NxStage Medical (Lawrence, Massachusetts) said it has been recognized as the fourth largest revenue gainer in Massachusetts by the Boston Business Journal, ranked by percent change in revenue. NxStage also is the 111th company on the BBJ's ove`rall Massachusetts Top 150 Public Companies, ranked in terms of total 2008 revenue. The full list of the BBJ 150 appears in the May 8 issue of the publication.

NxStage Medical makes products for the treatment of end stage renal disease and acute kidney failure.