Double-Take® Software Ranked in the Deloitte Technology Fast 500

Company Recognized as One of the Fastest Growing Companies in North America

Southborough, Mass. - January 22, 2007 - Double-Take® Software (NASDAQ: DBTK) today announced it has been ranked as one of the top 500 fastest growing companies on the prestigious Deloitte Technology Fast 500, a ranking of the 500 fastest growing technology, media, telecommunications and life sciences companies in North America. Rankings are based on percentage of fiscal year revenue growth over five years, from 2002-2006. Double-Take Software grew 325 percent during this period.

"It is an honor to now be included on the Fast 500 list in addition to the New England Fast 50," said Dean Goodermote, chief executive officer, Double-Take Software. "Our growth and success over the past five years is a reflection of the outstanding employees and customers we have at Double-Take Software."

In addition to ranking on the Deloitte Technology Fast 500, Double-Take Software was included in the New England Technology Fast 50, which is a ranking of the 50 fastest growing technology firms in New England.

"Deloitte's Technology Fast 500 recognizes technology companies who have achieved extraordinary growth in North America's most innovative and competitive sectors," said Phil Asmundson, vice chairman, U.S. Technology, Media and Telecommunications, Deloitte & Touche USA LLP. "We congratulate Double-Take Software on this significant accomplishment."

The North American Technology Fast 500, founded in 1995, is a program of Deloitte's Technology, Media & Telecommunications (TMT) Group. The list is compiled from Deloitte's 16 regional North American Fast 50 programs, nominations submitted directly to the Fast 500, and public company database research. Companies are selected based on percentage revenue growth from 2002 to 2006.

Entrants must own proprietary intellectual property or proprietary technology that contributes to a significant portion of the company's operating revenues or devote a significant proportion of revenues to research and development of technology. Using other companies' technology or intellectual property in a unique way does not qualify.

Base-year operating revenues must be at least $50,000 USD or $75,000 CD, and current-year operating revenues must be at least $5 million USD or CD. Companies must be in business a minimum of five years, and they must be headquartered within North America. Winners, selected from nominations and extensive research, are announced each fall. For more information on Deloitte's Technology Fast 500 or Technology Fast 50 programs, visit www.fast500.com.

About Double-Take® Software
Headquartered in Southborough, Massachusetts, Double-Take® Software (Nasdaq: DBTK) is a leading provider of affordable software for recoverability, including continuous data replication, application availability and system state protection. Double-Take Software products and services enable customers to protect and recover business-critical data and applications such as Microsoft Exchange, SQL, and SharePoint in both physical and virtual environments. With its unparalleled partner programs, technical support, and professional services, Double-Take Software is the solution of choice for more than ten thousand customers worldwide, from SMEs to the Fortune 500. Information about Double-Take Software's products and services can be found at www.doubletake.com.

This release includes forward-looking statements intended to qualify for the safe harbor from liability established by the Private Securities Litigation Reform Act of 1995. These forward-looking statements generally can be identified by phrases that say Double-Take or its management "believes," "expects," "anticipates," "foresees," "forecasts," "estimates" or other words or phrases of similar import. Similarly, statements in this release that describe the Company's business strategy, outlook, objectives, plans, intentions or goals also are forward-looking statements. All forward-looking statements are inherently speculative, and are subject to risks and uncertainties that could cause actual results to differ materially from those anticipated in forward-looking statements. These risks and uncertainties include those set forth from time to time in our filings with the Securities and Exchange Commission. We are under no obligation, and do not undertake any duty, to update these forward looking statements statements at any time.

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About Deloitte
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Deloitte & Touche USA LLP is the US member firm of Deloitte Touche Tohmatsu. In the US, services are provided by the subsidiaries of Deloitte & Touche USA LLP (Deloitte & Touche LLP, Deloitte Consulting LLP, Deloitte Financial Advisory Services LLP, Deloitte Tax LLP and their subsidiaries), and not by Deloitte & Touche USA LLP.