The public cloud services market exited 2013 with $58 billion in revenues according to Forrester estimates. Strong growth and maturity over the past three years since our last forecast has put fuel in its tank which will push this market to $191 billion by 2020.
While the last several years can best be characterized as exploratory for most enterprises, cloud services and cloud platforms are now an undeniable part of the IT landscape. And based on Forrester enterprise CIO inquiries, the shift has begun from exploration of cloud as a potential option, to rationalization of cloud services within the overall IT portfolio. And this shift to the second stage of technology adoption yields significantly higher market revenues than the exploratory phase. Clearly the bulk of this market’s revenues come from Software as a Service (SaaS) solutions which accounted for $36 billion in revenue in 2013. This segment of the market is significantly more mature and well established in several application categories. Cloud platforms, led by Amazon Web Services LLC, were only collectively $4.7 billion last year but are maturing quickly thanks to stronger recent solutions from traditional IT partners IBM, HP and Microsoft. Drilling into the key market segments we see: