The data displays the market share of the leading cloud infrastructure service providers as of the second and forth quarter of 2017. At that time, Amazon, via Amazon Web Services, held 34% of the cloud infrastructure services market. Amazon's share of the cloud infrastructure services market has remained steady at around a third of the total market since at least 2014. Infrastructure as a Service (IaaS) or cloud infrastructure services form one of the three core service models of the cloud computing market, along with platform as a service (PaaS) and Software as a Service (SaaS).
