"New Q1 data from Synergy Research Group shows that Microsoft has grown its cloud infrastructure service revenues remarkably in the last year and is now pulling away from the pack of operators that are chasing Amazon (AWS)"

Source: https://www.srgresearch.com/articles/microsoft-pulling-ahead-pack-chasing-amazon

“Microsoft’s cloud growth really is impressive” said John Dinsdale, a Chief Analyst and Research Director at Synergy Research Group. “A combination of marketing muscle and credibility with the target audience is helping it to make great strides. Nonetheless, Amazon’s revenues are still more than three times those of Microsoft and it will remain in a league of its own for the foreseeable future.”
Source: https://www.srgresearch.com/articles/microsoft-pulling-ahead-pack-chasing-amazon