Zenoss Marks One Year Anniversary on SourceForge.Net

ANNAPOLIS, MD (February 2007) – Zenoss Inc., a leading provider of open source network and systems management software, today announced one-year anniversary of its open source project on SourceForge.net. The Zenoss project was launched under the GNU Public License in February 2006 with the mission of simplifying IT management with an integrated, enterprise-ready, open source IT monitoring solution.

Over the past year, Zenoss has achieved a top 20 ranking among the over 140,000 projects hosted on the open source development portal, SourceForge.net. Zenoss Core is also ranked number one among 1600+ network monitoring projects.

“Looking back over the last year I’m extremely pleased by what we have accomplished. The growth and support of our community has been a major factor in our success. I look forward to the next year and amazing things we will accomplish together,” said Zenoss Core Project Lead, Erik Dahl.

The Zenoss Project has achieved the following milestones since its release on SourceForge.net one year ago:

• Over 130,000 downloads
• Over 3000 active community members
• 8 major releases of Zenoss Core
• Zenoss was a founding member of the Open Management Consortium – http://www.open-management.com.

Zenoss Core is licensed under the GNU Public License and is available for download from http://www.zenoss.com/download. Zenoss, Inc., the sponsor of the Zenoss open source project, provides commercial support and value-added services for Zenoss Core.

About Zenoss, Inc.

Zenoss inc. is the developer of the Zenoss Core commercial open source IT monitoring software platform. Zenoss Core allows IT professionals to manage the status and health of their entire infrastructures through a single web-based console. Zenoss Core has been downloaded by thousands of IT professionals in a broad range of industries worldwide. The privately held company is headquartered in Annapolis, MD and has received investment from Boulder Ventures and Intersouth Partners. For more information, please visit www.zenoss.com.