Framingham, Mass. — August 16, 2007 — Netezza Corporation (NYSE Arca: NZ), the global data warehouse appliance market leader, today announced that it will release financial results for its second fiscal quarter ended July 31, 2007 shortly after market close on Thursday, August 23, 2007. Netezza will host a conference call and webcast at 4:30 PM Eastern Time (1:30 PM Pacific Time) that day to discuss its second fiscal quarter results.

The conference call can be accessed by dialing +1-866-510-0710 for participants in the United States and by dialing +1-617-597-5378 for participants outside the United States. The passcode for the conference call is 97931534. 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 92918343.

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 Corporation
Netezza, the global data warehouse appliance market leader, enables enterprises to make all of their data actionable – quickly, simply and affordably. The Netezza Performance Server family of products delivers breakthrough performance, unmatched ease of deployment and operation, and innovative flexibility and scalability at a fraction of the cost of traditional data warehouse solutions. By architecturally integrating database, server and storage within a single appliance, the NPS system delivers 10 to 100 times the performance at half the cost of existing systems. 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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