAC industry. Born on December 10, 1935, Asbjornson's career began in sales and progressed to leadership roles. He founded AAON in 1988, leveraging his expertise to create a successful commercial HVAC manufacturing company. His net worth is estimated at $1.0 billion as of December 16, 2025. Throughout his career, he transitioned from CEO to Executive Chairman of AAON and retired in 2022, yet continues to serve on the board of directors. Asbjornson's wealth source is primarily his involvement in the HVAC industry, complemented by his strategic shareholdings in AAON.

The Full Dossier

Early Life

Norman Harold Asbjornson was born in Winifred, Montana, on December 10, 1935. He was the first son of Julian "Boots" Asbjornson and Dorothy "Eric" Asbjornson and the fourth generation of his family to live in Winifred. Growing up, he worked odd jobs to earn money and learned the value of money management at an early age.

Rise to Success

After graduating from Montana State College (now Montana State University) in 1960 with a degree in mechanical engineering, Asbjornson embarked on his career in the HVAC industry. He began as a salesman with American Standard. Over the next 12 years, he held six different jobs in five different cities, gaining valuable experience in the field. In 1972, he transitioned to Singer after American Standard sold its rooftop HVAC operation.

In 1988, Asbjornson founded AAON, a commercial HVAC company, after leading the buyout of John Zink's HVAC division. He served as CEO from its inception until 2020, when he became Executive Chairman.

Key Business Strategies

Asbjornson's vision for AAON was to create a company that designed and manufactured semi-custom HVAC equipment. The name AAON was chosen to ensure the company would be listed first in phone directories. AAON went public with Asbjornson as President and CEO. He focused on efficient manufacturing processes and building strong relationships within the industry. AAON has manufacturing facilities in multiple locations, including Tulsa, Oklahoma, and Longview, Texas. The company's success is reflected in its revenue of $1.2 billion in 2024.

Philanthropy

Asbjornson has a strong commitment to philanthropy, particularly supporting his alma mater, Montana State University (MSU). In 2014, he pledged $50 million to help fund a new College of Engineering at MSU, the largest private gift in Montana's history. He has also donated $10.4 million for the construction of the new Montana Heritage Center. Additionally, Asbjornson has contributed to local causes, including the Winifred Educational Fund and the Central Montana Medical Center.

Career Timeline

2022

Retired as Executive Chairman

Retired from the role of Executive Chairman of AAON, but remains on the board of directors.

2020

Transitioned to Executive Chairman

Transitioned from CEO to Executive Chairman of AAON.

2014

Pledged $50 million to MSU

Committed $50 million to fund a new College of Engineering at Montana State University.

2004

Awarded Honorary Doctorate

Received an honorary doctorate in engineering from Montana State University.

1988

Founded AAON

Founded AAON, a commercial HVAC company.

1960

Graduated from Montana State College

Earned a degree in mechanical engineering.

Philanthropic Impact

Education$50M

Montana State University College of Engineering

Donated $50 million for the construction of a new College of Engineering.

Culture$10.4M

Montana Heritage Center

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

Education$3M

Winifred Educational Fund

Provided funding for scholarships for Winifred High School graduates.

Healthcare$2M

Central Montana Medical Center Cancer Center

Provided funding for Central Montana Medical Center Cancer Center.

Wealth Trajectory