Big Three Hold Dominant Lead in Accelerating Cloud Market

After having established itself as an early leader in the market for cloud infrastructure, AWS is still ahead of the pack. According to estimates from Synergy Research Group, Amazon’s market share in the worldwide cloud infrastructure market amounted to 28 percent in the first quarter of 2026, ahead of Microsoft's Azure platform at 21 percent and Google Cloud at 14 percent. Together, the "Big Three" hyperscalers account for more than 60 percent of the ever-growing cloud market, with the rest of the competition stuck in the low single digits.

In Q1 2026, global cloud infrastructure service spending grew 35 percent compared to the same period of 2025, bringing total spending to $129 billion for the three months ended March 31. Looking ahead, cloud infrastructure service revenues are on track to exceed $500 billion for the first time in 2026, explaining why the market is so fiercely contested. Despite its size, the cloud market is still growing strongly, with year-over-year growth now accelerating for ten consecutive quarters. Thanks to the AI boom and the computing requirements that come with it last quarter's growth rate was the highest since 2021, when the market wasn't even half of its current size.

"Ever since ChatGPT was launched in late 2022, the cloud market has gone into overdrive,” John Dinsdale, chief analyst at Synergy Research Group said. "Despite the enormous scale of the cloud market, in Q1 the cloud market growth rate increased for the tenth successive quarter, jumping up another four percentage points from Q4 of last year."