Framingham, Mass. — November 21, 2007 — Netezza Corporation (NYSE Arca: NZ), the global leader in analytic appliances, today announced that it will release financial results for its third fiscal quarter ended October 31, 2007 before market opens on Wednesday, November 28, 2007. Netezza will host a conference call and webcast at 8:30AM Eastern Time (5:30 AM Pacific Time) that day to discuss its third fiscal quarter results.

The conference call can be accessed by dialing +1 800 561-2731 for participants in the United States and by dialing +1 617 614-3528 for participants outside the United States. The passcode for the conference call is 68188954. A telephonic replay of the conference call will also be available two hours after the call and will run for two weeks. The replay can be accessed by dialing +1 888 286-8010 for participants in the United States and by dialing +1 617 801-6888 for participants outside the United States. The passcode for the replay is 49374446.

The webcast will be accessible from the "Investor Relations" section of Netezza's website (http://www.netezza.com). The webcast will be archived on Netezza’s website for a period of one year.

About Netezza
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® (NPS®) family of streaming analytic™ appliances brings appliance simplicity to a broad range of complex data warehouse and analytic challenges. 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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