March 20, 2003 U.S. Bancorp Piper Jaffray Represents Prometheus Partners’ Portfolio Company, AIR-serv Holding, LLC, in Sale to Wind Point Partners, PRNewswire-FirstCall MINNEAPOLIS, March 20 /PRNewswire-FirstCall/ -- U.S. Bancorp Piper Jaffray, a leading growth company investment bank and merger and acquisition (M&A) advisory firm, served as exclusive financial advisor to AIR-serv Holding, LLC (AIR-serv), a portfolio company of Prometheus Partners' Fund, in its sale to Wind Point Partners, a private equity investment firm. The transaction closed on March 19, 2003. Founded in 1981 and headquartered in Mendota Heights, Minn., AIR-serv is the leading manufacturer and route operator of coin-operated tire inflation and vehicle vacuum machines at convenience and retail gasoline store locations throughout the United States (U.S.) and the United Kingdom (UK). " AIR-serv pioneered the air-vending market and now it owns and operates the largest air-vending route operations business in the world," said Robert D. Frost, vice president in U.S. Bancorp Piper Jaffray's Middle Market M&A Group. "The transaction will allow AIR-serv to continue to expand its air vending operations throughout the U.S. and UK." "Over the past five years, AIR-serv''s management team has successfully transformed AIR-serv from a manufacturing company to a route operations company with a large and stable recurring revenue stream," said Nicholas Peters, president and chief executive officer (CEO) of Prometheus Partners. "We are extremely proud to have helped the management team build this company." About Prometheus Partners: Prometheus Partners is an Atlanta-based partnership established to manage investments made by its fund Windward IV, L.P. in smaller middle market companies. The firm focuses on management buyouts of recurring revenue service and distribution companies with valuations between $10 million and $50 million. About Wind Point Partners: Wind Point Partners, with offices in Chicago and Southfield, Mich., is a private equity firm that acquires middle market companies with revenues between $50 and $250 million and growth potential. Wind Point Partners manages over $1 billion in commitments and has invested in over 75 companies since its inception in 1983.

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