Amazon Web Services still leads the cloud computing market by a lot, but analysts expect Microsoft is catching up. Gartner's, released in July, showed Amazon's 2018 market share was more than three times the size of Microsoft's – about 47.8% to 15.5% respectively.
AWS has already acknowledged one big investment to court larger companies. Amazon Chief Financial Officer Brian Olsavsky on the company's most recent quarterly earnings call"We are investing a lot more this year in salesforce and marketing personnel mainly to handle a wider group of customers, an increasingly wide group of products — we continue to add thousands of products and features a year — and we continue to expand geographically," Olsavsky said of AWS in late October.