Europe's digital sovereignty challenges Microsoft-dominated cloud and AI infrastructure

Europe’s Digital Sovereignty Tests Microsoft’s Cloud Dominance

European governments are pressing for digital autonomy even as the continent remains heavily dependent on U.S. cloud providers, a dynamic that places Microsoft at the centre of sovereignty debates. Analysts and market data show European cloud providers hold under 15% of the market in 2025, while Amazon, Microsoft and Google together control more than 70%, leaving policymakers worried that reliance on American firms exposes European user data to U.S. legal reach such as the Cloud Act. European leaders frame technology as a question of sovereignty — not only where data is stored but who controls the infrastructure and services underpinning digital economies.

Microsoft’s position in enterprise software and cloud services gives it outsized influence on how those sovereignty concerns play out. A European Parliament report finds U.S. companies hold at least 59% of enterprise software in Europe, with Microsoft accounting for roughly 10%. At the same time hyperscalers are making massive AI-related infrastructure bets and Microsoft is directing incremental compute capacity toward internal AI projects such as Copilot and R&D, limiting the immediate availability of capacity for some external customers. That allocation of strategic, not-yet-monetised capacity adds to unease in Europe about control over critical infrastructure and the extent to which commercial decisions by a few global providers shape national digital resilience.

Closing the gap presents formidable economic and technical hurdles that EU initiatives only partially address. Analysts stress that cloud is a scale business requiring sustained investment in data centres, research, services, global operations and partner ecosystems — capabilities that European providers lack at the necessary scale. Hyperscalers are committing hundreds of billions to AI capex this year, dwarfing most national programmes, and Brussels’ toolbox of investment plans, national cloud projects and enhanced-cooperation mechanisms faces a choice between heavy consolidation and long-term funding to build viable alternatives. Absent that, Europe risks a multi-speed digital market where dependence on U.S. providers persists even as political rhetoric turns to autonomy.

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