According to IDC forecasts, public cloud IaaS revenues are set to more than triple, from $12.6 billion (£9.5bn) in 2015 to $43.6bn in 2020, at a compound annual growth rate of 28.2% over that period. The public cloud IaaS market grew 51% in 2015, according to IDC, with that growth expecting to slow after 2017 as enterprises get over the hump and move towards cloud ‘optimisation’ rather than exploration.

IDC also predicts that four in five IT organisations will be committed to hybrid architectures by 2018, arguing hybrid represents the ‘optimal path to public cloud IaaS adoption’.

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