Azure
Cloud computing
Microsoft's public cloud: computing, storage, databases and AI services rented to companies and developers by usage.
Cloud computingSince 2010Redmond, USA
How it started
Built in-house as Windows Azure.
2010the year it started
Microsoft made Windows Azure commercially available on 1 February 2010 after two years of developer testing, to move its server business into the cloud.
How big it is
How big is Azure?
$100B+Annual revenueFY2026
Its place in Microsoft
Microsoft's largest and fastest-growing business.
Azure is the engine of Microsoft Cloud and the platform that runs its AI services, including OpenAI models and Copilot.
Who it competes with
What Microsoft does not disclose
- Exact Azure revenue (Microsoft states only that it surpassed $100B in FY2026)
- Azure operating income or margin
- Azure share of Microsoft revenue (only growth rates and the $100B threshold are published)
The group behind itMicrosoft
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Sources
Every number on this page comes from Microsoft's own reports.
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