The global cloud infrastructure services market closed Q4 2025 with $110.9 billion in spending, a 29% increase compared to the previous year, according to Omdia. The firm highlights that this marks the sixth consecutive quarter with growth over 20%, signaling that demand is no longer solely driven by normal cloud migration cycles but also by the combined effects of Artificial Intelligence, increased capacity, and the deployment of new enterprise use cases.
The most interesting takeaway from the report isn’t just the market size but how competition is shifting. AWS maintains its leadership worldwide with a 32% share in Q4 2025, ahead of Microsoft Azure with 22% and Google Cloud with 12%. However, the chart from Omdia spanning Q1 2021 to Q4 2025 shows a clear trend: AWS continues to dominate, but Azure and Google Cloud have steadily gained ground, supported by faster growth and an increasingly platform-like offering connected to AI and agent tools.
| Provider | Market Share in Q4 2025 | YoY Growth in Q4 2025 | Trend Analysis (Q1 2021 – Q4 2025) |
|---|---|---|---|
| AWS | 32% | 24% | Remains leader, with a share above 30% throughout the period |
| Microsoft Azure | 22% | 39% | Sustained growth with a closing gap to AWS |
| Google Cloud | 12% | 50% | Fastest accelerating, consolidating a steady share increase |
Omdia suggests that cloud is entering a new phase. For years, the battle centered on capacity, service catalog, and geographic expansion. Now, the firm argues, differentiation increasingly hinges on three less visible but more decisive factors: infrastructure scale, capital efficiency, and the strength of AI agent capabilities. In other words, it’s not enough to deploy more regions or GPUs; transforming that infrastructure into a manageable, orchestrable, and enterprise-valuable environment is key.
AI is no longer driven solely by GPUs
A key message from the report is that AI demand has shifted away from just specialized compute. Omdia notes that current growth is also pulling in CPUs, storage, and networking, confirming that AI is broadening the cloud market beyond model training and GPU inference. As companies move from experimentation to production deployment, they require comprehensive environments for data, automation, security, governance, and workflow execution.
This nuance explains why market growth has remained above 20% for six straight quarters. It’s not just a wave triggered by large models but a deeper expansion of the entire stack. Omdia emphasizes that agents, workflows, and integration with enterprise data are reinforcing cloud’s role as the operational backbone of AI. This aligns with the initiatives of major hyperscalers, which now sell full platforms for building, deploying, and governing AI systems within corporate environments.
AWS continues to set the benchmark by size. Amazon reported a 24% year-over-year growth in Q4 2025, reaching $35.6 billion in quarterly revenue, and closed the year with $128.7 billion in annual sales. Andy Jassy also mentioned that Amazon plans to invest around $200 billion in capex in 2026, driven by demand in areas like AI, chips, robotics, and other infrastructure businesses.
Azure and Google focus on growth, not size
Meanwhile, Microsoft and Google are demonstrating even stronger acceleration. In July 2025, Microsoft announced that Azure and other cloud services grew 39% YoY in its fiscal Q4, with Azure surpassing $75 billion in annual revenue for the first time in 2025. Omdia adds that Microsoft increased its quarterly capex to $37.5 billion—almost $15 billion more than a year earlier—reflecting direct investment in AI infrastructure.
Google Cloud, on the other hand, was the fastest-growing among the big three in Q4 2025. Alphabet reported a 48% YoY increase, reaching $17.7 billion in the quarter, with a backlog of $240 billion at the end of the fiscal year. The company also projects capex between $175 billion and $185 billion for 2026, primarily dedicated to technical infrastructure. Omdia estimates Google Cloud’s growth at 50% with a 12% market share—indicating that, although still behind AWS and Azure, it is the fastest accelerating player in this cycle phase.
This constellation of moves reveals an interesting paradox. AWS remains the clear market leader, but its advantage is not as comfortable as in previous years. Omdia’s chart shows a gradual erosion of its share against the steady improvements by Azure and the more gradual yet consistent gains by Google Cloud. While not a market overhaul, this signals a progressive balancing of forces in a business where each percentage point of market share translates into tens of billions of dollars.
The next battleground will be the agent layer
Omdia believes competition is shifting from pure infrastructure scale toward the application layer, especially around AI agents. The main argument is straightforward: for enterprise clients, value isn’t just accessing models but integrating them seamlessly with existing systems, data, and processes—reliably, with control, and at scale. This demand is driving providers to invest more in orchestration, governance, and execution tools.
This also explains Omdia’s outlook for 2026. The firm expects global cloud infrastructure spending to grow another 27%, slightly below the 29% of Q4 2025 but still very high for a market of this size. The core conclusion is not that cloud has entered a “new normal,” but the opposite: the sector remains in expansion mode, with AI acting as a multiplier for demand, CapEx, and competitive pressures.
For the tech industry, the overarching message is clear. The cloud no longer competes solely on cost, breadth, or global reach. It competes to be the platform where enterprise AI can go from pilot to daily operation. In this race, AWS maintains the lead, but Azure and Google Cloud are proving that growth will be uneven and that the market share distribution remains open.
Frequently Asked Questions
How much did the global cloud infrastructure market spend in Q4 2025?
Omdia estimates total spending at $110.9 billion, with a 29% YoY increase.
What is the market share of AWS, Azure, and Google Cloud?
According to Omdia, AWS held 32%, Microsoft Azure 22%, and Google Cloud 12% in Q4 2025.
Why is AI driving cloud spending so rapidly?
Because AI demand now extends beyond GPU compute, increasing needs for CPU, storage, networking, orchestration, governance, and data integration for enterprise deployments beyond experimentation.
What does Omdia expect for the cloud market in 2026?
The firm forecasts a 27% increase in global cloud infrastructure spending, with competition increasingly focused on scale, capital efficiency, and AI agent capabilities.
via: omdia.tech