Amazon Web Services (AWS)
Amazon Web Services is the company that invented commercial cloud computing and still leads it 20 years later, a testament to the depth of its service catalog, enterprise relationships, and infrastructure scale that no competitor has fully replicated. AWS generated approximately $115 billion in FY2025 annual revenue, confirmed across multiple quarterly earnings disclosures, with a $195 billion customer backlog representing committed future spend. Global market share stands at 28% as of Q4 2025, down slightly from 30% a year earlier as Azure and Google Cloud gain momentum, but still the largest single-provider position in cloud infrastructure history. AWS offers over 200 distinct cloud services across compute, storage, databases, networking, analytics, ML, IoT, and developer tools.
Amazon's AI cloud strategy is the most diversified in the market: Amazon Bedrock provides access to 50+ foundation models from Anthropic (Claude), Meta (Llama), Mistral, Cohere, and Amazon's own Nova series through a unified API; SageMaker is the most widely deployed MLOps platform in enterprise cloud; and Trainium3, Amazon's custom AI training chip, delivers 4.4x performance improvement over Trainium2 at 3nm, giving AWS a cost-per-training-run advantage for large workloads. Amazon has committed $150 billion to data center investment through 2028, the largest single capital commitment in cloud infrastructure history, directly addressing the GPU capacity constraints that have been the primary bottleneck for AI cloud adoption.
- ~$115B FY2025 revenue; 28% global IaaS+PaaS market share (Q4 2025)
- $195B customer backlog — largest contracted pipeline in cloud
- $150B data center investment committed through 2028
- Amazon Bedrock: 50+ foundation models including Claude, Llama, Nova
- Trainium3: 4.4x performance vs. Trainium2 — AI training chip advantage
- 200+ cloud services — broadest portfolio of any cloud provider
AWS at #1 is the cloud market's defining infrastructure provider, the company against which every other cloud is benchmarked. Its slower growth rate (18% vs. Azure's 25–39%) reflects its larger absolute base and the law of large numbers rather than competitive weakness; adding $18B in revenue on a $115B base requires the same absolute growth as adding $18B on a $60B base. The $150B capex commitment through 2028 signals Amazon's recognition that AI infrastructure capacity is the constraint determining who captures the next wave of cloud spend. For enterprises building cloud strategy, AWS remains the lowest-risk default choice by breadth of services, partner ecosystem depth, and talent availability.

