(Yicai Global) Sept. 28 -- Amazon.com Inc.'s [NASDAQ:AMZN] AWS (Amazon Web Services), Microsoft Corp.'s [NASDAQ:MSFT] Azure and Alibaba Group Holding Ltd.'s [NYSE:BABA] Aliyun held the three largest shares of the global public cloud computing market last year, and Google took fourth, American research and advisory firm Gartner Inc. [NYSE:IT] said in a report yesterday.

The top three cornered more than half of the market. Amazon dominated, increasing its market share to 44.2 percent from 39.8 percent in 2015. Microsoft demonstrated its strength in the software-as-a-service (SaaS) business, while Aliyun led China's public cloud market and expanded its international presence.

Alibaba's infrastructure-as-a-service (IaaS) business revenue was USD675 million last year, while Google's was USD500 million. Their spread widened from less than USD50 million in 2015.

Leading cloud companies will maintain their market shares, create new technologies and services, and corner almost three quarters of the market in the next four years, Gartner said.