Cloud Spend Accelerates
Combined cloud infrastructure spending across Amazon Web Services, Microsoft Azure, and Google Cloud Platform reached $280 billion in the first half of 2026, according to data compiled from each company's quarterly earnings disclosures. That represents 31% year-over-year growth, the fastest pace since 2021, fueled primarily by demand for AI training and inference compute.
AWS Leads, Azure Closes the Gap
AWS remains the market share leader with approximately 33% of total cloud spending. Microsoft Azure holds 22% and is growing faster than AWS for the third consecutive year, driven by its OpenAI partnership and deep enterprise Microsoft 365 integration. Google Cloud holds 12% and is the fastest-growing of the three on a percentage basis at 42% year-over-year.
The AI Increment
AI workloads — GPU compute for training and inference, AI-specific managed services like Bedrock, Azure AI Studio, and Vertex AI, and AI-adjacent storage and networking — are estimated to account for approximately 40% of incremental H1 2026 revenue growth across the three hyperscalers, up from essentially zero in H1 2023.
CapEx Surge
All three companies are investing heavily. AWS announced $120 billion in 2026 capital expenditures. Microsoft has committed $80 billion. Google has guided to $75 billion. Combined, the three are on track to spend over $275 billion on data centers and networking infrastructure in 2026 alone — an amount that will take years to depreciate and represents a multi-year commitment to AI infrastructure.