Cloud Services Revenue Reaches $312 Billion in 2020

The global public cloud services market, including Infrastructure as a Service (IaaS), System Infrastructure Software as a Service (SISaaS), Platform as a Service (PaaS), and Software as a Service (SaaS), grew 24.1 percent year over year in 2020 with revenues totaling $312 billion, according to the International Data Corporation. 

Worldwide Public Cloud Services Revenue and Year-over-Year Growth, Calendar Year 2020 (revenues in US$ billions)
Segment	2020 Revenue	Market Share	2019 Revenue	Market Share	Year-over-Year Growth
IaaS	$67.2	21.5%	$50.2	19.9%	33.9%
SaaS – System Infrastructure Software	$49.2	15.7%	$40.2	16.0%	22.4%
PaaS	$47.6	15.2%	$36.1	14.4%	31.8%
SaaS – Applications	$148.4	47.5%	$125.2	49.7%	18.6%
Total	$312.4	100%	$251.7	100%	24.1%
Source: IDC Worldwide Semiannual Public Cloud Services Tracker, 2H20

source: IDC 

The largest five public cloud service providers (Amazon Web Services, Microsoft, Salesforce.com, Google, and Oracle) captured 38 percent of global market share, growing 32 percent year over year, says IDC.

Microsoft now shares the top position with Amazon Web Services in the whole public cloud services market with both companies holding 12.8 percent revenue market share for the year (Keep in mind that Microsoft includes its end user software sales in its cloud revenues). 

source: IDC