Amazon Web Services closed 2025 with its strongest quarterly growth rate in more than three years, reporting $35.6 billion in fourth-quarter revenue. The figure represents a 24% year-on-year increase and marks AWS’s fastest expansion in 13 quarters. Amazon said the cloud unit’s annual revenue run rate reached $142 billion, while operating income rose to $12.5 billion from $10.6 billion a year earlier.
Chief Executive Officer Andy Jassy said growth at AWS reflects scale advantages, noting that adding 24% growth on a large revenue base sets the business apart from competitors. Fourth-quarter momentum was supported by new contracts with Salesforce, BlackRock, Perplexity, and the U.S. Air Force. AWS also added more than a gigawatt of power capacity to its data center network during the period.
Jassy said enterprise customers continue to migrate infrastructure from on-premise systems to the cloud, while demand for AI workloads is accelerating usage across AWS’s computing stack. AWS accounted for 16.6% of Amazon’s $213.4 billion in total fourth-quarter revenue. Despite the strong performance, Amazon shares fell in after-hours trading after the company announced higher capital spending and missed earnings per share expectations.
