2. Microsoft

Microsoft has to feel like it's breaking every speed record but chasing someone on the other end of the city.

The software giant out of Redmond, Wash., enjoyed growth of 124 percent year over year for its Azure cloud. That number would be impressive for a startup -- it's mind-boggling for the second biggest player in an industry.

Even after more than doubling the business in just over a year, Microsoft can only claim 9 percent of the market.

While Amazon is still just a blur in the distance, Microsoft has solidified its second-place position.