Marlborough, Mass. — March 19, 2009 — Netezza Corporation (NYSE Arca: NZ), announced today that it has filed an application to list its common stock on the New York Stock Exchange (NYSE). Upon approval of its application, Netezza expects that its shares of common stock will begin trading on the NYSE on April 9, 2009 under the symbol “NZ.” Until that time, Netezza will continue to trade on the NYSE Arca under the symbol “NZ.”

“We believe that listing on the NYSE will increase Netezza's visibility in the investment community and is ultimately in the best interests of Netezza and our stockholders,” said Jim Baum, president and CEO of Netezza.

About Netezza Corporation (NYSE Arca: NZ)

Netezza (NYSE Arca: NZ) is the global leader in data warehouse and analytic appliances that dramatically simplify high-performance analytics for business users across the extended enterprise, delivering significant competitive and operational advantage in today’s information-intensive marketplaces. The Netezza Performance Server® (NPS®) family of appliances brings appliance simplicity to a broad range of complex data warehouse and analytic challenges. Customers who have realized the benefits of Netezza appliances include Ahold, Amazon.com, CNET Networks, Debenhams, Department of Veterans Affairs, Epsilon, iBasis, Nationwide, Neiman Marcus, Orange UK, Premier, Inc., Ross Stores, Ryder System, Inc., The Carphone Warehouse and Virgin Media. Based in Marlborough, Mass., Netezza has offices in Washington, DC, the United Kingdom and the Asia Pacific region. For more information about Netezza, please visit www.netezza.com.

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Netezza, Netezza Performance Server and NPS are trademarks of Netezza Corporation. Other names may be trademarks of their respective owners.