NETEZZA TO PRESENT AT BAIRD'S 2008 GROWTH STOCK CONFERENCE

Presentation to be Webcast Live on May 15

Framingham, Mass. — May 9, 2008 — Netezza Corporation (NYSE Arca: NZ), the global leader in analytic appliances, today announced that Patrick J. Scannell, Jr., senior vice president and chief financial officer, will be presenting at Baird's 2008 Growth Stock Conference. The conference will be hosted by the Four Seasons Hotel Chicago in Chicago, IL from May 13th-15th, 2008. Mr. Scannell will be presenting on Thursday, May 15 at 1:15 p.m. (CT) and will discuss the Company's business strategy and recent financial results.

An audio webcast of the presentation will be available live at the "Investor Relations" section of Netezza's website at www.netezza.com. For those unable to listen to the live webcast, an archive of the presentation will be available on the Company's website.

About Netezza Corporation
Netezza is the global leader in 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(R) (NPS(R)) family of streaming analytic(TM) 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, Neiman Marcus, Orange UK, Premier, Inc., Ross Stores, Ryder System, Inc., The Carphone Warehouse and Virgin Media. Based in Framingham, Mass., Netezza has offices in Washington, DC, the United Kingdom and Asia Pacific. For more information about Netezza, please visit www.netezza.com.

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

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