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Public Cloud

Public Cloud - The Big 3

May 07, 20253 min read

In Q1 2025, the three major public cloud providers—Amazon Web Services (AWS), Microsoft Azure, and Google Cloud—continued to show strong growth, but with some notable shifts in momentum and strategy. Here’s a summary of what we’ve seen so far and what’s expected for the rest of the year:

Q1 2025 Performance

AWS (Amazon Web Services):
AWS reported $29.3 billion in cloud revenue for Q1 2025, representing a 17% year-over-year increase. While AWS remains the market leader in absolute revenue, its growth rate has slightly decelerated compared to previous quarters (18.9% in Q4 2024). AWS continues to invest heavily in AI infrastructure and has expanded its AI portfolio with new foundation models and developer tools. However, competitive pricing in the AI space and increased infrastructure spending have put some pressure on margins. AWS is still on track to surpass a $100 billion annual revenue run rate, according to Amazon’s CEO Andy Jassy.

Microsoft Azure:
Microsoft’s Intelligent Cloud segment, which includes Azure, reported $26.8 billion in revenue, up 21% year-over-year. Azure and other cloud services specifically grew 33%, with 12 percentage points of that growth attributed to AI services. Microsoft’s overall cloud revenue was $38.9 billion, up 22%. Azure’s growth rate is now outpacing AWS and Google Cloud, driven by strong demand for AI-powered services and enterprise digital transformation. Microsoft’s investments in AI, including Copilot and its partnership with OpenAI, are paying off, and the company forecasts continued strong growth for Azure throughout 2025.

Google Cloud:
Google Cloud posted $12.3 billion in revenue, a 28% year-over-year increase. This is a strong acceleration compared to previous years, and Google continues to close the gap with AWS and Azure in terms of growth rate, though it remains third in total revenue. Google’s cloud growth is being driven by AI, data analytics, and enterprise adoption, with new AI models like Gemini 2.5 Pro expected to further boost its offerings.

Key Trends and Strategic Moves

All three providers are aggressively investing in AI infrastructure and services, with combined planned spending of over $320 billion on AI and cloud infrastructure in 2025 (Amazon targeting $100 billion, Microsoft $80 billion). The cloud business is now deeply intertwined with AI, as enterprises seek to leverage generative AI, data analytics, and automation at scale.

AWS is expanding its AI model marketplace and developer tools, Microsoft is integrating AI across its cloud and productivity platforms, and Google is leveraging its AI research to enhance its cloud offerings.

Outlook for the Rest of 2025

For the remainder of 2025, analysts expect:

  • Continued strong demand for cloud and AI services, though growth rates may moderate as the market matures and competition intensifies.

  • Ongoing heavy capital expenditure on AI infrastructure, with all three providers racing to offer the most advanced and cost-effective AI solutions.

  • Potential margin pressures, especially for AWS, as competitive pricing and infrastructure investments increase.

  • Geopolitical and macroeconomic risks, such as tariffs and global economic uncertainty, could impact growth, particularly for AWS due to its exposure to international trade policies.

  • Microsoft is expected to maintain or even extend its growth lead in cloud, thanks to its AI integration and enterprise relationships.

  • Google Cloud is likely to keep gaining market share, especially in data analytics and AI-driven workloads.

In summary, Q1 2025 confirmed that the cloud market is still growing robustly, with AI as the primary driver of innovation and competition. The rest of the year will likely see further AI-centric product launches, continued infrastructure investment, and a focus on profitability as the cloud giants jockey for leadership in the next phase of digital transformation.

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