Europe does not lack data centers. It lacks control over the cloud layer that makes those data centers valuable.
Synergy Research's July 2025 market estimate puts Amazon, Microsoft and Google at 70% of European cloud-infrastructure revenue. European providers hold 15%. That is a cleaner measure of dependence than a building count: it follows the customer's spending, not the landlord's deed.
AI is pushing the next capacity wave toward the same kind of buyer. McKinsey forecasts that hyperscalers will drive 65–70% of European data-center demand by 2028. That is not a U.S. ownership statistic—hyperscaler demand can sit in a European-owned colocation facility—but it does say who is likely to reserve the power, specify the hardware and choose the platform.
The useful claim is therefore narrower than “America owns Europe's data centers,” and stronger for being narrower: Europe already buys most of its cloud from three U.S. companies, while AI is concentrating new infrastructure demand among buyers with hyperscale economics.
The 70% measures the layer customers buy
Europe's cloud market reached €61 billion in 2024 and generated €36 billion in the first half of 2025, according to Synergy. European providers more than tripled their revenue from 2017 to 2024, yet their share fell from 29% to 15% because the market grew sixfold. SAP and Deutsche Telekom, the two largest European providers, each hold about 2%.
The distinction matters. A company can run a workload in Frankfurt, buy power under European rules and keep its data inside the region while the product roadmap, customer relationship and margin pool sit with AWS, Microsoft Azure or Google Cloud.
The listed-stock read-through is broader than those three revenue leaders. Meta builds hyperscale capacity for its own AI products, while Oracle sells cloud capacity. Both belong on the demand side of Europe's buildout, but neither is part of Synergy's 70% top-three cloud-share figure.
AI deepens that scale advantage. Synergy says European GPU-as-a-service and generative-AI platform services are growing 140–160%—not the whole cloud market, but the AI-specific services inside it. The same research estimates that U.S. cloud providers invest roughly €10 billion each quarter in European capital programs. The next customer inherits more regions, more accelerators and more software from the platforms that already have the largest installed base.
A building count cannot identify control
Ownership, operation and tenancy are different layers. A European property company can own the shell, a global colocation company can run it, and a hyperscaler can pre-lease the power before the site opens. Calling that facility simply European or American throws away the commercial relationship that decides what runs inside.
The capacity data makes the same warning at global scale. Synergy's June 2025 analysis put hyperscalers at 44% of all data-center capacity. More than half of hyperscale capacity was in self-built, owned facilities; the balance was leased. Non-hyperscale colocation held another 22%, while on-premise facilities held 34%.
There is no public, audited ledger that converts those categories into a European U.S.-controlled megawatt share. A neat percentage would require assigning anchor tenants, operators and owners facility by facility, often without disclosed lease terms. We are not going to turn that gap into a point estimate.
AI concentrates the demand side
CBRE expects Europe's data-center market to reach 13 GW by the end of 2026, up 20% from 2025. Hyperscaler self-build is forecast to grow 22%, ahead of colocation at 18%. New European colocation signings intended for AI more than quadrupled in the first half of 2026.
McKinsey's longer view takes European demand from about 10 GW in 2023 to 35 GW in 2030. Its 65–70% hyperscaler-demand forecast for 2028 is the important bridge to the cloud-share number. It does not prove that three U.S. companies will own the same share of physical capacity. It does show that the buyer pool is becoming more concentrated around companies able to contract at hyperscale.
That is where “sovereign cloud” has to do more than put a server inside a national border. A European alternative needs customers, software and enough committed power to support the same services—not merely a locally owned building.
The models already contain the incumbency
The Amazon model, Microsoft model, Alphabet model and Meta model already carry AWS, Intelligent Cloud, Google Cloud and Meta's AI infrastructure inside global operating lines. Oracle has no published R40 model. None of these companies discloses a European split that can be inserted without inventing one.
That means the 70% share is evidence for the incumbents' scale, not new revenue to add to the forecasts. Adding Europe's €36 billion first-half market—or an assumed 70% slice of it—would double-count revenue already reported inside those cloud businesses. No model changes on this evidence. A disclosed regional revenue split, a material share shift or separate economics for sovereign-cloud contracts would be new information.
What to watch
- European provider share. A move above 15% would show that local revenue is finally growing faster than the market.
- The AI tenant list. Large pre-leases matter more when operators disclose who reserved the power and on what term.
- Sovereign-cloud economics. Revenue, margins and committed capacity would show whether regulatory separation creates a business or only a compliance wrapper.
- Power allocation. Grid connections awarded to neutral colocation, European platforms or hyperscaler campuses decide who can serve the next workload.
Ireland shows why this is no longer an abstract software-policy argument. Data centers consumed 23% of Irish metered electricity in 2025, up from 5% in 2015. When one industry takes nearly a quarter of the metered power, who controls the workload matters as much as who owns the walls.
Europe can still capture the property, power and construction value from the AI buildout. The harder layer is the one customers pay for. Today, 70 cents of every euro in that cloud market goes to Amazon, Microsoft and Google.
Cloud revenue, provider shares, AI-service growth and U.S. provider capex are Synergy Research estimates published in July 2025. Global capacity shares and the owned-versus-leased hyperscale split are from Synergy's June 2025 analysis. European 2026 capacity and leasing growth are CBRE forecasts from August 2026. The 2028 hyperscaler-demand share and 2030 demand forecast are McKinsey estimates; its Europe definition includes the EU, Norway, Switzerland and the UK. Ireland's electricity shares are reported by its Central Statistics Office. No European U.S.-controlled megawatt share is asserted because the public sources do not support one.
