TULSA, OK--(Marketwire - October 26, 2010) -  AAON, INC. (NASDAQ: AAON), a leading manufacturer of heating and cooling products, announced that for the seventh year, it has been named one of "America's Best Small Companies" by Forbes magazine. AAON is ranked #77 in the November 8, 2010 issue.

Previous listings include:
58th on the Forbes 200 Best Small Companies in 2009
150th on the Forbes 200 Best Small Companies in 2008
133rd on the Forbes 200 Best Small Companies in 2007
128th on the Forbes 200 Best Small Companies in 2003
51st on the Forbes 200 Best Small Companies in 2002
36th on the Forbes 200 Best Small Companies in 2001

To qualify, companies must have been publicly traded for at least a year, have annual revenue between $5 million and $1 billion and a stock price no lower than $5 a share. The rankings are based on earnings growth, sales growth and return on equity in the past 12 months and over 5 years. Forbes also factored in the stock performance of each company compared with that of its peers. Shares of last year's top 200 small companies outpaced the Russell 2000 small-company index by an average of 3 percentage points.

Norm Asbjornson, President & CEO of AAON, said, "We are very honored to be recognized as one of 'America's Best 100 Small Companies.' This ranking reflects the hard work, dedication and commitment of every employee at AAON. Our primary focus at AAON has been, and will continue to be, on delivering consistent and profitable growth to our shareholders."

About AAON

AAON is engaged in the engineering, manufacturing, marketing and sale of air conditioning and heating equipment consisting of standard, semi-custom and custom rooftop units, chillers, packaged mechanical rooms, air handling units, make-up air units, heat recovery units, condensing units and coils. Since the founding of AAON in 1988, AAON has maintained a commitment to design, develop, manufacture and deliver heating and cooling products to perform beyond all expectations and demonstrate the value of AAON to our customers. For more information, please visit www.aaon.com.

Contact Information:

Jerry R. Levine
Phone: (914) 244-0292
Fax: (914) 244-0295
Email: jrladvisor@yahoo.com