CommVault Named to Software Magazine's 25th Annual Software 500

October 29, 2007

Software Magazine Ranks CommVault as One of the World's Largest Software Companies

OCEANPORT, N.J.--(BUSINESS WIRE)--Oct. 29, 2007--CommVault(R) (NASDAQ:CVLT) today announced its inclusion in Software Magazine's Software 500 ranking of the world's largest software and service providers, now in its 25th year. According to the survey, CommVault placed 182 in the independent rankings with software revenue of $109.5 million based on revenue in fiscal year 2006.

"We are honored to be included in the prestigious list with the world's most successful software companies," said Bob Hammer, CommVault president and CEO. "CommVault continues to demonstrate vigorous growth in its core business as organizations of all sizes look to CommVault to help reduce data center complexity. By meeting customers' needs through superior execution and a unique single platform approach, we continue to outperform other companies in our sector and believe we have been highly successful in redefining the data management market."

The Software 500 is a revenue-based ranking of the world's largest software and services suppliers targeting medium to large enterprises, their IT professionals, software developers and business managers involved in software and services purchasing. The ranking is based on total worldwide software and services revenue for 2006. This includes revenues from software licenses, maintenance and support, training and software-related services and consulting. About 73 percent of the Software 500 companies saw revenue growth in 2006.

"The 2007 Software 500 results show that growth in the software and services industry was healthy from 2006 to 2007. The industry continues to be dynamic with more than 98 new companies on the list this year for the first time," said John P. Desmond, editor of Software Magazine and Softwaremag.com. "The Software 500 helps CIOs, senior IT managers and IT staff research and create a short list of business partners (and) is a quick reference of vendor viability. That is a valuable service."

The Software 500 is available at http://www.softwaremag.com.

About Software Magazine, the Software Decision Journal, and Softwaremag.com

Digital Software Magazine, the Software Decision Journal, has been a brand name in the high-tech industry for nearly 30 years. Softwaremag.com, its Web counterpart, is the online catalog to enterprise software and the home of the Software 500 ranking of the world's largest software and services companies, now in its 25th year. Software Magazine and Softwaremag.com are owned and operated by King Content Co.

About CommVault(R)

A singular vision - a belief in a better way to address current and future data management needs - guides CommVault in the development of Singular Information Management(TM) solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unprecedented control over data growth, costs and risk. CommVault's Simpana(TM) software suite of products was designed to work together seamlessly from the ground up, sharing a single code and common function set, to deliver superlative Data Protection, Archive, Replication, Search and Resource Management capabilities. More companies every day join those who have discovered the unparalleled efficiency, performance, reliability, and control only CommVault can offer. Information about CommVault is available at www.commvault.com. CommVault's corporate headquarters is located in Oceanport, New Jersey in the United States. (cvlt-co)

(C)1999-2007 CommVault Systems, Inc. All rights reserved. CommVault, CommVault and logo, the "CV" logo, CommVault Systems, Solving Forward, SIM, Singular Information Management, Simpana, CommVault Galaxy, Unified Data Management, QiNetix, Quick Recovery, QR, GridStor, Vault Tracker, QuickSnap, QSnap, Recovery Director, CommServe, CommCell, and InnerVault are trademarks or registered trademarks of CommVault Systems, Inc. All other third party brands, products, service names, trademarks, or registered service marks are the property of and used to identify the products or services of their respective owners. All specifications are subject to change without notice.

CONTACT: CommVault Media Contact: Dani Kenison, 732-728-5370 pr@commvault.com or Investor Relations Contact: Michael Picariello, 732-728-5380 ir@commvault.com or Software 500 Contact: Software Magazine Tracy Kunichika, 508-668-9928 Tracyk@softwaremag.com SOURCE: CommVault