NxStage(R) Ranked 14th Fastest Growing Company in North America on Deloitte's 2008 Technolog...( LAWRENCE Mass. Nov. 21 /- NxStage Med...),Health

LAWRENCE, Mass., Nov. 21 /PRNewswire-FirstCall/ -- NxStage Medical, Inc. (Nasdaq: NXTM), a leading manufacturer of innovative dialysis products, today announced that it ranked 14th on Deloitte's 2008 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 2003-2007. NxStage Medical, Inc. grew more than 20,000 percent during this period.

NxStage Medical's CEO, Jeffrey H. Burbank, credits the significant health and quality of life benefits experienced by patients using NxStage's innovative System One for home hemodialysis therapy, the cost and operational advantages of the System One within the critical care market, as well as the strength of the Company's value-added in-center offerings for its significant revenue growth over the past five years.

"Each company on Deloitte's Technology Fast 500 is an innovator with an exceptional five-year track record of growth," said Phil Asmundson, Deloitte LLP vice chairman and national managing partner for Technology, Media and Telecommunications. "NxStage has earned its position among the fastest growing companies in North America, and we are proud to honor this important accomplishment."

Fast 500 Selection and Qualifying Criteria

The Fast 500 ranks the fastest growing technology, media, telecommunications and life sciences companies in North America. It is compiled from Deloitte's 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 2003 to 2007.

Entrants must own proprietary intellectual property or proprietary technology that contribute
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