The Real Market Size of Public Cloud Services

March 4th, 2013

This includes core infrastructure, storage and other related infrastructure. Amazon.com by far the leader in this space is estimated to have a revenue between $3.5 and $4B this year. Rackspace made a little over $1B in total revenue of which about $350 mi is estimated to be cloud revenue. There are other similar players like GoGrid, Saavis, Joyent etc. We can estimate this IaaS market to be about $5-6B in size. The long tail in this case is not statistically significant as there are a finite number of vendors.

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