Global Cloud Infrastructure Spending Hits $143 Billion, Its Fastest Growth in Eight Years

Enterprise spending on cloud infrastructure services reached $143 billion in the second quarter of 2026, a year-over-year increase of 43 percent and the fastest growth rate in eight years, according to Synergy Research Group, The Register, and InfotechLead. The quarter marked the 11th consecutive period of accelerating growth, during which the market has doubled in size, and it pushed trailing twelve-month cloud revenue to $500 billion.

AI Demand Is Reshaping a Market That Was Already Growing

Synergy Research, now part of TechInsights, said quarterly cloud infrastructure service revenue, spanning IaaS, PaaS, and hosted private cloud, rose by more than $43 billion compared with the same quarter a year earlier to reach $143.4 billion. Public IaaS and PaaS services, which make up the bulk of the market, grew 47 percent in the quarter.

John Dinsdale, chief analyst at Synergy Research Group, said the acceleration has been building for years but has turned especially sharp recently. “The accelerated cloud growth rate over the last three years, and in particular over the last four quarters, has been quite remarkable,” Dinsdale said. “AI technology has lit a fire under the cloud market and is now driving unprecedented growth. GenAI-specific cloud services are growing at 165% year over year, but equally importantly, AI technology is enabling enhanced functionality and increased growth across a much broader range of cloud services.”

Synergy said GenAI has been the primary driver of the accelerated growth, noting that its emergence lined up closely with the point at which quarterly growth rates began climbing.

The Big Three Still Dominate, but Neoclouds Are Growing Faster

Amazon Web Services remains the largest cloud infrastructure provider, with 28 percent of worldwide market share in the quarter, followed by Microsoft Azure at 20 percent and Google Cloud at 15 percent, according to Synergy’s data. Combined, the three companies account for 67 percent of cloud infrastructure spending, up from 63 percent in the third quarter of last year, The Register reported.

Below the top three, a group of smaller, AI-focused “neocloud” providers is growing faster than the market leaders. Synergy identified CoreWeave, OpenAI, Oracle, Crusoe, Nebius, Anthropic, and Nscale as the tier-two providers with the highest growth rates this quarter. Oracle holds 4 percent of overall market share and CoreWeave holds 2 percent, while nine other providers, including IBM, Snowflake, SAP, Akamai, Tencent, Baidu, and China’s three state telecom carriers, each hold around 1 percent, per The Register’s breakdown of the Synergy figures. Nine neocloud operators now rank among the top 40 cloud infrastructure providers by service revenue.

The US Is Pulling Further Ahead Geographically

The United States remains the largest cloud market by a wide margin and grew even faster than the global average, up 49 percent in the quarter, Synergy said. The firm noted that the US share of the worldwide cloud market has increased in each of the last two quarters, which it attributed to the buildout of domestic infrastructure by both hyperscale cloud operators and neoclouds.

Outside the US, the fastest-growing markets when measured in local currency were India, Indonesia, Ireland, Thailand, and Malaysia. In Europe, the UK and Germany remain the largest cloud markets, but Ireland, Norway, Denmark, and Finland are growing the fastest.

Why It Matters

The report lands as enterprises weigh how much of their AI budgets to route through the three hyperscalers versus a widening field of specialized providers. An accelerating market with a growing base of fast-scaling neoclouds gives buyers more negotiating leverage and more architecture options, but it also means procurement, cost management, and vendor risk decisions that used to involve three vendors now increasingly involve a dozen or more.