Linux server shipments grew 63% to $950 mil from Q4 2002 to Q4 2003, IDC said. At the same time, unit shipments grew 53% to about 250,000. The top Linux seller was Hewlett-Packard, with 27.5% of the market. IBM had 21.1%, and Dell had 18.2%. While those companies account for the majority of sales globally, many small companies have niches, particularly in regions that rely on very localized versions of Linux.